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Ordering number : ENA0662
LB11620T
Overview
Monolithic Digital IC
Brushless Motor Driver
The LB11620T is a direct PWM drive predriver IC that is optimal for three-phase power brushless motors. A motor driver circuit with the desired output capability (voltage and current) can be implemented by adding discrete transistors or other power devices to the outputs of this IC. Since the LB11620T is provided in a miniature package, it is also appropriate for use with miniature motors as well.
Features
* Three-phase bipolar drive * Direct PWM drive (input of either a control voltage or a variable-duty PWM signal) * Built-in forward/reverse switching circuit * Full complement of protection circuits (current limiter, low-voltage, and automatic recovery lock (motor constraint) protection circuits) * Selectable Hall sensor signal pulse output
Specifications
Maximum Ratings at Ta = 25C
Parameter Supply voltage 1 Output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max IO max Pd max Topr Tstg VCC pin UL, VL, WL, UH, VH, WH pins *Mounted on a circuit board. Conditions Ratings 18 30 0.8 -20 to +100 -55 to +150 Unit V mA W C C
* Mounted on a circuit board : 114.3mmx76.1mmx1.6mm, glass epoxy board.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment.
22807 MS PC 20061227-S00002 No.A0662-1/11
LB11620T
Recommended Operating Ranges at Ta = 25C
Parameter Supply voltage range 1-1 Supply voltage range 1-2 Output current 5 V constant voltage output current HP pin voltage HP pin output current RD pin voltage RD pin output current Symbol VCC1-1 VCC1-2 IO IREG VHP IHP VRD IRD VCC pin VCC pin, with VCC shorted to VREG UL, VL, WL, UH, VH, WH pins Conditions Ratings 8 to 17 4.5 to 5.5 25 -30 0 to 17 0 to 15 0 to 17 0 to 15 Unit V V mA mA V mA V mA
Electrical Characteristics at Ta = 25C, VCC = 12V
Parameter Supply voltage 1 5V constant voltage output (VREG pin) Output voltage Line regulation Load regulation Temperature coefficient VREG VREG1 VREG2 VREG3 VCC = 8 to 17V IO = -5 to -20mA Design target 4.7 5.0 40 10 0 5.3 100 30 V mV mV mV/C Symbol ICC1 Conditions min Ratings typ 12 max 16 mA Unit
Low-voltage protection circuit (VREG pin) Operating voltage Clear voltage Hysteresis Output Block Output voltage 1-1 Output voltage 1-2 Output voltage 2 Output leakage current Hall Amplifier Block Input bias current Common-mode input voltage range 1 Common-mode input voltage range 2 Hall input sensitivity Hysteresis Input voltage low high Input voltage high low PWM Oscillator (PWM pin) High-level output voltage Low-level output voltage External capacitor charge current Oscillator frequency Amplitude VOH (PWM) VOL (PWM) ICHG f (PWM) V (PWM) VPWM = 2.1V C = 2000pF 1.4 2.75 1.2 -120 3.0 1.35 -90 22 1.6 1.9 3.25 1.5 -65 V V A kHz Vp-p VIN (HA) VSLH (HA) VSHL (HA) IHB (HA) VICM1 VICM2 When a Hall effect sensor is used For single-sided input bias (Hall IC application) 80 15 5 -20 24 12 -12 40 20 -5 mVp-p mV mV mV -2 0.5 0 -0.5 VCC-2.0 VCC A V V VOUT1-1 VOUT1-2 VOUT2 IOleak Low level IO = 400A Low level IO = 10mA High level IO = -20mA VCC-1.1 0.2 0.9 VCC-0.9 10 0.5 1.2 V V V A VSDL VSDH VSD 3.5 3.95 0.3 3.7 4.15 0.45 3.9 4.35 0.6 V V V
