www.fairchildsemi.com

Rev. 1.0.1

Features

Capstan motor drive block
· 3-phase, linear BLDC motor driver with 3 hall sensors.
· Built-in FG amplifier.
· Forward and reverse rotation function.
· Built-in amplitude limiter.

Drum motor drive block
· 3-phase soft commutating sensor less drive method.
· Built-in FG amplifier.
· Built-in PG amplifier.

Loading motor drive block
· Single phase H-bridge driving method.
· 4-mode selection function(forward, reverse,

brake,standby).

Common block
· Built-in TSD(thermal shut down)
· Built-in 4-normal op-amp.

Description

The FAN8434 is a camcorder one-chip motor driver IC. It is
composed of capstan motor driver , drum motor driver and
loading motor driver.

64-LQFP-1010

FAN8434

Camcorder 3 in 1 Motor Driver

Typical Applications

· Camcorder

Ordering Information

Notes:

1. X: Tape & Reel
2. NL: Lead-free type

Device

Package

Operating

Temp.

FAN8434

64-LQFP-1010

-25°C ~ +75°C

FAN8434_NL

note2

64-LQFP-1010

-25°C ~ +75°C

FAN8434X

note1

64-LQFP-1010

-25°C ~ +75°C

FAN8434X_NL

note2

64-LQFP-1010

-25°C ~ +75°C

FAN8434

Pin Assignments

FAN8434

D_FGIN

VREF

D_PGIN

D_PGC

D_PGOUT

GND

D_WIN

D_VIN

D_UIN

D_COM

VCC1

FC2

FILTER

FC1

OSC

D_FR

I
N

FWD

REV

I
N

SELC

I
N

HU-

HU+

C_WOUT

C_RS

C_VOUT

C_STBY

C_UOUT

D_WOUT

D_RS

D_VOUT

D_UOUT

D_VM

L_OUT2

L_RS

L_OUT1

L_ILIM

HV+

HV-

HW+

HW-

I
N

FAN8434

Pin Definitions

Pine Number

Pin Name

I/O

Pin Function Description

OPIN3-

OP amp. 3 input -

OPOUT3

OP amp. 3 output

FWD

Loading motor forward input

REV

Loading motor reverse input

L_VM

Loading motor power supply voltage

OPIN1-

OP amp. 1 input -

OPIN1+

OP amp. 1 input +

OPOUT1

OP amp. 1 output

OPOUT2

OP amp. 2 output

OPIN2+

OP amp. 2 input +

OPIN2-

OP amp. 2 input -

SELCSLP

Selection pin for oscillator 's slant

CSC1

Drum motor soft commutating oscillation 1

CSC2

Drum motor soft commutating oscillation 2

OPIN4-

OP amp. 4 input -

OPOUT4

OP amp. 4 output

D_FR

Drum motor forward / reverse selection pin

OSC

Drum motor start up oscillation

FC1

Frequency characteristic

FILTER

Drum motor torque ripple compensation

FC2

Output midpoint control

VCC1

Power supply voltage 1

D_MCOM

Drum motor Y-connection coil common input

D_UIN

Drum motor U-phase detect comparator input

D_VIN

Drum motor V-phase detect comparator input

D_WIN

Drum motor W-phase detect comparator input

GND

Signal ground

D_PGOUT

Drum motor PG comparator output

D_PGC

Drum motor PG amp. output

D_PGIN

Drum motor PG input

VREF

Reference voltage

D_FGIN

Drum motor FG input

FAN8434

Pin Definitions

(Continued)

