ML4827IS-2 Просмотр технического описания (PDF) - Fairchild Semiconductor

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ML4827IS-2

Fault-Protected PFC and PWM Controller Combo

Fairchild Semiconductor 

ML4827

PRODUCT SPECIFICATION

Electrical Characteristics (Continued)

Symbol

Parameter

Tri-Fault Detect

Fault Detect HIGH

Time to Fault Detect HIGH

Fault Detect LOW

PFC ILIMIT Comparator

Threshold Voltage

∆(PFC ILIMIT VTH - Gain

Modulator Output)

Delay to Output

DC ILIMIT Comparator

Threshold Voltage

Input Bias Current

Delay to Output

VIN OK Comparator

Threshold Voltage

Hysteresis

Gain Modulator

Gain (Note 3)

Bandwidth

Output Voltage

Oscillator

Initial Accuracy

Voltage Stability

Temperature Stability

Total Variation

Ramp Valley to Peak Voltage

Dead Time

CT Discharge Current

Reference

Output Voltage

Line Regulation

Load Regulation

Temperature Stability

Total Variation

Long Term Stability

Conditions

Min.

2.6

VFB = VFAULT DETECT LOW to VFB =

OPEN 1nF from VFB to GND

0.4

–0.8

100

0.9

2.45

0.8

IAC = 100µA, VRMS = VFB = 0V

IAC = 50µA, VRMS = 1.2V, VFB = 0V

IAC = 50µA, VRMS = 1.8V, VFB = 0V

IAC = 100µA, VRMS = 3.3V, VFB = 0V

IAC = 100µA

IAC = 250µA, VRMS = 1.15V, VFB = 0V

0.36

1.20

0.55

0.14

0.74

TA = 25°C

75

VCCZ - 3V < VCC < VCCZ - 0.5V

Line, Temp

72

PFC Only

450

VRAMP 2 = 0V, VRAMP 1 = 2.5V

4.5

TA = 25°C, I(VREF) = 1mA

7.4

VCCZ - 3V < VCC < VCCZ - 0.5V

1mA < I(VREF) < 20mA

Line, Load, Temp

7.35

TJ = 125°C, 1000 Hours

Typ. Max. Units

2.7 2.8 V

1

2 ms

0.5 0.6 V

–1.0 –1.15 V

190

mV

150 300 ns

1.0 1.1 V

±0.3 ±1 µA

150 300 ns

2.55 2.65 V

1.0 1.2 V

0.55 0.66

1.80 2.24

0.80 1.01

0.20 0.26

10

MHz

0.82 0.90 V

80 85 kHz

1

%

2

%

88 kHz

2.5

V

600 750 ns

7.5 9.5 mA

7.5 7.6 V

2 10 mV

2 15 mV

0.4

%

7.65 V

5 25 mV

4

REV. 1.0.1 6/27/01

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