Off-Line Quasi-Resonant Switching Regulators

STR-Y6763,

STR-Y6765, and

STR-Y6766

Characteristic

Symbol

Notes

Pins

Rating

Unit

STR-Y6763

Single pulse

1 – 2

6.7

A

STR-Y6765

8.9

A

STR-Y6766

10.5

A

Maximum Switching Current

STR-Y6763

1 – 2

6.7

A

STR-Y6765

8.9

A

STR-Y6766

10.5

A

STR-Y6763

1 – 2

60

mJ

STR-Y6765

77

mJ

STR-Y6766

116

mJ

Input Voltage in Control Part (MIC)

3 – 4

35

V

Startup (D/ST) Pin Voltage

1 – 4

V

OCP Pin Voltage

2 – 4

−2.0 to 6.0

V

FB Pin Voltage

5 – 4

−0.3 to 7.0

V

5 – 4

10.0

mA

BD Pin Voltage

6 – 4

−6.0 to 6.0

V

STR-Y6763

With an infinite heatsink

1 – 2

19.9

W

STR-Y6765

21.8

W

STR-Y6766

23.6

W

Without heatsink

1 – 2

1.8

W

Power Dissipation in Control Part (MIC)

–

0.8

W

Internal Frame Temperature in Operation

Recommended internal frame temperature

–

−20 to 115

°C

Operating Ambient Temperature

–

−20 to 115

°C

Storage Temperature

–

−40 to 125

°C

Channel Temperature

–

150

°C

1

Refer to MOSFET Safe Operating Area Curve.

2

Refer to MOSFET Avalanche Energy Derating Coefficient Curve.

3

The polarity value for current specifies a sink as "+ ," and a source as “−,” referencing the IC.

4

Refer to MOSFET Temperature versus Power Dissipation Curve.

STR-Y6763-DS

3

SANKEN ELECTRIC CO., LTD.