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參數(shù)資料
| 型號： | CS3842AGDR8 |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 156K |
| 代理商： | CS3842AGDR8 |
3
CS2842A/3843A
SERIES
Electrical Characteristics: continued
CS2842A/CS2843A
CS3842A/CS3843A
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX UNITS
CS2842A
CS3842A
CS2843A/CS3843A
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX MIN
TYP
MAX UNITS
Notes:
1. Adjust VCC above the start threshold before setting at 15V.
3. Parameter measured at trip point of latch with VFB=0.
2.These parameters, although guaranteed, are not 100% tested in production.
4. Gain defined as:
A =
; 0 ≤ VSense ≤ 0.8V.
VCOMP
VSense
s
Under-Voltage Lockout Section
Start Threshold
15
16
17
14.5
16.0 17.5
7.8
8.4
9.0
V
Min. Operating
After Turn On
9
10
11
8.5
10.0 11.5
7.0
7.6
8.2
V
Voltage
s
Output Section: continued
Rise Time
TJ = 25C, CL = 1nF (Note 2)
50
150
50
150
ns
Fall Time
TJ = 25C, CL = 1nF (Note 2)
50
150
50
150
ns
Output Leakage
UVLO Active, VOUT = 0
-0.01
-10.00
-0.01 -10.00 A
s
Total Standby Current
Start-Up Current
0.5
1.0
0.5
1.0
mA
Operating Supply Current
VFB = VSense = 0V, RT = 10k, CT = 3.3nF 11
17
11
17
mA
VCC Zener Voltage
ICC = 25mA
34
V
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
8L PDIP/SO
14L SO Narrow
1
COMP
Error amp output, used to compensate error amplifier
23
VFB
Error amp inverting input
3
5
Sense
Noninverting input to Current Sense Comparator
4
7
OSC
Oscillator timing network with Capacitor to Ground, resistor
to VREF
5
8
Gnd
Ground
9
Pwr Gnd
Output driver Ground
610
VOUT
Output drive pin
11
VCCPwr
Output driver positive supply
712
VCC
Positive power supply
814
VREF
Output of 5V internal reference
2,4,6,13
NC
No Connection
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| CS3842B/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Off-Line Current Mode PWM Control Circuit with Very Low Start Up Current |
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