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參數(shù)資料
| 型號(hào)： | US3036CS |
| 廠商： | Unisem Group |
| 英文描述： | 8 PIN PWM SWITCHER CONTROLLER IC |
| 中文描述： | 8引腳的PWM開關(guān)控制器IC |
| 文件頁(yè)數(shù)： | 2/7頁(yè) |
| 文件大小： | 56K |
| 代理商： | US3036CS |
US3036
4-2
Rev. 1.1
12/4/98
ABSOLUTE MAXIMUM RATINGS
V
CC
Supply Voltage ............................................................. 20V
F.B Pin Voltage........................................................ -0.3V to 5V
Storage Temperature Range ................................. -65 TO 150
°
C
Operating Junction Temperature ............................... 0 TO 150
°
C
PACKAGE INFORMATION
8 PIN PLASTIC SOIC (S)
θ
JA
=160
°
C/W
PARAMETER
F.B Voltage Initial Accuracy
F.B Voltage Total Variation
F.B Voltage Line Regulation
F.B Input Bias Current
Min On Time
SYM TEST CONDITION
V
FB
T
J
=25
°
C
MIN TYP MAX UNITS
1.237
1.250
1.225
1.250
0.2
-1
800
1.262
1.275
V
V
%
uA
nS
I
FB
V
FB
=1.25V
V
FB
is sq wave with 300 ns on
time and 2 uS off time
V
FB
is sq wave with 300 ns off
time and 2 uS on time
V
FB
=1.5V
V
FB
=1.5V
V
FB
=1V
Load=1000pF
C.S+ , C.S- from 1.3V to 3.7V
V
CS+
= V
CS-
+1
Min Off Time
800
nS
Supply Current
Maximum Duty Cycle
Minimum Duty Cycle
Gate Drive Rise/Fall Time
C.L Threshold Current
C.S Comp Common Mode
Soft Start Current
UVLO Threshold
I
CCSW
D
MAX
D
MIN
V
GATE
I
CL
10
mA
%
%
nS
uA
V
uA
V
100
0
70
20
0
4.5
10
4.4
V
UVLO
4.25
4.55
ELECTRICAL SPECIFICATIONS
Unless otherwise specified the following specification applies over V
CC
=5V, and T
A
=0 to 70
°
C. Low duty cycle
pulse testing are used which keeps junction and case temperatures equal to the ambient temperature.
4
3
2
1
5
6
7
8
TOP VIEW
Drv
Vcc
Vfb
NC
Gnd
CS-
CS+
SS
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