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Rev: 3.3 Date: 13 Dec 2000
Freescale Semiconductor, Inc.
MC33186
Automotive H-Bridge Driver
* Operating Supply Voltage 5V to 28V * Overvoltage Protection against Transients up to 40V at Vbat * RDSon = 150m for each Output Transistor at 25C * Continous DC Load Current 5A (TC < 100C) * Output Current Limitation at typ 6,5A +/- 20% * Short-Circuit Shutdown for Output Currents over 8A * Logic Inputs TTL/CMOS Compatible * Operating Frequency up to 20 kHz * Overtemperature Protection * Short-Circuit Protection * Undervoltage Disable Function * Diagnostic Output * 2 Disable Inputs * Coding Input for Alternative Functions * HSOP20 Power Package * Stable Operation with an External Capacitance of maximum 47F at Vbat
DH1 SUFFIX
H-BRIDGE DRIVER SEMICONDUCTOR TECHNICAL DATA
Freescale Semiconductor, Inc...
PLASTIC PACKAGE CASE 751A-03 HSOP-20
PIN CONNECTIONS
AGND SF IN1
1 2 3 4 5 6 7 8 9
20 19 18 17 16 15 14 13 12 11
NC IN2 DI1 CP Vbat OUT2 OUT2 DI2 PGND PGND
Simplified Block Diagram
Cp Internal 5V Charge-Pump Vbat Vbat Vbat
Vbat Vbat OUT1 OUT1 COD
SF
Under-Voltage
PGND
Overcurrent High-Side IN1 IN2 Logic DI1 DI2
Over temperature Gate Control: 3-4 Gate Control: 1-2
PGND 10
Metal slug is connected to power ground
OUT1 OUT2
(Top View)
Overcurrent Low-Side
COD
Current limitation
ORDERING INFORMATION
GROUND
Device MC33186DH1R2 Temperature Range -40C to +125C Package HSOP20
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MAXIMUM RATINGS
Ratings ELECTRICAL RATINGS
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Symbol Min Typ Max Unit
MC33186
Supply Voltage - Static Destruction Proof - Dynamic Destruction Proof t < 0,5s Logic Inputs (IN1, IN2, DI1, DI2, CODE) Output Status - Flag SF
THERMAL RATINGS
V Vbat Vbat U USF -1 -2 - 0.5 - 0.5 28 40 7 7 V V
Junction Temperature Storage Temperature Ambient Temperature Thermal Resistance (with power applied on 2 power MOS)
Tj Ts Ta RthJC
- 40 - 55 - 40
+150 +125 +125 +1,5
C C C K/W
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ELECTRICAL CHARACTERISTICS.Tj : from -40C to +150 C, Vbat from 5 V to 28 V, unless otherwise note. Typical values reflect approximate mean
at 25C, nominal VCC, at time of device characterization.
Characteristics RANGE OF VALIDITY
Symbol
Min
Typ
Max
Unit
Vbat Tj
POWER SUPPLY
5
-40
28 150
V
C
Operating Range : - Static - Dynamic ( t < 500ms ) Stanby current - f = 0 to 10KHz ; IOUT = 0A Vbat-undervoltage switch-off (without load) - Switch-off Voltage - Switch-on Voltage - Hysteresis
CHARGE-PUMP SUPPLY
Vbat Vbat I Vbat
5
28 40 35
V V mA
4.15 4.5 150
4.4 4.75
4.65 5
V V mV
- Vbat = 4.15 V - Vbat < 40V
LOGIC INPUTS
Vcp - Vbat Vcp - Vbat
3.35 20
V V
Input High Input Low Input Hysteresis Input Current (IN1, IN2, DI1) - UIN= 0V Input Current (DI2,COD) - UDI2= 5V
VinH VinL U I IDI2
3.4 1.4 0.7 - 200 1 - 80 25 100
V V V A A
MC33186
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ELECTRICAL CHARACTERISTICS.Tj : from -40C to +150 C, Vbat from 5 V to 28 V, unless otherwise note. Typical values reflect approximate mean
at 25C, nominal VCC, at time of device characterization.