Pine Number

Pin Name

I/O

Pin Function Description

D_FGIN1

Drum motor FG input 1

D_STBY

Drum motor standby

D_FGOUT

Drum motor FG comparator output

C_FGOUT

Capstan motor FG comparator output

C_FGIN-

Capstan motor FG input-

C_FGIN+

Capstan motor FG input+

ANGLE

Capstan motor output slant selection

C_FR

Capstan motor forward / reverse selection

VCC2

Power supply voltage 2

VH-

Hall bias supply voltage-

VH+

Hall bias supply voltage+

C_VM

Capstan motor power supply voltage

HW-

Capstan motor hall input W-

HW+

Capstan motor hall input W+

HV-

Capstan motor hall input V-

HV+

Capstan motor hall input V+

HU-

Capstan motor hall input U-

HU+

Capstan motor hall input U+

C_WOUT

Capstan motor output W

C_RS

Capstan motor power ground

C_VOUT

Capstan motor output V

C_STBY

Capstan motor standby

C_UOUT

Capstan motor output U

D_WOUT

Drum motor output W

D_RS

Drum motor output current sensing

D_VOUT

Drum motor output V

D_UOUT

Drum motor output U

D_VM

Drum motor power supply voltage

L_OUT2

Loading motor output 2

L_RS

Loading motor output current sensing

L_OUT1

Loading motor output 1

L_ILIM

Loading motor output current limiting

FAN8434

Internal Block Diagram

GND

TIMING

CONTROL

SOFT-

COMMUTATING

DRIVE

START-UP
CONTROL

FC2

CSC2

FILTER

SELCSLP

D_RS

D_UOUT

D_VOUT

D_WOUT

D_VM

D_COM

D_UIN

D_VIN

D_WIN

BACK-EMF

DETECT

OUTPUT

DRIVER

Mid Point

CONTROL

OSC

CSC1 13

D_FR 17

Forward/Reverse

D_STBY

Drum

bias circuit

VCC1

MASKING

VCC1

FC1

C_STBY

Capstan

bias circuit

VCC1

Hall power

supply voltage

VH+

VH-

C_FGIN+

C_FGIN-

C_FGOUT

VCC1

OPI

OPO

IN2+

IN2-

OUT2

10 11 9

OPIN3-

OPOUT3

VCC1/2

OPIN4-

OPOUT4

VCC1/2

TSD

Reference

Voltage

VCC1

D_F

GOUT

D_FGI

D_PG

D_P

GOUT

C_RS

MATRIX

LOGIC

OUTPUT

DRIVER

C_UOUT

C_VOUT

C_WOUT

HU+

HU-

HV+
HV-

HW+
HW-

C_FR

CVM

Upper/Lower

amplitude limiter

TSD

ANGLE 39

OUTPUT

DRIVER

MODE

SELECTION

TSD

FWD

L_VM

L_OUT1

L_OUT2

REV

L_ILIM

VCC1

FAN8434

Absolute Maximum Ratings (Ta=25

°C)

Notes:
1. 1) When mounted on glass epoxy PCB (76

× 114 × 1.6mm)

2) Power dissipation is reduced at the rate of -4.8mW/

°C for T

°C.

3) Do not exceed Pd and SOA(Safe Operating Area).

Power Dissipation Curve

Recommended Operating Conditions (Ta=25

°C)

Notes:
2. Conditions: VCC1

VCC2

3. Conditions: C_VM

VCC2, D_VM

VCC2, L_VM

VCC2

Parameter

Symbol

Value

Unit

Remark

Maximum IC supply voltage 1

VCC1

max

7.0

VCC1

VCC2

Maximum IC supply voltage 2

VCC2

max

8.5

Maximum capstan motor supply voltage

C_VM

max

7.0

C_VM

VCC2

Maximum drum motor supply voltage

D_VM

max

7.0

D_VM

VCC2

Maximum loading motor supply voltage

L_VM

max

7.0

L_VM

VCC2

Maximum capstan motor output current

ICO

max

1.0

VCC2=7V, C_VM=7V

Maximum drum motor output current

IDO

max

1.0

VCC2=7V, D_VM=7V

Maximum loading motor output current

ILO

max

0.6

VCC2=7V, L_VM=7V

Power dissipation

0.6

note1

Individual

Junction temperature

150

°C

VCC2=7V, VM=7V

Operating temperature

TOPR

-25 ~ +75

°C

Storage temperature

TSTG

-55 ~ +150

°C

Parameter

Symbol

Value

Units

IC supply voltage1

VCC1

note2

2.7 ~ 6

IC supply voltage2

VCC2

3.5 ~8.5

Capstan motor supply voltage

C_VM

note3

0 ~ 7.0

Drum motor supply voltage

D_VM

note3

0 ~ 7.0

Loading motor supply voltage

L_VM

note3

0 ~ 7.0

0.6

150

Ambient temperature, Ta [

°C]

