VNH5050A-E STMicroelectronics, VNH5050A-E Datasheet - Page 22

• Manufacturer Part Number: VNH5050A-E
• Description: Motor / Motion / Ignition Controllers & Drivers Automotive H-Bridge 50mOhm 30A 41V VCC
• Manufacturer: STMicroelectronics

Specifications of VNH5050A-E

• Product Category: Motor / Motion / Ignition Controllers & Drivers
• Rohs: yes

Application information
Figure 12. Behavior in fault condition (how a fault can be cleared)
Note:
3.1
22/33
In any case, when a fault is detected, the faulty leg of the bridge is latched off. To turn on the
respective output (OUT
In case of the fault condition is not removed, the procedure for unlatching and sending the
device in Stby mode is:
- Clear the fault in the device (toggle: IN
- Pull low all inputs, PWM and Diag/EN pins within t
If the Diag/En pins are already low, PWM = 0, the fault can be cleared simply toggling the
input. The device enters in stby mode as soon as the fault is cleared.
Reverse battery protection
Three possible solutions can be considered:
The device sustains no more than -25 A in reverse battery conditions because of the two
body diodes of the Power MOSFETs. Additionally, in reverse battery condition the I/Os of
VNH5050A-E is pulled down to the V
–
–
–
A Schottky diode D connected to V
An N-channel MOSFET connected to the GND pin (see
A P-channel MOSFET connected to the V
X
) again, the input signal must rise from low to high level.
Doc ID 16009 Rev 10
CC
A
line (approximately -1.5 V).
if EN
CC
A
pin
= 0 or IN
DEL
CC
pin
.
B
if EN
B
= 0)
Figure 11
)
VNH5050A-E