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VNH5050A-E Datasheet

Automotive fully integrated H-bridge motor driver

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VNH5050A-E
Automotive fully integrated H-bridge motor driver
Features
Type
RDS(on)
Iout Vccmax
VNH5050A-E
50 mΩ max
(per leg)
30 A 41 V
Output current: 30 A
3 V CMOS compatible inputs
Undervoltage and overvoltage shutdown
Overvoltage clamp
Thermal shutdown
Cross-conduction protection
Current and power limitation
Very low standby power consumption
PWM operation up to 20 KHz
Protection against loss of ground and loss of
VCC
Current sense output proportional to motor
current
Output protected against short to ground and
short to VCC
Package: ECOPACK®
Description
The VNH5050A-E is a full bridge motor driver
intended for a wide range of automotive
applications. The device incorporates a dual
monolithic high-side driver and two low-side
switches. All switches are designed using
STMicroelectronics® well known and proven
PowerSSO-36 TP
proprietary VIPower® M0 technology that allows
to efficiently integrate on the same die a true
Power MOSFET with an intelligent
signal/protection circuitry. The three dies are
assembled in a PowerSSO-36 TP package on
electrically isolated lead frames. This package,
specifically designed for the harsh automotive
environment offers improved thermal
performance thanks to exposed die pads.
Moreover, its fully symmetrical mechanical design
allows superior manufacturability at board level.
The input signals INA and INB can directly
interface to the microcontroller to select the motor
direction and the brake condition. The DIAGA/ENA
or DIAGB/ENB, when connected to an external
pull-up resistor, enables one leg of the bridge.
Each DIAGA/ENA provides a digital diagnostic
feedback signal as well. The normal operating
condition is explained in the truth table. The CS
pin allows monitoring the motor current by
delivering a current proportional to its value when
CS_DIS pin is driven low or left open. When
CS_DIS is driven high, CS pin is in high
impedance condition. The PWM, up to 20 KHz,
allows to control the speed of the motor in all
possible conditions. In all cases, a low level state
on the PWM pin turns off both the LSA and LSB
switches.
Table 1. Device summary
Package
Tube
Order codes
Tape and reel
PowerSSO-36 TP
VNH5050A-E
VNH5050ATR-E
December 2011
Doc ID 16009 Rev 10
1/33
www.st.com
1


STMicroelectronics Electronic Components Datasheet

VNH5050A-E Datasheet

Automotive fully integrated H-bridge motor driver

No Preview Available !

Contents
Contents
VNH5050A-E
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.4 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1 Reverse battery protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4 Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1 PowerSSO-36 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1.1
Thermal calculation in clockwise and anti-clockwise operation in
steady-state mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1.2
Thermal resistances definition (values according to the PCB heatsink
area) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1.3 Thermal calculation in transient mode . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.2 PowerSSO-36 TP package information . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.3 PowerSSO-36 TP packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2/33 Doc ID 16009 Rev 10


Part Number VNH5050A-E
Description Automotive fully integrated H-bridge motor driver
Maker STMicroelectronics
Total Page 30 Pages
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