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Data Sheet, Rev. 1.1, April 2009
SPIDER - TLE 7240SL
8 Channel Protected Low-Side Relay Switch
Automotive
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Table of Contents
Table of Contents
1 2 3 3.1 3.2 3.3 4 4.1 4.2 4.3 5 5.1 5.1.1 5.2 5.2.1 5.2.2 5.3 6 6.1 6.2 6.3 6.4 7 7.1 8 8.1 8.2 8.3 8.3.1 8.4 9 10 11 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage and Current naming definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 6 8
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Input and Power Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limp Home Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inductive Output Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input and Power Stages Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Over Load Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Over Temperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reverse Polarity Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Protection Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 11 11 11 12 13 14 16 16 16 16 17
Diagnosis Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Diagnosis Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPI Signal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Daisy Chain Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPI Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPI Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 19 20 21 22 23
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Data Sheet
2
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER-TLE7240SL
SPIDER - TLE 7240SL
1
Features * * * * * * *
Overview
4 input pins providing flexible PWM configuration Limp home functionality (direct driving) provided by a dedicated pin 16 bit SPI for diagnostics and control Daisy chain capability also compatible with 8bit SPI devices Very wide range of digital supply voltage Green Product (RoHS compliant) AEC Qualified PG-SSOP-24-7
Description The SPIDER - TLE 7240SL is a eight channel low-side switch in PG-SSOP-24-7 package providing embedded protective functions. It is especially designed as relay driver in automotive applications. A serial peripheral interface (SPI) is utilized for control and diagnosis of the device and the load. For direct control and PWM there are four input pins available. The device is monolithically integrated. The power transistors are built by N-channel MOSFETs. Table 1 Basic Electrical data 3.0 V ... 5.5 V 4.5 V ... 5.5 V 3.0 210 mA 950 mA 1 A 41 V 5 MHz
VDD Analog supply voltage VDDA Max. ON State resistance at Tj = 150C for each channel RDS(ON,max) Nominal load current IL (nom) Overload switch off threshold ID (OVL,max) Output leakage current per channel at 25 C ID (STB,max) Drain to Source clamping voltage VDS(AZ) Maximum SPI clock frequency fSCLK,max
Digital supply voltage Diagnostic Features * * * * latched diagnostic information via SPI register Overtemperature monitoring Overload detection in ON state Open load detection in OFF state
Type SPIDER - TLE 7240SL Data Sheet
Package PG-SSOP-24-7 3
Marking TLE7240SL Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Overview Protection Functions * * * * Short circuit Over load Over temperature Electrostatic discharge (ESD)
Application * * All types of resistive, inductive and capacitive loads Especially designed for driving relays in automotive applications
Detailed Description The SPIDER - TLE 7240SL is a eight channel low-side relay switch designed for typical automotive relays providing embedded protective functions. The PG-SSOP-24-7 package is used to get a footprint optimized solution. The 16 bit serial peripheral interface (SPI) is utilized for control and diagnosis of the device and the loads. The SPI interface provides daisy chain capability. The SPIDER - TLE 7240SL is equipped with four input pins that can be individually routed to the output control of their dedicated channels thus offering flexibility in design and PCB layout. The input multiplexer is controlled via SPI. There is a dedicated limp home pin LHI which provides a straightforward usage of the input pins as dedicated driver for four outputs. The device provides full diagnosis of the load, which is open load as well as short circuit detection. The SPI diagnosis bits indicate latched fault conditions that may have occurred. Each output stage is protected against short circuit. In case of over load, the affected channel switches off. There are temperature sensors available for each channel to protect the device in case of over temperature. The device is supplied by two power supply lines. The analog supply supports 5 V, the digital supply offers a very wide flexibility in supply voltage ranging from 3.0 V up to 5.5 V. The power transistors are built by N-channel vertical power MOSFETs. The inputs are ground referenced CMOS compatible. The device is monolithically integrated in Smart Power Technology. In terms of PCB layout improvement, all output pins are available at one side of the device. The other side bundle the signals to the micro-controller.
