VNH5250AS-E Datasheet, PDF (1/18 Pages) STMicroelectronics – Automotive fully integrated H-bridge motor driver

VNH5250AS-E
Automotive fully integrated H-bridge motor driver
SO-16N
GAPGCFT00648
Features
Type
VNH5250AS-E
R_DS(on)
250 mΩ typ
(per leg)
I_out V_CCmax
8 A 41 V
• Output current: 8 A
• 3 V CMOS-compatible inputs
• Undervoltage shutdown
• Overvoltage clamp
• Thermal shutdown
• Cross-conduction protection
• Current and power limitation
• Very low standby power consumption
• Protection against loss of ground and loss of
V_CC
• Current sense output proportional to motor
current
• Output protected against short to ground and
short to V_CC
• Package: ECOPACK^®
Datasheet - target specification
Description
The VNH5250AS-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.
Both switches are designed using
STMicroelectronics’ well known and proven
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 SO-16N package on electrically
isolated leadframes. 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
IN_A and IN_B can directly interface to the
microcontroller to select the motor direction and
the brake condition. The DIAG_A/EN_A or
DIAG_B/EN_B, when connected to an external pull-
up resistor, enables one leg of the bridge. Each
DIAG_A/EN_A provides a feedback digital diagnostic
signal as well. The normal operating condition is
explained in the truth table. The CS pin allows to
monitor the motor current by delivering a current
proportional to its value.
Package
SO-16N
Table 1. Device summary
Order codes
Tube
VNH5250AS-E
Tape and reel
VNH5250ASTR-E
September 2013
DocID025102 Rev 2
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
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