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1 Features

? AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

? – Documentation available to aid functional safety

system design

? 4.5-V to 35-V (40-V abs. max) operating range

? QFN package: RON_LS + RON_HS = 250 mΩ

? IOUT Max = 6 A (QFN)

? PWM frequency operation up to 25 KHz with

automatic dead time assertion

? Configurable slew rate and spread spectrum

clocking for low electromagnetic interference (EMI)

? Integrated current sense (eliminates shunt resistor)

? Proportional load current output on IPROPI pin

? Configurable current regulation

? Protection and diagnostic features with

configurable fault reaction (latched or retry)

– Load diagnostics in both the off-state and onstate

to detect open load and short circuit

– Voltage monitoring on supply (VM)

– Over current protection

– Over temperature protection

– Fault indication on nFAULT pin

? Supports 3.3-V, 5-V logic inputs

? Low sleep current - 1.3 μA typical at 25°C

? 3 variants - HW (H), SPI (S), or SPI (P)

? Single full bridge using PWM or PH/EN mode

? Device family comparison table

2 Applications

? Automotive brushed DC motors, Solenoids

? Door modules and seat modules

? Body control module (BCM)

? Gas engine systems

? On board charger

3 Description

The DRV824x-Q1 family of devices is a fully

integrated H-bridge driver intended for a wide

range of automotive applications. The device is a

bidirectional full-bridge driver with PWM or phaseenable

control. Designed in a BiCMOS high-power

process technology node, this monolithic family

of devices in a power package offers excellent

power handling and thermal capability while providing

compact package size, ease of layout, EMI control,

accurate current sense, robustness, and diagnostic

capability. This family provides an identical pin

function with scalable RON (current capability) to

support different loads.

The devices integrate an N-channel H-bridge, charge

pump regulator, high-side current sensing with

regulation, current proportional output, and protection

circuitry. A low-power sleep mode is provided to

achieve low quiescent current. The devices offer

voltage monitoring and load diagnostics as well as

protection features against over-current and overtemperature.

Fault conditions are indicated on the

nFAULT pin. The devices are available in three

variants - hardwired interface: HW (H) and two SPI

interface variants: SPI(P) and SPI(S), with SPI (P)

for externally supplied logic supply and SPI (S) for

internally generated logic supply. The SPI interface

variants offer more flexibility in device configuration

and fault observability.