UCC28070

所属类别：ACDC-和-DCDC-电源
产品名称：二相交错 CCM PFC 控制器
厂商：TI
生产批号：11+
封装：20SOIC, 20TSSOP
库存状态：有库存
库存量：45000
最低订购量：1
详细资料：

Product Introduction

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

Including current UCC28070 contains synthetic and quantized voltage feedforward to facilitate multiple innovations in PF, efficiency, total harmonic distortion performance enhancement and transient response.

Device application

Efficient server and desktop power supplies
Telecom rectifiers
White goods and industrial equipment

characteristic

Staggered 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 feedforward correction is close to the unified provident fund
Programmable frequency (30 kHz to 300 kHz)
Programmable maximum duty cycle clamping
Programmable frequency, jitter rate and amplitude
To enhance the reduction of EMI
- Magnitude: 3 kHz to 30 kHz
- Rate: up to 30 kHz
External clock synchronization capability
Enhanced load and line respond through voltage transients
Amplifier output slew rate correction
Programmable peak current limit
Bias power supply undervoltage lockout, overvoltage protection, open-loop detection,
and PFC, so that it can be monitored
External PFC - Disable interface
Open circuit protection and VSENSE feet on VINAC
Programmable soft start
20-pin TSSOP package/SOIC package

parameter

		UCC28070
On/off of undervoltage lockout threshold (5)		10.2/9.2
Working power supply (max) (five)		21
Starting Current (mA)		20
Operating Supply Current (mA)		20
Vref (V)		6
Vref's Thor (%)		Three
Duty Cycle (Max) (%)		99
Actual operating frequency (max) (MHz)		0.3
Pin/Pack		20SOIC，20TSSOP

UCC28070-related ICs include:

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

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