Continued on next page
No.A0662-2/11
LB11620T
Continued from preceding page. Parameter EI+ pin Input bias current Common-mode input voltage range Input voltage 1 Input voltage 2 Input voltage 1L Input voltage 2L Input voltage 1H Input voltage 2H HP pin Output saturation voltage Output leakage current CSD oscillator (CSD pin) High-level output voltage Low-level output voltage External capacitor charge current External capacitor discharge current Charge/discharge current ratio RD pin Low-level output voltage Output leakage current Current limiter circuit (RF pin) Limiter voltage PWMIN pin Input frequency High-level input voltage Low-level input voltage Input open voltage Hysteresis High-level input current Low-level input current F/R pin High-level input voltage Low-level input voltage Input open voltage Hysteresis High-level input current Low-level input current N1 pin High-level input voltage Low-level input voltage Input open voltage High-level input current Low-level input current VIH (N1) VIL (N1) VIO (N1) IIH (N1) IIL (N1) VN1 = VREG VN1 = 0V 2.0 0 VREG-0.5 -10 -130 0 -100 VREG 1.0 VREG 10 V V V A A VIH (FR) VIL (FR) VIO (FR) VIS (FR) IIH (FR) IIL (FR) 2.0 0 VREG-0.5 0.2 -10 -130 0.25 0 -90 VREG 1.0 VREG 0.4 10 V V V V A A f (PI) VIH (PI) VIL (PI) VIO (PI) VIS (PI) IIH (PI) IIL (PI) VPWMIN = VREG VPWMIN = 0V 2.0 0 VREG-0.5 0.2 -10 -130 0.25 0 -90 50 VREG 1.0 VREG 0.4 10 kHz V V V V A A VRF RF-GND 0.225 0.25 0.275 V VRDL IL (RD) IO = 10mA VO = 18V 0.2 0.5 10 V A VOH (CSD) VOL (CSD) ICHG1 ICHG2 RCSD VCSD = 2V VCSD = 2V Charge current /discharge current 2.7 0.7 -3.15 0.1 15 3.0 1.0 -2.5 0.14 18 3.3 1.3 -1.85 0.18 21 V V A A Times VHPL IHPleak IO = 10mA VO = 18V 0.2 0.5 10 V A IB (CTL) VICM VCTL1 VCTL2 VCTL1L VCTL2L VCTL1H VCTL2H Output duty 100% Output duty 0% Design target value. When VREG = 4.7V, 100% Design target value. When VREG = 4.7V, 0% Design target value. When VREG = 5.3V, 100% Design target value. When VREG = 5.3V, 0% 1.44 V 3.18 V 1.29 V -1 0 3.0 1.35 2.82 1 VREG-1.7 A V V V V Symbol Conditions min Ratings typ max Unit
No.A0662-3/11
LB11620T
Package Dimensions
unit : mm (typ) 3260A
1.2
Pd max - Ta
Specified circuit board : 114.3x76.1x1.6mm3 glass epoxy board
6.5 24 13
Allowable power dissipation, Pd max - W
0.8
Mounted on a circuit board
4.4
6.4
0.5
1 0.5 (0.5) 0.22
12
0.15
0.4 0.32
(1.0)
1.2max
0 - 20
0
20
40
60
80
100
120
0.08
Ambient temperature, Ta - C
SANYO : TSSOP24(225mil)
Pin Assignment
VCC 24 VREG 23 EI+ 22 N1 21 HP 20 F/R 19 PWMIN CSD 18 17 RD 16 PWM 15 IN3+ 14 IN313
LB11620T
1 GND
2 RF
3 WH
4 WL
5 VH
6 VL
7 UH
8 UL
9 IN1-
10 IN1+
11 IN2-
12 IN2+
* Three-Phase Logic Truth Table (IN = "H" indicates the state where IN+ > IN-)
F/R = "L" IN1 1 2 3 4 5 6 H H H L L L IN2 L L H H H L IN3 H L L L H H IN1 L L L H H H F/R="H" IN2 H H L L L H IN3 L H H H L L PWM VH WH WH UH UH VH UL UL VL VL WL WL Output
* PWMIN pin
Input state High or open Low State Output off Output on
If the PWM pin is not used, the input must be held at the low level.
