DRV2911QRGFRQ1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications

– Temperature grade 1: –40°C ≤ TA ≤ 125°C

– Wettable flank package

• 2-Channel half bridge driver

– PWM-inputs for each half bridge control

– Overcurrent protection

– Supports up to 200kHz PWM frequency

• 5V to 35V operating voltage (40V abs max)

• High output current capability: 8A Peak

• Low MOSFET on-state resistance

– 95mΩ (typ.) RDS(ON) (HS + LS) at TA = 25°C

• Low power sleep mode

– 2.5μA (max.) at VPVDD = 13.5V, TA = 25°C

• Supports 1.8V, 3.3V, and 5V logic inputs

• Built-in 3.3V, 30mA LDO regulator

• Integrated protection features

– Supply undervoltage lockout (UVLO)

– Charge pump undervoltage (CPUV)

– Overcurrent protection (OCP)

– Thermal warning and shutdown (OTW/OTSD)

– Fault condition indication pin (FAULTZ)

2 Applications

• Automotive Thermal Camera

• Camera module without processing

• Mirror replacement/camera mirror system

• Rear Camera

• Surround view system ECU

3 Description

DRV2911-Q1 integrates two H-bridges for driving

piezo-based Lens Cover Systems, LCS, up to 40V

absolute maximum capability while maintaining a very

low RDS(ON) to reduce switching losses. DRV2911-Q1

integrates a power management LDO (3.3V / 30mA)

and buck converter (5.0V to 5.7V, ≤200mA) that can

be used to power external circuits like the Ultrasonic

Lens Cleaning (ULC) controller, ULC1001.

Each output driver channel consists of N-channel

power MOSFETs configured in a half-bridge

configuration. Two independent PWM inputs drive

each half-bridge. The DRV2911-Q1 includes a 30mA,

3.3V LDO regulator.

Several protection features including supply

undervoltage lockout (UVLO), charge pump

undervoltage (CPUV), overcurrent protection

(OCP), over-temperature warning (OTW), and overtemperature

shutdown (OTSD) are integrated into

DRV2911-Q1 to protect the device and system

against fault events. Fault conditions are indicated by

the FAULTZ pin. The fault pin can also be tied to the

controller device, like ULC1001-Q1, where a fault can

be recognized over I2C.