5

SANKEN ELECTRIC CO., LTD.

LC5200-DS, Rev. 6.0

Off-Line LED Driver ICs

LC5200 Series

1

2

3

4

8

6

5

GND

VBB

OUT

REG

PWM

REF

SEN

1

2

3

4

8

7

6

5

GND

VBB

OUT

OUT

REG

PWM

REF

SEN

Pin-out Diagrams

DIP8

LC5200D Series

SOP8

LC5200S Series

Pin List Table

Name

Number

Function

LC52xxD

(DIP8)

LC52xxS

(SOP8)

REG

1

1

Internal regulator supply, provides current to internal and external circuits;

connect a 0.1 μF bypass capacitor between this pin and GND

PWM

2

2

Input for PWM control; to use internal PWM, connect a CR (capacitor and

resistor) for setting off-time; to use external PWM, connect to PWM signal

source

REF

3

3

Reference voltage input; sets peak output current of OUT pin (internal

power MOSFET) for internal PWM control by REF pin voltage

SEN

4

4

Output current detection; detects peak output current for internal PWM

control, and detects overcurrent for OCP; connect to current detection

OUT

5

5, 6

Drain of internal power MOSFET

VBB

6

7

Supply voltage; provides power to internal circuits through internal

regulator

–7

LC5200D DIP8 pin removed to increase creepage distance between high

votlage pin and low voltage pin (Note: apply user's criteria for creepage

distance when using LC5200S SOP8)

GND

8

8

Ground pin

Functional Block Diagram

When pin numbers of the SOP8 differ from those of the DIP8,

they are indicated in parentheses for the SOP8

REG

VBB

Regulator

Gate Driver

Current

Control

Logic

OCP

GND

UVLO

TSD

OUT

SEN

1

5 (5,6)

4

8

Control IC

6 (7)

2

3

PWM

REF