The L9651 consists of four identical low side power switches, and supports serial diagnostic interface
The L9651 is a CMOS-compatible smart quad switch containing four identical low-side power switches. It features Modified VDMOS Power Stages capable of up to 2.2 Amperes and includes internal clamping at 70V for fast inductive load switching.
The device offers comprehensive diagnostic functions, including Open Load Detection, Short to Ground Detection, Short to Battery Detection, and Over Temperature detection. It utilizes a serial interface with a clock frequency up to 500kHz to indicate failure modes via an 8-bit serial register.
| On resistance (Typical) | 500 mOhm |
|---|---|
| Outputs current capability | 2.2 Amperes |
| Operating supply voltage range | 4.7V to 30V |
| Clamping voltage (Typical) | 70V |
| Serial Interface Clock Frequency | 500kHz |
The last fault is stored in an 8-bit serial register and indicated at Serial Data Out without needing to read out the interface.
The absolute maximum rating for Output Voltage is 65V.