UC2832-EP

更新时间： 2024-11-04 05:52:39

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
13页	551K
描述
PRECISION LOW DROPOUT LINEAR CONTROLLER

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UC2832-EP 数据手册

UC2832-EP

PRECISION LOW DROPOUT LINEAR CONTROLLER

SGLS147A – JANUARY 2003 – REVISED MARCH 2003

Controlled Baseline

– One Assembly/Test Site, One Fabrication

Site

4.5 V to 36 V Operation

100 mA Output Drive, Source or Sink

Under-Voltage Lockout

Extended Temperature Performance of

–40°C to 105°C

Adjustable Current Limit to Current Sense

Ratio

Enhanced Diminishing Manufacturing

Sources (DMS) Support

Separate +V terminal

Programmable Driver Current Limit

Access to VREF and E/A(+)

Logic-Level Disable Input

Enhanced Product Change Notification

†

Qualification Pedigree

Precision 1% Reference

Over-Current Sense Threshold Accurate to

DW PACKAGE

(TOP VIEW)

Programmable Duty-Ratio Over-Current

Protection

Current Sense(+)

Current Sense(–)

Timer RC

Comp/Shutdown

E/A(+)

†

Component qualification in accordance with JEDEC and industry

standards to ensure reliable operation over an extended

temperature range. This includes, but is not limited to, Highly

Accelerated Stress Test (HAST) or biased 85/85, temperature

cycle, autoclave or unbiased HAST, electromigration, bond

intermetallic life, and mold compound life. Such qualification

testing should not be viewed as justifying use of this component

beyond specified performance and environmental limits.

13 NC

11 NC

+2V REF

GND

ADJ

Logic Disable

Limit

Sink

Source

E/A(–)

NC = No Connect

description

The UC2832 series of precision linear regulators include all the control functions required in the design of very

low dropout linear regulators. Additionally, they feature an innovative duty-ratio current limiting technique which

provides peak load capability while limiting the average power dissipation of the external pass transistor during

fault conditions. When the load current reaches an accurately programmed threshold, a gated-astable timer is

enabled, which switches the regulator’s pass device off and on at an externally programmable duty-ratio. During

the on-time of the pass element, the output current is limited to a value slightly higher than the trip threshold

of the duty-ratio timer. The constant-current-limit is programmable on the UC2832 to allow higher peak current

during the on-time of the pass device. With duty-ratio control, high initial load demands and short circuit

protection may both be accommodated without extra heat sinking or foldback current limiting. Additionally, if the

timer pin is grounded, the duty-ratio timer is disabled, and the IC operates in constant-voltage/constant-current

regulating mode.

TheseIC’sincludea2Volt(±1%)reference, erroramplifier, UVLO, andahighcurrentdriverthathasbothsource

and sink outputs, allowing the use of either NPN or PNP external pass transistors. Safe operation is assured

by the inclusion of under-voltage lockout (UVLO) and thermal shutdown.

‡

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PACKAGE

–40°C to 105°C

SOP – DW

Tape and reel

Tube

UC2832TDWREP

UC2832TDWEP

UC2832TEP

‡

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design

guidelines are available at www.ti.com/sc/package.

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...13

中文翻译

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UC2832-EP 替代型号

型号	品牌	替代类型	描述	数据表
UC2832	TI	功能相似	Precision Low Dropout Linear Controllers
UC3832	TI	功能相似	Precision Low Dropout Linear Controllers

与UC2832-EP相关器件

型号	品牌	获取价格	描述	数据表
UC2832IDWREP	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO16, PLASTIC, SOIC-16
UC2832J	TI	获取价格	暂无描述
UC2832L	TI	获取价格	ADJUSTABLE POSITIVE LDO REGULATOR, CQCC20, CERAMIC, LCC-20
UC2832N	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PDIP14, GREEN, PLASTIC, MS-001AA, DIP-14
UC2832Q	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PQCC20, PLASTIC, LCC-20
UC2832QTR	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PQCC20, PLASTIC, LCC-20
UC2832TDWEP	TI	获取价格	PRECISION LOW DROPOUT LINEAR CONTROLLER
UC2832TDWREP	TI	获取价格	PRECISION LOW DROPOUT LINEAR CONTROLLER
UC2833	TI	获取价格	Precision Low Dropout Linear Controllers
UC2833DW	TI	获取价格	Precision Low Dropout Linear Controllers

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