更多产品参数
Switching Controller, Voltage-mode, 2.5A, 270kHz Switching Freq-Max, BICMOS, PQCC20
制造商:
Texas Instruments
制造商型号:
UCC2897RTJR
符合标准:
Rohs 符合
数据手册:
文档下载
UCC2897RTJR数据表
参考设计(24)
40V to 60V Active Clamp Forward 3.3V@26A
PMP3017: The following design is driven by a UCC2897: Active Clamp PWM Controller. The forward converter is a DC/DC converter that uses a transformer to increase or decrease the output voltage (depending on the transformer ratio) and provide galvanic isolation for the load.
PMP2493 Buck Converter with Minimum Component Count to Drive LEDs (11.3V @ 400mA) | TI.com
PMP2493: The TPS40200 controller can be used as a low-cost LED driver. With an input voltage rating of 4.5 to 52 V, it can power LED strings with regulated current and up to a 45 V drop across the string. Current is sensed across a resistor between the cathode of the string and ground and is compared against a 696 mV reference to provide regulated current. Because the driver is a buck and not a boost or flyback, an open string will not produce voltages above the input voltage and over-voltage protection is not needed. The driver can operate in either the continuous or discontinuous mode. For output voltages above 35 V the discontinuous mode is needed due to duty cycle limitation above 35 V. The circuit shown has a Pulse Width Modulator (PWM) input for dimming purposes. Targeted current can be set with jumpers.
Buck Converter with Minimum Component Count to Drive LEDs (11.3V @ 400mA)
PMP2493.4: The TPS40200 controller can be used as a low-cost LED driver. With an input voltage rating of 4.5 to 52 V, it can power LED strings with regulated current and up to a 45 V drop across the string. Current is sensed across a resistor between the cathode of the string and ground and is compared against a 696 mV reference to provide regulated current. Because the driver is a buck and not a boost or flyback, an open string will not produce voltages above the input voltage and over-voltage protection is not needed. The driver can operate in either the continuous or discontinuous mode. For output voltages above 35 V the discontinuous mode is needed due to duty cycle limitation above 35 V. The circuit shown has a Pulse Width Modulator (PWM) input for dimming purposes. Targeted current can be set with jumpers.
Buck Converter with Minimum Component Count to Drive LEDs (21.5V @ 450mA)
PMP2493.3: The TPS40200 controller can be used as a low-cost LED driver. With an input voltage rating of 4.5 to 52 V, it can power LED strings with regulated current and up to a 45 V drop across the string. Current is sensed across a resistor between the cathode of the string and ground and is compared against a 696 mV reference to provide regulated current. Because the driver is a buck and not a boost or flyback, an open string will not produce voltages above the input voltage and over-voltage protection is not needed. The driver can operate in either the continuous or discontinuous mode. For output voltages above 35 V the discontinuous mode is needed due to duty cycle limitation above 35 V. The circuit shown has a Pulse Width Modulator (PWM) input for dimming purposes. Targeted current can be set with jumpers.
PMP5549 14V-35V Input, 12V/7A5, 5V/100mA, Active Clamp | TI.com
PMP5549: This Active clamp Forward supplies two outputs, 12V @ 7.5A and 5V @ 100mA, with a LDO, starting from a 14V…35V input source, reaching 94% efficiency with sync. Rectification.
Wide input 18V to 75V, 3.3V @ 20Amax
PMP7032: wide input range 4:1 telecom active clamp forward 3V3 bus converter that provides I/O voltage up to 20Amps peak
PMP2493 Buck Converter with Minimum Component Count to Drive LEDs (11.3V @ 400mA) | TI.com
PMP2493: The TPS40200 controller can be used as a low-cost LED driver. With an input voltage rating of 4.5 to 52 V, it can power LED strings with regulated current and up to a 45 V drop across the string. Current is sensed across a resistor between the cathode of the string and ground and is compared against a 696 mV reference to provide regulated current. Because the driver is a buck and not a boost or flyback, an open string will not produce voltages above the input voltage and over-voltage protection is not needed. The driver can operate in either the continuous or discontinuous mode. For output voltages above 35 V the discontinuous mode is needed due to duty cycle limitation above 35 V. The circuit shown has a Pulse Width Modulator (PWM) input for dimming purposes. Targeted current can be set with jumpers.
PMP1619 Sync Flyback for Telecom (3.3V @ 3.5A) | TI.com
PMP1619: This reference design uses the UCC2897 to generate an isolated 3.3V/12W output from a standard 48V telecom input. An active-clamp flyback topology with self-driven synchronous rectifiers is used to provide very high efficiency.
14V-35V Input, 12V/7A5, 5V/100mA, Active Clamp
PMP5549: This Active clamp Forward supplies two outputs, 12V @ 7.5A and 5V @ 100mA, with a LDO, starting from a 14V…35V input source, reaching 94% efficiency with sync. Rectification.
PMP8923 Non-Standard PoE (>25.5W) - High Efficiency Forward Converter (5V@10A) Reference Design | TI.com
PMP8923: This converter provides a high power PoE output of 5V/10A. The TPS2379 PD controller allows the use of an external hot swap FET for increased efficiency. The UCC2897A PWM controller is used to implement a high efficiency active clamp forward converter.
