參數(shù)資料
型號(hào)： FAN4800IN_G
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 1 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 250 kHz SWITCHING FREQ-MAX, PDIP16
封裝： LEAD FREE, PLASTIC, MS-001, DIP-16
文件頁數(shù)： 16/19頁
文件大?。?/td> 405K
代理商： FAN4800IN_G
F
AN48
0
—
Low
S
tartup
Curre
nt
PFC/PWM
Cont
rol
ler
Combi
n
a
tions
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN4800 Rev. 1.0.6
6
Electrical Characteristics (Continued)
Unless otherwise stated, these specifications apply: VCC = 15V, RT = 52.3kΩ, CT = 470pF, and TA = -40°C to 125°C.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
PFC ILIMIT COMPARATOR
Vth(cs)
Threshold Voltage
-1.10
-1.00
-0.90
V
Vth(cs)-Vgm
(PFC ILIMIT VTH – Gain Modulator
Output)
5
100
mV
td(pfc_off)
Delay to Output(1)
250
ns
DC ILIMIT COMPARATOR
Vth(DC)
Threshold Voltage
0.95
1.00
1.05
V
td(pwm_off)
Delay to Output(1)
250
ns
VIN OK COMPARATOR
Vth(OK)
Threshold Voltage
2.10
2.45
V
HY(OK)
Hysteresis
0.8
1.0
1.2
V
GAIN MODULATOR
G1
Gain(3)
IAC = 100μA, VRMS = 0,
VFB = 1V, TA = 25°C
0.70
0.84
0.95
Gain(3)
G2
IAC = 100μA, VRMS = 1.1V,
VFB = 1V, TA = 25°C
1.80
2.00
2.20
G3
IAC = 150μA, VRMS = 1.8V,
VFB = 1V, TA = 25°C
0.90
1.00
1.10
G4
IAC = 300μA, VRMS = 3.3V,
VFB = 1V, TA = 25°C
0.25
0.32
0.40
BW
Band Width(1)
IAC = 100μA10
MHz
Vo(gm)
Output Voltage
= 3.5k
Ω x (I
SENSE – IOFFSET)
IAC = 250μA, VRMS = 1.1V,
VFB = 2V, TA = 25°C
0.80
1.00
1.20
V
OSCILLATOR
fosc1
Initial Accuracy
TA = 25°C
68
81
kHz
Δf
osc1
Voltage Stability
11V < VCC < 16.5V
1
%
Δf
osc2
Temperature Stability
2
%
fosc2
Total Variation
Line, Temp
66
84
kHz
Vramp
Ramp Valley to Peak Voltage(1)
2.75
V
tdead
PFC Dead Time
685
ns
Idis
CT Discharge Current
VRAMP2 = 0V, VRAMP1 = 2.5V
6.5
15.0
mA
REFERENCE
Vref1
Output Voltage
TA = 25°C, I(VREF) = 1mA
7.4
7.5
7.6
V
ΔV
ref1
Line Regulation
11V < VCC < 16.5V
10
25
mV
ΔV
ref2
Load Regulation
0mA < I(VREF) < 7mA
10
20
mV
ΔV
ref4
Temperature Stability
0.4
%
Vref2
Total Variation(1)
Line, Load, Temperature
7.35
7.65
V
ΔV
ref5
Long Term Stability(1)
TJ = 125°C, 1000 hours
5
25
mV
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