Data Sheet
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Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Block Diagram
2
Block Diagram
VDD VDDA OUT1 OUT2 RST IN1 IN2 IN3 IN4 LHI CS SCLK SI SO diagnosis register SPI input mux and control stand-by control OUT3 OUT4 OUT5 OUT6 OUT7 control, diagnostic and protective functions OUT8 temperature sensor short circuit detection gate control open load detection
GND
Blockdiagram .emf
Figure 1
Block Diagram for the SPIDER - TLE 7240SL
Data Sheet
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Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Pin Configuration
3
3.1
Pin Configuration
Pin Assignment
(top view )
GND GND OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 GND GND
Figure 2 Pin Configuration
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VDDA CS SI RST SCLK SO LHI IN1 IN2 IN3 IN4 VDD
Pinout.emf
3.2
20
Pin Definitions and Functions
Symbol VDD VDDA I/O O O O O O O O O I I
1)
Pin 13 24
Function Digital Supply Voltage; Connected to 3.3V or 5V Voltage with Reverse protection Diode and Filter against EMC Analog Supply Voltage;Connected to 5V Voltage with Reverse protection Diode and Filter against EMC Ground; common ground for digital, analog and power Output Channel 1; Drain of power transistor channel 1 Output Channel 2; Drain of power transistor channel 2 Output Channel 3; Drain of power transistor channel 3 Output Channel 4; Drain of power transistor channel 4 Output Channel 5; Drain of power transistor channel 5 Output Channel 6; Drain of power transistor channel 6 Output Channel 7; Drain of power transistor channel 7 Output Channel 8; Drain of power transistor channel 8
Power Supply
1,2,11,12 GND Power Stages 3 4 5 6 7 8 9 10 Inputs 17 16 IN1 IN2 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
PD Control Input; Digital input 3.3 V or 5V. In case of not used keep open. PD Control Input; Digital input 3.3 V or 5V. In case of not used keep open. 6 Rev. 1.1, 2009-04-15
Data Sheet
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Pin Configuration Pin 15 14 18 21 SPI 23 20 22 19 CS SCLK SI SO I I I O PU SPI chip select; Digital input 3.3 V or 5V.Low active PD serial clock; Digital input 3.3 V or 5V. PD serial data in; Digital input 3.3 V or 5V. serial data out; Digital output with voltage level referring to VDD. Symbol IN3 IN4 LHI RST I/O I I I I
1)
Function
PD Control Input; Digital input 3.3 V or 5V. In case of not used keep open. PD Control Input; Digital input 3.3 V or 5V. In case of not used keep open. PD Limp Home; Digital input 3.3 V or 5V. In case of not used keep open. PD Reset input pin; Digital input 3.3 V or 5V. Low active
1) O: Output, I: Input, PD: pull-down resistor integrated, PU pull-up resistor integrated
Data Sheet
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Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Pin Configuration
3.3
Voltage and Current naming definition
Figure 3 shows all the terms used in this data sheet, with associated convention for positive values.
Vbat
IDDA V DDA VDD VRST IIN1 IN1 VIN1 VIN 2 VIN3 IIN2 I IN3 I IN4 IN4 LHI OUT8 CS SCLK SI SO GND IGND IN2 IN3 OUT6 OUT7 IDD I RST VDDA VDD RST OUT1 OUT2 OUT3 OUT4 OUT5
I D1 I D2 I D3 I D4 I D5 I D6 I D7 I D8 I
CS
V DS1 V DS2 VDS3 VDS4 VDS 5 VDS 6 V DS7 V DS8
V IN4 I LHI VLHI
I SCLK VCS I SI V SCLK ISO V SI VSO
Terms.emf
Figure 3
Terms
Data Sheet
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Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
General Product Characteristics
4
4.1
General Product Characteristics
Absolute Maximum Ratings
Absolute Maximum Ratings 1) Unless otherwise specified: Tj = -40 C to +150 C; VDD = 3.0 V to VDDA, VDDA= 4.5V to 5.5V all voltages with respect to ground, positive current flowing into pin Pos. Parameter Symbol Limit Values Min. Power Supply 4.1.1 4.1.2 4.1.3 Digital supply voltage Analog supply voltage Max. 5.5 5.5 36 V V V - - - Unit Conditions
VDD
VDDA
-0.3 -0.3 0
Output voltage for short circuit protection VOUT (single pulse) Load current Voltage at power transistor Maximum energy dissipation one channel
ID VDS EAS
Power Stages 4.1.4 4.1.5 4.1.6 -0.5 - 0.5 41 A V mJ active clamped Vbat=16V, Vclamp=45V, tpulse= 4 ms
Tj(0) = 150 C ID(0) = 0.40 A Tj(0) = 105 C ID(0) = 0.35 A ID(0) = 0.35 A
2)
single pulse repetitive (1 * 104 cycles) repetitive (1 * 106 cycles) Logic Pins 4.1.7 4.1.8 4.1.9 4.1.10 4.1.11 4.1.12 4.1.13 4.1.14 4.1.15 4.1.16
1) 2) 3) 4)
-
EAR
75 38 19 5.5 5.5 5.5 V V V V V V V C C 4 kV
- -
IN1,IN2,IN3,IN4;Voltage at input pins RST; Voltage at reset pin LHI; Voltage at limp home input pin CS; Voltage at chip select SCLK; Voltage at serial clock pin SI; Voltage at serial input pin SO; Voltage at serial output pin Junction Temperature Storage Temperature ESD Resistivity
VIN VRST VLHI VCS VSCLK VSI VSO Tj Tstg
VESD
-0.3 -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 -40 -55 -4
VDD + 0.3 VDD + 0.3 VDD + 0.3 VDD + 0.3
150 150
3) 3) 3) 3)
Temperatures - - HBM4)
ESD Susceptibility
Not subject to production test, specified by design. Pulse shape represents inductive switch off: ID(t) = ID(0) x (1 - t / tpulse); 0 < t < tpulse level must not exceed VDD+0.3V < 5.5 V ESD susceptibility, HBM according to EIA/JESD 22-A114
Data Sheet
9
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
General Product Characteristics Note: Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as "outside" normal operating range. Protection functions are not designed for continuous repetitive operation.