PMP7032 Wide input 18V to 75V, 3.3V @ 20Amax | TI.com
PMP7032: wide input range 4:1 telecom active clamp forward 3V3 bus converter that provides I/O voltage up to 20Amps peak
Laser and Ionization Unit
PMP2534: The PMP2534 is composed of two times active clamp forward, delivering 0…35V@10Amax, two current limit functions to protect the 3.3V and 5V outputs and some interface for a microcntroller. The active clamps are constant voltage and/or constant current controllable by means of two PWM inputs. This power supply is suitable as general bench power generator from a desktop standard PSU as source.
Non-Standard (>25.5W) PoE - High Efficiency Forward Converter (5V@10A) Reference Design
PMP8923: This converter provides a high power PoE output of 5V/10A. The TPS2379 PD controller allows the use of an external hot swap FET for increased efficiency. The UCC2897A PWM controller is used to implement a high efficiency active clamp forward converter.
PMP3023 Active Clamp Forward for Telecom 12V@13A | TI.com
PMP3023: The PMP3023 reference design provides 12V at 13A (156W) from a 40V-60Vdc telecom input with up to 95% efficiency. This design uses the UCC2897 active clamp controller along with synchronous rectifiers to achieve very high efficiency.
PMP2534 Laser and Ionization Unit | TI.com
PMP2534: The PMP2534 is composed of two times active clamp forward, delivering 0…35V@10Amax, two current limit functions to protect the 3.3V and 5V outputs and some interface for a microcntroller. The active clamps are constant voltage and/or constant current controllable by means of two PWM inputs. This power supply is suitable as general bench power generator from a desktop standard PSU as source.
Active Clamp Forward 3.3V@6A
PMP4529: This design functions with the lowest noise and lowest cost isolated active clamp forward converter for telecom use, output 3.3V @6A w/ SR.
Sync Flyback for Telecom (3.3V @ 3.5A)
PMP1619: This reference design uses the UCC2897 to generate an isolated 3.3V/12W output from a standard 48V telecom input. An active-clamp flyback topology with self-driven synchronous rectifiers is used to provide very high efficiency.
Buck Converter with Minimum Component Count to Drive LEDs (19V @ 280mA)
PMP2493.2: The TPS40200 controller can be used as a low-cost LED driver. With an input voltage rating of 4.5 to 52 V, it can power LED strings with regulated current and up to a 45 V drop across the string. Current is sensed across a resistor between the cathode of the string and ground and is compared against a 696 mV reference to provide regulated current. Because the driver is a buck and not a boost or flyback, an open string will not produce voltages above the input voltage and over-voltage protection is not needed. The driver can operate in either the continuous or discontinuous mode. For output voltages above 35 V the discontinuous mode is needed due to duty cycle limitation above 35 V. The circuit shown has a Pulse Width Modulator (PWM) input for dimming purposes. Targeted current can be set with jumpers.
Active Clamp Forward for Telecom 12V@13A
PMP3023: The PMP3023 reference design provides 12V at 13A (156W) from a 40V-60Vdc telecom input with up to 95% efficiency. This design uses the UCC2897 active clamp controller along with synchronous rectifiers to achieve very high efficiency.
PMP3017 40V to 60V Active Clamp Forward 3.3V@26A | TI.com
PMP3017: The following design is driven by a UCC2897: Active Clamp PWM Controller. The forward converter is a DC/DC converter that uses a transformer to increase or decrease the output voltage (depending on the transformer ratio) and provide galvanic isolation for the load.
Active Clamp Forward, Flyback for Base Station 3.3V@20A and 15V@1.5A
PMP2844: PMP2844 uses two UCC2897s to generate two isolated outputs from 36V – 72V. The 3.3V at 20A converter uses an active clamp forward topology with synchronous rectifiers. The 15V at 1.5A converter uses a flyback topology. Both converters are operating at 200KHz to keep the efficiency high.
PMP2844 Active Clamp Forward, Flyback for Base Station 3.3V@20A and 15V@1.5A | TI.com
PMP2844: PMP2844 uses two UCC2897s to generate two isolated outputs from 36V – 72V. The 3.3V at 20A converter uses an active clamp forward topology with synchronous rectifiers. The 15V at 1.5A converter uses a flyback topology. Both converters are operating at 200KHz to keep the efficiency high.
Buck Converter with Minimum Component Count to Drive LEDs (21.5V @ 450mA) - PMP2493.3 - TI Tool Folder
PMP2493: The TPS40200 controller can be used as a low-cost LED driver. With an input voltage rating of 4.5 to 52 V, it can power LED strings with regulated current and up to a 45 V drop across the string. Current is sensed across a resistor between the cathode of the string and ground and is compared against a 696 mV reference to provide regulated current. Because the driver is a buck and not a boost or flyback, an open string will not produce voltages above the input voltage and over-voltage protection is not needed. The driver can operate in either the continuous or discontinuous mode. For output voltages above 35 V the discontinuous mode is needed due to duty cycle limitation above 35 V. The circuit shown has a Pulse Width Modulator (PWM) input for dimming purposes. Targeted current can be set with jumpers.
PMP4529 Active Clamp Forward 3.3V@6A | TI.com
PMP4529: This design functions with the lowest noise and lowest cost isolated active clamp forward converter for telecom use, output 3.3V @6A w/ SR.
Rochester Electronics
分销商编号：
未知
交货地:
港台地区
单价:
- 阶梯 人民币价格(含税) 美元价格
- 25+ - $2.0570
- 100+ - $1.9580
- 500+ - $1.8480
- 1000+ - $1.7490
- 10000+ - $1.6500
请输入数量：
-+
总计:
库存/包装：
24,250
起订量：
25
递增量：
25
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