参数资料
型号: SG6846CLDZ
厂商: Fairchild Semiconductor
文件页数: 6/15页
文件大小: 0K
描述: IC CTRLR PWM PROG GREEN OTP 8DIP
产品变化通告: Product Discontinuation 03/Dec/2009
标准包装: 59
输出隔离: 隔离
频率范围: 44.8 ~ 136kHz
输入电压: 10.5 V ~ 25 V
输出电压: 18V
功率(瓦特): 800mW
工作温度: -40°C ~ 150°C
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-DIP
包装: 管件
Electrical Characteristics (Continued)
V DD = 15V, T A = 25°C, unless noted.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Oscillator Section
f OSC
Normal PWM Frequency
Center
Frequency
R I = 26k ? , V FB >V N
62
65
68
kHz
Jitter Range
± 3.7
± 4.2
± 4.7
f OSC,MAX
Maximum PWM
Frequency
Center
Frequency
Jitter Range
R I = 13k ? , V FB >V N
124
± 7.4
130
± 8.4
136
± 9.4
kHz
f OSC,MIN
Center
Minimum PWM Frequency Frequency
R I = 36k ? , V FB >V N
44.8
47.0
49.2
kHz
Jitter Range
± 2.54
± 2.90
± 3.26
FB Pin Frequency
t hop-1
t hop-3
f OSC-G
V FB-N
Jitter Period
Jitter period
Green-mode Minimum Frequency
Pin, FB voltage
Reduction Threshold Jitter Range
R I = 26k ? , V FB ≥ V N
R I = 26k ? , V FB = V G
R I = 26k ?
R I = 26k ? , V FB = V N
3.9
10.2
18.0
1.9
3.7
4.4
11.5
22.5
2.1
4.2
4.9
12.8
25.0
2.3
4.7
ms
ms
kHz
V
KHz
V FB-G
FB Voltage at f OSC-G
Pin, FB voltage
Jitter Range
R I = 26k ? , V FB = V G
1.4
1.27
1.6
1.45
1.8
1.62
V
KHz
S G
f DV
Slope for Green-Mode Modulation
Frequency Variation vs. V DD Deviation
R I = 26k ?
V DD = 11.5V to 20V
85
5
Hz/mV
%
f DT
Frequency Variation vs. Temperature
Deviation
T A = -30 to 85°C
1.5
5.0
%
Continued on following page…
Figure 5. PWM Frequency
? 2007 Fairchild Semiconductor Corporation
SG6846C ? Rev. 1.1.2
6
www.fairchildsemi.com
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