FAH4830 View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

View to exact match

FAH4830

Haptic Driver for DC Motors (ERMs) and Linear Resonant Actuators (LRAs)

Fairchild Semiconductor 

Register Definitions

Table 1. Control Registers and Default Values

Address

Register Name

0x20

CONTROL0

0x21

CONTROL1

0x22

Haptic_STAT

Type

R/W

R/W

R

Table 2. Control Register MAP (Control0, Control1, Status)

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Haptic_En ODRV_EN ODRVEN_HL MOT_TYP

Reserved

Input Resistance[7:5]

VLDO_OUT

Reserved[7:4]

VDD_G VREG_G

Notes:

4. Connect the bottom DAP to ground.

Reset Value

10010000

00101100

00001110

Bit1

Bit0

PWM_DIV

Reserved

OT

Reserved

Table 3. Control 0

 Address: 20h

 Reset Value: 1001_0000

 Type: Read/Write

 BOLD is default state

Bit # Name Size (Bits)

Description

7

Haptic_En

Haptic Drive Enable Mode

1

0: Power-Down Mode

1: Normal Operation Mode

6

ODRV_EN

Haptic Over-Drive Enable Mode (for ERM)

1

0: Disable Over Drive

1: Enable Over Drive

Selection of Over-Drive

5 ODRVEN_HL

1

0: Over-Drive LOW (GND RAIL)

1: Over-Drive HIGH (VDD RAIL)

4

MOT_TYP

Select Motor Type

1

0: LRA (Linear Resonant Actuator)

1: ERM (Eccentric Rotation Mass)

3:2

Reserved

2

Not used

1:0 PWM_DIV

Select PWM Divide

00: 1/1

2

01: 1/128

10: 1/256

11: 1/512

© 2012 Fairchild Semiconductor Corporation

FAH4830 • 1.0.1

8

www.fairchildsemi.com

Share Link: