S6708 查看數據表（PDF） - Allegro MicroSystems

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S6708

OFF-LINE SWITCHING REGULATORS – WITH BIPOLAR SWITCHING TRANSISTOR

Allegro MicroSystems 

STR-S6703 AND STR-S6704

OFF-LINE

QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

ELECTRICAL CHARACTERISTICS at TA = +25°C, VIN = 8.5 V, voltage measurements are refer-

enced to Common (pin 2) (unless otherwise noted).

Characteristic

Symbol

Test Conditions

Limits

Min. Typ. Max.

On-State Voltage

Under-Voltage Lockout

Over-Voltage Threshold

Output Leakage Current

Output Saturation Voltage

DC Current Gain

Maximum ON Time

Minimum OFF Time

Over-Current Threshold

Feedback Threshold Volt.

Inhibit Threshold Voltage

VINT

VINQ

VOVP(th)

ICEX

VCE(sat)

VBE(sat)

hFE

ton

toff

VOCP(th)

VFDBK(th)

VINH(th)

Turn-on, increasing VIN

Turn-off, decreasing VIN

VCE = 500 V, VBE = -1.5 V

STR-S6703, IC = 2 A, IB = 400 mA

STR-S6704, IC = 2 A, IB = 400 mA

STR-S6703, IC = 2 A, IB = 400 mA

STR-S6704, IC = 2 A, IB = 400 mA

STR-S6703, VCE = 4 V, IC = 1 A

STR-S6704, VCE = 4 V, IC = 1 A

Oscillation stops

Oscillation synchronized

7.6 8.0 8.4

4.6 4.9 5.2

9.2 – 10.7

– – 100

– – 400

–

– TBD

– – 1.5

–

– TBD

23 – 46

20 – 50

33 – 41

45 – 55

-0.9 -1.0 -1.1

– 650 –

0.65 0.75 0.85

– 1.4 2.0

Oscillation stops (fault latch set)

3.2 5.1 5.6

Latch Holding Current

Latch Reset Voltage

Supply Current

Insulation RMS Voltage

IINH

VQ

IIN(ON)

IIN(OFF)

VWM(RMS)

VIN reduced from 10.7 V to 4 V

IIN ≤ 100 µA, VIN reduced from 10.7 V

Operating

All terminals simultaneous reference

metal plate against backside

– – 500

2.5 3.1 –

15 – 28

– – 200

2000 – –

Thermal Shutdown

Thermal Resistance

TJ

RθJM

Output junction to mounting surface

125 150 –

– 2.0 –

NOTES: Negative current is defined as coming out of (sourcing) the specified device terminal.

Typical Data is for design information only.

Units

V

V

V

µA

mV

mV

V

V

–

–

µs

µs

V

mV

V

V

V

µA

V

mA

µA

V

°C

°C/W

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