UCC3588

更新时间： 2024-11-25 22:52:39

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
11页	182K
描述
5-Bit Programmable Output BiCMOS Power Supply Controller

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中文翻译

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数据手册
替代型号

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UCC3588 数据手册

UCC3588

PRELIMINARY

5-Bit Programmable Output BiCMOS Power Supply Controller

FEATURES

DESCRIPTION

• 5-Bit Digital-to-Analog Converter

(DAC) supports Intel Pentium II

The UCC3588 synchronous step-down (Buck) regulator provides accurate

high efficiency power conversion. Using few external components, the

UCC1588 converts 5V to an adjustable output ranging from 3.5VDC to

2.1VDC in 100mV steps and 2.05VDC to 1.3VDC in 50mV steps with 1%

DC system accuracy. A high level of integration and novel design allow this

16-pin controller to provide a complete control solution for today’s

demanding microcontroller power requirements. Typical applications

include on board or VRM based power conversion for Intel Pentium II

microprocessors, as well as other processors from a variety of

manufacturers. High efficiency is obtained through the use of synchronous

rectification.

• Microprocessor VID Codes

• Compatible with 5V or 12V Systems

• 1% Output Voltage Accuracy

Guaranteed

• Drives 2 N-Channel MOSFETs

• Programmable Frequency to 800kHz

• Power Good OV / UV / OVP Voltage

Monitor

The softstart function provides a controlled ramp up of the system output

voltage. Overcurrent circuitry detects a hard (or soft) short on the system

output voltage and invokes a timed softstart/shutdown cycle to reduce the

PWM controller on time to 5%.

• Undervoltage Lockout and Softstart

Functions

• Short Circuit Protection

• Low Impedance MOSFET Drivers

• Chip Disable

The oscillator frequency is externally programmed with RT and operates

over a range of 50kHz to 800kHz. The gate drivers are low impedance to-

tem pole output stages capable of driving large external MOSFETs. Cross

conduction is eliminated by fixed delay times between turn off and turn on

of the external high side and synchronous MOSFETs. The chip includes

undervoltage lockout circuitry which assures the correct logic states at the

outputs during power up and power down.

(continued)

APPLICATION DIAGRAM

12V IN

5V IN

C15

150µF

C16

10µF

10K

3Ω

UCC3588

IRL3103

VCC

DRVHI

0.003Ω

1.6µH

DRVLO 14

C8-C12 1500µF

PWRGOOD

VOUT

C1-C4

1500µF

C1 C2 C3 C4

3Ω

ISNS

IRL3103

VSENSE

VFB

220pF

200k

COMP

C14

150µF

C10

C11

C12

C7 22pF

D1 D2

SS/ENBL

GND

15k

20k

33nF

47k

C13

1nF

RTN

UDG-98158

SLUS311 - JULY 1999

12 3 4 5 6 7...11

中文翻译

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UCC3588 替代型号

型号	品牌	替代类型	描述	数据表
UCC3882-1	TI	功能相似	Average Current Mode Synchronous Controller With 5-Bit DAC

与UCC3588相关器件

型号	品牌	获取价格	描述	数据表
UCC3588-1DW	TI	获取价格	1A SWITCHING CONTROLLER, 700kHz SWITCHING FREQ-MAX, PDSO20, SOIC-20
UCC3588-1J	TI	获取价格	1A SWITCHING CONTROLLER, 700kHz SWITCHING FREQ-MAX, CDIP16, CERAMIC, DIP-16
UCC3588-1N	TI	获取价格	1A SWITCHING CONTROLLER, 700kHz SWITCHING FREQ-MAX, PDIP16, PLASTIC, DIP-16
UCC3588-1PW	TI	获取价格	1A SWITCHING CONTROLLER, 700kHz SWITCHING FREQ-MAX, PDSO16, TSSOP-16
UCC3588D	TI	获取价格	5-BIT PROGRAMMABLE OUTPUT BICMOS POWER SUPPLY CONTROLLER
UCC3588DTR	ETC	获取价格	Voltage-Mode SMPS Controller
UCC3588DTRG4	TI	获取价格	1A SWITCHING CONTROLLER, 800kHz SWITCHING FREQ-MAX, PDSO16, GREEN, SOIC-16
UCC3588DW	TI	获取价格	1A SWITCHING CONTROLLER, 800kHz SWITCHING FREQ-MAX, PDSO20, SOIC-20
UCC3588J	TI	获取价格	5-BIT PROGRAMMABLE OUTPUT BICMOS POWER SUPPLY CONTROLLER
UCC3588N	TI	获取价格	5-BIT PROGRAMMABLE OUTPUT BICMOS POWER SUPPLY CONTROLLER

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