AH5798-WTG-7

$0.71

Description：IC MOTOR DRIVER 1.8V-5V TSOT25
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:05b0f7065384 Category: Motor Drivers, Controllers Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：IC MOTOR DRIVER 1.8V-5V TSOT25
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)
Motor Type - Stepper：-
Motor Type - AC, DC：Brushless DC (BLDC)
Function：Driver - Fully Integrated, Control and Power Stage
Output Configuration：Half Bridge (2)
Interface：On/Off
Technology：Power MOSFET
Step Resolution：-
Applications：Fan Motor Driver
Current - Output：-
Voltage - Supply：1.8V ~ 5V
Voltage - Load：1.8V ~ 5V
Operating Temperature：-40°C ~ 105°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-5 Thin, TSOT-23-5
Supplier Device Package：TSOT-25
Grade：-
Qualification：-

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AH5798-WTG-7

Overview

The AH5798-WTG-7 is a single-phase Hall effect latch smart fan motor controller by Diodes Incorporated. It integrates a full-bridge driver with soft switching to minimize audible noise and electromagnetic interference for single-coil brushless DC fans. The device operates within a supply voltage range of 1.8V to 5.5V and features built-in rotor lock protection that shuts down outputs upon detection and automatically restarts when cleared. Thermal protection is included, alongside an open-drain frequency generator output for monitoring rotation speed.

Feature Summary

Integrates a Hall sensor and input amplifier for single-coil full-wave DC fan drivers
Utilizes soft switching technology to reduce audible noise and electromagnetic interference
Provides automatic restart capability following rotor lock protection shutdown events

Applications

Single-coil brushless direct current (BLDC) fan drivers
Smart fan motor control systems
Low noise DC fan motor applications

Procurement Notes

Verify the specific package designation TSOT25 against the required board layout dimensions prior to ordering. Confirm that the operating voltage range of 1.8V to 5.5V aligns with the system power supply specifications. Ensure that the thermal management design accommodates the integrated over-temperature shutdown feature. Validate that the open-drain frequency generator interface matches the external monitoring circuit requirements for accurate speed feedback.

Selection Notes

Select this component for applications requiring low acoustic noise in single-coil BLDC fan drives due to its soft switching architecture. The integrated Hall sensor simplifies design by eliminating external sensing components. Consider the TSOT25 package for space-constrained layouts. Verify compatibility with the 1.8V to 5.5V supply range and ensure the system can handle the automatic restart behavior associated with rotor lock conditions.

Part Context

The AH5798-WTG-7 belongs to the AH5798 series of smart fan motor controllers from Diodes Incorporated. This series provides a complete single-chip solution for driving single-coil brushless DC motors. The WTG suffix indicates the specific TSOT25 surface-mount packaging variant, distinguishing it from other package options like SOT89-5L within the same functional family.