SOA

Power dissipation (W)

FAN8434

Electrical Characteristics

(VCC1=3V, VCC2=4.75V,C_VM=1.5V, D_VM=L_VM=3V, DRS=0.25

, Ta=25

°C, unless otherwise specified)

(*note) Guaranteed field ( No EDS / Final test )

Parameter

Symbol

Conditions

Min.

Typ.

max.

Unit

VCC1 power supply current1

ICC1

IOUT=100mA,VC_STBY=3V

VCC2 power supply current2

ICC2

IOUT=100mA,VC_STBY=3V

VCC1 Idle current

ICC1Q

VC_STBY=0V

2.1

VCC2 Idle current

ICC2Q

VC_STBY=0V

100

µA

VM Idle current

IVMQ

VC_STBY=0V

100

µA

CAPSTAN MOTOR BLOCK
Upper side saturation voltage1 VCSATH1 Io=0.2A, VC_STBY=3V

0.22

0.29

Lower side saturation voltage1 VCSATL1 Io=0.2A, VC_STBY=3V

0.20

0.25

Upper side saturation voltage2 VCSATH2 Io=0.5A, VC_STBY=3V

0.25

0.4

Lower side saturation voltage2 VCSATL2 Io=0.5A, VC_STBY=3V

0.25

0.4

Output saturation voltage

VCOSAT Io=0.8A, Sink+Source

1.4

Overlap amount

note

O.L

RL=39

*3,Range=20K

HALL AMPLIFIER
Input offset voltage

note

VHOFF

C_RS=0.5

, CCTL=5V

-5

Common mode input range

VHCM

Rangle=20K

0.95

2.1

Voltage gain

VHGM

Rangle=20K

STANDBY PIN
High level voltage

VCSTH

2.5

VCC1

Low level voltage

VCSTL

-0.2

0.7

Input current

ICSTIN

VC_STBY=3V

µA

Leakage current

ICSTLK

VC_STBY=0V

-30

µA

FR PIN
High level voltage

VCFRH

2.5

VCC1

Low level voltage

VCFRL

-0.2

0.7

Input current

ICFRIN

VC_STBY=3V

µA

Leakage current

ICFRLK

VC_STBY=0V

-30

µA

HALL BIAS
Hall power supply voltage

VHALL

IH=5mA,VH(+)-VH(-)

0.55

0.65

0.75

(-)pin voltage

VH-

IH=5mA

0.86

0.93

1.00

FG COMPARATOR
Input offset voltage

VFGOFF

-3

Input bias current

IFG

VFGIN+=VFGIN-=1.5V

500

Input bias current offset

IFG

VFGIN+=VFGIN-=1.5V

-100

100

Common mode input range

VFGCM

1.2

2.5

High level output voltage

VFGOH

Internal pull-up

2.8

Low level output voltage

VFGOL

Internal pull-up

0.2

Voltage gain

note

VFGGM

100

Output current(sink)

IFGOS

Outpin="L"

100

µA

FAN8434

Electrical Characteristics

(Continued)

(VCC1=3V, VCC2=4.75V,C_VM=1.5V, D_VM=L_VM=3V, DRS=0.25

, Ta=25°C, unless otherwise specified)

(*note) Guaranteed field ( No EDS / Final test )

Parameter

Symbol

Conditions

Min.

Typ.

max.

