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Data Sheet

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962

Apr. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited

1

General Description

The AM4962 is a full wave driver IC with direct

PWM control function. It is used for single phase

motor and is capable of speed control by PWM pulse.

The AM4962 is available in HTSSOP-14 and

SSOP-16 packages.

Features

•

The Motor Speed is Controlled by PWM Pulse

Directly

• Built-in Triangle Wave Circuit Without Extra

Oscillation Capacitor

• Built-in Hall Bias Circuit

• Built-in Minimal Speed Setup Circuit

• Slope K* Adjustable

• Rotation Speed Indication (FG)

• Rotation or Lock State Indication (RD)

• Built-in Thermal Shutdown Circuit

• Lock Protection and Auto-restart

• Output Current Limit

* Slope K is the slope of output PWM duty vs. input

PWM duty

Applications

• CPU Cooler Fan in PC

• Brushless DC Motor Driver

Figure 1. Package Types of AM4962

HTSSOP-14 SSOP-16

1 2 3 4 5 6 ... 15 16

Inhaltsverzeichnis

Seite 1

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 2 - Pin Configuration

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 3 - HTSSOP-14 SSOP-16

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 4 - Truth Table (Note 1)

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 5

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 6

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 7 - Electrical Characteristics

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 8 - Package: HTSSOP-14

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Seite 9 - Package: SSOP-16

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 10

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 11 - Min. Duty Cycle

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 12 - R1, R2, R3, R4, R5, R6 Open

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 13

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 14 - Mechanical Dimensions

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 15

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

Seite 16

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 Apr.

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