The L9997ND is a dual half bridge driver from STMicroelectronics that is designed to drive various loads, including DC motors. The chip has very low quiescent current and features protection against undervoltage and overvoltage conditions. It also includes real time diagnostic functions.
The L9997ND is a monolithic integrated driver in BCD technology intended to drive various loads, including DC motors, optimized for automotive electronics environmental conditions. It features dual half-bridge outputs with typical on-resistance (RON) of 0.7Ω and an output current capability of ±1.2A.
| Typical RON | 0.7Ω |
|---|---|
| Output Current Capability | ±1.2A |
| Operating Supply Voltage Range | 7V to 16.5V |
| Supply Overvoltage Protection | Up to 40V |
| Quiescent Current in Standby Mode | < 1µA |
| Thermal Shut-down Junction Temperature | 165 °C |
| DC Output Current (Max) | ±1.8 A |
The typical on-resistance is 0.7Ω.
The operating supply voltage range is 7V to 16.5V.
Yes, it has a supply overvoltage protection function for VVS up to 40V.