www.fairchildsemi.com

Rev.1.0.0

Features

· Built-in DC Motor Driver

: For Film Winding & Zooming

· Voltage Controlled Stepping Motor Driver
· Built-in AE Meter Driver
· Built-in IRED Driver For Auto-Focus
· Low Drop out Regulator(5V/3V)
· Built-in step-up DC/DC Converter Controller

Description

The FAN8700 is a monolithic integrated circuit, and suitable
for the motor driver (AE, AF, zoom and reel motor driver)
and the controller ( IRED driver, supply , step-up converter
control, etc.) in camera systems.

32-LQFP-0707

FAN8700

Camera Motor Drive and Control IC

Typical Applications

· Camera system

Ordering Information

Device

Package

Operating Temp.

FAN8700

32-LQFP-0707

-20

C ~ +60

FAN8700

Pin Definitions

Pin Number

Pin Name

Pin Function Description

SEL

IC Enable Input

CTL

Operating Mode Control Input1

CTL

Operating Mode Control Input2

CTL

Operating Mode Control Input3

PGND

Power Ground

Power V

PGND

Power Ground

Stepping Motor Output3

Stepping Motor Output4 /AE Meter Output

Stepping Motor Output5 /AE Meter Output

Stepping Motor Output2

Stepping Motor Output1

PGND

Power Ground

No Connection

DC Motor Output 3

DC Motor Output 2

DC Motor Output 1

PGND

Power Ground

FMO

Step-up Converter Switching Output

Power V

Signal V

IRO

IRED drive output

FBR

IRED Drive Current Setting Input

FMI

Step-up converter switching Clock input

DAT

Each Mode Output Control Input1

DAT

Each Mode Output Control Input2

RBT

Voltage Divided Output

SGND

Signal Ground

Low Drop-out Regulator Output

Setp-up Output Voltage Feedback Input

Low Drop-out Regulator Output

VSM

Stepping Motor Output Voltage Control Input

FAN8700

Equivalent Circuits

Description

Pin No.

Internal Circuit

1.5-Channel DC Motor Drive Block

SEL 1

CTL

2~4

DAT

25,26

PVE

6,20

P_GND

5,7,13,18

Step-up Control Block

SEL 1

CTL

2~4

DAT

25,26

P_GND

5,7,13,18

IRED Drive Block

SEL 1

CTL

2~4

DAT

25,26

IRO

FBR

DC Motor Control

Block

CTL1~CTL3

DAT1~DAT2

P_VE

P_GND

CTL1

CTL2
CTL3

DAT1
DAT2

DM1

DM2

DM3

SM4

P_VE

Step Motor

Control Block

CTL1~CTL3

DAT1~DAT2

CTL1

CTL2
CTL3

DAT1

DAT2

VSM

P_GND

SM2

SM1

SM5

SM3

IRO

FBR

IRED Control Block

CTL1~3

DAT1~2

CTL1

CTL2
CTL3

DAT1
DAT2

FAN8700

Equivalent Circuits

(Continued)

Description

Pin No.

Internal Circuit

Step-up Control Block

SEL

FMI

VDI

FMO

P_GND

5, 7, 13, 18

Regulator Block

SEL

VCC

VDD

P_GND

5, 7, 13, 18

RBT Block

SEL

RBT

P_GND

5, 7, 13, 18

FMI

VDI

Vref

P_GND

FMO

INTERNAL

REFERENCE

VOLTAGE

VDD

VCC

RBT

PVE

FAN8700

Absolute Maximum Ratings (Ta=25

°
°
°
°

Power Dissipation Curve

Note:

1. PCB Information (Ref. EIA/JSED51-3 and EIA/JSED51-7)
2. Board Layer : 1 Layer
3. Board Thickness : 1.6mm
4. Board Dimension : 76.2 X 114.3 mm

Recommended Operating Conditions (Ta = 25

°
°
°
°

Parameter

Symbol

Value

Unit

Remark

Supply voltage

4.5

output current

VCC

output current

VDD

Stepping motor output current

SM1,2,3,4,5

500

DC motor output current

2000

500ms

IRED output current

IRED

2000

(3000mA/10mS)

Output terminal voltage

OUT

5.5

500us

Input terminal voltage

5.5

Power dissipation

1.9

Thermal resistance

Rja

C/W

Operating temperature range

OPR

-20 ~ +60

Storage temperature range

STG

-55 ~ +125

Parameter

Symbol

Min.

Typ.

Max.

Unit

Operating supply voltage

2.0

4.0

Power dissipation (W)

1.9

150

Ambient temperature, Ta (

FAN8700

Electrical Characteristics

(Ta = -20

C ~ 60

C, V

= 2V)

Block

Characteristics

Symbol

Condition

Min. Typ. Max.

