TMP821 Series

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

Catalog

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

Catalog

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

Key Features

• Built-In Lock Detection and Rotational SpeedSensing MechanismsCompact 8-Pin Package Reduces Number ofExternal Components RequiredAutomatic Restart When Motor Lock Is UndoneHall Amplifier Inputs Have HysteresisBuilt-In Lock Detection and Rotational SpeedSensing MechanismsCompact 8-Pin Package Reduces Number ofExternal Components RequiredAutomatic Restart When Motor Lock Is UndoneHall Amplifier Inputs Have Hysteresis

Description

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. 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.