4.2
Pos. 4.2.1 4.2.1 4.2.2
Functional Range
Parameter Digital supply voltage Analog supply voltage extended supply range Symbol Min. Limit Values Max. 5.5 5.5 4.5 V V - - parameter deviations are possible A mA
Tj = 85 C
Unit
Conditions
VDD VDDA VDDA
3.0 4.5 4.0
4.2.3 4.2.4
Digital Supply current in reset mode IDD(RST) Digital supply current (all channels active)
- -
10 0.5
IDD(ON)
VDD = VDDA = 5 V VRST = VCS = VDD VSCLK = 0 V VIN = 0 V
4.2.5
Analog supply current (all channels active)
IDDA(ON)
-
5
mA
Note: Within the functional range the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the related electrical characteristics table.
4.3
Thermal Resistance
Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go to www.jedec.org.
Pos. 4.3.6 4.3.7 4.3.8
Parameter Junction to Soldering Point Junction to Ambient (1s0p+600mm2Cu) Junction to Ambient (2s2p)
Symbol Min.
Limit Values Typ. - 68 62 Max. 25 - - - - -
Unit K/W K/W K/W
Conditions
1) 2)
RthJSP RthJA RthJA
1) 3)
1) 4)
1) Not subject to production test, specified by design 2) Specified RthJSP value is simulated at natural convection on a cold plate setup (all pins are fixed to ambient temperature). Ta = 25 C. LS1 to LS8 are dissipating 1 W power (0.125 W each). 3) Specified RthJA value is according to Jedec JESD51-2,-3 at natural convection on FR4 1s0p board; The product (Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm board with additional heatspreading copper area of 600mm2 and 70 m thickness. Ta = 25 C, LS1 to LS8 are dissipating 1 W power (0.125 W each). 4) Specified RthJA value is according to Jedec JESD51-2,-7 at natural convection on FR4 2s2p board; The product (Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70 m Cu, 2 x 35 m Cu). Ta = 25 C, LS1 to LS8 are dissipating 1 W power (0.125 W each).
Data Sheet
10
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Input and Power Stages
5
Input and Power Stages
The SPIDER - TLE 7240SL is a eight channel low-side relay switch. The power stages are built by N-channel vertical power MOSFET transistors.
5.1
Power Supply
The SPIDER - TLE 7240SL is supplied by two power supply lines VDD and VDDA. The digital power supply line VDD is designed to be functional at a very wide voltage range. The analog power supply VDDA supports 5 V supply. There are power-on reset functions implemented for both supply lines. After start-up of the power supply, all SPI registers are reset to their default values and the device is in stand-by mode. Capacitors at pins VDD -GND and VDDA -GND are recommended. There is a reset pin available. Low level at this pin causes all registers to be set to their default values and the quiescent supply currents are minimized.
5.1.1
Limp Home Mode
The SPIDER - TLE 7240SL offers the capability of driving dedicated channels during eventual fail-safe operation of the system. This limp home mode is activated by a high signal at pin LHI. In this mode, the SPI registers are reset and the input pins are directly routed to their corresponding channels OUT1 to OUT4, see Table 2 for details. OUT5 to OUT8 are turned off in limp home mode. Furthermore, the SPI is ignored and all input pin are referred to VDDA in order to ensure a defined operation mode if the digital supply or the microcontroller fail. A high signal on LHI overrides a Reset signal on RST. In case of a limp home during standby the device will therefore wake up and enter the limp home mode. After limp home operation all registers are reset and the device enters in standby mode following low logic RST state, or returns to idle (all channels OFF). Next SPI transmission will receive a TER Flag. Input IN1 IN2 IN3 IN4 Table 2 Routing during limp home mode controlled Output OUT1 OUT2 OUT3 OUT4
5.2
Input Circuit
There are four input pins available at SPIDER - TLE 7240SL, which can be configured to be used for control of the output stages. The INn parameter of the SPI selects the input pin to be used. Figure 4 shows the input circuit of SPIDER - TLE 7240SL. During Limp home mode a default routing is switched and the SPI commands are ignored.
