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DRV81242-Q1

ACTIVE

Automotive, 40V, 2-channel configurable, 4-channel high-side, 2-channel low-side driver

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Data sheet

DRV81242-Q1

ACTIVE
Data sheet Order now

Product details

Control interface SPI Control mode PWM Features Limp home, Open-Load Detection, Paralleling of outputs, Reverse Battery Protection Iout/ch (max) (A) 0.33 Number of channels 8 RDS(on) (Ω) 1 Sleep current (mA) 0.005 Vs (min) (V) 3 Vs ABS (max) (V) 40 Operating temperature range (°C) to Rating Automotive
Control interface SPI Control mode PWM Features Limp home, Open-Load Detection, Paralleling of outputs, Reverse Battery Protection Iout/ch (max) (A) 0.33 Number of channels 8 RDS(on) (Ω) 1 Sleep current (mA) 0.005 Vs (min) (V) 3 Vs ABS (max) (V) 40 Operating temperature range (°C) to Rating Automotive
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4

  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
    • Documentation to aid functional safety design
  • 3V to 40V Analog supply voltage
    • Cranking capability down to 3V
    • Supports LV124 automotive standard
  • 3V to 5.5V Digital supply voltage
    • Compatible with 3.3V and 5V microcontrollers
  • 42V minimum drain to source clamping voltage
  • -18V maximum source to ground clamping voltage
  • Independent supply (VM_HS) for high-side channels
  • RDS(ON): 700mΩ typical at 12V, 25 °C
  • Current: 330mA per output at 85 °C, with all channels ON
  • 2 parallel inputs with mapping functionality
  • Fail-safe activation in Limp Home mode
    • Using nSLEEP and IN pins
  • Two independent internal PWM generators
  • Bulb Inrush Mode (BIM) to drive lamps
    • For 2W/5W lamps and other capacitive loads
  • Low-current sleep mode, < 3µA for TJ ≤ 85 °C
  • 16-bit SPI for control and diagnosis
    • Daisy Chain capability
    • Compatible with 8-bit SPI devices
  • Supports various protection features
    • Reverse battery protection
    • Short circuit to ground and battery protection
    • Stable behavior at under voltage conditions
    • Over Current latch OFF
    • Overtemperature warning
    • Thermal shutdown latch OFF
    • Overvoltage protection
    • Loss of battery and loss of ground protection
    • Electrostatic discharge (ESD) protection
  • Supports several diagnostic features
    • Diagnostic information via SPI register
    • Over Load detection at ON state
    • Open Load detection in ON and OFF state
    • Input and output status monitor

  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
    • Documentation to aid functional safety design
  • 3V to 40V Analog supply voltage
    • Cranking capability down to 3V
    • Supports LV124 automotive standard
  • 3V to 5.5V Digital supply voltage
    • Compatible with 3.3V and 5V microcontrollers
  • 42V minimum drain to source clamping voltage
  • -18V maximum source to ground clamping voltage
  • Independent supply (VM_HS) for high-side channels
  • RDS(ON): 700mΩ typical at 12V, 25 °C
  • Current: 330mA per output at 85 °C, with all channels ON
  • 2 parallel inputs with mapping functionality
  • Fail-safe activation in Limp Home mode
    • Using nSLEEP and IN pins
  • Two independent internal PWM generators
  • Bulb Inrush Mode (BIM) to drive lamps
    • For 2W/5W lamps and other capacitive loads
  • Low-current sleep mode, < 3µA for TJ ≤ 85 °C
  • 16-bit SPI for control and diagnosis
    • Daisy Chain capability
    • Compatible with 8-bit SPI devices
  • Supports various protection features
    • Reverse battery protection
    • Short circuit to ground and battery protection
    • Stable behavior at under voltage conditions
    • Over Current latch OFF
    • Overtemperature warning
    • Thermal shutdown latch OFF
    • Overvoltage protection
    • Loss of battery and loss of ground protection
    • Electrostatic discharge (ESD) protection
  • Supports several diagnostic features
    • Diagnostic information via SPI register
    • Over Load detection at ON state
    • Open Load detection in ON and OFF state
    • Input and output status monitor

The DRV81242-Q1 is an 8-channel low and high-side driver with protection and diagnostics. The device is designed to control relays, LEDs, lamps and motors.

A serial peripheral interface (SPI) with daisy chain is utilized for control and diagnosis of the loads and the device. Two input pins with mapping functionality allow direct control of the outputs. The device supports Limp Home for fail-safe activation. Integrated PWM generators enable driving LEDs, and bulb inrush mode enables driving loads with large capacitance. Clamp circuits on each output dissipates the energy during turning OFF inductive loads.

The device supports various protection features such as undervoltage, overvoltage, short circuit and open load detection. A high level of integration with embedded protection and diagnostic features make the DRV81242-Q1 an excellent choice for automotive body and powertrain applications.

The DRV81242-Q1 is an 8-channel low and high-side driver with protection and diagnostics. The device is designed to control relays, LEDs, lamps and motors.

A serial peripheral interface (SPI) with daisy chain is utilized for control and diagnosis of the loads and the device. Two input pins with mapping functionality allow direct control of the outputs. The device supports Limp Home for fail-safe activation. Integrated PWM generators enable driving LEDs, and bulb inrush mode enables driving loads with large capacitance. Clamp circuits on each output dissipates the energy during turning OFF inductive loads.

The device supports various protection features such as undervoltage, overvoltage, short circuit and open load detection. A high level of integration with embedded protection and diagnostic features make the DRV81242-Q1 an excellent choice for automotive body and powertrain applications.
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Technical documentation

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* Data sheet DRV81242-Q1 : 8-Channel, 40V, 700mΩ, Fully Protected, Configurable Low-side and High-side Driver for Automotive Relay, LED, Lighting and Motor Control datasheet (Rev. A) PDF | HTML 28 Mar 2025
Functional safety information DRV81602-Q1, DRV81242-Q1, DRV81620-Q1, and DRV81080-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 09 Feb 2026

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