Date: 05/09/2009

New DC motor driver IC for automotive/industrial apps from Allegro

Allegro has introduced the SPF7302, a new fully protected, single chip full-bridge motor driver IC for DC brush motor applications, automotive and industrial markets.

Key features are,

Supply voltage (VBB): 36 V maximum
Maximum DC current 3 A continuous, 6 A pulsed (1 kHz, duty cycle <1%, pulse width <10 µs)
RDS (on) = 300 mOhm maximum, at TJ = 125°C
Operation modes: forward, reverse, brake (high- or lowside freewheeling current circulation)
Output disable pin (DI pin)
Protections:
Overvoltage protection (OVP), 36 V minimum
Overcurrent protection (OCP), 3 A typical
Overcurrent limitation (OCL), 6 A typical
Externally adjustable delay timer to halt OCL
Thermal shutdown protection (TSD), 151°C minimum
Undervoltage lockout on VBB (UVLO), 4.2 V minimum
Open load detection at startup
Diagnosis output linked to OVP, OCP, TSD, UVLO, and open load detection, at startup and in operation

Package: 16-pin HSOP with exposed thermal pad and tabs
For more details visit www.allegromicro.com