Data Sheet
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Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Input and Power Stages
OFF ON OFF
IN1
Channel 1
IN1
OFF ON OFF IN2
LHI
Channel 2
IN2
OFF ON IN3
LHI
Channel 3
IN1 IIN 1
OFF
IN3
OFF IN4
LHI
Channel 4
IN2 IIN 2
ON OFF
IN4 IN3 IIN 3
ON OFF OFF OFF
LHI
Channel 5
IN4 IIN 4
OFF
IN5
LHI
Channel 6
OFF
ON OFF
IN6
OFF OFF ON OFF
LHI
Channel 7
LHI ILHI
LHI
OFF
IN7
LHI
Channel 8
OFF
ON OFF
IN8
LHI
InputLogic .emf
Figure 4
Input matrix and logic
The current sink to ground ensures that the channels switch off in case of open input pin. The zener diode protects the input circuit against ESD pulses. After power-on reset, the device enters idle mode (all channel OFF).
5.2.1
Inductive Output Clamp
When switching off inductive loads, the potential at pin OUT rises to VDS(CL) potential, because the inductance intends to continue driving the current. The voltage clamping is necessary to prevent destruction of the device, see Figure 5 for details. Nevertheless, the maximum allowed load inductance is limited.
Data Sheet
12
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Input and Power Stages
Vbat ID VDS L, RL
OUT VDS (CL)
GND
OutputClamp .emf
Figure 5
Output Clamp Implementation
Maximum Load Inductance During demagnetization of inductive loads, energy has to be dissipated in the SPIDER - TLE 7240SL. This energy can be calculated with following equation:
V bat - V DS(CL) RL IL L E = V DS(CL) ----------------------------------- ln 1 - ----------------------------------- + I L -----RL RL V bat - V DS(CL)
Following equation simplifies under the assumption of RL = 0:
V bat 2 1 E = -- LI L 1 - ----------------------------------- 2 V bat - V DS(CL)
The maximum energy, which is converted into heat, is limited by the thermal design of the component.
5.2.2
Timing Diagrams
The power transistors are switched on and off with a dedicated slope via the IN bits of the serial peripheral interface SPI. The switching times tON and tOFF are designed equally.
CS SPI: ON tON SPI: OFF tOFF t
VDS
80%
20%
t
SwitchOn.emf
Figure 6
Switching a Resistive Load
In input mode, a high signal at the input pin is equivalent to a SPI ON command and a low signal to SPI OFF command respectively. Please refer to Section 8.3 for details on operation modes. Note: The listed switching times are not valid, when switching to or from stand-by mode.
Data Sheet
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Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Input and Power Stages
5.3
Input and Power Stages Characteristics
Note: Characteristics show the deviation of parameter at given supply voltage and junction temperature. Typical values show the typical parameters expected from manufacturing. Electrical Characteristics: Supply and Input All voltages with respect to ground, positive current flowing into pin unless otherwise specified: VDD = 3.0 V to VDDA, VDDA= 4.5V to 5.5V, Tj = -40 C to +150 C Pos. Parameter Symbol Min. Power Supply 5.3.1 5.3.2 Digital supply voltage ON Limit Values Typ. - - Max. 5.5 0.5 V mA Unit Conditions
VDD Digital supply current, all channels IDD(ON)
3.0 -
VDD = VDDA = 5 V VRST = VCS = VDD VSCLK = 0 V VIN = 0 V
fSCLK = 0 Hz VCS = VDD Tj = 25 C 1) Tj = 85 C 1) Tj = 150 C VRST =VLHI = 0 V Tj = 25 C 1) Tj = 85 C 1) Tj = 150 C
5.3.3
Digital supply stand-by current, all channels in stand-by mode
IDD(STB)
- - - - - - - - - - 4.5 - - - 20 20 40
A
5.3.4
Digital supply reset current
IDD(RST)
- - - 10 10 20 2.7 5.5 5
A
5.3.5 5.3.6 5.3.7 5.3.8
Digital power-on reset threshold voltage Analog supply voltage Analog supply current all channels ON Analog supply stand-by current all channels in stand-by mode
VDD(PO) VDDA IDDA(ON) IDDA(STB)
- - -
V V mA A
VCS = VDD
VSI = 0 V VSCLK = 0 V Tj = 25 C 1) Tj = 85 C 1) Tj = 150 C
- - - - - - - -
20 20 40 A 5 5 20 4.5 V
5.3.9
Analog supply reset current
IDDA(RST)
- - - - -
VRST =VLHI = 0 V Tj = 25 C 1) Tj = 85 C 1) Tj = 150 C
5.3.10
Analog power-on reset threshold VDDA(PO) voltage
Data Sheet
14
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Input and Power Stages Electrical Characteristics: Supply and Input All voltages with respect to ground, positive current flowing into pin unless otherwise specified: VDD = 3.0 V to VDDA, VDDA= 4.5V to 5.5V, Tj = -40 C to +150 C Pos. Parameter Symbol Min. Output characteristics 5.3.11 On-State resistance per channel
RDS(ON)
Limit Values Typ. 1.5 2.2 - Max. - 3.0 -
Unit
Conditions
- -
IL = 180 mA Tj = 25 C 1) IL = 180 mA Tj = 150 C
