DRV8244HQRYJRQ1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 to +125°C, TA

• – 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: 47 mΩ

• HVSSOP package: RON_LS + RON_HS: 60 mΩ

• IOUT Max = 21 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 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 - 1μA typical at 25°C

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

• Configurable control modes:

– Single full bridge using PWM or PH/EN mode

– Two half-bridges using Independent mode

• Device family comparison table