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BD7690FJ-E2

Power Factor Correction Controller IC

ROHM Semiconductor 

BD7690FJ

Pin Configuration(s)

8

VCC

7

OUT

6

5

GND ZCD

BD7690FJ

VS

EO

RT

CS

1

2

3

4

Figure 2. Pin Configuration（Top View）

Pin Description(s)

Pin Name

VS

EO

RT

CS

ZCD

GND

OUT

VCC

Block Diagram(s)

FUSE

AC

85-

265Vac

Filter

Diode

Bridge

Table 1. Pin Description

I/O Pin No.

Function

I

1

Feedback input

I/O

2

Error amp output

I/O

3

Max frequency setting

I

4

Over current detection

I

5

Zero current detection

-

6

GND

O

7

MOSFET gate control

I

8

VCC

ESD Diode

VCC GND

-

○

-

○

-

○

-

○

-

○

○

-

-

○

-

○

VOUT

VS

VCC

GND

+

-

UVLO

13.0V/ 9.0V

BGR

BGRBUF

4.0V Reg

Internal

Supply

TSD

TSD

1shot

Timer

30us

out reset

0.67V/1.80V

ZCD

VS

RRT

VGUP Comp

+

-

2.25V

VS

ErrAmp

-

+

EO

2.5V

2.625V

DOVP Comp

+

-

0.3V

2.725V

SHORT Comp

+

SP

-

SOVP Comp

+

-

SOVP

UVLO 1.9V

RT

RT_H

1.15V

CS

RT_L

Comp

+

-

-

+ RT_H

RT_H

Comp

0.65V

ISOCP

+ Comp

-

OSC

EN

AND

PWM Comp

-

+

OR

S

Q

OR

R

UVLO

SOVP AND

SP

TSD

GCLAMP

(12V)

POUT

PRE

Driver

NOUT

100kΩ

OUT

Figure 3. Block Diagram

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TSZ22111 • 15 • 001

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TSZ02201-0F2F0A200280-1-2

27. Mar. 2017 Rev.002

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