參數(shù)資料
型號(hào): FAN6920MRMY
廠商: Fairchild Semiconductor
文件頁(yè)數(shù): 10/24頁(yè)
文件大?。?/td> 1490K
描述: IC PWM CTLR PFC/QUASI-RES 16SOP
標(biāo)準(zhǔn)包裝: 1
模式: 臨界傳導(dǎo)(CRM)
電流 - 啟動(dòng): 20µA
電源電壓: 12 V ~ 25 V
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOP
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: FAN6920MRMYDKR
 
?2010 Fairchild Semiconductor Corporation
 
www.fairchildsemi.com
FAN6920MR " Rev. 1.0.8
10
Electrical Characteristics (Continued)
V
DD
=15 V and T
A
=25癈 unless otherwise noted.
Symbol
Parameter
Conditions
Min.     Typ.     Max.     Unit
PWM STAGE
Feedback Input Section
A
V
Input-Voltage to Current Sense
Attenuation
(4)
 
V
=DV
CS
 /DV
FB
 ,
 < V
CS
< 0.9 
1/2.75     1/3.00     1/3.25 
V/V 
Z
FB
Input Impedance
(4)
 
FB
 > V
G
 
3
5
7
k?
I
OZ
Bias Current
FB
=V
OZ
 
 
1.2
2.0
mA
V
OZ
 
Zero Duty Cycle Input Voltage
0.7
0.9
1.1
V
V
FB-OLP
 
Open-Loop Protection Threshold
Voltage
3.9
4.2
4.5
V
t
FB-OLP
 
The Debounce Time for Open-Loop
Protection
40
50
60
ms
t
FB-SS
 
Internal Soft-Start Time
(4)
 
FB
=0 V~3.6 V
4
5
6
ms
DET Pin OVP and Valley Detection Section
V
DET-OVP
Comparator Reference Voltage
2.45
2.50 
2.55 
V 
Av
Open-Loop Gain
(4)
 
 
60
 
dB
BW
Gain Bandwidth
(4)
 
 
1
 
MHz
t
DET-OVP
Output OVP (Auto-Recovery) Debounce
Time
100
150
200
I
DET-SOURCE
    Maximum Source Current
DET
=0 V
 
 
1
mA
V
DET-L  W
     Lower Clam   Volta  e
I
DET
=1 mA
0.15
0.25
0.35
V
t
VALLEY-DELAY
 
Delay Time from Valley Signal Detected
to Output Turn-On
(4)
 
150
200
250
ns
t
OFF-BNK
 
Leading-Edge Blanking Time for DET-
OVP (2.5 V) and Valley Signal when
PWM MOS Turns Off
(4)
 
 
2.5
 
t
TIME-OUT
 
Time-Out After t
OFF-MIN
(4)
 
8
9
10
PWM Oscillator Section
t
ON-MAX-PWM
    Maximum On-Time
38
45
52
t
OFF-MIN
Minimum Off-Time
FB
 g V
N
, T
A
=25癈
 
 
 
5
 
FB
=V
G
 
 
20.5
 
V
N
 
Beginning of Green-On Mode at FB
Voltage Level
1.95
2.10
2.25
V
V
G
 
Beginning of Green-Off Mode at FB
Voltage Level
1.00
1.15
1.30
V
G
 
Hysteresis for Beginning of Green-Off
Mode at FB Voltage Level
(4)
 
 
0.1
 
V
Continued on the following page&
 
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