VNH5050ATR-E STMicroelectronics, VNH5050ATR-E Datasheet - Page 21

• Manufacturer Part Number: VNH5050ATR-E
• Description: Motor / Motion / Ignition Controllers & Drivers Automotive H-Bridge 50mOhm 30A 41V VCC
• Manufacturer: STMicroelectronics
• Type: Automotive Fully Integrated H-Bridge Motor Driverr

Specifications of VNH5050ATR-E

• Product Category: Motor / Motion / Ignition Controllers & Drivers
• Rohs: yes
• Product: Fan / Motor Controllers / Drivers
• Operating Supply Voltage: 5.5 V to 18 V
• Supply Current: 8 mA
• Mounting Style: SMD/SMT
• Package / Case: PowerSSO-36

VNH5050A-E
3
Note:
Application information
In normal operating conditions the DIAG
device. This pin must be externally pulled high.
PWM pin usage: In all cases, a “0” on the PWM pin turns off both LS
When PWM rises back to “1”, LS
Figure 11. Typical application circuit for DC to 20 kHz PWM operation short circuit
The value of the blocking capacitor (C) depends on the application conditions and defines
voltage and current ripple on supply line at PWM operation. Stored energy of the motor
inductance may fly back into the blocking capacitor, if the bridge driver goes into 3-state.
This causes a hazardous overvoltage if the capacitor is not big enough. As basic orientation,
500µF per 10A load current is recommended.
In case of a fault condition the DIAG
The fault conditions are:
Possible origins of fault conditions may be:
OUT
OUT
When a fault condition is detected, the user can identify which power element is in fault by
monitoring the IN
Reg 5V
A
A
–
–
μC
is shorted to ground → overtemperature detection on high-side A
is shorted to V
33nF
Overtemperature on one or both high-sides
Short to battery condition on the output (over current detection on the low-side
Power MOSFET)
protection
DIAG
10K
1K
1K
1K
3.3K
1.5K
A
/EN
PWM
A
CS
IN
, IN
A
A
+ 5V
CC
B
, DIAG
→
low-side Power MOSFET over current detection
GND
LS
HS
Doc ID 16009 Rev 10
A
A
/EN
A
A
A
V
OUT
CC
or LS
A
X
A
100K
and DIAG
/EN
B
X
X
/EN
turn on again depending on the input pin state.
pin is considered as an output pin by the device.
G
D
X
S
M
V
B
pin is considered as an input pin by the
CC
/EN
b) N MOSFET
B
pins.
OUT
B
HS
LS
B
B
DIAG
Application information
GND
B
A
IN
/EN
B
and LS
B
B
+5V
C
B
3.3K
switches.
1K
1K
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