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WIN SEM I

M ICROELECTRON ICS

WIN SEM I

M ICROELECTRON ICS

WIN SEM I

M ICROELECTRON ICS

WIN SEM I

M ICROELECTRON ICS

WIN SEM I

M ICROELECTRON ICS

Pin

Pin

Pin

Pin Definition

Definition

Definition

Definition and

and

and

and Device

Device

Device

Device Marking

Marking

Marking

Marking

WS2580 is available in SOT23-6 package:

Pin

Pin

Pin

Pin Function

Function

Function

Function Description

Description

Description

Description

Pin Name

Pin Number

Function Description

OUT

1

Drive output. Connects to the power MOSFET

GND

2

Ground.

VCC

3

Power supply.

CS

4

Current sense input.

CPC

5

Cable voltage compensation input pin, connects to an external filter capacitor

FB

6

Feedback input

Block

Block

Block

Block Diagram

Diagram

Diagram

Diagram

80: WSXX80;

Y: Year 2=2012，

M:Month 1,2…A=10,B=11,C=12

F: Factory No.

O U T

G N D

V C C

F B

C P C

C S

1

1

2

3

6

5

4

.80 YMF

C P C

V C C

F B

C S

O U T

G N D

E A

Z C D

偿

波

6

5

偿

恒 压 控 制

恒 流 控 制

p f m

To n s

Dectector

T O N S

4

0 . 5 V

0 . 4 V

P r e - OC P

C V

C C

R

Q

Q

S

R

Q

Q

S

3

Regulator

&

B I A S

V D D _ 5 V

p f m

D R IV E R

1

2