Unit

DRUM MOTOR BLOCK

Power supply current3

ICC3

Io=76mA,VD_STBY=3V,
VC_STBY=0V

0.75

2.5

Output Idle current4

ICC4Q

VD_STBY=0V,VC_STBY=0V

100

µA

Output Idle current5

ICC5Q

VD_STBY=0V,VC_STBY=0V

100

300

µA

Upper side saturation voltage1

VSATH3

Io=0.1A, RS=0.25

0.3

0.5

Lower side saturation voltage1

VSATL3

Io=0.1A, RS=0.25

0.3

0.5

Upper side saturation voltage2

VSATH4

Io=0.4A, D_VM=3V,RS=0.25

0.5

0.8

Lower side saturation voltage2

VSATL4

Io=0.4A, D_VM=3V,RS=0.25

0.5

0.8

COM pin common mode input
range

VIC

0.3

VCC2-

0.9

STANDBY PIN
High level voltage

VDSTH

2.0

VCC1

Low level voltage

VDSTL

-0.2

0.7

Input current

IDSTIN

VD_STBY=3V

µA

Leakage current

IDSTLK

VD_STBY=0V

-10

µA

FR PIN
High level voltage

VDFRH

2.0

VCC1

Low level voltage

VDFRL

-0.2

0.7

Input current

IDFRIN

VC_STBY=3V

µA

Leakage current

IDFRLK

VC_STBY=0V

-10

µA

OSCILLATOR
Source current ratio

note

RSOUR

ICSC1SOUR/ICSC2SOUR

-15

+15

Sink current ratio

note

RSINK

ICSC1SINK/ICSC2SINK

-15

+15

CSC1 source/sink current
ratio

note

RCSC1

ICSC1SOUR/ICSC1SINK

-35

+15

CSC2 source/sink current
ratio

note

RCSC2

ICSC2SOUR/ICSC2SINK

-35

+15

Startup frequency

note

Freq

COSC=0.1

µF, OSC freq.=target

12.5

Phase delay-width

note

Target

deg

SELCSLP PIN
High level voltage

VSELH

2.0

VCC1

Low level voltage

VSELL

-0.2

0.7

Input current

ISELH

VSELCSLP=3V

µA

Leakage current

ISELLK

VSELCSLP=0V

-10

µA

FAN8434

Electrical Characteristics

(Continued)

(VCC1=3V, VCC2=4.75V,C_VM=1.5V, D_VM=L_VM=3V, DRS=0.25

, Ta=25°C, unless otherwise specified)

(*note) Guaranteed field ( No EDS / Final test )

Parameter

Symbol

Conditions

Min.

Typ.

max.

Unit

DRUM MOTOR BLOCK
FG AMP. & COMPARATOR
Input offset voltage

note

VDFGOF

±1

±5

Input bias current

note

IDFG

250

Common mode input voltage
range

note

VICOM

1.0

2.0

Open loop gain

note

DFGGM

f=1KHz

Output on voltage

VFGOL

Io=10

µA

0.4

Output off voltage

VFGOH

Io=10

µA

VCC1-

0.5

Schmitt amplifier hysteresis
width

note

VFGHYS

Reference voltage

VREF

1.15

1.30

1.45

PG AMP. & COMPARATOR
Input offset voltage

note

VDPGOF

±1

±5

Input bias current

note

IDPG

250

Common mode input voltage
range

note

VICOM

1.0

2.0

Open loop gain

note

DPGGM

f=1KHz

Output on voltage

VPGOL

Io=10

µA

0.4

Output off voltage

VPGOH

Io=10

µA

VCC1-

0.5

Schmitt amplifier hysteresis
width

note

VPGHYS

FAN8434

Electrical Characteristics

(Continued)

(VCC1=3V, VCC2=4.75V,C_VM=1.5V, D_VM=L_VM=3V, DRS=0.25

, Ta=25°C, unless otherwise specified)

(*note) Guaranteed field ( No EDS / Final test )

Parameter

Symbol

Conditions

Min.

Typ.

max.

