DRV8245-Q1
SLVSFJ1A – NOVEMBER 2021 – REVISED DECEMBER 2021
DRV8245-Q1 Automotive H-Bridge Driver with Integrated Current Sense and
Diagnostics
1 Features
3 Description
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AEC-Q100 qualified for automotive applications:
– Temperature grade 1: –40°C to +125°C, TA
Functional Safety-Capable
– Documentation available to aid functional safety
system design
4.5-V to 35-V (40-V abs. max) operating range
VQFN-HR package: RON_LS + RON_HS: 32 mΩ
HTSSOP package: RON_LS + RON_HS: 40 mΩ
IOUT Max = 32 A
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 on-
state to detect open load and short circuit
– Voltage monitoring on supply (VM)
– Over current protection
The DRV824x-Q1 family of devices is a fully
integrated H-bridge driver intended for a wide
range of automotive applications. The device can
be configured as a single full-bridge driver or as
two independent half-bridge drivers. Designed in a
BiCMOS high power process technology node, this
monolithic family of devices in a power package
offer 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 also has identical
pin function with scalable RON (current capability) to
support different loads.
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The devices integrate a N-channel H-bridge, charge
pump regulator, high-side current sensing and
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
over temperature. Fault conditions are indicated on
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.
– Over temperature protection
– Fault indication on nFAULT pin
Supports 3.3-V, 5-V logic inputs
Low sleep current - 1μA typical at 25°C
3 variants - HW (H), SPI (S) or SPI (P)
Configurable control modes:
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– Single full bridge using PWM or PH/EN mode
– Two half-bridges using Independent mode
Device family comparison table
Device Information(1)
PART NUMBER
DRV8245-Q1
PACKAGE
VQFN-HR (16)
HTSSOP (28)
BODY SIZE (nominal)
3.5 mm X 5.5 mm
4.4 mm X 9.7 mm
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2 Applications
DRV8245-Q1(2)
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Automotive brushed DC motors, Solenoids
Door modules , wiper modules , trunk and seat
modules
(1) For all available packages, see the orderable addendum at
the end of the data sheet
(2) Device available for preview only.
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Body control module (BCM)
E-Shifter
Steering systems
Gas engine systems
On board charger
4.5 - 35 V
nSLEEP
DRV824X-Q1
Driver Control
nFAULT
Full Bridge
Driver
SPI (SPI variant)
CONFIG pins
(HW variant)
Diagnos cs
Current Sense
IPROPI
ADC
Current Regula on
Built-in Protec on
Simplified Schematic
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.