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參數(shù)資料
| 型號： | SC1101 |
| 廠商： | Semtech Corporation |
| 英文描述： | VOLTAGE MODE PWM CONTROLLER |
| 中文描述： | 電壓模式PWM控制器 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 96K |
| 代理商： | SC1101 |
SC1101
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
VOLTAGE MODE PWM CONTROLLER
February 29, 2000
6
7) The Current Sense resistor and the divider across it
should form as small a loop as possible, the traces run-
ning back to CS(+) and CS(-) on the SC1101 should run
parallel and close to each other. The 0.1
μ
F capacitor
should be mounted as close to the CS(+) and CS(-) pins
as possible.
8) To minimize noise pickup at the sensitive FB pin, the
feedback resistors should both be close to the SC1101
with the bottom resistor (Rb) returned to ground at the
GND pin.
Under Voltage Lockout
The under voltage lockout circuit of the SC1101 assures
that the high-side MOSFET driver outputs remain in the
off state whenever the supply voltage drops below set
parameters. Lockout occurs if V
CC
falls below 3.8V. Nor-
mal operation resumes once V
CC
C2-C7 - AVX: TPSE227M010S0100
Q1, D1 - International Rectifier
L1- Coilcraft: DO5022P-392HC
+3.3V
+12V
GND
VOUT
+5V
C1
0.1uF
R1
6mOhm
R3
10
C9
0.1uF
C10
+
C2
220uF
J1
1
J3
1
J4
1
Cx
0.01
C8
R2
24
J2
1
C6
SC1U1
GND
8
VCC
1
CS(-)
2
CS(+)
3
PGND
4
DH
5
BST
6
FB
7
124
+
C3
220uF
+
C4
220uF
+
C5
220uF
Q1
IRL2203S
L1
J5
1
D1
32CTQ030S
C7
J6
1
R5
1k
1k
R6
Fig. 6: GTL+ 3.3V to 1.5V 8A Application
TYPICAL APPLICATIONS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SC1101CS | VOLTAGE MODE PWM CONTROLLER |
| SC1102CSTR | SYNCHRONOUS DC/DC CONTROLLER FOR DISTRIBUTED POWER SUPPLY APPLICATIONS |
| SC1102 | SYNCHRONOUS DC/DC CONTROLLER FOR DISTRIBUTED POWER SUPPLY APPLICATIONS |
| SC1102EVB | SYNCHRONOUS DC/DC CONTROLLER FOR DISTRIBUTED POWER SUPPLY APPLICATIONS |
| SC1103 | VOLTAGE MODE PWM CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC1101_05 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Asynchronous Voltage Mode PWM Controller |
| SC11014 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:300 / 1200 Bit Per Second Modem |
| SC1101CS | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:VOLTAGE MODE PWM CONTROLLER |
| SC1101CS.TR | 制造商:Semtech Corporation 功能描述:Pulse Width Modulation (PWM) Controller |
| SC1101CS.TRT | 制造商:Semtech Corporation 功能描述:CONTROLLER IC ((NW)) 制造商:SEMTECH 功能描述:I.C. |
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