5.3.12
Nominal load current
IL(nom)
210
mA
5.3.13
Output leakage current in stand-by ID(STB) mode (per channel) Output clamping voltage
L level of pins IN1..IN4 and LHI H level of pins IN1..IN4 and LHI L-input pull-down current through pin IN H-input pull-down current through pin IN L level of pin RST H level of pin RST L-input pull-down current through pin RST H-input pull-down current through pin RST
A - - - 41 0 2.0 3 10 - - - - - - 12 40 1 2 5 54 0.6 5.5 80 80 V
V V A A
all channels on Ta = 85 C Tj,max = 150 C based on Rthja,2s2p VDS = 13.5 V
Tj = 25 C 1) Tj = 85 C 1) Tj = 150 C
1)
5.3.14 5.3.15 5.3.16 5.3.17 5.3.18
VDS(CL) VIN(L) VIN(H)
Input Characteristics
2)
IIN(L) IIN(H)
1)
VIN = 0.6 V
VDD = 5.5 V VIN = VDD
Reset Characteristics 5.3.19 5.3.20 5.3.21 5.3.22 Timings 5.3.23 5.3.24 5.3.25 Reset wake-up time Reset and LHI signal duration Turn-on time VDS = 20% Vbat all channels 5.3.26 Turn-off time VDS = 80% Vbb all channels
1) not subject to production test 2) level must not exceed VDD+0.3V < 5.5 V
VRST(L) VRST(H) IRST(L) IRST(H)
0 0.4*
- - 12 40
0.2*
VDD
3 10
VDD VDD
80 80
A A
1)
VRST = 0.6 V
VDD = 5.5 V VRST = VDD
twu(RST) tRST(L) tON
- 50
- - 30
200 - 50
s s s
Vbat = 13.5 V resistive load
IDS = 180 mA
tOFF
-
30
50
s
Vbat = 13.5 V resistive load
IDS = 180 mA
Data Sheet
15
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Protection Functions
6
Protection Functions
The device provides embedded protective functions. Integrated protection functions are designed to prevent IC destruction under fault conditions described in this data sheet. Fault conditions are considered as "outside" normal operating range. Protection functions are not designed for continuous repetitive operation.
6.1
Over Load Protection
The SPIDER - TLE 7240SL is protected in case of over load or short circuit of the load. After time tOFF(OVL), the over loaded channel n switches off and the according diagnosis flag Dn is set.The channel can be switched on after clearing the diagnosis flag. Please refer to Figure 7 for details.
IN1 tOFF(OVL) IOUT1 IOUT(OVL) Program OUT 1 to STANDBY and to IN1 again t
IN1 = 01b D1 = 0b
t D1 = 1b D1 = 0b
OverLoad.emf
Figure 7
Shut down at over load
The current sink to ground ensures that the channels switch off in case of open input pin. The zener diode protects the input circuit against ESD pulses. After power-on reset, the device enters idle mode.
6.2
Over Temperature Protection
A temperature sensor for each channel causes an overheated channel n to switch off to prevent destruction and the according diagnosis flag Dn is set. The channel can be switched on after clearing the diagnosis flag. Please refer to Chapter 7.1 for information on diagnosis features.
6.3
Reverse Polarity Protection
In case of reverse polarity, the intrinsic body diode of the power transistor causes power dissipation. The reverse current through the intrinsic body diode of the power transistor has to be limited by the connected load. The VDD and VDDA supply pins must be protected against reverse polarity externally. The over temperature and over load protection is not active during reverse polarity.
Data Sheet
16
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Protection Functions
6.4
Protection Characteristics
Note: Characteristics show the deviation of parameter at given supply voltage and junction temperature. Typical values show the typical parameters expected from manufacturing. Electrical Characteristics: Protection All voltages with respect to ground, positive current flowing into pin unless otherwise specified: VDD = 3.0 V to VDDA, VDDA= 4.5V to 5.5V, Tj = -40 C to +150 C Pos. Parameter Symbol Min. Over Load Protection 6.4.1 6.4.2 6.4.3 Over load detection current all channels Over load shut-down delay time Thermal shut down temperature
tOFF(OVL) Tj(SC) ID(OVL)
Limit Values Typ. Max. 0.95 50 1701)
Unit
Conditions
0.5 3 150
A s C
Over Temperature Protection
1) Not subject to production test, specified by design
Data Sheet
17
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Diagnosis Features
7
Diagnosis Features
The SPI of SPIDER - TLE 7240SL provides diagnosis information about the device and about the load. There are following diagnosis flags implemented: The diagnosis information of the protective functions of channel n is latched in the diagnosis flag Dn. The open load diagnosis of channel n is latched in the diagnosis flag OLn. Both flags are cleared by programming the specific channel to Standby (STB).
