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NCP1030 Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP1030 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 18 page © Semiconductor Components Industries, LLC, 2006 January, 2006 − Rev. 6 1 Publication Order Number: NCP1030/D NCP1030, NCP1031 Low Power PWM Controller with On−Chip Power Switch and Startup Circuits for 48V Telecom Systems The NCP1030 and NCP1031 are a family of miniature high−voltage monolithic switching regulators with on−chip Power Switch and Startup Circuits. The NCP103x family incorporates in a single IC all the active power, control logic and protection circuitry required to implement, with minimal external components, several switching regulator applications, such as a secondary side bias supply or a low power dc−dc converter. This controller family is ideally suited for 48 V telecom, 42 V automotive and 12 V input applications. The NCP103x can be configured in any single−ended topology such as forward or flyback. The NCP1030 is targeted for applications requiring up to 3 W, and the NCP1031 is targeted for applications requiring up to 6 W. The internal error amplifier allows the NCP103x family to be easily configured for secondary or primary side regulation operation in isolated and non−isolated configurations. The fixed frequency oscillator is optimized for operation up to 1 MHz and is capable of external frequency synchronization, providing additional design flexibility. In addition, the NCP103x incorporates individual line undervoltage and overvoltage detectors, cycle by cycle current limit and thermal shutdown to protect the controller under fault conditions. The preset current limit thresholds eliminate the need for external sensing components. Features • On Chip High 200 V Power Switch Circuit and Startup Circuit • Internal Startup Regulator with Auxiliary Winding Override • Operation up to 1 MHz • External Frequency Synchronization Capability • Frequency Fold−down Under Fault Conditions • Trimmed ± 2% Internal Reference • Line Undervoltage and Overvoltage Detectors • Cycle by Cycle Current Limit Using SENSEFETt • Active LEB Circuit • Overtemperature Protection • Internal Error Amplifier • Pb−Free Packages are Available Typical Applications • POE (Power Over Ethernet)/PD. Refer to Application Note AND8247. • Secondary Side Bias Supply for Isolated dc−dc Converters • Stand Alone Low Power dc−dc Converter • Low Power Bias Supply • Low Power Boost Converter http://onsemi.com Device Package Shipping† ORDERING INFORMATION NCP1030DMR2 Micro8 4000/Tape & Reel NCP1031DR2 SO−8 SO−8 D SUFFIX CASE 751 2500/Tape & Reel MARKING DIAGRAMS 1030/N1031 = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) Micro8 t DM SUFFIX CASE 846A 1030 AYW G G 8 1 8 1 1 GND 2 CT 3 VFB 4 COMP VCC VDRAIN OV UV 8 7 6 5 (Top View) PIN CONNECTIONS 8 1 †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. NCP1030DMR2G Micro8 (Pb−Free) 4000/Tape & Reel NCP1031DR2G SO−8 (Pb−Free) 2500/Tape & Reel N1031 ALYW G 1 8 |
Número de pieza similar - NCP1030_06 |
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