
STMicroelectronics
DESCRIPTION
The L9651 consists of four identical low side power switches. A serial diagnostic interface indicates failure mode of each switch (short circuit to VBAT or ground and open load or over temperature).
■ Modified VDMOS Power Stage (UDSBR > 80V)
■ RDSON < 500 mOhm (Tj = 25°C)
■ CMOS Compatible Inputs
■ Enable Input (Reset)
■ Outputs Capable of up to 2.2 Amperes
■ Outputs Internally Clamped at 70V for Fast Inductive Load Switch Off
■ Wide operating supply voltage from 4.7V up to 30V
■ DIAGNOSTIC FUNCTIONS
■ Open Load Detection (Output off, 100sfiltering time)
■ Short to Ground Detection (Output off, 100s - filtering time)
■ Short to Battery Detection (Output on)
■ Over temperature detection (Output on)
■ Storage of last fault in 8 Bit - Serial Register
■ Fault Signal Indication at Serial Data Out without need to read out the Serial Interface
■ Daisy Chainable Serial Diagnostic
■ Serial Interface Clock Frequency up to 500kHz