MC33186
Characteristics POWER OUTPUTS : OUT1, OUT2
Symbol
Min
Typ
Max
Unit
Switch on resistances : ROUT - Vbat ; ROUT - GND - Vbat =5 to 28V ; Ccp = 0 to 33nF Current Limitation Controlled Peak Value Switch-off Current Switch-off Time Blanking Time High Side Overcurrent Detection Low Side Overcurrent Detection (4) Leackage Current - Output Stage Switched off Free-Wheeling Diode Forward Voltage - IOU = 3A Free-Wheeling Diode Reverse Recovery Time - Switch-off Temperature - Hysteresis
OUTPUT STATUS FLAG (Open drain output)
300
m
(IOUT) max ta tb IOCHS IOCLS
5.2 15 12 11 8
6.5 20.5 16.5
7.8 26 21
A s s A A
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100 UD trr 100 160 20 190 30 2
A V ns C C
Output High (SF not set) USF = 5V Output Low (SF set) ISF = 300 A
TIMING
ISF VSF
10 1
A V
PWM frequency - CCP = 33nF Maximum Switching Frequency During Current Limitation - Vbat = 6....28V.....CCP = 33nF Output ON Delay IN1 .....>OUT1 or IN2.....>OUT2 Output OFF Delay IN1 .....>OUT1 or IN2.....>OUT2 Output Switching Time - CCP = 0 to 33nF OUTiH .....OUTiL, OUTiL .....OUTiH, IOUT= 3A Disable Delay Time DIi .....OUTi Turn off in Case of Over-current or Over-temperature Power On Delay Time (Ccp = 33nF)
f
10
KHz
f tdon tdoff
20 15 15
KHz s s
tr , tf
2
5
s
tddis 4 1
8
s s
5
ms
3
MC33186
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TRUH TABLE Device State DI1 (3) 1-Forward 2-Reverse 3-Free Wheeling Low 4-Free Wheeling High 5-Disable 1 6-Disable 2 7-IN1 Disconnected 8-IN2 Disconnected 9-DI1 Disconnected 10-DI2 Disconnected 11-Current Limit.active 12-Undervoltage (1) 13-Over-temperature (2) 14-Over-current (2)
L L L L H X L L Z X L X X X Input Conditions Status Outputs
MC33186
DI2 (3)
H H H H X L H H X Z H X X X
IN1
H L L H X X Z X X X X X X X
IN2
L H L H X X X Z X X X X X X
SF (5)
H H H H L L H H L L H L L L
SF (6)
H H H H H H H H H H H L L L
OU1
H L L H Z Z H X Z Z Z Z Z Z
OU2
L H L H Z Z X H Z Z Z Z Z Z
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NOTE : (1) In case of undervoltage, tristate and status-flag are reset automatically. (2) Whenever over-current or over-temperature is detected, the fault is stored (i.e.status-flag remains low). The tristate conditions and the status-flag are reset via DI1 (IN1) or DI2 (IN2). Pinnames in brackets refer to coding pin (COD=Vcc). (3) If COD = Vcc then DI1 and DI2 are not active. (4) In case of over-current, the time when the current is greater than 7,8A is lower than 30s, with a maximum frequency of 1kHz. (5) COD=nc or GND (6) COD = VCC
L = Low H = High X = High or Low Z = High impedance (all output stage transistors are switched off ).
MC33186
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Freescale Semiconductor, Inc. PINS FUNCTION DESCRIPTION
Pin
9, 10, 11, 12 Metal slug
MC33186
Name
GND Power Ground
Description
1 2
GND Output Statusflag (SF) Inputs IN1,IN2 DI1,DI2, COD COD
Analog ground Open drain output, active low. Is set according to the truth table . Voltage controlled inputs with hysteresis
3,13 18, 19 8
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When not connected or connected to GND, a stored failure will be reset by change of the voltage-level on DI1 or DI2. When connected to Vcc, the disable pin DI1 and DI2 are inactive. A stored failure will be reset by change of the voltage-level on IN1 or IN2 . H-Bridge outputs with integrated free-wheeling diodes. The pins 4 and 5 are internally connected. These pins supply the left high side and the analogue/logic part of the device. The pin 16 supplies the right high side and the charge pump. The pins 4, 5 and 16 should be connected together on the printed circuit board with connections as short as possible. Supervision and protection functions a) Supply voltage supervision The supply voltage is supervised . If it is below its specific threshold , the power stages are switched in tristate and the status flag is switched low. If the supply voltage is over the specific theshold again , the power stage switches independently into normal operation, according to the input pins and the status flag is reset . b) Thermal supervision In case of over-temperature the power stages are switched in tristate independent of the inputs signals and the status flag is switched low. If the level changes from high to low on DI1 (IN1) or low to high on DI2 ( IN2 ), the output stage switches on again if the temperature is below the specified limit .The statusflag is reset to high level (Pinnames in brackets refer to coding pin=Vcc). c) Supervision of overcurrent If overcurrent is detected the power stages are independent of the inputs signals switched in tristate and the status flag is set . If the level changes from high to low on DI1 ( IN1 ) or low to high on DI2 ( IN2 ) the output stage switches on again and the status flag is reset to high level (Pinnames in brackets refer to coding pin = Vcc). The output stage switches into the mode defined by the inputs pins provided the temperature is below the specified limits . d) Current limiting The maximum current which can flow under normal operating conditions is limited to Imax = 6,5A +/- 20% .When the maximum current value is reached, the output stages are switched tristate for a fixed time. According to the time constant the current decreases until the next switch on occurs. See page 8 for schematics.
