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MIC4467/4468/4469
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MIC4467/4468/4469
Quad 1.2A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS
General Description
The MIC4467/8/9 family of 4-output CMOS buffer/drivers is an expansion from the earlier single- and dual-output drivers, to which they are functionally closely related. Because package pin count permitted it, each driver has been equipped with a 2-input logic gate for added flexibility. Placing four highpower drivers in a single package also improves system reliability and reduces total system cost. In some applications, one of these drivers can replace not only two packages of single-input drivers, but some of the associated logic as well. Although primarily intended for driving power MOSFETs, and similar highly capacitive loads, these drivers are equally well suited to driving any other load (capacitive, resistive, or inductive), which requires a high-efficiency, low-impedance driver capable of high peak currents, rail-to-rail voltage swings, and fast switching times. For example, heavily loaded clock lines, coaxial cables, and piezoelectric transducers can all be
Features
* * * * * * * * * * Built using reliable, low power CMOS processes Latchproof. Withstands 500mA Inductive Kickback 3 Input Logic Choices Symmetrical Rise and Fall Times .......................... 25ns Short, Equal Delay Times ...................................... 75ns High Peak Output Current ...................................... 1.2A Wide Operating Range .................................. 4.5 to 18V Low Equivalent Input Capacitance (typ) .................. 6pF Inputs = Logic 1 for Any Input From 2.4V to VS ESD Protected
Applications
* * * * * * * General-Purpose CMOS Logic Buffer Driving All 4 MOSFETs in an H-Bridge Direct Small-Motor Driver Relay or Peripheral Drivers Dual Differential Output Power Drivers CCD Driver Pin-Switching Network Driver
Logic Diagrams
MIC4467
VS
14
MIC4468
VS
14
MIC4469
VS
14
13
1A 1B 2A 2B 3A 3B 4A 4B
1 2 3 4 5 6 8 9 7
13
1Y 2Y 3Y 4Y
1A 1B 2A 2B 3A 3B 4A 4B
1 2 3 4 5 6 8 9 7
1Y 2Y 3Y 4Y
1A 1B 2A 2B 3A 3B 4A 4B
1 2 3 4 5 6 8 9 7
13
1Y 2Y 3Y 4Y
12
12
12
11
11
11
10
10
10
GND
GND
GND
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driven easily with MIC446X series drivers. The only limitation on loading is that total power dissipation in the IC must be kept within the power dissipation limits of the package. The MIC446X series drivers are built using a BCD process. They will not latch under any conditions within their power and
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voltage ratings. They are not subject to damage when up to 5V of noise spiking (either polarity) occurs on the ground line. They can accept up to half an amp of inductive kickback current (either polarity) into their outputs without damage or logic upset.
Ordering Information
Part No. MIC44xxCN* MIC44xxCWM* MIC44xxBN* MIC44xxBWM* Package 14-Pin Plastic DIP 16-Pin Wide SOIC 14-Pin Plastic DIP 16-Pin Wide SOIC Temp. Range 0 to +70C 0 to +70C -40 to +85C -40 to +85C
Truth Table
Inputs Part No. MIC4467 (Each Driver) MIC4468 (Each Driver) MIC4469 (Each Driver) A L X H H L X L X H B X L H H X L X H L Output Y H H L H L L L L H
* xx identifies input logic: 67 -- NAND
68 -- AND 69 -- AND with 1 inverting input
5
Pin Configurations
14-Pin DIP (N)
1A 1B 2A 2B 2B 4 3A 5 3B 6 GND 7 11 3Y 10 4Y 9 8 4B 4A 3A 3B GND GND
16-Pin Wide SOIC (WM)
1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VS VS 1Y 2Y 3Y 4Y 4B 4A
1A 1 1B 2 2A 3
14 VS 13 1Y 12 2Y
TOP VIEW
TOP VIEW
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Block Diagrams
VS MIC4467 5V Regulator IN A Level Shifter IN B Y OUT
GND Functional Diagram for One Driver (Four Drivers per Package-Ground Unused Inputs)
VS MIC4468 5V Regulator IN A Level Shifter IN B Y OUT
GND Functional Diagram for One Driver (Four Drivers per Package-Ground Unused Inputs)
VS MIC4469 5V Regulator IN A Level Shifter IN B Y OUT
GND Functional Diagram for One Driver (Four Drivers per Package-Ground Unused Inputs)
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Absolute Maximum Ratings (Notes 1 and 2)
Supply Voltage 22V Input Voltage (GND - 5V) to (VS + 0.3V) Maximum Chip Temperature Operating 150C Storage -65 to +150C Maximum Load Temperature (10 sec, for soldering) 300C Operating Ambient Temperature C Version 0 to +70C B Version -40 to +85C Power Dissipation N Package (14-Pin Plastic DIP) WM Package (16-Pin Wide SOIC) Package Thermal Resistance N Package (14-Pin Plastic DIP) JA WM Package (16-Pin Wide SOIC) JA 1.5W 1W
80C/W 120C/W
Electrical Characteristics:
Symbol INPUT VIH VIL IIN OUTPUT VOH VOL RO IPK I High Output Voltage Low Output Voltage Output Resistance Peak Output Current Logic 1 Input Voltage Logic 0 Input Voltage Input Current Parameter
Measured at TA = 25C with 4.5V VS 18V unless otherwise specified.