Unit

Total

Leakage Current

STB

= 4.0V,V

SEL

= 0V

1.0

Input Threshold Voltage

0.75 1.1

1.5

Input High Current

= 3V

150

Step-up

DC-DC

CONVERTER

Minimum Operating Voltage

OPR1

1.0

Step-up Output Voltage 1

VDI1

LOAD

=100mA

5.3

5.5

5.7

Step-up Output Voltage 2

VDI2

LOAD

=100mA

8.3

8.6

8.9

FMO Output Voltage 1

SAT1/1

LOAD

=700mA

0.3

FMO Output Voltage 2

SAT1/2

LOAD

=1000mA

0.4

FMI Step-up Clock Range

156 313

KHz

Regulator

Output Voltage

VDD

=60mA

2.85 3.0 3.15

Drop-out Voltage

SAT2/1

VDD

=60mA,V

=2V

0.3

Output Voltage

VCC

=40mA

4.8 5.00 5.2

Drop-out Voltage

SAT2/2

VCC

=40mA,V

=3V

0.3

RBT

Minimum Operating Voltage

OPR3

1.5

Stand-by Output Voltage

STB

=4V,V

SEL

=0V -

0.1

Output Voltage

RBT

0.47 0.5 0.53

Output Voltage Temperature
Coefficient

2.0

mV/

DC Motor

Minimum Operating Voltage

OPR4

1.0

Output Saturation Voltage

SAT4

=1.6V,I

=400mA

0.45

Step motor

Driver

Minimum Operating Voltage

OPR5

1.6

Output Saturation Voltage

VSAT5

=2.6V,I

500

0.7

Output Voltage Relative
Difference

=2.6V

=1.0V,R

=10

1~2

,SM

3~4

-0.1

0.1

Output Voltage 1
(Output Pin to Ground)

=2.6V,R

=10

=1.0V

,SM

1.9

2.0

2.1

Output Voltage 2
(Output Pin to Ground)

=2.6V,R

=1.0V

,SM

1.85 1.95 2.05

Ired

Minimum Operating Voltage

OPR6

1.5

Output Saturation Voltage

SAT6

IRED

=1000mA

1.0

Output Current

IRED

RFBR=0.3

0.9

1.0

1.1

FAN8700

Control Code Table

Mode

Sel

Ctl

Dat

Output Port

Remark

Stepping

Motor

Drive

SM4 SM5

Ae Meter

Drive

OFF OFF

Ired

5.5V Step-up

8.6V Step-up

Ired On Step-up Off

5.5VStep-up

CTL DM

Dcmotor1

Control

OFF OFF OFF

OFF

CCW

OFF

Brake

Dcmotor2

Control

OFF OFF OFF

OFF

CCW

OFF

Brake

FAN8700

Test Circuits

FAN8700

SEL

CTL1

CTL2

CTL3

PGND

PVE

PGND

SM3

SM4

SM5

SM2

SM1

PGND

DM3

DM2

FMI

FBR

IRO

SVE

PVE

FMO

PGND

DM1

VSM

VDD

VDI

VCC

SGND

RBT

DAT2

DAT1

sw3

sw2

sw4

100

10k

sw5

10k

H
L

sw6

10k

100

10k

sw7

sw8

M
L

100

10k

sw9

10k

sw10

0.2

VDI

GND

VIN

100

0.25

sw11

VDI

VIN

10k

sw1

10k

100

FAN8700

Typical Application Circuits 1

FAN8700

Film

Zoom

Actuator

Shutter

CPU

SEL

CTL1

CTL2

CTL3

PVE

SM3

SM4

SM5

SM2

SM1

DM3

DM2

DM1

FMO

PVE

SVE

IRO

FBR

FMI

DAT1

DAT2

RBT

VCC

VDD

VDI

VSM

PVE&SVE IS

CONNECTED BATTERY

IRED

PG&SG IS

CONNECTED GROUND

FAN8700

Typical Application Circuits 2

FAN8700

Iris

Zoom

Actuator

Shutter

CPU

SEL

CTL1

CTL2

CTL3

PVE

SM3

SM4

SM5

SM2

SM1

DM3

DM2

DM1

FMO

PVE

SVE

IRO

FBR

FMI

DAT1

DAT2

RBT

VCC

VDD

VDI

VSM

PVE&SVE IS

CONNECTED BATTERY

LED

PG&SG IS

CONNECTED GROUND

FAN8700

4/17/02 0.0m 001

Stock#DSxxxxxxxx

" 2002 Fairchild Semiconductor Corporation

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FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR

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which, (a) are intended for surgical implant into the
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ure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of

the user.

2. A critical component in any component of a life sup-

port
device or system whose failure to perform can be
reasonably expected to cause the failure of the life
support device or system, or to affect its safety or ef-
fectiveness.

www.fairchildsemi.com

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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY

PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY

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