STRX6756_13 查看數據表（PDF） - Sanken Electric co.,ltd.

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STRX6756_13

Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency and Low Noise in Full Load Range

Sanken Electric co.,ltd. 

Power IC for Quasi-Resonant Type Switching Power Supply

with High Efficiency and Low Noise in Full Load Range

STR-X6756

Sep. 2013

Electrical characteristics

Electrical characteristics for control part

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

 Unless otherwise specified, TA = 25 °C, VCC = 20V

Item

Pin

Power supply Start-up Operation

Operation start power supply voltage

4−3

Operation stop power supply voltage

4−3

Circuit current in operation

4−3

Circuit current in non-operation

4−3

Oscillation frequency

1−2

Soft start operating stop voltage

5−3

Soft start operating charging current

5−3

Normal Operation

Bottom-skip operation threshold

voltage 1

7−3

Bottom-skip operation threshold

voltage 2

7−3

Overcurrent detection threshold

voltage

7−3

OCP/BD pin source current

7−3

Quasi-resonant operation threshold

voltage 1

7−3

Quasi-resonant operation threshold

voltage 2

7−3

FB pin threshold voltage

6−3

FB pin sink current (Normal operation)

6−3

Stand-by Operation

Stand-by operation start voltage

4−3

Stand-by operation start voltage

interval

4−3

Stand-by non-operation circuit current

4−3

FB pin sink current (stand-by

operation)

6−3

FB pin threshold voltage (stand-by

operation)

6−3

Minimum ON time

1−2

Protection Operation

Maximum ON time

1−2

OLP operation threshold voltage

5−3

Charge current in OLP operation

5−3

OVP operation power supply voltage

4−3

Latch circuit holding current *

4−3

Latch circuit releasing power supply

voltage *

4−3

*Latch circuit refers to operation during OVP and OLP.

Symbol

VCC(ON)

VCC(OFF)

ICC(ON)

ICC(OFF)

fOSC

VSSOLP(SS)

ISSOLP(SS)

VOCPBD(BS1)

VOCPBD(BS2)

VOCPBD(LIM)

IOCPBD

VOCPBD(TH1)

VOCPBD(TH2)

VFB(OFF)

IFB(ON)

VCC(S)

VCC(SK)

ICC(S)

IFB(S)

VFB(S)

tON(MIN)

tON(MAX)

VSSOLP(OLP)

ISSOLP(OLP)

VCC(OVP)

ICC(H)

VCC(La.OFF)

Ratings

Unit

MIN TYP MAX

16.3

8.8

−

−

19

1.1

−710

18.2

9.7

−

−

22

1.2

−550

19.9 V

10.6 V

6 mA

100 µA

25 kHz

1.4 V

−390 µA

−0.720 −0.665 −0.605 V

−0.485 −0.435 −0.385 V

−0.995 −0.940 −0.895 V

−250 −100 −40 µA

0.28 0.40 0.52 V

0.67 0.80 0.93 V

1.32 1.45 1.58 V

600 1000 1400 µA

10.3 11.2 12.1 V

1.10 1.35 1.65 V

−

20

56 µA

−

4

14 µA

0.55 1.10 1.50 V

0.65 1.00 1.35 µs

27.5 32.5 39.0 µs

4.0 4.9 5.8 V

−16 −11 −6 µA

25.5 27.7 29.9 V

−

45 140 µA

6.0 7.2 8.5 V

Remark

Sanken Electric Co., Ltd.

3/11

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