UCC28089D - TI

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

Part No

UCC28089D
Manufacturer

TI
ChipWorker Part#

CW32713624
Category

DC to DC Converter
Package

SOIC-8
Description

TEXAS INSTRUMENTS UCC28089D. DC-DC Controller, Primary Side, 8.5V to 14V, 1 Output, Buck, 1MHz, SOIC-8
Documentation

Datasheet

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UCC28089D Specifications

Attribute	Attribute Value

Part Number	UCC28089D
Manufacturer	TI
ChipWorker Part#	CW32713624
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Supply Voltage (DC)	8.50V (min)
Number of Outputs	2 Output
Output Current	0.001 A
Number of Positions	8 Position
Power Dissipation	650 mW
Number of Regulated Outputs	2 Output
Rise Time	28 ns
Switching Frequency	1 MHz
Duty Cycle	50 %
Output Current (Max)	1 A
Maximum Duty Cycle	0.5
Fall Time	13 ns
Operating Temperature (Max)	105 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	650 mW
Supply Voltage	8.5V ~ 14V
Supply Voltage (Max)	14 V
Supply Voltage (Min)	8.5 V
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Size-Length	4.9 mm
Size-Width	3.91 mm
Size-Height	1.58 mm
Operating Temperature	-40℃ ~ 105℃
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15

Product Description

The UCC28089D is a versatile BiCMOS Controller for DC to DC or off-line fixed-frequency switching power supplies. The UCC28089 has dual alternating output stages in dual-alternating push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop and duty cycle is limited to less than 50%. It is optimized for use as the primary-side companion controller for a cascaded converter that has secondary-side control. The device incorporates dead-time programming. The synchronization output also provides dead-time information. The retry and soft-start duration scales with the oscillator clock frequency for high performance fault recovery. It also provides primary side under-voltage protection (UVLO) and over-current protection. Both the soft start and retry after fault durations scale with oscillator frequency for high performance. The turn-on/off UVLO thresholds are 10.5/8V.
Push-pull oscillator with programmable deadtime
Can be used in push-pull, half-bridge, or full-bridge topologies
Oscillator synchronization output
Over-current shutdown
Digitally controlled over-current/retry feature
Undervoltage lockout with hysteresis
Green product and no Sb/Br

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