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ALLEGRO A4955GESTR-T product image
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ALLEGRO A4955GESTR-TRoHS

Manufacturer
ALLEGRO
MPN
A4955GESTR-T
LCSC Part #
C5204686
Packaging
QFN-20-EP(4x4)
Customer #
Key Attributes
Full-bridge PWM gate driver
Datasheetpdf iconALLEGRO A4955GESTR-T

Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Motor Drivers, Controllers
ManufacturerALLEGRO
PackagingQFN-20-EP(4x4)
Driven ConfigurationFull-Bridge
FeaturesUnder Voltage Protection;Enable shutdown;Overtemperature protection (OTP);Dead-time control;Interleaved conduction protection;Charge pump boost
Number of Channels2
Propagation Delay tpHL-
Operating temperature-40℃~+105℃
Quiescent Current(Iq)-
Load TypeMOSFET
Input Logic Level - High2V
Current - Output High(IOH)30mA
Propagation Delay tpLH-
Current - Output Low(IOL)68mA
Voltage - Supply5.5V~50V
Input Logic Level - Low800mV
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging1500
Sales UnitPiece

Introduction

AI Translation

Designed for pulse-width-modulated (PWM) control of DC motors, the A4955 is capable of 50 V operation and provides gate drive for an all N-channel external MOSFET bridge. Input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals. Internal synchronous rectification control circuitry is provided to lower power dissipation during PWM operation. Internal circuit protection includes VDS protection, thermal shutdown with hysteresis, undervoltage monitoring of VBB, and crossover-current protection. The A4955 is supplied in a low-profile 4×4 mm, 20-contact QFN package (suffix “ES”) and a 20-lead eTSSOP (suffix “LP”), both with exposed thermal pad.

The A4955 is designed to operate DC motors. The output drivers are capable of 50 V with gate-driver capability for an all N-channel external MOSFET H-bridge. Control logic includes synchronous rectification to reduce power dissipation. Current limit is regulated by fixed off-time pulse-width-modulated (PWM) control circuitry.

Features

AI Translation
  • Standard IN1/IN2 control logic
  • Overcurrent indication
  • Adjustable off-time and blank-time
  • Adjustable current limit
  • Adjustable gate drive
  • Synchronous rectification
  • Internal UVLO
  • Crossover-current protection
  • MOSFET VDS protection
  • Voltage output proportional to load current
In-Stock: 7,003
7,003 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 2.2291$ 2.23
10+$ 1.8106$ 18.11
30+$ 1.5481$ 46.44
100+$ 1.066$ 106.60
500+$ 0.9451$ 472.55
1,500+$ 0.891$ 1336.50
Standard Packaging1500/Full Reel
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