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TPS4811-Q1

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Automotive 3.5-V to 80-V high side driver with protection and diagnostics

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Data sheet

TPS4811-Q1

ACTIVE
Data sheet Order now

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
  • 3.5-V to 80-V input range (100-V absolute maximum)
  • Output reverse polarity protection down to –30 V
  • Integrated 12-V charge pump with 100-µA capacity
  • Low 1.6-µA shutdown current (EN/UVLO = Low)
  • Strong pull up (3.7 A) and pull down (4 A) 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: 1.2 µs (TPS48111-Q1), 4 µs (TPS48110-Q1)

  • Accurate analog current monitor output (IMON) – ±2% at 30 mV 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
  • 3.5-V to 80-V input range (100-V absolute maximum)
  • Output reverse polarity protection down to –30 V
  • Integrated 12-V charge pump with 100-µA capacity
  • Low 1.6-µA shutdown current (EN/UVLO = Low)
  • Strong pull up (3.7 A) and pull down (4 A) 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: 1.2 µs (TPS48111-Q1), 4 µs (TPS48110-Q1)

  • Accurate analog current monitor output (IMON) – ±2% at 30 mV 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 100-V smart high side driver with protection and diagnostics. With wide operating voltage range of 3.5 V–80 V, the device is suitable for 12-V, 24-V and 48-V system designs.

It has a strong 3.7-A peak source (PU) and 4-A 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 1.6 µA at 48-V 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 0.8-mm clearance.

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

It has a strong 3.7-A peak source (PU) and 4-A 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 1.6 µA at 48-V 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 0.8-mm clearance.
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Technical documentation

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Type Title Date
* Data sheet TPS4811-Q1 100-V Automotive Smart High Side Driver with Protection and Diagnostics datasheet (Rev. C) PDF | HTML 21 Dec 2022
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

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

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The TPS48110Q1EVM allows reference circuit evaluation of TI's TPS48101-Q1 controller. TPS48110-Q1 is 3.5-V to 80-V smart high-side controller with two-level adjustable over current protection with adjustable circuit breaker timer, overvoltage protection, fast short-circuit protection, accurate (...)

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Evaluation board

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Simulation model

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Calculation tool

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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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