參數(shù)資料
型號(hào): SiP2805
廠商: Vishay Intertechnology,Inc.
英文描述: Low Power Consumption Current Mode Controller
中文描述: 低功耗電流模式控制器
文件頁數(shù): 2/8頁
文件大?。?/td> 93K
代理商: SIP2805
SiP2800/01/02/03/04/05
Vishay Siliconix
New Product
www.vishay.com
2
Document Number: 72660
S-41623—Rev.C, 30-Aug-04
ABSOLUTE MAXIMUM RATINGS
V
CC
FB, Comp, CS
12 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
--0.3 V to 6 V
Power Disispation SO-8
Power Disispation TSSOP-8
StorageTemperature
1 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
830 mW
--55 to 150
_
C
Currents are positive into, negative out of the specificed terminal.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation
ofthe deviceat theseor anyother conditionsbeyond thoseindicated inthe operationalsections ofthe specificationsis notimplied. Exposure toabsolute maximumrating
conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE
Input Voltage SiP2803/5
Input Voltage SiP2800/1/2/4
5 to 11 V
6 to 11 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range
--40 to 85
_
C
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS
Test Conditions Unless Specified
Limits
Parameter
Symbol
V
CC
= 10 V, R
T
= 100 k
, C
T
= 330 pF
C
REF
= 0.1
m
F, --40
_
C < T
A
< 85
_
C
Min
a
Typ
b
Max
a
Unit
Reference
= 0 2 mA T
I
LOAD
= 0.2 mA, T
A
= 25
°
C
SiP2800/1/2/4
4.925
5.000
5.075
Reference Voltage
V
REF
SiP2803/5
3.940
4.88
3.90
4.000
5.00
4.00
4.06
5.10
4.08
V
SiP2800/1/2/4
SiP2803/5
Load Regulation
V
LOAD
0.2mA< I
LOAD
<5mA
Vcc=10 V to Clamp , T
A
= 25
°
C
Vcc=10 V to Clamp
10
30
mV
Line Regulation
V
LINE
1.9
2.5
mV/V
Noise
Short Circuit Current
V
NOISE
I
SC
10 Hz < f < 10 kHz T
10 Hz < f < 10 kHz, T
A
= 25
°
C
130
m
V
mA
--5
--35
Oscillator
Frequency
f
OSC
SiP2800/1/2/4
40
46
52
kHz
SiP2803/5
26
31
2.5
36
Temperature Stability
%
Amplitude
Peak Voltage
V
P--P
V
P
2.25
2.40
2.45
2.55
V
Error Amplifier
Input Voltage
V
IN
COMP = 2.5 V
SiP2800/1/2/4
2.44
2.50
2.56
V
COMP = 2.0 V
SiP2803/5
1.95
2.00
2.05
Input Bias Current
I
BIAS1
A
V
I
SINK
I
SOURCE
B
W
--1
1
m
A
dB
Open Loop Gain
60
80
COMP Sink Current
COMP Source Current
FB = 2.7 V, COM P= 1.1 V
FB = 1.8 V, COMP = V
REF
-- 1.2 V
0.3
--0.2
3.5
--0.8
mA
--0.5
Gain Bandwidth
2
MHz
PWM and Overcurrent Comparator
Maximum Duty Cycle
D
MAX
SiP2800/2/3
97
99
100
SiP2801/4/5
48
49
50
0
%
Minimum Duty Cycle
Gain
c
D
MIN
A
V
VI
MAX
I
BIAS2
COMP = 0 V
0 < V
CS
< 0.8 V
COMP = 5 V
1.2
1.65
1.9
V/V
Max. Input Signal
0.9
1.0
1.1
V
Input Bias Current 2
--200
200
nA
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