VN771KP-E STMicroelectronics, VN771KP-E Datasheet - Page 23

• Manufacturer Part Number: VN771KP-E
• Description: Power Switch ICs - Power Distribution Quad Smart Power 95mOhm 9A 36V VCC
• Manufacturer: STMicroelectronics

Specifications of VN771KP-E

• Product Category: Power Switch ICs - Power Distribution
• Rohs: yes
• Operating Supply Voltage: 5.5 V to 36 V

VN771KP-E
3
Application recommendations
Figure 44. Application diagram bridge drivers
Most motor bridge drivers use a reverse battery protection diode (D) inside the supply rail.
This diode prevents a reverse current flow back to V
disabled via the logic inputs while motor inductance still carries energy. In order to prevent a
hazardous overvoltage at circuit supply terminal (V
limit the voltage overshoot. As basic orientation, 50 µF per 1 A load current is
recommended. As an alternative, a Zener protection (Z) is also suitable.
Even if a reverse polarity diode is not present, it is recommended to use a capacitor or
Zener at V
has intermittent electrical contact to the battery or gets disconnected while the motor is
operating.
CC
because a similar problem appears in case the supply terminal of the module
Doc ID 018896 Rev 1
CC
BATT
), a blocking capacitor (C) is needed to
in case the bridge becomes
Application recommendations
23/34