TDA16847(2000) 查看數據表（PDF） - Infineon Technologies

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TDA16847
(Rev.:2000)

Controller for Switch Mode Power Supplies Supporting Low Power Standby and Power Factor Correction

Infineon Technologies 

TDA 16846

TDA 16847

1.5

Block Diagrams

SYN 7

R7

5V

30 kΩ

R8

D4 R4

KSY

R3

OTC 1

75 kΩ

15 kΩ

Control Voltage

Off Time

Limit Comparator

2V

CS1

+

-

RSTC/RSTF

3.5 V 5 V

RZI 3

Error

Amplifier R2

D2

+

-

D3

SRC 4

OCI 5

Buffer for

Control Voltage

++

-

Fold Back Point Correction

R6 x 1/3

R6

PVA

D5

1.5 V

G1

1

ED2

Error-

Flipflop

S

Q

R

PVC

11

Primary

Voltage

Check

1V

3.5 V

G4

1

VCC

9 REF

8 N.C.

+ 6 FC2

-

FC2 1.2 V

R1

20 kΩ

On Time

Comparator

PCS 2 5 V

I1

On Time

&

Flipflop

S

G2

Q

R

G3

Output

Driver

&

13 OUT

VCC 14

GND 12

ED1

1.5 V

D1

Startup

< 25 mV

Diode Overvoltage

Comparator

+

16 V -

Zero Crossing

Signal

15/8 V

Supply

Voltage

Comparator

+

-

1) The input with the lower voltage becomes operative

Figure 2 TDA 16846

FC1

1V

10

FC1

AEB02648

Data Sheet

6

2000-01-14

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