参数资料
型号: LT1245IS8#TRPBF
厂商: Linear Technology
文件页数: 16/16页
文件大小: 0K
描述: IC REG CTRLR ISO PWM CM 8-SOIC
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 500kHz
占空比: 48%
电源电压: 8.2 V ~ 25 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 100°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
LT1241 Series
TYPICAL APPLICATIO N
Slope Compensation at Error Amp
UV
V REF
8
5V REF
MAIN BIAS
REFERENCE ENABLE
REFERENCE PULL-DOWN
LOCKOUT
V CC
OUTPUT
7
R T
R T/ C T
PULL-DOWN
TO
VOUT
C T
4
COMP
OSCILLATOR
T
S
OUTPUT
6
R SLOPE
R f
1
2
FB
1mA
5.6V
2R
1V
R
BLANKING
18V
GND
5
+
R
+
2.5V
+
1.5V
I SENSE
3
LT1241 ? TA05
RELATED PARTS
PART NUMBER
LT1246
LT1248/LT1249
LT1372
LT1376
LT1509
DESCRIPTION
1MHz Current Mode PWM
Power Factor Controllers
High Efficiency Switching Regulator
1.5A 500kHz Step-Down Switching Regulator
Power Factor and PWM Controller
COMMENTS
16V Start-Up Threshold, 10V Minimum Operating Voltage
Minimal Parts Count
500kHz 1.5A Boost Regulator
Steps Down from Up to 25V Using 4.7 μ H Inductors
Complete Solution for Universal Off-Line Switching Power Supplies
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417 q (408) 432-1900
FAX: (408) 434-0507 q TELEX: 499-3977 q www.linear-tech.com
1241fa LT/TP 0297 5K REV A ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 1992
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