STR-Y6763 datasheet(5/13 Pages) SANKEN

Part #	STR-Y6763

Description	Off-Line Quasi-Resonant Switching Regulators

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Manufacturer	SANKEN [Sanken electric]

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Off-Line Quasi-Resonant Switching Regulators

STR-Y6763,

STR-Y6765, and

STR-Y6766

Electrical Characteristics of Control Part (MIC) Unless specifically noted, TA = 25°C and VCC = 20 V

Characteristic

Symbol

Test Conditions

Pins

Min.

Typ.

Max.

Unit

Power Supply Startup Operation

Operation Start Voltage

VCC(ON)

3 – 4

13.8

15.1

17.3

V

Operation Stop Voltage1

VCC(OFF)

3 – 4

8.4

9.4

10.7

V

Circuit Current in Operation

ICC(ON)

3 – 4

–

1.3

3.7

mA

Circuit Current in Non-Operation

ICC(OFF)

VCC = 13 V

3 – 4

–

4.5

50

μA

Startup Circuit Operation Voltage

VSTART(ON)

1 – 4

42

57

72

V

Startup Current

ICC(STARTUP) VCC = 13 V

3 – 4

−4.5

−3.1

−1.0

mA

Startup Current Supply Threshold

Voltage1

VCC(BIAS)

3 – 4

9.5

11.0

12.5

V

Operation Frequency

fOSC

1 – 4

18.4

21.0

24.4

kHz

Soft Start Operation Duration

tSS

1 – 4

–

6.05

–

ms

Normal Operation

Bottom-Skip Operation Threshold

Voltage 1

VOCP(BS1)

2 – 4

0.487

0.572

0.665

V

Bottom-Skip Operation Threshold

Voltage 2

VOCP(BS2)

2 – 4

0.200

0.289

0.380

V

Quasi-Resonant Operation Threshold

Voltage 12

VBD(TH1)

6 – 4

0.14

0.24

0.34

V

Quasi-Resonant Operation Threshold

Voltage 22

VBD(TH2)

6 – 4

–

0.17

–

V

Maximum Feedback Current

IFB(MAX)

5 – 4

−320

−205

−120

μA

Stand-by Operation

Standby Operation Threshold Voltage

VFB(STBOP)

5 – 4

0.45

0.80

1.15

V

Protected Operation

Maximum On-Time

tON(MAX)

1 – 4

30.0

40.0

50.0

μs

Leading Edge Blanking Time

tON(LEB)

STR-Y6763

1 – 4

–

470

–

ns

STR-Y6765

–

455

–

ns

STR-Y6766

–

455

–

ns

Overcurrent Detection Threshold

Voltage (Normal Operation)

VOCP(H)

VBD = 0 V

2 – 4

0.820

0.910

1.000

V

Overcurrent Detection Threshold

Voltage (Input Compensation in

Operation)

VOCP(L)

VBD = –3 V

2 – 4

0.560

0.660

0.760

V

Overcurrent Detection Threshold

Voltage (Latched shutoff)3

VOCP(La.OFF)

2 – 4

1.65

1.83

2.01

V

Continued on the next page…

STR-Y6763-DS

5

SANKEN ELECTRIC CO., LTD.

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