Integrated Circuits (ICs)

UCC28089DRG4

Unknown

Texas Instruments

PRIMARY SIDE PWM CONTROLLER 1MA 1000KHZ 8-PIN SOIC T/R

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Integrated Circuits (ICs)

UCC28089DRG4

Unknown

Texas Instruments

PRIMARY SIDE PWM CONTROLLER 1MA 1000KHZ 8-PIN SOIC T/R

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC28089DRG4

Clock Sync	True
Control Features	Frequency Control, Dead Time Control
Duty Cycle (Max) [Max]	50 %
Frequency - Switching [Max]	1 MHz
Function	Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	105 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	False
Topology	Push-Pull
Voltage - Supply (Vcc/Vdd) [Max]	14 V
Voltage - Supply (Vcc/Vdd) [Min]	8.5 V

UCC28089 Series

Primary-side push-pull Oscillator with Dead-Time control

Part	Function	Mounting Type	Package / Case	Package / Case [y]	Package / Case [x]	Clock Sync	Control Features	Output Type	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Output Configuration	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Synchronous Rectifier	Topology	Duty Cycle (Max) [Max]	Frequency - Switching [Max]	Output Phases
Texas Instruments UCC28089D	Step-Up/Step-Down	Surface Mount	8-SOIC	3.9 mm	0.154 in		Dead Time Control Frequency Control	Transistor Driver	2	105 °C	-40 °C	8-SOIC	Isolation Capable Positive	8.5 V	14 V		Push-Pull	50 %	1 MHz	1
Texas Instruments UCC28089DRG4	Step-Up/Step-Down	Surface Mount	8-SOIC	3.9 mm	0.154 in		Dead Time Control Frequency Control	Transistor Driver	2	105 °C	-40 °C	8-SOIC	Isolation Capable Positive	8.5 V	14 V		Push-Pull	50 %	1 MHz	1

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 1.15
		5000	$ 1.10

Description

General part information

UCC28089 Series

The UCC28089 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%.

The UCC28089 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.

The UCC28089 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 V/8.0 V.

Documents

Technical documentation and resources

No documents available