This datasheet introduces the features, characteristics and applications of L9904. L9904 is a control circuit for power MOS bridge driver in automotive applications with ISO 9141bus interface.
The L9904 is a control circuit designed for power MOS bridge drivers in automotive applications. It features an integrated charge pump to drive high-side switches, reverse battery protection, and compatibility with the ISO 9141 bus interface.
Key capabilities include programmable cross conduction protection time, real-time diagnostics via an open-drain output, and various protection mechanisms such as overvoltage, undervoltage, short circuit, and thermal shutdown. The device operates with a supply voltage ranging from 8V to 28V or can utilize an internal step-up converter for 6V operation.
| Operating Supply Voltage | 8V to 28V (6V with step-up converter) |
|---|---|
| Overvoltage Max. | 40V |
| Quiescent Current (Standby) | Less than 50uA |
| PWM Operation Frequency | Up to 30kHz |
| Operating Junction Temperature | -40 to 150 °C |
The device operates with a supply voltage from 8V to 28V, or 6V if an implemented step-up converter is used.
Yes, it includes a charge pump for driving a power MOS as reverse battery protection.
It features an ISO 9141 compatible interface for automotive applications.