6, 7, 14, 15 4, 5, 16
OUT1 , OUT2 Vbat
MC33186
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Figure 1. Typical Application
MC33186
10k Ccp=33nF VBat 47F
Voltage Regulator
VCC
Power Ground SF IN1 CP Vbat
Microcontroller
IN2 OUT1 Di1 OUT2 Di2
M
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COD
GND
Power Ground
Figure 2. Output delay time INn
50% 50%
tdon
tdoff 90% 10%
OUn
Figure 3. Disable Delay Time DIn
50%
tddis
OUn
10%
Z
MC33186
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Figure 4. Output Switching Time
90% 90%
MC33186
OUn
10% tf
10% tr
Figure 5. Current Limitation Loadcurrent
> 8A typ 6,5A
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Overcurrent
A
Control signal
Status Flag
Detail A
ta 6,5A
overcurrent detection tb
ta = switch-off time in current limitation tb = current limitation blanking time
MC33186
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Figure 6 - Standby Current versus Temperature
13,5 13 12,5 IVBAT (mA) 12 11,5 11 10,5 10 9,5 9 -50 -25 0 25 50 75 T, TEMPERATURE (C) 100 125 VBAT=12V VBAT(V)
MC33186
Figure 7. VBAT Undervoltage versus Temperature
5,00 4,90 4,80 4,70 4,60 4,50 4,40 4,30 4,20 -50 -25 0 25 50 75 T, TEMPERATURE (C) 100 125 Switch off Voltage Switch on Voltage
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Figure 8 - Low Threshold Input Voltage versus
Temperature 1,89 1,88 1,87 1,86 1,85 1,84 1,83 1,82 1,81 -50 -25 0 25 50 75 T, TEMPERATURE (C) 100 125 VinH (V) VinL (V)
Figure 9 - High Threshold Input Voltage versus
Temperature 2,83 2,82 2,81 2,80 2,79 2,78 2,77 2,76 2,75 -50 -25 0 25 50 75 T, TEMPERATURE (C) 100 125
Figure 10 - Vcp versus Battery Voltage
45 40 35 30 Vcp (V) 25 20 15 10 5 0 0 5 10 15 20 25 BATTERY VOLTAGE (V) 30 35 Tambient=25C without Ccp RDSon (m) 200 190 180 170 160 150 140 130 120
Figure 11. RDSON versus Temperature
VBAT=5V without Ccp
110 -50
-25
0
25
50
75
100
125
T, TEMPERATURE (C)
MC33186
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Figure 12. Switch off current versus Temperature
7,20 7,10 7,00 IOUT max (A) IOCHS (A) 6,90 6,80 6,70 6,60 6,50 6,40 6,30 -50 -25 0 25 50 75 100 125 17,50 17,00 16,50 16,00 15,50 15,00 14,50 14,00 13,50 13,00 -50 -25 0 25 50 75 100 125 High side switch
MC33186
Figure 13. Over Current Detection versus
Temperature
T, TEMPERATURE (C)
T, TEMPERATURE (C)
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Figure 14. Current Limitation
I(out) max= 7A
Figure 15. Switch off Time
ta=20.5s Imotor (1A/div)
Imotor (1A/div)
Out1 (5V/div)
Out2 (5V/div)
Figure 16. Output Switching Time: Tr
Figure 17. Output Switching Time: Tf
Out1 (5V/div)
Out1 (5V/div)
tr=3.7s
tf=2.6s
MC33186
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Figure 18. Output OFF Delay Figure 19. Output ON Delay
MC33186
in1 (1V/div)
tdon=5.8s Out1 (2V/div) Out1 (2V/div)
in1 (1V/div) tdoff=12.5s
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Figure 20. Disable Delay Time
Figure 21. High side Overcurrent Detection
di2 (1V/div)
I(5A/div) Out1 (2V/div) Iochs= 16A
tdiss=0.9s
MC33186
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MC33186
Freescale Semiconductor, Inc. PACKAGE INFORMATION
The HSOP20 package is designed for enhanced thermal performance. The particularity of this package is its copper baseplate on which the power die is soldered. The baseplate is soldered on a PCB to provide heat flow to the ambient and also to provide a large thermal capacitance. Of course, the more copper area on the PCB, the better the power dissipation and transient behaviour. We characterized the HSOP20 on a double side PCB. The bottom side area of the copper is 7.8 cm2. The top surface is 2.7 cm2, see Figure 22.
Figure 23. PHSOP20 Thermal Response
100
10
Rth (C/W) 1
Figure 22. PCB Test Layout
0,1 0,001
0,01
0,1
1
10 t, Time (s)
100
1000
10000
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Figure 23 shows the thermal response with the device soldered on to the test PCB described on figure 22.
Top Side
Bottom Side
MC33186
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CASE OUTLINES
MC33186
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Motorola reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Motorola does not assume any liability arising out of the application or use of any product or circuit described herein ; neither does it convert any licence under its patent rights of others. Motorola products are not authorized for use as components in life support devices or systems intended for surgical implant into the body or intended to support or sustain life. Buyer agrees to notify Motorola of any such intended end use whereupon Motorola shall determine availability and suitability of its products for the use intended. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Employment opportunity/Affirmative Action Employer.
MC33186
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