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UCC28070

Category:ACDC- and -DCDC-power supply
Product Name:Two-phase interleaved CCM PFC controller
Manufacturers:TI
Production Batch Number:11+
Encapsulation:20SOIC, 20TSSOP
Stock Status:There is stock
Stock Quantity:45000
Minimum order quantity: 1
Details:

Product introduction

UCC28070 is an advanced power factor correction device that integrates two pulse-width modulators (PWM) operating 180°. The input and output ripple currents generated during this interleaved PWM operation are drastically reduced, and EMI filtering becomes easier and cheaper to perform. A significantly improved multiplier design provides a common reference current to ensure that two independent two PWM outputs match the average current mode control current amplifier while maintaining a stable, low-distortion sinusoidal input current.

Includes current UCC28070 containing multiple innovations in synthesizing and quantizing voltage feed-forward to facilitate performance enhancements in PF, efficiency, total harmonic distortion, and transient response.

Device usage

High-efficiency server and desktop power supplies
Telecom rectifiers
White goods and industrial equipment

characteristic

Interleaved average current mode PWM control
The intrinsic of the current match
Advanced current synthesis current sensing
Excellent efficiency
High linear multiplier output with internal quantization
Voltage feed-forward correction is close to the unified provident fund
Programmable frequency (30 kHz to 300 kHz)
Programmable maximum duty cycle clamp
Programmable frequency jitter rate and amplitude
For enhanced EMI reduction
- Magnitude: 3 kHz to 30 kHz
- Rate: up to 30 kHz
External clock synchronization capability
Enhanced load and line pass-through voltage transient response
Amplifier output slew rate correction
Programmable peak current limit
Bias power supply undervoltage lockout, overvoltage protection, open-loop detection,
and PFC to enable monitoring
External PFC - Disable interface
Open circuit protection and VNAC on VSENSE feet
Programmable soft-start
20-pin TSSOP package/SOIC package

parameter

		UCC28070
On/Off of Undervoltage Lockout Threshold (5)		10.2/9.2
Operating power supply (max) (5)		21
Starting current (mA)		20
Operating Supply Current (mA)		20
Vref's (V)		6
Thor of Vref (%)		Three
Duty cycle (max.) (%)		99
Actual operating frequency (max) (MHz)		0.3
Pins/Packets		20SOIC，20TSSOP

andUCC28070Related ICs are:

Model	Manufacturers	lot number	encapsulation	illustrate
UCC28070	TI	11+	20SOIC, 20TSSOP	Two-phase interleaved CCM PFC controller
UCC28070-Q1	TI	09+	TSSOP-16	Automotive class two-phase interleaved CCM PFC controller

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