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SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961

Data Sheet

May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited

General Description

The AM4961 is a full wave driver IC with PWM con-

trol function. It is used for single phase motor and is

capable of speed control by changing output duty

cycle.

The AM4961 is available in SSOP-16 and HTSSOP-

14 packages.

Features

· Built-in Hall Bias Circuit

· Built-in PWM Speed Control Circuit

· Built-in Minimal Speed Setup Circuit

· Rotation Speed Indication (FG)

· Rotation or Lock State Indication (RD)

· Built-in Thermal Shutdown Circuit

· Lock Protection

· Output Current Limit

Application

· CPU Cooler Fan in PC

· Brushless DC Motor Driver

Figure 1. Package Types of AM4961

SSOP-16

HTSSOP-14

1 2 3 4 5 6 ... 13 14

Shrnutí obsahu

Strany 1

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet1May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Lim

Strany 2 - Pin Configuration

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet10May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Li

Strany 3 - Pin Description

Data Sheet11May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER

Strany 4 - Functional Block Diagram

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet12May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Li

Strany 5 - Ordering Information

Data Sheet13May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER

Strany 6

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Strany 7 - Electrical Characteristics

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet2May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Lim

Strany 8

Data Sheet3May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER A

Strany 9

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet4May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Lim

Strany 10 - Operating Diagram

Data Sheet5May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER A

Strany 11 - Typical Application

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet6May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Lim

Strany 12 - SSOP-16 Unit: mm(inch)

Data Sheet7May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER A

Strany 13 - HTSSOP-14 Unit: mm(inch)

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet8May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Lim

Strany 14

Data Sheet9May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER A

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