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參數資料
| 型號： | UC2834L |
| 英文描述： | DOUBLE CHANNEL HIGH SIDE SOLID STATE RELAY |
| 中文描述： | 積極可調電壓穩壓器 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 377K |
| 代理商： | UC2834L |
UC2832-EP
PRECISION LOW DROPOUT LINEAR CONTROLLER
SGLS147A – JANUARY 2003 – REVISED MARCH 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Controlled Baseline
– One Assembly/Test Site, One Fabrication
Site
Extended Temperature Performance of
–40
°
C to 105
°
C
Enhanced Diminishing Manufacturing
Sources (DMS) Support
Enhanced Product Change Notification
Qualification Pedigree
Precision 1% Reference
Over-Current Sense Threshold Accurate to
5%
Programmable Duty-Ratio Over-Current
Protection
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.
description
4.5 V to 36 V Operation
100 mA Output Drive, Source or Sink
Under-Voltage Lockout
Adjustable Current Limit to Current Sense
Ratio
Separate +V
IN
terminal
Programmable Driver Current Limit
Access to VREF and E/A(+)
Logic-Level Disable Input
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.
These IC’s include a 2 Volt (
±
1%) reference, error amplifier, UVLO, and a high current driver that has both source
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
TA
PACKAGE§
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
–40
°
C to 105
°
C
–40
°
C to 105
°
C
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
SOP – DW
Tape and reel
UC2832TDWREP
UC2832TEP
SOP – DW
Tube
UC2832TDWEP
UC2832TEP
Copyright
2003, Texas Instruments Incorporated
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.
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.
DW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
+V
IN
Comp/Shutdown
E/A(+)
+2V REF
GND
Logic Disable
Limit
Source
Current Sense(+)
Current Sense(–)
Timer RC
NC
V
ADJ
NC
Sink
E/A(–)
NC = No Connect
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| UC2836J | QUAD CHANNEL HIGH SIDE DRIVER |
| UC2836L | QUAD CHANNEL HIGH SIDE DRIVER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| UC2834N | 功能描述:低壓差控制器 - LDO High Efficiency Linear Regulator RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負載調節: 輸出類型:Adjustable, Fixed 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
| UC2834NG4 | 功能描述:低壓差控制器 - LDO High Efficiency Linear Regulator RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負載調節: 輸出類型:Adjustable, Fixed 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
| UC2834Q | 功能描述:低壓差控制器 - LDO Hi Efficiency RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負載調節: 輸出類型:Adjustable, Fixed 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
| UC2834QG3 | 功能描述:低壓差控制器 - LDO Hi Efficiency RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負載調節: 輸出類型:Adjustable, Fixed 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
| UC2834QTR | 功能描述:低壓差控制器 - LDO High Efficiency Linear Regulator RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負載調節: 輸出類型:Adjustable, Fixed 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
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