Conditions Min Typ Max Units
2.4
1.3 1.2 0.8 1
V V A
0 VIN VS
-1
ILOAD = 10mA ILOAD = 10mA IOUT = 10mA, VS = 18V
VS-0.15 0.15 5 1.2 >500 15
V V A mA
5
Latch-Up Protection Withstand Reverse Current
SWITCHING TIME tR tF tD1 tD2 Rise Time Fall Time Delay Time Delay Time Test Figure 1 Test Figure 1 Test Figure 1 Test Figure 1 14 13 30 45 25 25 75 75 ns ns ns ns
POWER SUPPLY IS Power Supply Current Supply 0.2 4 mA
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Electrical Characteristics:
Measured over operating temperature range with 4.5V VS 18V unless otherwise specified.
Symbol INPUT VIH VIL IIN OUTPUT VOH VOL RO IPK I High Output Voltage Low Output Voltage Output Resistance Peak Output Current Latch-Up Protection Withstand Reverse Current 500 ILOAD = 10 mA ILOAD = 10 mA IOUT = 10 mA, VS = 18V 7 1.2 VS-0.3 0.3 30 V V A mA Logic 1 Input Voltage Logic 0 Input Voltage Input Current 0 VIN VS -1 2.4 1.4 1.0 0.8 1 V V A Parameter Conditions Min Typ Max Units
SWITCHING TIME tR tF tD1 tD2 Rise Time Fall Time Delay Time Delay Time Test Figure 1 Test Figure 1 Test Figure 1 Test Figure 1 17 16 35 55 50 50 100 100 ns ns ns ns
POWER SUPPLY IS Power Supply Current Supply 0.4 8 mA
NOTE 1: Functional operation above the absolute maximum stress ratings is not implied. NOTE 2: Static sensitive device. Store only in conductive containers. Handling personnel and equipment should be grounded to prevent static damage.
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Typical Characteristics
Rise and Fall Time vs. Supply Voltage
70 60 50 Time (ns) Time (ns) 40 30 20 10 0 0 5 10 15 SUPPLY VOLTAGE (V) 20 TF TR CL = 1000pF TA = 25C 35 30 25 20 15 10 5 0 0 5 10 15 SUPPLY VOLTAGE (V) 20 10 -75 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) TD1
Delay Time vs. Supply Voltage
CL = 1000pF TA = 25C TD2 Time (ns) 40
Rise and Fall Time vs. Temperature
CL = 1000pF VS = 18V 30 TR 20 TF
Delay Time vs. Temperature
35 TD2 SUPPLY CURRENT (mA) 30 25 Time (ns) 20 15 10 5 0 -75 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) TD1 CL = 1000pF VS = 18V 80 70 60
Supply Current vs. Capacitive Load
T A = 25C VS = 18V 400kHz 1k
Rise and Fall Time vs. Capacitive Load
T A = 25C VS = 18V 100 Time (ns) TR
50 40 30 20 10 0 10 100 1000 10000 CAPACITIVE LOAD (pF) 200 kHz 20kHz
TF 10
5
10 100 1000 10000 CAPACITIVE LOAD (pF)
1
Supply Current vs. Frequency
30 SUPPLY CURRENT (mA) TA = 25C CL = 1000pF 20 10 V VS = 18V .96 | VS - V | (V) OUT .72 .48 1.20
High Output vs. Current
1.20 TA = 25C VC = 5V OUTPUT VOLTAGE (V) .96 .72 .48
Low Output vs. Current
TA = 25C VS = 5V
10 V
10 V
10 5V
15 V .24 .00
15 V .24 .00
0 1 10 100 FREQUENCY (kHz) 1000
0 10 20 30 40 50 60 70 80 90 100 CURRENT SOURCED (mA)
0 10 20 30 40 50 60 70 80 90 100 CURRENT SUNK (mA)
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2.5
SUPPLY CURRENT (mA)
Quiescent Power Supply Current vs. Supply Voltage
SUPPLY CURRENT (A)
Quiescent Power Supply
400 Current vs. Supply Voltage 300 200 150 100 50 0 NO LOAD BOTH INPUTS LOGIC "0" TA = 25C
2.0 1.5 1.0 0.5 0 0 5 10 15 20 SUPPLY VOLTAGE (V) NO LOAD BOTH INPUTS LOGIC "1" TA = 25C
0
5 10 15 SUPPLY VOLTAGE (V)
20
Test Figure 1
INVERTING INPUT
VS
+5V V INPUT 1 F FILM
0.1 F CERAMIC
90% 10%
V OUTPUT IN1 IN1 IN2 IN2 IN3 IN3 IN4 IN4
tD1
tF
tD2
tR
VOUT 470 pF
18V 0V
90% 10% 10%
90%
NON-INVERTING INPUT
+5V V INPUT 10% 18V V OUTPUT 0V 90% tD1 10% tR 90% tD2 10% 90%
tF
Package Power Dissipation
1500 1250 1000
PD (mW) 14-PIN PDIP SLOPE = -12 mW/C
Quad Driver Drives H Bridge to Control Motor Speed and Direction
+5V TO +15V
MIC4467
CW
750 500
16-PIN WIDE SOIC SLOPE = -8 mW/C
CCW DC BRUSH MOTOR
PWM SPEED
250 0 25
50 75 100 125 AMBIENT TEMPERATURE (C)
150
GND
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