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TPS4811-Q1

ACTIVE

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

Product details

Operating voltage (max) (V) 80 Operating voltage (min) (V) 3.5 Reverse polarity protection (V) -30 IGate sink (typ) (A) 4 IGate source (typ) (A) 4 VGS (max) (V) 13 Current sense accuracy +/-2% @ 30mV +/-6% @ 5mV Short-circuit protection response time (µs) 1.2 Features Automotive load dump compatibility, Current monitoring, Current sense/monitor, High-side RSNS, Overcurrent protection with adjustable delay, Precharge FET driver, Short circuit protection Operating temperature range (°C) -40 to 125 Rating Automotive
Operating voltage (max) (V) 80 Operating voltage (min) (V) 3.5 Reverse polarity protection (V) -30 IGate sink (typ) (A) 4 IGate source (typ) (A) 4 VGS (max) (V) 13 Current sense accuracy +/-2% @ 30mV +/-6% @ 5mV Short-circuit protection response time (µs) 1.2 Features Automotive load dump compatibility, Current monitoring, Current sense/monitor, High-side RSNS, Overcurrent protection with adjustable delay, Precharge FET driver, Short circuit protection Operating temperature range (°C) -40 to 125 Rating Automotive
VSSOP (DGX) 19 15.3 mm² 5.1 x 3
  • 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)

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.

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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Technical documentation

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Type Title Date
* Data sheet TPS4811-Q1 100V Automotive Smart High-Side Driver With Protection and Diagnostics datasheet (Rev. D) PDF | HTML 02 Apr 2024
Application note Achieving Reverse Battery Protection Using TI High Side Switch Controllers PDF | HTML 25 Apr 2023
User guide TPS48110Q1EVM: Evaluation Module for Smart High-Side Driver TPS48110-Q1 (Rev. A) PDF | HTML 21 Oct 2022
User guide TPS48111Q1EVM: Evaluation Module for Smart High-Side Driver TPS48111-Q1 (Rev. A) PDF | HTML 21 Oct 2022
Functional safety information TPS4811x-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 27 May 2022

Design & development

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Calculation tool

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Supported products & hardware

Supported products & hardware

Products
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Simulation tool

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Package Pins CAD symbols, footprints & 3D models
VSSOP (DGX) 19 Ultra Librarian

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