UC3770AQTR

Description：IC HALF BRIDGE DRIVER 2A 28PLCC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:7f7aba625552 Category: Full Half-Bridge (H Bridge) Drivers Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC HALF BRIDGE DRIVER 2A 28PLCC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Output Configuration：Half Bridge (2)
Applications：General Purpose, Stepper Motors
Interface：Logic
Load Type：Inductive
Technology：Bipolar
Rds On (Typ)：-
Current - Output / Channel：2A
Current - Peak Output：-
Voltage - Supply：4.75V ~ 5.3V
Voltage - Load：10V ~ 45V
Operating Temperature：0°C ~ 150°C (TJ)
Features：-
Fault Protection：Over Temperature
Mounting Type：Surface Mount
Package / Case：28-LCC (J-Lead)
Supplier Device Package：28-PLCC (11.51x11.51)
Grade：-
Qualification：-

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UC3770AQTR

Overview

The UC3770AQTR is a dual half-bridge driver manufactured by Texas Instruments, designed for general and bipolar stepper motor applications. It operates with a supply voltage range of 4.75V to 5.3V and supports load voltages from 10V to 45V. The device delivers an output current of 2A per channel and features overtemperature fault protection. Packaged in a 28-PLCC (J-Lead) surface-mount format measuring 11.51x11.51mm, it functions within a junction temperature range of 0°C to 150°C.

Feature Summary

Dual half-bridge configuration supporting bipolar stepper motor control
Integrated overtemperature fault protection mechanism
Logic interface for digital control signals

Applications

General purpose motor control systems
Bipolar stepper motor drive circuits

Procurement Notes

Verify component authenticity through authorized channels as the UC3770AQTR is listed as obsolete. Confirm package integrity and pin alignment against the 28-PLCC specification before integration. Ensure design compatibility with the specified 4.75V to 5.3V supply range and 10V to 45V load requirements. Review datasheet thermal guidelines to maintain junction temperatures within the 0°C to 150°C operational limit.

Selection Notes

Select this component for applications requiring a dedicated dual half-bridge driver for bipolar stepper motors. Consider the 2A output capability and 28-PLCC surface-mount packaging for PCB layout constraints. Evaluate the narrow 4.75V to 5.3V supply voltage window against system power rails. Verify that the logic interface aligns with existing control circuitry levels.

Part Context

The UC3770 series belongs to Texas Instruments' portfolio of motor and motion controllers. This specific variant represents the advanced quality (AQ) version in a tape-and-reel package. It complements other drivers in the lineup by offering specialized support for bipolar stepper configurations with integrated thermal management.