参数资料
型号: LT1249CS8#TR
厂商: Linear Technology
文件页数: 12/12页
文件大小: 197K
描述: IC PFC CTRLR AVERAGE CURR 8SOIC
标准包装: 2,500
模式: 平均电流
频率 - 开关: 100kHz
电流 - 启动: 250µA
电源电压: 15.5 V ~ 27 V
工作温度: 0°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
12
LT1249
?LINEAR TECHNOLOGY CORPORATION 1994
sn1249 1249fbs LT/TP 0799 2K REV B " PRINTED IN USA
TYPICAL APPLICATION

+

+
VA
OUT
7.5V
EA
1V

+
M1

+
I
M
 = 
I
A
2
I
B
200礎
2
32k
I
A
I
B
I
M
16V/10V
g
m
 = 1/3k
0.7V

+
OSC
SYNC
R
S
Q
6
5
3
4
2
1
8
MULTIPLIER
I
AC
V
SENSE
M
OUT
7
CA
OUT
V
CC
CA
RUN
RUN
GTDR
16V
35pF
20礎
MAX
250礎
1N5819
4.7nF
1M
0.047礔
0.47礔
330k
10k
44礎
22礎
15礎
100pF
1nF
20k
4k
V
OUT
180礔
90V
TO
270V
EMI
FILTER
+

R
MOUT
4k
R
S
0.2&
750礖*
1M
MURH860
V
CC
GND
 
1249 TA01
IRF840
6A
10&
7.5V
V
REF
**
1. COILTRONICS CTX02-12236 (TYPE 52 CORE)
  AIR MOVEMENT NEEDED AT POWER LEVEL GREATER THAN 250W.
2. COILTRONICS CTX02-12295 (MAGNETICS Kool M?/DIV>
?/DIV>
 77930 CORE)
THIS SCHOTTKY DIODE IS TO CLAMP GTDR WHEN MOS SWITCH TURNS OFF.
PARASITIC INDUCTANCE AND GATE CAPACITANCE MAY TURN ON CHIP SUBSTRATE
DIODE AND CAUSE ERRATIC OPERATIONS IF GTDR IS NOT CLAMPED.
*
**
  SEE APPLICATIONS INFORMATION SECTION FOR CIRCUITRY TO SUPPLY POWER TO V
CC
.
+
Kool M?is a registered trademark of Magnetics, Inc.
PART NUMBER
DESCRIPTION
COMMENTS
LT1103
Off-Line Switching Regulator
Universal Off-Line Inputs with Outputs to 100W
LT1248
Full Feature Average Current Mode Power Factor Controller
Provides All Features in 16-Lead Package
LT1508
Power Factor and PWM Controller
Simplified PFC Design
LT1509
Power Factor and PWM Controller
Complete Solution for Universal Off-Line Switching Power Supplies
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
q
 FAX: (408) 434-0507
 q
 www.linear-tech.com
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相关代理商/技术参数
参数描述
LT1249I 制造商:LINER 制造商全称:Linear Technology 功能描述:Power Factor Controller
LT1249IN8 功能描述:IC PFC CTRLR AVERAGE CURR 8DIP RoHS:否 类别:集成电路 (IC) >> PMIC - PFC(功率因数修正) 系列:- 产品培训模块:GreenChip Synchronous Rectification Control Family of ICs 标准包装:1 系列:- 模式:间歇导电(DCM) 频率 - 开关:- 电流 - 启动:- 电源电压:8.6 V ~ 38 V 工作温度:-20°C ~ 150°C 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SO 包装:Digi-Reel® 其它名称:568-5348-6
LT1249IN8#PBF 功能描述:IC PFC CTRLR AVERAGE CURR 8DIP RoHS:是 类别:集成电路 (IC) >> PMIC - PFC(功率因数修正) 系列:- 产品培训模块:GreenChip Synchronous Rectification Control Family of ICs 标准包装:1 系列:- 模式:间歇导电(DCM) 频率 - 开关:- 电流 - 启动:- 电源电压:8.6 V ~ 38 V 工作温度:-20°C ~ 150°C 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SO 包装:Digi-Reel® 其它名称:568-5348-6
LT1249IS8 功能描述:IC PFC CTRLR AVERAGE CURR 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - PFC(功率因数修正) 系列:- 产品培训模块:GreenChip Synchronous Rectification Control Family of ICs 标准包装:1 系列:- 模式:间歇导电(DCM) 频率 - 开关:- 电流 - 启动:- 电源电压:8.6 V ~ 38 V 工作温度:-20°C ~ 150°C 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SO 包装:Digi-Reel® 其它名称:568-5348-6
LT1249IS8#PBF 功能描述:IC PFC CTRLR AVERAGE CURR 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - PFC(功率因数修正) 系列:- 产品培训模块:GreenChip Synchronous Rectification Control Family of ICs 标准包装:1 系列:- 模式:间歇导电(DCM) 频率 - 开关:- 电流 - 启动:- 电源电压:8.6 V ~ 38 V 工作温度:-20°C ~ 150°C 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SO 包装:Digi-Reel® 其它名称:568-5348-6