The L9339 is a monolithic integrated quad low side driver from STMicroelectronics, with wide input and output voltage range, low stand-by quiescent current, output current limitation, over temperature protection etc.
The L9339 is a monolithic integrated quad low side driver intended to drive lines, lamps, or relays in automotive or industrial applications. It features a wide operating supply voltage range from 4.5 V up to 32 V, with transient capability up to 45 V. The device includes four open drain DMOS outputs with controlled output slope for low EMI and integrated output clamping for fast inductive recirculation.
| Supply voltage range | 4.5 V to 32 V (transient 45 V) |
|---|---|
| Quiescent current | < 2 mA |
| Output type | Four open drain DMOS outputs |
| Output ON-resistor | 1.7 to 3.8 Ohms |
| Output voltage clamping | 45 to 60 V |
| Short-circuit current | 0.4 to 0.7 A |
| Temperature shutdown switch-on | 160 to 200 °C |
Yes, the device has TTL and CMOS compatible inputs.
The supply voltage can reach 45 V for pulses less than 400 ms.