UCC2750DW - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UCC2750DW
Manufacturer

TI
ChipWorker Part#

CW42446786
Category

Interface IC, Interface Controller
Package

SOIC-28
Description

Telecom Ringer Mult Gen Circuit 5V 20Hz/25Hz/50Hz 28Pin SOIC Tube
Documentation

Datasheet

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UCC2750DW Specifications

Attribute	Attribute Value

Part Number	UCC2750DW
Manufacturer	TI
ChipWorker Part#	CW42446786
Category	Interface IC, Interface Controller
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	28 Pin
Case/Package	SOIC-28
Supply Voltage (DC)	4.50V (min)
Supply Current	500 µA
Number of Circuits	1 Circuit
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	5 V
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Size-Height	2.35 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

The UCC3750 Source Ringer Controller provides a complete control and drive solution for a four quadrant flyback-based ring generator circuit. The IC controls a primary side switch, which is modulated when power transfer is taking place from input to output. It also controls two secondary switches which act as synchronous rectifier switches during positive power flow. These switches are pulse-width-modulated when the power is being delivered back to the source.
The UCC3750 has an onboard sine wave reference with programmable frequencies of 20Hz, 25Hz and 50Hz. The reference is derived from a high-frequency (32kHz) crystal connected externally. Two frequency-select pins control an internal divider to give a sinusoidal output at 20Hz, 25Hz or 50Hz. The ring generator can also be used at other frequencies by sup-plying externally generated sine-waves to the chip or by clocking the crystal input at a fixed multiple of the desired frequency.
Other features included in the UCC3750 are programmable DC current limit (with buffer amplifier), a charge-pump circuit for gate drive voltage, internal 3V and 7.5V references, a triangular clock oscillator and a buffer amplifier for adding programmable DC offset to the output voltage. The UCC3750 also provides an uncommitted amplifier (AMP) for other signal processing requirements.

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