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參數(shù)資料
| 型號： | CS3845BGD8 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | Current Mode PWM Control Circuit with 50% Max Duty Cycle |
| 中文描述： | 電流模式PWM控制電路的最大占空比為50％ |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 149K |
| 代理商： | CS3845BGD8 |
3
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
C
Electrical Characteristics: continued
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
8L PDIP & SO
14L SO
1
1
COMP
Error amp output, used to compensate error amplifier
2
3
V
FB
Error amp inverting input
3
5
Sense
Noninverting input in Current Sense Comparator
4
7
OSC
Oscillator timing network with Capacitor to Gnd, resistor
to V
REF
5
9
Gnd
Ground
6
10
V
OUT
Output drive pin
7
12
V
CC
Positive power supply
8
14
V
REF
Output of 5V internal reference
8
Pwr Gnd
Output driver Gnd
11
V
CC
Pwr
Output driver positive supply
2, 4, 6, 13
NC
No Connection
I
Total Standby Current
Start-Up Current
Operating Supply Current
300
11
500
17
μA
mA
V
FB
=V
Sense
=0V R
T
=10k
, C
T
=3.3nF
V
CC
Zener Voltage
I
CC
=25mA
34
V
I
PWM Section
Maximum Duty Cycle
Minimum Duty Cycle
46
48
50
0
%
%
I
Under-Voltage Lockout Section
Start Threshold
Min. Operating Voltage
7.8
7.0
8.4
7.6
9.0
8.2
V
V
After Turn On
Notes:
1. These parameters, although guaranteed, are not 100% test-
ed in production.
2. Parameter measured at trip point of latch with V
FB
=0
3. Gain defined as: A =
; 0
≤
V
Sense
≤
0.8V.
V
COMP
V
Sense
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相關(guān)代理商/技術(shù)參數(shù) |
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| CS3845BGDR14 | 制造商:CHERRY 制造商全稱:CHERRY 功能描述:Current Mode PWM Control Circuit with 50% Max Duty Cycle |
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