FAN6862TY datasheet(5/15 Pages) FAIRCHILD

Nome de Peças	FAN6862TY

Descrição Electrónicos	Highly Integrated Green-Mode PWM Controller

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FAN6862 • Rev. 1.0.1

5

Electrical Characteristics

VDD = 15V and TA = 25°C unless otherwise noted.

Symbol

Parameter

Test Condition

Min.

Typ. Max. Unit

VDD Section

VDD-OP

Continuously Operating Voltage

24

V

VDD-ON

Turn-on Threshold Voltage

15

16

17

V

VDD-OFF

Turn-off Voltage

7.5

8.5

9.5

V

VDD-OVP

VDD Over-Voltage Protection (Latch-Off)

24

25

26

V

VDD-LH

Threshold voltage for Latch-Off release

3

4

5

V

IDD-ST

Startup Current

VDD-ON–0.16V

8

30

μA

IDD-OP

Normal Operating Supply Current

CL=1nF

3

4

mA

IDD-BM

Green-Mode Operating Supply Current

GATE open, VFB=VFB-G

2.5

mA

VDD-OVP

VDD Over-Voltage Protection

24

25

26

V

tD-VDDOVP

VDD OVP Debounce Time

30

50

μs

IDD-LH

Latch-Off Holding Current

VDD=5V

40

65

μA

Feedback Input Section

AV

Input-Voltage to Current-Sense

Attenuation

1/4

1/3.5

1/3

V/V

ZFB

Input Impedance

5.5

kΩ

VFB-OPEN

FB Pin Open Voltage

5.0

5.2

5.4

V

VFB-OLP

Threshold Voltage for Open-Loop

Protection

4.3

4.6

4.9

V

tD-OLP

Open-Loop Protection Delay Time

53

56

60

ms

Current Sense Section

tPD

Delay to Output

100

250

ns

tLEB

Leading-Edge Blanking Time

270

360

ns

VSTHFL

Flat Threshold Voltage for Current Limit

Duty>51%

0.5

V

VSTHVA

Valley Threshold Voltage for Current Limit Duty=0%

0.44

V

VSLOPE

Slope Compensation

Duty=DCYMAX

0.273

V

tSOFT-START

Period During Startup time

4

ms

Oscillator Section

fOSC

Normal PWM Frequency

Center Frequency

VFB>VFB-N

62

65

68

Hopping Range

VFB≥VFB-N

±

4.2

Hopping Range

VFB=VFB-G

±

2.9

thop-1

Hopping Period 1

VFB≥VFB-N

4.4

ms

thop-3

Hopping Period 3

VFB=VFB-G

11.5

ms

fOSC-G

Green Mode Minimum Frequency

22.5

kHz

VFB-N

FB Threshold Voltage For Frequency

Reduction

2.2

V

VFB-G

FB Voltage at fOSC-G

2.1

V

VFB-ZDC

FB Threshold Voltage for Zero Duty

1.7

V

fDV

Frequency Variation vs. VDD Deviation

VDD=11.5V to 20V

0

0.02

2.00

%

fDT

Frequency Variation vs. Temperature

Deviation

TA= -40 to +105°C

2

%

Continued on the following page…

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