TOP250 datasheet(3/6 Pages) KEXIN

3 / 6 page

SMD Type

Integrate Circuit

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■ Electrical Characteristics (Tj = -40 to 125 ℃,SOURCE = 0 V,unless otherwise specified)

Maximum Duty Cycle Reduction Onset Threshold

Current

IL (DC) or

IM (DC)

μA

Maximum Duty Cycle Reduction Slope

IL > IL(DC) or IM > IM (DC)

0.25

%/μA

Remote OFF DRAIN Supply Current

(X, L or M Pin Floating)

0.6

1.0

L or M Pin Shorted to CONTROL

1.0

1.6

Remote ON Delay

tR(ON

From Remote On to Drain Turn-On

2.5

μs

Remote OFF Setup Time

tR(OFF)

Minimum Time Before Drain Turn-

On to Disable Cycle

2.5

μs

FREQUENCY Pin Threshold Voltage

2.9

FREQUENCY Pin Input Current

VF = VC

100

μA

Self Protection Current Limit

ILIMIT

Internal di/dt=1260 mA/μs

5.859

6.3

6.741

≤ 85 VAC (Rectified Line Input)

0.75 x

ILIMIT(MIN)

265 VAC (Rectified Line Input)

0.75 x

ILIMIT(MIN)

Leading Edge Blanking Time

tLEB

Ic = 4 mA; Tj = 25 ℃

220

Current Limit Delay

tIL(D)

IC = 4 mA

100

Thermal Shutdown Temperature

130

140

150

℃

Thermal Shutdown Hysteresis

℃

Power-up Reset Threshold Voltage

VC(RESET)

S1 Open

1.75

3.0

4.25

ON-State Resistance

TJ = 25 ℃

TJ = 100 ℃

RDS(ON)

ID = 700 mA

1.1

1.85

1.28

2.15

Off-State Current

IDSS

VL, VM = Floating; IC = 4mA

VDS = 560 V; TJ = 125 ℃

470

μA

Breakdown Voltage

BVDSS

VL, VM = Floating; IC = 4mA

ID = 100 μA; TJ = 25 ℃

700

Rise Time

100

Fall Time

DRAIN Supply Voltage

Shunt Regulator Voltage

VC(SHUNT)

IC = 4 mA

5.6

5.85

6.1

Shunt Regulator Temperature Drift

lCD1

±50

ppm/℃

lCD1

Output MOSFET Enabled

VL, VM = 0 V

1.3

2.4

3.65

ICD2

Output MOSFET Disabled

VL, VM = 0 V

0.3

0.6

1.3

Initial Current Limit

Measured in a Typical Flyback

Converter Application

Control Supply/ Discharge Current

ID(RMT)

VDRAIN = 150 V

IINIT

■ Marking

Marking

TOP250

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