參數(shù)資料
型號: FAN6863LTY
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, PDSO6
封裝: 1.6 MM, MO-193, SUPERSOT, 6 PIN
文件頁數(shù): 13/16頁
文件大?。?/td> 1243K
代理商: FAN6863LTY
2011 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN6863 Rev. 1.0.1
6
FAN6863
Highly
Integrated
Green-Mode
PWM
Controller
Electrical Characteristics (Continued)
VDD = 15 and TA = 25°C, unless otherwise noted.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
Oscillator Section
fOSC
Normal PWM Frequency
Center Frequency VFB > VFB-N
60
65
68
kHz
Hopping Range
VFB VFB-N
±
4.2
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
2.5
V
VFB-G
FB Voltage at fOSC-G
2.2
V
VFB-ZDC
FB Threshold Voltage for Zero-Duty
1.6
V
VFB-ZDCR -
VFB-ZDC
ZDC Hysteresis
0.15
V
fDV
Frequency Variation vs. VDD Deviation
VDD = 7.5V to 21V
0.5
2.0
%
fDT
Frequency Variation vs. Temperature
Deviation
TA = -40 to +105°C
2
%
Continued on following page…
Figure 5. PWM Frequency
PWM Frequency
fOSC
fOSC-G
VFB-N
VFB-G
VFB-ZDC
VFB
VFB-ZDCR
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