Datasheet LT1249 (Linear Technology) - 12
| 制造商 | Linear Technology |
| 描述 | Power Factor Controller |
| 页数 / 页 | 12 / 12 — TYPICAL APPLICATION. RELATED PARTS. PART NUMBER. DESCRIPTION. COMMENTS |
| 修订版 | S |
| 文件格式/大小 | PDF / 203 Kb |
| 文件语言 | 英语 |
TYPICAL APPLICATION. RELATED PARTS. PART NUMBER. DESCRIPTION. COMMENTS
该数据表的模型线
文件文字版本
LT1249
U TYPICAL APPLICATION
750µH* MURH860 + VOUT 90V EMI TO FILTER 270V 6A – + IRF840 1M 180µF 0.047µF RS 20k 0.2Ω 0.47µF 1nF 100pF 330k 10Ω 10k † VAOUT MOUT CAOUT GND VCC 5 3 2 1 7 7.5V R V + MOUT 7.5V REF 4k EA 6 – + V RUN MAX CC I V A SENSE MULTIPLIER 250µA 16V/10V – 1M I 2 M + I I IB I A B M = – 4 200µA2 – CA R Q 32k I + AC + S 15µA g GTDR m = 1/3k RUN 0.7V 8 1V + – M1 – + OSC SYNC – 4.7nF 44µA 16V 4k 20µA ** 22µA 1N5819 35pF 1249 TA01 * 1. COILTRONICS CTX02-12236 (TYPE 52 CORE) AIR MOVEMENT NEEDED AT POWER LEVEL GREATER THAN 250W. 2. COILTRONICS CTX02-12295 (MAGNETICS Kool Mµ® 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 VCC.
RELATED PARTS 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 Kool Mµ is a registered trademark of Magnetics, Inc. sn1249 1249fbs LT/TP 0799 2K REV B • PRINTED IN USA 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com LINEAR TECHNOLOGY CORPORATION 1994
U TYPICAL APPLICATION
750µH* MURH860 + VOUT 90V EMI TO FILTER 270V 6A – + IRF840 1M 180µF 0.047µF RS 20k 0.2Ω 0.47µF 1nF 100pF 330k 10Ω 10k † VAOUT MOUT CAOUT GND VCC 5 3 2 1 7 7.5V R V + MOUT 7.5V REF 4k EA 6 – + V RUN MAX CC I V A SENSE MULTIPLIER 250µA 16V/10V – 1M I 2 M + I I IB I A B M = – 4 200µA2 – CA R Q 32k I + AC + S 15µA g GTDR m = 1/3k RUN 0.7V 8 1V + – M1 – + OSC SYNC – 4.7nF 44µA 16V 4k 20µA ** 22µA 1N5819 35pF 1249 TA01 * 1. COILTRONICS CTX02-12236 (TYPE 52 CORE) AIR MOVEMENT NEEDED AT POWER LEVEL GREATER THAN 250W. 2. COILTRONICS CTX02-12295 (MAGNETICS Kool Mµ® 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 VCC.
RELATED PARTS 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 Kool Mµ is a registered trademark of Magnetics, Inc. sn1249 1249fbs LT/TP 0799 2K REV B • PRINTED IN USA 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com LINEAR TECHNOLOGY CORPORATION 1994