Unit

LOADING MOTOR BLOCK

VCC1 power supply current1

ICC6

VC_STBY=VD_STBY=0V,
FWD=REV="L"

2.1

4.0

VCC1 power supply current2

ICC7

VC_STBY=VD_STBY=0V,
FWD="H",REV="L" or
FWD="L",REV="H"

VCC1 power supply current3

ICC8

VC_STBY=VD_STBY=0V,
FWD=REV="H"

VCC2 power supply current1

ICC9

VC_STBY=VD_STBY=0V,
FWD=REV="L",VCC1=open

100

µA

VCC2 power supply current2

ICC10

VC_STBY=VD_STBY=0V,
FWD=REV="L",VCC1=3.0V

100

µA

VCC2 power supply current3

ICC11

VC_STBY=VD_STBY=0V,
FWD="H",REV="L" or
FWD="L",REV="H"

L_VM power supply current

IL_VM

VC_STBY=VD_STBY=0V,
FWD=REV="L"

µA

FWD/REV PIN
High level input voltage

VINH

VCC1=2.7 to 4.0V

2.0

VCC1

High level input current

IINH

VIN=3.0V

µA

Low level input voltage

VINL

VCC1=2.7 to 4.0V

-0.2

0.6

Low level input current

IINL

VIN=0.6V

µA

OUTPUT
Output saturation voltage1

VLSAT1

Io=200mA,Upper+Lower

0.2

0.3

Output saturation voltage2

VLSAT2

Io=400mA,Upper+Lower

0.4

0.6

NORMAL OPAMP
Input offset voltage

VIOFF

±1

±5

Input bias current

µA

Common mode input voltage
range

VICM

1.0

2.0

Open loop gain

GM1

THERMAL SHUTDOWN
TSD operating temperature

note

TSD

160

°C

TSD Hysteresis

note

HTSD

°C

FAN8434

Application Information

1. Capstan Motor Driver Truth Table

Notes:
1. C_FR "H" is above 2.5V, C_FR "L" is below 0.4V.
2. Hall input "H" is that input(+) is higher than input(-) 0.02V over.

Hall input "L" is that input(+) is lower than input(-) 0.02V over

2. Loading Motor Truth Table

Source

Sink

Hall input

C_FR

Input

Output

Mode

FWD

REV

LOUT1

LOUT2

OFF

Standby

Forward

Reverse

Brake

FAN8434

Test Circuits

358

12V

f = 210Hz

10K

40K

10K

40K

33nF

A A

A V

1uF

33nF

0.1uF

100K

50K

0.6V

22nF

1.5V

L_VM

D_VM

1.5V

VCC1

FAN8434

D_FGIN

VREF

D_PGIN

D_PGC

D_PGOUT

GND

D_WIN

D_VIN

D_UIN

D_COM

VCC1

FC2

FILTER

FC1

OSC

D_FR

OPOU

REV

OPI

OPOU

OPI

LCSLP

OPI

HU-

HU+

C_WOUT

C_RS

C_VOUT

C_STBY

C_UOUT

D_WOUT

D_RS

D_VOUT

D_UOUT

D_VM

L_OUT2

L_RS

L_OUT1

L_ILIM

HW+

HW-

VH+

VH-

CC2

C_FGI

GOUT

Y D_FGIN1

OPIN3-

OPOUT4

FAN8434

Typical Application Circuits

VCC1

C_STBY

D_VM

VCC1

D_PGIN

D_FGOUT

VREF

GOUT

CC2

D_FGIN

FAN8434

D_FGIN

VREF

D_PGIN

D_PGC

D_PGOUT

GND

D_WIN

D_VIN

D_UIN

D_COM

VCC1

FC2

FILTER

FC1

OSC

D_FR

OPOUT3

REV

OPI

OPOUT1

OPOUT2

OPI

SLP

OPI

HU-

HU+

C_WOUT

C_RS

C_VOUT

C_STBY

C_UOUT

D_WOUT

D_RS

D_VOUT

D_UOUT

D_VM

L_OUT2

L_RS

L_OUT1

L_ILIM

ANG

_FGI

GOUT

D_FGIN1

OPIN3-

OPOUT4

FAN8434

2/4/04 0.0m 001

Stock#DSxxxxxxxx

2004 Fairchild Semiconductor Corporation

LIFE SUPPORT POLICY
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
CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure 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 support

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 effectiveness.

www.fairchildsemi.com

DISCLAIMER
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

LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER

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