AM9468

Document number: DS38663 Rev. 1 - 2

3 of 16

www.diodes.com

May 2016

© Diodes Incorporated

AM9468

Pin Descriptions

Pin Number

Pin Name

Description

1

OUT1

Output drive - source & sink capable pin

2

Power supply input pin

3

REGH

High side regulator output voltage

4

5VREG

5V regulator output voltage

5

VCONT

Output duty control pin in DC signal speed control mode; Voltage in VCONT is compared with triangular wave

on CPWM for the output duty ratio.

6

RMI

Output minimum duty (minimum speed) control pin for CPWM

7

FG

Frequency Generator (FG) - The FG output is same as the magnetic change frequency

8

RG

Rotor lock detect open drain output

9

HIN+

Hall device positive input pin

10

HB

Hall bias voltage

11

HIN-

Hall device negative input pin

12

CPWM

Capacitor connection pin for PWM oscillator and main clock

13

PWM

PWM signal input pin for PWM speed control mode. The PWM on this pin controls the output duty directly.

14

GND

Ground pin

15

RF

16

OUT2

Output drive - source & sink capable pin

Functional Block Diagram

1

2

3

4

5

6

7

8

15

16

14

13

12

11

10

9

GND

RF

CPWM

RMI

FG

RD

OUT1

+

+

-

-

High Side

Regulator

Low Side

Regulator

Bias

Generate

Level Shift

OUT2

OSC&

Clock

PWM

Logical Control

Centre

HB

HIN+

HIN-

HB

TBD

REGH

5VREG

VCONT