UCC2897PWRG4

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Texas Instruments

IC REG CTRLR MULT TOP 20TSSOP

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UCC2897PWRG4

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Texas Instruments

IC REG CTRLR MULT TOP 20TSSOP

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Description Specifications Series Pricing CAD Documents

Description

General part information

UCC2897 Series

The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.

The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.

Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.

Technical Specifications

Parameters and characteristics for this part

Specification	UCC2897PWRG4

Clock Sync	Yes
Control Features	On Time Control, Enable, Soft Start
Duty Cycle (Max)	74 %
Frequency - Switching	250 kHz
Function	Step-Up, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	105 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package Length	0.173 in
Package Name	20-TSSOP
Package Width	4.4 mm
Synchronous Rectifier	Yes
Topology	Forward Converter, Flyback
Voltage - Supply (Vcc/Vdd) Maximum	14.5 V
Voltage - Supply (Vcc/Vdd) Minimum	8.5 V

UCC2897 Series

110-V active clamp current mode PWM controller with P-channel clamp FET and line OV protection

Part	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Package Name	Function	Number of Outputs	Package Length	Package Width	Duty Cycle (Max)	Clock Sync	Output Type	Mounting Type	Output Configuration	Frequency - Switching	Topology	Output Phases	Synchronous Rectifier	Control Features	Package / Case
Texas Instruments UCC2897PWR	105 °C	-40 °C	8.5 V	14.5 V	20-TSSOP	Step-Down Step-Up	1	0.173 in	4.4 mm	74 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Enable On Time Control Soft Start
Texas Instruments UCC2897ARGPT	125 °C	-40 °C	8.5 V	16 V	20-QFN	Step-Down Step-Up	1	4 mm	4 mm	70 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Current Limit Enable Soft Start	20-VFQFN Exposed Pad
Texas Instruments UCC2897PWRG4	105 °C	-40 °C	8.5 V	14.5 V	20-TSSOP	Step-Down Step-Up	1	0.173 in	4.4 mm	74 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Enable On Time Control Soft Start
Texas Instruments UCC2897PWG4	105 °C	-40 °C	8.5 V	14.5 V	20-TSSOP	Step-Down Step-Up	1	0.173 in	4.4 mm	74 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Enable On Time Control Soft Start
Texas Instruments UCC2897APW	125 °C	-40 °C	8.5 V	16 V	20-TSSOP	Step-Down Step-Up	1	0.173 in	4.4 mm	70 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Current Limit Enable Soft Start
Texas Instruments UCC2897RTJR	105 °C	-40 °C	8.5 V	14.5 V	20-QFN	Step-Down Step-Up	1	4 mm	4 mm	74 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Enable On Time Control Soft Start	20-WFQFN Exposed Pad
Texas Instruments UCC2897ARGPR	125 °C	-40 °C	8.5 V	16 V	20-QFN	Step-Down Step-Up	1	4 mm	4 mm	70 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Current Limit Enable Soft Start	20-VFQFN Exposed Pad
Texas Instruments UCC2897RTJT	105 °C	-40 °C	8.5 V	14.5 V	20-QFN	Step-Down Step-Up	1	4 mm	4 mm	74 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Enable On Time Control Soft Start	20-WFQFN Exposed Pad
Texas Instruments UCC2897PW	105 °C	-40 °C	8.5 V	14.5 V	20-TSSOP	Step-Down Step-Up	1	0.173 in	4.4 mm	74 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Enable On Time Control Soft Start
Texas Instruments UCC2897APWR	125 °C	-40 °C	8.5 V	16 V	20-TSSOP	Step-Down Step-Up	1	0.173 in	4.4 mm	70 %	Yes	Transistor Driver	Surface Mount	Isolation Capable Positive	250 kHz	Flyback Forward Converter	1	Yes	Current Limit Enable Soft Start

Pricing

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CAD

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