Specification	TMP821DR

Applications	Fan Controller
Function	Controller - Commutation, Direction Management
Interface	Parallel
Motor Type - AC, DC	Brushed DC
Mounting Type	Surface Mount
Operating Temperature [Max]	100 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Pre-Driver - Low Side (2)
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Voltage - Supply [Max]	28 V
Voltage - Supply [Min]	4 V

TMP821 Series

30-V max sensored half-wave single-phase BLDC gate driver

Part	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Package / Case [y]	Package / Case [x]	Applications	Mounting Type	Motor Type - AC, DC	Output Configuration	Function	Supplier Device Package	Interface
Texas Instruments TMP821DR	-40 °C	100 °C	4 V	28 V	8-SOIC	3.9 mm	0.154 in	Fan Controller	Surface Mount	Brushed DC	Pre-Driver - Low Side (2)	Controller - Commutation Direction Management	8-SOIC	Parallel

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	$ 0.92
		10	$ 0.81
		25	$ 0.76
		100	$ 0.62
		250	$ 0.57
		500	$ 0.49
		1000	$ 0.39
	Digi-Reel®	1	$ 0.92
		10	$ 0.81
		25	$ 0.76
		100	$ 0.62
		250	$ 0.57
		500	$ 0.49
		1000	$ 0.39
	Tape & Reel (TR)	2500	$ 0.35
		5000	$ 0.33
		12500	$ 0.32
		25000	$ 0.31
Texas Instruments	LARGE T&R	1	$ 0.69
		100	$ 0.53
		250	$ 0.39
		1000	$ 0.28

Description

General part information

TMP821 Series

The TMP821 device is a two-phase half-wave motor predriver that is suited for fan motors, which has winding in push-pull configuration. It uses differential hall effect sensors for commutation signals for two of the switches in power circuit. The device has a very small pin count, making it very simple to use.

Documents

Technical documentation and resources

TMP821 Two-Phase Half-Wave Motor Predriver datasheet (Rev. A)

Data sheet