See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

PW | 20

Temp:

Q (-40 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

UCC2897APW


Advanced Current-Mode Active Clamp PWM Controller

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Qty.Price
1 - 9 $ 3.50
10 - 24 $ 3.15
25 - 99 $ 2.93
100 - 249 $ 2.57
250 - 499 $ 2.41
500 - 749 $ 2.05
750 - 999 $ 1.73
1000 - 9999 $ 1.45

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Texas Instruments UCC2897APW

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 DMAX limit, 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.

The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages.

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