Description：

The TPS4811x-Q1 family is a 100V smart high sidedriver with protection and diagnostics. With wideoperating voltage range of 3.5V–80V, the device issuitable for 12V, 24V, and 48V system designs.It has a strong 3.7A peak source (PU) and 4A peaksink (PD) GATE driver that enables power switchingusing parallel FETs in high current system designs.Use INP as the gate driver control input.The device has accurate current sensing (±2%)output (IMON) enabling system designs forenergy management. The device has integratedtwo-level overcurrent protection with FLT_I outputwith complete adjustability of thresholds andresponse time. Auto-retry and latch-off fault behaviorcan be configured. The device features remoteovertemperature protection with FLT_T output.The TPS48111-Q1 integrates a pre-charge driver (G)with control input (INP_G). This features enablesdesigns that must drive large capacitive loads. Inshutdown mode, the controller draws a total shutdowncurrent of 1.6µA at 48V supply input.The TPS4811x-Q1 is available in a 19-pin VSSOPpackage with a pin removed between adjacenthigh voltage and low voltage pins, providing 0.8mmclearance.

 Features：

• AEC-Q100 qualified with the following results

– Device temperature grade 1:–40°C to +125°C ambient operatingtemperature range

• Functional Safety-Capable

– Documentation available to aid functional safetysystem design

• 3.5V to 80V input range (100V absolute maximum)

• Output reverse polarity protection down to –30V

• Integrated 12V charge pump with 100µA capacity

• Low 1.6µA shutdown current (EN/UVLO = Low)

• Strong pull up (3.7A) and pull down (4A) gatedriver

• Drives external back-to-back N-channel MOSFETs

• Variant with integrated pre-charge switch driver(TPS48111-Q1) to drive capacitive loads

• Two-level adjustable overcurrent protection(IWRN, ISCP) with adjustable circuit breaker timer(TMR) and fault flag output (FLT_I)

• Fast short-circuit protection: 1.2µs (TPS48111-Q1),4µs (TPS48110-Q1)

• Accurate analog current monitor output (IMON):±2% at 30mV VSNS

• Accurate, adjustable undervoltage lockout (UVLO)and overvoltage protection (OV): < ±2%

• Remote overtemperature sensing (DIODE) andprotection with fault flag output (FLT_T)

Applications：

• Power distribution box

• Body control module

• DC/DC converter

• Battery management system