Failure Mode Comment
Open Load or short circuit Diagnosis, when channel n is switched on: none to ground Diagnosis, when channel n is switched off: according to voltage level at the output pin, flag OLn is set after time td(OL). When the channel is in OFF there is Diagnosis active, in Standby the Diagnosis is not enabled Over Temperature When over temperature occurs, the according diagnosis flag Dn is set. If the affected channel n was active it is switched off. The diagnosis flags are latched until they have been cleared by programming the channel STB. When over load is detected at channel n, the affected channel is switched off after time tOFF(OVL) and the dedicated diagnosis flag Dn is set. The diagnosis flags are latched until they have been cleared by programming the channel STB
Over Load (Short Circuit)
7.1
Diagnosis Characteristics
Note: Characteristics show the deviation of parameter at given supply voltage and junction temperature. Typical values show the typical parameters expected from manufacturing. Electrical Characteristics: Diagnosis All voltages with respect to ground, positive current flowing into pin unless otherwise specified: VDD = 3.0 V to VDDA, VDDA= 4.5V to 5.5V, Tj = -40 C to +150 C Pos. Parameter Symbol Min. OFF State Diagnosis 7.1.1 7.1.2 7.1.3 7.1.4 7.1.5 Open load detection threshold voltage Limit Values Typ. Max. 2.5 80 30 0.5 3 200 0.95 50 V A s A s Unit Conditions
VDS(OL)
1.0
Output pull-down diagnosis current ID(PD) per channel Open load diagnosis delay time Over load detection current Over load detection delay time
VDS = 13.5 V
td(OL) ID(OVL) tOFF(OVL)
ON State Diagnosis
Data Sheet
18
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Serial Peripheral Interface (SPI)
8
Serial Peripheral Interface (SPI)
The diagnosis and control interface is based on a serial peripheral interface (SPI). The SPI is a full duplex synchronous serial slave interface, which uses four lines: SO, SI, SCLK and CS. Data is transferred by the lines SI and SO at the data rate given by SCLK. The falling edge of CS indicates the beginning of a data access. Data is sampled in on line SI at the falling edge of SCLK and shifted out on line SO at the rising edge of SCLK. Each access must be terminated by a rising edge of CS. A modulo 8 counter ensures that data is taken only, when a multiple of 8 bit has been transferred, while the minimum of 16 bit is also taken into consideration. Therefore the interface provides daisy chain capability even with 8 bit SPI devices.
SO SI CS SCLK
time
MSB MSB
14 14
13 13
12 12
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
LSB LSB
SPI.emf
Figure 8
Serial peripheral interface
The SPI protocol is described in Section 8.3. It is reset to the default values after power-on reset.
8.1
SPI Signal Description
CS - Chip Select: The system micro controller selects the SPIDER - TLE 7240SL by means of the CS pin. Whenever the pin is in low state, data transfer can take place. When CS is in high state, any signals at the SCLK and SI pins are ignored and SO is forced into a high impedance state. CS High to Low transition: * * The diagnosis information is transferred into the shift register. SO changes from high impedance state to high or low state depending on the logic OR combination between the transmission error flag (TER) and the signal level at pin SI. As a result, even in daisy chain configuration, a high signal indicates a faulty transmission. The transmission error flag is set after any kind of reset, so a reset between two SPI commands is indicated. For details, please refer to Figure 9. This information stays available to the first rising edge of SCLK.
TER SI
OR
1 0
SO
SI
CS SCLK S
SPI
SO S
TER.emf
Figure 9 Data Sheet
Transmission Error Flag on SO Line
19
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Serial Peripheral Interface (SPI) CS Low to High transition: Data from shift register is transferred into the input matrix register only, when after the falling edge of CS exactly a multiple (1, 2, 3, ...) of eight SCLK signals have been detected, while the minimum valid length is of course 16 clocks for the 16 register bits of SPIDER-TLE7240SL. SCLK - Serial Clock: This input pin clocks the internal shift register. The serial input (SI) transfers data into the shift register on the falling edge of SCLK while the serial output (SO) shifts diagnostic information out on the rising edge of the serial clock. It is essential that the SCLK pin is in low state whenever chip select CS makes any transition. SI - Serial Input: Serial input data bits are shifted in at this pin, the most significant bit first. SI information is read on the falling edge of SCLK. Please refer to Section 8.3 for further information. SO - Serial Output: Data is shifted out serially at this pin, the most significant bit first. SO is in high impedance state until the CS pin goes to low state. New data will appear at the SO pin following the rising edge of SCLK. Please refer to Section 8.3 for further information.
