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TPS1211-Q1

ACTIVE

Automotive, 3.5V to 45V high-side driver with protection and diagnostics

Product details

Operating voltage (max) (V) 45 Operating voltage (min) (V) 3.5 Features Adjustable current limit, Automotive load dump compatibility, Current monitoring, 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 Operating temperature range (°C) -40 to 125 Rating Automotive
Operating voltage (max) (V) 45 Operating voltage (min) (V) 3.5 Features Adjustable current limit, Automotive load dump compatibility, Current monitoring, 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 Operating temperature range (°C) -40 to 125 Rating Automotive
VSSOP (DGX) 19 15.3 mm² (5.1 mm × 3 mm)
  • 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 40V input range (45V absolute maximum)
  • Output reverse polarity protection down to –30V
  • Integrated 12V charge pump with 100µA capacity
  • Low 0.9µA shutdown current (EN/UVLO = Low)
  • Strong pullup (3.7A) and pulldown (4A) gate driver
  • Drives external back-to-back N-channel MOSFETs
  • Variant with integrated pre-charge switch driver (TPS12111-Q1) to drive capacitive loads
  • Two-level adjustable overcurrent protection (IWRN, ISCP) with adjustable response time (TMR) and fault flag output (FLT_I)
  • Fast short-circuit protection: 1.2µs (TPS12111-Q1, TPS12112-Q1), 4µs (TPS12110-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)
  • Pin-to-pin compatible with TPS4811-Q1
  • 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 40V input range (45V absolute maximum)
  • Output reverse polarity protection down to –30V
  • Integrated 12V charge pump with 100µA capacity
  • Low 0.9µA shutdown current (EN/UVLO = Low)
  • Strong pullup (3.7A) and pulldown (4A) gate driver
  • Drives external back-to-back N-channel MOSFETs
  • Variant with integrated pre-charge switch driver (TPS12111-Q1) to drive capacitive loads
  • Two-level adjustable overcurrent protection (IWRN, ISCP) with adjustable response time (TMR) and fault flag output (FLT_I)
  • Fast short-circuit protection: 1.2µs (TPS12111-Q1, TPS12112-Q1), 4µs (TPS12110-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)
  • Pin-to-pin compatible with TPS4811-Q1

The TPS1211-Q1 family is a 45V, smart high-side driver with protection and diagnostics. With wide operating voltage range of 3.5V–40V, the device is suitable for 12V system designs.

The device 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% at 30mV) 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 TPS12111-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 (EN/UVLO < 0.3V), the controller draws a total shutdown current of 0.9µA (typical).

The TPS1211-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 TPS1211-Q1 family is a 45V, smart high-side driver with protection and diagnostics. With wide operating voltage range of 3.5V–40V, the device is suitable for 12V system designs.

The device 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% at 30mV) 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 TPS12111-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 (EN/UVLO < 0.3V), the controller draws a total shutdown current of 0.9µA (typical).

The TPS1211-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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Top documentation Type Title Format options Date
* Data sheet TPS1211-Q1 45V Automotive Smart High-Side Driver With Protection and Diagnostics datasheet (Rev. E) PDF | HTML Apr 8, 2025
Application note Basics of High-Side Switches and Controllers PDF | HTML Mar 31, 2026
Functional safety information TPS1211x Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML Jan 29, 2026
Application note Achieving Reverse Battery Protection Using TI High Side Switch Controllers (Rev. A) PDF | HTML Nov 21, 2024
Analog design Journal Powering an offboard capacitive load in automotive zone-based power distribution systems PDF | HTML Aug 23, 2024
Certificate TPS1211Q1EVM EU RoHS Declaration of Conformity (DoC) Nov 4, 2022

Design & development

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VSSOP (DGX) 19 Ultra Librarian

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