* N1 pin
Input state High or open Low HP output Three Hall sensor synthesized output Single Hall sensor output
No.A0662-4/11
LB11620T
Pin Functions
Pin No. 1 2 Pin GND RF Ground Output current detection. The current detection resistor (Rf) voltage is sensed by the RF pin to implement current detection. The maximum output current is set by RF to be IOUT = 0.25/Rf. 7 5 3 8 6 4 10, 9 12, 11 14, 13 15 16 UH VH WH UL VL WL IN1+, IN1IN2+, IN2IN3+, IN3PWM RD Outputs These are push-pull outputs. Hall sensor inputs from each motor phase. The logic high state indicates that IN+ > IN-. If inputs are provided by a Hall effect sensor IC, the common-mode input range is expanded by biasing either the + or - input. Functions as both the PWM oscillator frequency setting pin and the initial reset pulse setting pin. Connect a capacitor between this pin and ground. Lock (motor constrained) detection state output. This output is turned on when the motor is turning and off when the lock protection function detects that the motor has been stopped. This is an open collector output. 17 CSD Sets the operating time for the lock protection circuit. Connect a capacitor between this pin and ground. Connect this pin to ground if the lock protection function is not used. 18 PWMIN PWM pulse signal input. The output goes to the drive state when this pin is low, and to the off state when this pin is high or open. To use this pin for control, a CTL amplifier input such that the TOC pin voltage goes to the 100% duty state must be provided. 19 20 21 22 23 24 F/R HP N1 EI+ VREG VCC Forward/reverse control input Hall signal output (HP output). This provides either a single Hall sensor output or a synthesized 3-sensor output. Hall signal output (HP output) selection CTL amplifier + (noninverting) input. The PWMIN pin must be held at the low level to use this input for motor control 5V regulator output (Used as the control circuit power supply. A low-voltage protection circuit is built in.) Connect a capacitor between this pin and ground for stabilization. Power supply. Connect a capacitor between this pin and ground to prevent noise and other disturbances from affecting this IC. Outputs (PWM outputs). These are push-pull outputs. Description
No.A0662-5/11
LB11620T
Hall Sensor Signal Input/Output Timing Chart
F/R = " L " IN1 IN2 IN3 UH VH WH UL VL WL
F/R = " H " IN1 IN2 IN3 UH VH WH UL VL WL
Sections shown in gray are PWM output periods.
No.A0662-6/11
VREG 5V + + VM RD + CSD
VREG
RD
CSD OSC LVSD VREG
CTL
EI+
+
Bipolar transistor drive (high side PWM) using a 5V power supply
PWM VCC
PWM OSC
COMP
PWMN CONTROL LOGIC UH UL PRI DRIVER HALL LOGIC VH VL HP LOGIC WH WL
Block Diagram and Application Example 1
LB11620T
PWM IN
VREG
HP
F/R
N1
HALL HYS AMP
CURR LIM
RF
F/R
IN1
IN1+ IN1-
IN2+ IN2-
IN3+ IN3-
GND
No.A0662-7/11
VCC
VREG + RD CSD VM(12V) + RD VREG TR CSD OSC LVSD VREG
Application Example 2
-
EI+
+
54 MOS transistor drive (low side PWM) using a 12V single-voltage power supply
PWM VCC
PWM OSC
COMP
PWMN CONTROL LOGIC UH UL PRI DRIVER HALL LOGIC VH VL HP LOGIC WH WL
LB11620T
PWM IN
TR
VREG
HP
TR
F/R
N1
HALL HYS AMP
CURR LIM
RF
F/R
IN1
IN1+ IN1-
IN2+ IN2-
IN3+ IN3-
GND
No.A0662-8/11
VCC
VREG + RD VCC(12V) + RD VREG CSD OSC LVSD VREG VM(24V) + CSD
Application Example 3
-
EI+
+
MOS transistor drive (low side PWM) using a VCC = 12V, VM = 24V power supply system
PWM VCC
PWM OSC
COMP
PWMN CONTROL LOGIC UH UL PRI DRIVER HALL LOGIC VH VL HP LOGIC WH WL
LB11620T
PWM IN
VREG
HP
F/R
N1
HALL HYS AMP
CURR LIM
RF
F/R
IN1
IN1+ IN1-
IN2+ IN2-
IN3+ IN3-
GND
No.A0662-9/11
VCC
VREG + RD CSD VM(24V)
+ RD VREG CSD OSC LVSD VREG
Application Example 4
-
EI+
+
MOS transistor drive (low side PWM) using a 24V single-voltage power supply
PWM VCC
PWM OSC
COMP
PWMN CONTROL LOGIC UH UL PRI DRIVER HALL LOGIC VH VL HP LOGIC WH WL
LB11620T
PWM IN
VREG
HP
F/R
N1
HALL HYS AMP
CURR LIM
RF
F/R
IN1
IN1+ IN1-
IN2+ IN2-
IN3+ IN3-
GND
No.A0662-10/11
VCC
LB11620T
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This catalog provides information as of February, 2007. Specifications and information herein are subject to change without notice. PS No.A0662-11/11

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