Features and Benefits
- 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 mΩ 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
Description
The SPF7302 is a fully protected, single chip full-bridge driver IC for DC brush motor applications. The various protection circuits integrated are: overvoltage protection (OVP); overcurrent protection (OCP) with latch, which is adapted to the DMOSFETs in each full bridge; undervoltage lockout (UVLO); open load detection; and overcurrent limitation.
The package is a thermally enhanced 16-pin HSOP power package with an exposed thermal pad on the bottom side of the package.
Functional Block Diagram
