Datasheet > AM4964

AM4964

更新时间： 2024-02-12 05:02:40

品牌	Logo	应用领域
美台 - DIODES		驱动
页数	文件大小	规格书
21页	1353K
描述
SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER

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中文翻译

获取价格

数据手册

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AM4964 数据手册

A Product Line of

Diodes Incorporated

AM4964

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER

Description

Pin Assignments

The AM4964 is highly integrated feature rich single phase Brushless

Direct Current (BLDC) full wave motor driver with combined PWM and

temperature speed control function for fans, blowers and extractors.

(Top View)

PGND

OUT2

VCC

For system flexibility, the motor speed can be controlled by an

external PWM signal and temperature sensed by Thermal resister at

the same time. Based on external input PWM and temperature

signals, the AM4964 adjusts the output PWM duty cycle. If the input

PWM duty is constant, the output PWM duty varies with temperature

sensed by Thermal resister sensor between the low and high

temperature corners. If the temperature signal is constant, the output

duty varies with the external input PWM duty. The low and high

temperature corners and the output PWM duty gap between these

temperature corners are adjustable

19 OUT1

VMIN

PWM

SGND

RADJ

IN-

IN+

To help protect the motor coil, the AM4964 provides a rotor lock

protection which shuts down the output if rotor lock is detected. The

device automatically re-starts when the rotor lock is removed.

AM4964 provides

a tachometer output Frequency Generator

(FG). The FG output is the magnetic change frequency.

The AM4964 is available in TSSOP-20EP package.

TSSOP-20EP

Features

Applications



Flexible Speed Control Options



CPU Cooler Fan in PC

Brushless DC Motor Driver



Combined PWM+Thermistor Speed Control

PWM Speed Control

DC Voltage Speed Control



Adjustable Low and High Temperature Corners

Full Speed When Thermal Resistor is Shorted

Adjustable Output Duty Gap between High and Low

Temperature when 100% PWM Input



Built-in oscillator – No external capacitor

Built-in Minimal Speed Setup Circuit

Alpha Slope Adjustable

Rotation Speed Indicator (FG)

Built-in Temperature Control Circuit

Built-in Thermal Shutdown Circuit

Lock Protection and Auto-restart

Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

1 of 21

www.diodes.com

June 2014

AM4964

Document number: DS37241 Rev. 2 - 2

12 3 4 5 6 7...21

中文翻译

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与AM4964相关器件

型号	品牌	获取价格	描述	数据表
AM4964GG	DIODES	获取价格	SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
AM4964GTR-G1	DIODES	获取价格	SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
AM4964NT	ANALOGPOWER	获取价格	N-Channel 60-V (D-S) MOSFET
AM4967	BCDSEMI	获取价格	ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR
AM4967	DIODES	获取价格	Single Phase BLDC Fan and Motor Pre-Driver with Adjustable Current Limit
AM4967GS	BCDSEMI	获取价格	ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR
AM4967GS-E1	BCDSEMI	获取价格	ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR
AM4967GS-G1	BCDSEMI	获取价格	ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR
AM4967GSTR-E1	BCDSEMI	获取价格	ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR
AM4967GSTR-G1	BCDSEMI	获取价格	ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR

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