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, 100sfiltering time)

■ Short to Ground Detection (Output off, 100s - 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