8.2
Daisy Chain Capability
The SPI of SPIDER - TLE 7240SL provides daisy chain capability. In this configuration several devices are activated by the same CS signal MCS. The SI line of one device is connected with the SO line of another device (see Figure 10), which builds a chain. The ends of the chain are connected with the output and input of the master device, MO and MI respectively. The master device provides the master clock MCLK, which is connected to the SCLK line of each device in the chain.
device 1
MO SI SPI SO SI
device 2
SPI SO SI
device 3
SPI SO
CS
CS
SCLK
SCLK
CS
MI MCS MCLK
Figure 10
Daisy Chain Configuration
In the SPI block of each device, there is one shift register where one bit from SI line is shifted in each SCLK. The bit shifted out can be seen at SO. After 16 SCLK cycles, the data transfer for one SPIDER-TLE7240SL has been finished. In single chip configuration, the CS line must go high to make the device accept the transferred data. In daisy chain configuration the data shifted out at device #1 has been shifted in to device #2. When using multiple devices in daisy chain, the number of bits must be correspond with the number of register bits. Figure 11 is showing a example with 3 SPI devices, where #1 and #3 are 16 bit SPI and #2 has a 8 bit SPI. To get a successful transmission, there have to be 2* 16 bit + 1* 8bit shifted through the devices. After that, the MCS line must go high.
Data Sheet
20
SCLK
SPI_DasyChain .emf
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Serial Peripheral Interface (SPI)
MI MO MCS MCLK
time
SO device 3 SI device 3
SO device 2 SI device 2
SO device 1 SI device 1
SPI_DasyChain2.emf
Figure 11
Data Transfer in Daisy Chain Configuration
8.3
SPI Protocol
The SPI protocol of the SPIDER - TLE 7240SL provides two registers. The input register and the diagnosis register. The diagnosis register contains four pairs of diagnosis flags, the input register contains the input multiplexer configuration. After power-on reset, all register bits are set to 1 and the device is in idle mode. SI
15 IN8 14 13 IN7 12 11 IN6 10 9 IN5
Default: FFFFH
8 7 IN4 6 5 IN3 4 3 IN2 2 1 IN1 0
Field INn (n = 8 - 1)
Bits 15:14, 13:12, 11:10, 9:8, 7:6, 5:4, 3:2, 1:0
Type W
Description Input Register Channel n 00B Stand-by Mode: Fast channel switched off. Diagnosis flags are cleared. Diagnosis current is disabled. 01B Input Mode: Channel is switched according to signal at input pin. Diagnosis current is enabled in OFF-state. 10B ON Mode: Channel is switched on. 11B OFF Mode: Channel is switched off. Diagnosis current is enabled.
If all channels are in Standby Mode, the device is in power down status with minimum current consumption (sleep mode).
Data Sheet
21
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Serial Peripheral Interface (SPI)
SO
CS1) TER 15 OL8 14 D8 13 OL7 12 D7 11 OL6 10 D6 9 OL5 8 D5 7 OL4 6 D4 5 OL3 4 D3 3 OL2
Reset Value: 10000H
2 D2 1 OL1 0 D1
1) This bit is valid between CS hi -> lo and first SCLK lo -> hi transition. Field TER Bits CS Type Description R Transmission Error 0 Previous transmission was successful (modulo 8 clocks received, minimum 16 bit). 1 Previous transmission failed or first transmission after reset. Open Load Flag of channel n 0 Normal operation. 1 Open load has occurred in OFF state. Diagnosis Flag of channel n 0 Normal operation. 1 Over load or over temperature switch off has occurred in ON state.
OLn (n = 8 - 1) Dn (n = 8 - 1)
15,13, 11,9,7, 5, 3, 1 14,12, 10,8,6, 4, 2, 0
R
R
8.3.1
Timing Diagrams
tCS(lead) tCS(lag) tSCLK(P) tSCLK(H) tSCLK(L)
0.7 cc V 0.2 cc V
tCS(td)
0.7 cc V 0.2 cc V
CS
SCLK
tSI(su) tSI(h)
SI
tSO(en) tSO(v) tSO(dis)
0.7 cc V 0.2 cc V
SO
0.7 cc V 0.2 cc V SPI Timing .emf
Figure 12
Timing Diagram
Data Sheet
22
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Serial Peripheral Interface (SPI)
8.4
SPI Characteristics
Note: Characteristics show the deviation of parameter at given supply voltage and junction temperature. Typical values show the typical parameters expected from manufacturing. Electrical Characteristics: Serial Peripheral Interface (SPI) All voltages with respect to ground, positive current flowing into pin unless otherwise specified: VDD = 3.0 V to VDDA, VDDA= 4.5V to 5.5V, Tj = -40 C to +150 C Pos. Parameter Symbol Min. Input Characteristics (CS, SCLK, SI) 8.4.1 L level of pin CS SCLK SI H level of pin CS SCLK SI L-input pull-up current through CS 0
