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TPS4811-Q1
  • TPS4811-Q1
  • TPS4811-Q1
  • TPS4811-Q1
  • TPS4811-Q1
  • TPS4811-Q1

TPS4811-Q1

ACTIVE

Automotive, 3.5V to 100V high-side driver with protection and diagnostics

Texas Instruments TPS4811-Q1 Product Info

1 April 2026 3

Parameters

Operating voltage (max) (V)

100

Operating voltage (min) (V)

3.5

Features

Current monitoring, Current sense/monitor, High-side RSNS, Overcurrent protection with adjustable delay, Precharge FET driver, Short circuit protection

Reverse polarity protection (V)

-30

Quiescent current (Iq) (µA)

613

IGate sink (typ) (A)

4

IGate source (typ) (A)

3.7

Current sense accuracy

+/-2% at 30-mV VSNS

Short-circuit protection response time (µs)

1.2, 4

Operating temperature range (°C)

-40 to 125

Rating

Automotive

Package

VSSOP (DGX)-19-15.3 mm² 5.1 x 3

Features

  • AEC-Q100 qualified with the following results
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • 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) gate driver
  • 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) and protection with fault flag output (FLT_T)
  • AEC-Q100 qualified with the following results
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • 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) gate driver
  • 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) and protection with fault flag output (FLT_T)

Description

The TPS4811x-Q1 family is a 100V smart high side driver with protection and diagnostics. With wide operating voltage range of 3.5V–80V, the device is suitable for 12V, 24V, and 48V system designs.

It has a strong 3.7A peak source (PU) and 4A peak sink (PD) GATE driver that enables power switching using 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 for energy management. The device has integrated two-level overcurrent protection with FLT_I output with complete adjustability of thresholds and response time. Auto-retry and latch-off fault behavior can be configured. The device features remote overtemperature protection with FLT_T output.

The TPS48111-Q1 integrates a pre-charge driver (G) with control input (INP_G). This features enables designs that must drive large capacitive loads. In shutdown mode, the controller draws a total shutdown current of 1.6µA at 48V supply input.

The TPS4811x-Q1 is available in a 19-pin VSSOP package with a pin removed between adjacent high voltage and low voltage pins, providing 0.8mm clearance.

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