Specification	MCF8315A1VRGFR

Applications	Fan Motor Driver
Current - Output	4 A
Function	Driver - Fully Integrated, Control and Power Stage
Interface	I2C, Analog, PWM
Motor Type - AC, DC	Brushless DC (BLDC)
Motor Type - Stepper	Multiphase
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Half Bridge (3)
Package / Case	40-VFQFN Exposed Pad
Supplier Device Package	40-VQFN
Technology	NMOS
Voltage - Load [Max]	35 V
Voltage - Load [Min]	4.5 V
Voltage - Supply [Max]	35 V
Voltage - Supply [Min]	4.5 V

MCF8315A Series

40-V max, 4-A peak, sensorless FOC control three-phase BLDC motor driver

Part	Operating Temperature [Min]	Operating Temperature [Max]	Technology	Motor Type - Stepper	Package / Case	Voltage - Load [Max]	Voltage - Load [Min]	Interface	Supplier Device Package	Output Configuration	Mounting Type	Function	Current - Output	Motor Type - AC, DC	Voltage - Supply [Min]	Voltage - Supply [Max]	Applications
Texas Instruments MCF8315A1VRGFR	-40 °C	125 °C	NMOS	Multiphase	40-VFQFN Exposed Pad	35 V	4.5 V	Analog I2C PWM	40-VQFN	Half Bridge (3)	Surface Mount	Driver - Fully Integrated Control and Power Stage	4 A	Brushless DC (BLDC)	4.5 V	35 V	Fan Motor Driver

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.79
		10	$ 3.40
		25	$ 3.22
		100	$ 2.79
		250	$ 2.64
		500	$ 2.37
		1000	$ 2.00
	Digi-Reel®	1	$ 3.79
		10	$ 3.40
		25	$ 3.22
		100	$ 2.79
		250	$ 2.64
		500	$ 2.37
		1000	$ 2.00
	Tape & Reel (TR)	3000	$ 1.71
		6000	$ 1.64
Texas Instruments	LARGE T&R	1	$ 2.56
		100	$ 2.25
		250	$ 1.58
		1000	$ 1.27

Description

General part information

MCF8315A Series

The MCF8315A provides a single-chip, code-free sensorless FOC solution for customers driving speed-controlled 12- to 24-V brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM) up to 4-A peak current. The MCF8315A integrates three ½-bridges with 40-V absolute maximum capability and a low R DS(ON) of 240 mΩ (high-side + low-side FETs). MCF8315A integrates power management circuits including an voltage-adjustable buck regulator (3.3 V / 5 V, 170-mA) and LDO (3.3 V / 20 mA) that can be used to power external circuits.

The FOC algorithm configuration can be stored in non-volatile EEPROM, which allows the device to operate stand-alone once it has been configured. The device receives a speed command through a PWM input, analog voltage, variable frequency square wave or I 2C command. There are a large number of protection features integrated into the MCF8315A, intended to protect the device, motor, and system against fault events.

Documentation for reference: