Topology | Flyback Converter |
Input voltage | 75-180 V |
Switching frequency | 100-500 kHz |
Output 1 | 12 V / 10 A |
IC revision | B |
The LT®3752/LT3752-1 are current mode PWM controllers optimized for an active clamp forward converter topology. A DC/DC housekeeping controller is included for improved efficiency and performance. The LT3752 allows operation up to 100V input and the LT3752-1 is optimized for applications with input voltages greater than 100V.
A programmable volt-second clamp allows primary switch duty cycles above 50% for high switch, transformer and rectifier utilization. Active clamp control reduces switch voltage stress and increases efficiency. A synchronous output is available for controlling secondary side synchronous rectification.
The LT3752/LT3752-1 are available in a 38-lead plastic TSSOP package with missing pins for high voltage spacings.
Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (mA) | Vaux (V) | Vaux 1 (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | Samples | |
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750370024 | SPEC | 4 files | MID-OLSTM Offline Flyback Transformers for STMicroelectronics | 85 - 424 V (AC) | 12 | 500 | 16 | 16 | 115 | 1.6 | 8:1:1.33 | 340 | 4000 | 13.72 | 20.45 | 10.8 | THT | EE13/7/4 | – | – | – | – | |||
7443631500 | SPEC | 8 files | WE-HCF SMT High Current Inductor | – | – | – | – | – | – | 0.015 | – | – | – | 20.8 | 20.5 | 13.5 | – | 2013 | 15.4 | 19 | 21 | 9.57 |
Order Code | Datasheet | Simulation | |
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750370024 | SPEC | ||
7443631500 | SPEC |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (mA) | Vaux (V) | Vaux 1 (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | Samples |
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