VCS(L) VSCLK(L) VSI(L)
Limit Values Typ. Max. 0.2* VDD
Unit
Conditions
8.4.2
0.4*
VCS(H) VSCLK(H) VSI(H) ICS(L)
VDD
VDD
8.4.3 8.4.4 8.4.5
3 3 3
17 15 12
40 40 80
A A A
VCS = 0 V
1)
H-input pull-up current through CS ICS(H) L-input pull-down current through pin SCLK SI H-input pull-down current through pin SCLK SI L level output voltage H level output voltage Output tristate leakage current Serial clock frequency Serial clock period Serial clock high time Serial clock low time Enable lead time (falling CS to rising SCLK) Enable lag time (falling SCLK to rising CS) Transfer delay time (rising CS to falling CS)
VCS = 0.4*VDD
1)
ISCLK(L) ISI(L)
VSCLK = 0.6 V VSI = 0.6 V
8.4.6
10
ISCLK(H) ISI(H) VSO(L) VSO(H) ISO(OFF) fSCLK tSCLK(P) tSCLK(H) tSCLK(L) tCS(lead) tCS(lag) tCS(td)
40
80
A
VSCLK = VDD VSI = VDD
Output Characteristics (SO) 8.4.7 8.4.8 8.4.9
Timings
0
0.6
V
ISO = -2 mA ISO = 1.5 mA
VDD 0.4 V -10 0 200 50 50 250 250 250 20
VDD
10 5 A MHz ns ns ns ns ns ns ns
VCS = VDD
1) 1) 1) 1) 1)
8.4.10 8.4.11 8.4.12 8.4.13 8.4.14 8.4.15 8.4.16 8.4.17
1)
1)2)
Data setup time (required time SI to tSI(su) falling SCLK)
1)
Data Sheet
23
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Serial Peripheral Interface (SPI) Electrical Characteristics: Serial Peripheral Interface (SPI) All voltages with respect to ground, positive current flowing into pin unless otherwise specified: VDD = 3.0 V to VDDA, VDDA= 4.5V to 5.5V, Tj = -40 C to +150 C Pos. 8.4.18 8.4.19 8.4.20 Parameter Output enable time (falling CS to SO valid) Output disable time (rising CS to SO tri-state) Output data valid time with capacitive load Symbol Min.
tSO(en) tSO(dis) tSO(v)
Limit Values Typ. Max. 200 200 100
Unit ns ns ns
Conditions
CL = 50 pF 1) CL = 50 pF 1) CL = 50 pF 1)
1) Not subject to production test, specified by design. 2) Diagnosis flag update needs the time specified in Chapter 7.1 to get valid information
Data Sheet
24
Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Application Information
9
Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. Figure 13 shows a simplified application circuit. VDD and VDDA need to be externally reverse polarity protected.
Vbat +5V
100nF
VDD
VDDA
OUT1 OUT2 KL15 Relay KL50 Relay Wiper Relay Horn Relay
Limp Home Circuit
Possibility to control OUT 14 via Inputs IN1-4 during malfunction of C
IN1 IN2 IN3 IN4
OUT3 OUT4 OUT5 OUT6 OUT7
VCC GPIO RST
low-side gate control
OUT8
C XC2000 VDD CS SPI SCLK SO SI GND GND SPI
GND
LHI
Limp Home Signal
(eg WD out of SBC TLE 8264 G Hermes)
TLE7240SL.emf
Figure 13
Application Diagram
Note: This is a very simplified example of an application circuit. The function must be verified in the real application.
For further information you may contact http://www.infineon.com/spider Data Sheet 25 Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Package Outlines
10
Package Outlines
0.35 x 45
0.175 0.07
3.9 0.11)
1.75 MAX. (1.47)
C
0.19 +0.06
8 MAX.
8 MAX. 0...8
0.65 0.25 0.05 2)
0...8
B
0.1 B Seating Plane
0.64 0.25
6 0.2 0.2
8 MAX.
M
0.17 M C A B 24x
C
24
13
1
12
8.65 0.11) Index Marking
A
1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Does not include dambar protrusion of 0.13 max.
Figure 14 PG-SSOP-24-7 (Plastic Dual Small Outline Package)
PG-SSOP-24-5, -6
Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pbfree finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). Please specify the package needed (e.g. green package) when placing an order
You can find all of our packages, sorts of packing and others in our Infineon Internet Page "Products": http://www.infineon.com/products. Data Sheet 26
Dimensions in mm Rev. 1.1, 2009-04-15
SPI Driver for Enhanced Relay Control SPIDER - TLE 7240SL
Revision History
11
Version Rev. 1.1 Rev. 1.0
Revision History
Date 2009-04-15 2009-04-02 Changes fixed a typo in Figure3, Figure4,Figure7 and Chapter 8.3 IN and OUT channel numbering starts now everywhere with 1 released Datasheet
Data Sheet
27
Rev. 1.1, 2009-04-15
Edition 2009-04-15 Published by Infineon Technologies AG 81726 Munich, Germany (c) 2009 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

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