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February 2011 Doc ID 16082 Rev 5 1/46
1
L99MD02
Hexa half-bridge driver with SPI control
for automotive applications
Features
■
6 half bridges
■
R
ON
= typ.0.9 Ω (HS), 0.64 Ω (LS) at
T
j
=25°C
■
Current limit of each output at minimum 0.8 A
■
Internal PWM generation
■
PWM mode option for all half bridges for hold
current
■
Two current monitor outputs
■
SPI interface for data communication
■
Temperature warning
■
All outputs overtemperature protected
■
All outputs short circuit protected
■
V
CC
supply voltage 3.0 to 5.3 V
■
Very low current consumption in standby mode
typ. 5 µA
■
V
S
operating range compliant: 6 – 18 V
Applications
■
DC motor driver Intended to drive HVAC flaps
Description
The L99MD02 IC is a 6 x half bridge driver for
automotive applications. The device is intended to
drive DC-motors. It is possible to drive 3
DC-motors simultaneously or up to 5 DC-motors
sequentially.
The integrated 24 bit standard serial peripheral
interface (SPI) controls all outputs and provides
diagnostic information: normal operation,
open-load in on-state, overcurrent, temperature
warning and overtemperature.
Table 1. Device summary
Package
Order code
Tube Tape and reel
PowerSSO-
36
L99MD02XP L99MD02XPTR
PowerSSO-36
*$3*&)7
www.st.com
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