TPS5100

更新时间： 2024-02-09 10:00:03

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
11页	167K
描述
TRIPLE-CHANNEL PWM CONTROL CIRCUITS

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TPS5100 数据手册

TPS5100

TRIPLE-CHANNEL PWM CONTROL CIRCUITS

SLVS169 – JANUARY 2000

PW PACKAGE

(TOP VIEW)

Low Voltage Operation . . . 2.5 V to 7 V

Low Power . . . 3. 5 mA

(f = 500 kHz, Duty = 50%)

IN-2

E/O3

IN-3

Internal Undervoltage Lockout Protection

Internal Short Circuit Protection

E/O2

IN-1

OUT2

OUT3

OUT1

GND

E/O1

C /R

Wide Operating Frequency . . . 50 kHz to

1 MHz

11 DTC2

Internal Precision Reference . . . 1.25 V ±1%

(25°C)

10 DTC1/3

SCP

REF

On/Off Switch for CH1/3 Pair and Ch2 (see

Function Table)

0 to 100% Dead Time Control

Totem Pole Output Stage

Smal l Package . . . 16 Pin TSSOP

description

The TPS5100 is a triple PWM control circuit, primarily designed to compose the power supply for LCD display.

Each PWM channel has own error amplifier, PWM comparator, dead-time control and output driver. The

trimmed voltage reference, oscillator, undervoltage lockout and short circuit protection are common for all

channels.

This device includes two boost exclusive circuits (ch1,3) and a buck-boost exclusive circuit (ch2). The operating

frequency is set with external resister and capacitor, and dead time is continuously adjustable form 0% to 100%

duty cycle with resistive divider network. Soft start function can be implemented by adding a capacitor to dead

time divider network. Two dead time control inputs are assigned for ch1,3 pair and ch2 individually and each

dead time control input can be used to control on/off operation. TPS5100 can operate from 2.5 V supply voltage

and ch1,3 pair and ch2 operate with reverse phase switching each other to achieve efficient operation in low

power and battery powered system.

The TPS5100 is characterized for operation from –20°C to 85°C.

FUNCTION TABLE

OUTPUT

CONDITION

CH-1

ON H

OFF L

CH-2

ON L

CH-3

ON H

OFF L

DTC1/3 >. 0.3 V, DTC2 > 0.3 V

DTC1/3 > 0.3 V, DTC2 <. 0.2 V

DTC1/3 < 0.2 V, DTC2 > 0.3 V

DTC1/3 < 0.2 V, DTC2 < 0.2 V

OFF H

ON L

OFF H

AVAILABLE OPTIONS

PACKAGE

TSSOP

(PW)

–20°C to 85°C

TPS5100PW

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...11

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与TPS5100相关器件

型号	品牌	获取价格	描述	数据表
TPS5100IPW	TI	获取价格	TRIPLE-CHANNEL PWM CONTROL CIRCUITS
TPS5100IPWR	TI	获取价格	TRIPLE-CHANNEL PWM CONTROL CIRCUITS
TPS5100PW	TI	获取价格	TRIPLE-CHANNEL PWM CONTROL CIRCUITS
TPS5100PWLE	TI	获取价格	SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO16, PLASTIC, TSSOP-16
TPS5100PWR	TI	获取价格	暂无描述
TPS5102	TI	获取价格	DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER
TPS5102_08	TI	获取价格	DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER
TPS51020	TI	获取价格	DUAL, VOLTAGE MODE, DDR SELECTABLE, SYNCHRONOUS, STEP-DOWN CONTROLLER FOR NOTEBOOK SYSTEM
TPS51020DBT	TI	获取价格	DUAL, VOLTAGE MODE, DDR SELECTABLE, SYNCHRONOUS, STEP-DOWN CONTROLLER FOR NOTEBOOK SYSTEM
TPS51020DBTG4	TI	获取价格	DUAL, VOLTAGE MODE, DDR SELECTABLE, SYNCHRONOUS, STEP-DOWN CONTROLLER FOR NOTEBOOK SYSTEM

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