DRV8316C中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? AEC-Q100 qualified for automotive applications

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

? Three-phase BLDC motor driver

– Cycle-by-cycle current limit to limit phase

current

– Supports up to 200-kHz PWM frequency

– Active demagnetization to reduce power losses

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

? High output current capability: 8-A Peak

? Low MOSFET on-state resistance

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

? Low power sleep mode

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

? Multiple control interface options

– 6x PWM control interface

– 3x PWM control interface

– 6x PWM control interface with cycle by cycle

current limit

– 3x PWM control interface with cycle by cycle

current limit

? Does not require external current sense resistors,

built-in current sensing

? Flexible device configuration options

– DRV8316CR-Q1: 5-MHz 16-bit SPI interface for

device configuration and fault status

– DRV8316CT-Q1: Hardware pin based

configuration

? Supports 1.8-V, 3.3-V, and 5-V logic inputs

? Built-in 3.3-V/5-V, 200-mA buck regulator

? Built-in 3.3-V, 30-mA LDO regulator

? Delay compensation reduces duty cycle distortion

? Suite of integrated protection features

– Supply undervoltage lockout (UVLO)

– Charge pump undervoltage (CPUV)

– Overcurrent protection (OCP)

– Thermal warning and shutdown (OTW/OTSD)

– Fault condition indication pin (nFAULT)

– Optional fault diagnostics over SPI interface

2 Applications

? Brushless-DC (BLDC) Motor Modules

? Automotive LIDAR

? Small Automotive Fans and Pumps

? Automotive Actuators

3 Description

DRV8316C-Q1 integrates three H-bridges with 40-V

absolute maximum capability and a very low RDS(ON)

of 95 mΩ (high-side + low-side) to enable high power

drive capability for 12-V automotive brushless-DC

motors. DRV8316C-Q1 provides integrated current

sensing which eliminates the need for external

sense resistors. DRV8316C-Q1 integrates power

management circuits including an voltage-adjustable

buck regulator (3.3-V / 5-V, 200-mA) and LDO (3.3-V /

30-mA) that can be used to power external circuits.

DRV8316C-Q1 provides a configurable 6x or 3x PWM

control scheme which can be used to implement

sensored or sensorless field-oriented control (FOC),

sinusoidal control, or trapezoid control using an

external microcontroller. DRV8316C-Q1 is capable

of driving a PWM frequency of up to 200 kHz.

DRV8316C-Q1 is highly configurable either through

SPI (DRV8316CR-Q1) or pins (DRV8316CT-Q1) -

PWM mode. slew rate, OCP level, current sense gain

are some of the configurable features.

A number of protection features including supply

undervoltage lockout (UVLO), overvoltage protection

(OVP), charge pump undervoltage (CPUV),

overcurrent protection (OCP), over-temperature

warning (OTW) and over-temperature shutdown

(OTSD) are integrated into DRV8316C-Q1 to protect

the device, motor, and system against fault events.

Fault conditions are indicated by the nFAULT pin.

Refer Application Information for design consideration

and recommendation on device usage.