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参数资料
| 型号： | LM2794BL/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, 675 kHz SWITCHING FREQ-MAX, PBGA14 |
| 封装： | LEAD FREE, CSP-14 |
| 文件页数： | 9/16页 |
| 文件大小： | 487K |
| 代理商： | LM2794BL/NOPB |
Connection Diagram
20028523
Bottom View
Ordering Information
Standard Micro SMD Package:
Order Number
Shutdown Polarity
Package Number
Package
Marking
Supplied As
LM2794BL
Active Low
BLP14EHB
I LOG
250 Units, Tape and Reel
LM2794BLX
Active Low
BLP14EHB
I LOG
3000 Units, Tape and Reel
LM2795BL
Active High
BLP14EHB
I LOJ
250 Units, Tape and Reel
LM2795BLX
Active High
BLP14EHB
I LOJ
3000 Units, Tape and Reel
Thin Micro SMD Package:
Order Number
Shutdown Polarity
Package Number
Package
Marking
Supplied As
LM2794TL
Active Low
TLP14EHA
I LOG
250 Units, Tape and Reel
LM2794TLX
Active Low
TLP14EHA
I LOG
3000 Units, Tape and Reel
LM2795TL
Active High
TLP14EHA
I LOJ
250 Units, Tape and Reel
LM2795TLX
Active High
TLP14EHA
I LOJ
3000 Units, Tape and Reel
Pin Description
Pin(*)
Name
Function
A1
C1+
Positive terminal of C1
B2
C1
Negative terminal of C1
C1
V
IN
Power supply voltage input
D2
GND
Power supply ground input
E1
C2
Negative terminal of C2
E3,E5,E7,D6
D14
Current source outputs. Connect directly to LED
C7
I
SET
Current Sense Input. Connect 1% resistor to ground to set constant current through LED
B6
BRGT
Variable voltage input controls output current
A7
SD
The LM2794 has an active-low shutdown pin (LOW = shutdown, HIGH = operating). The
LM2795 has an active-high shutdown pin (HIGH = shutdown, LOW = operating) that has a
pull-up to V
IN.
A5
C2+
Positive terminal of C2
A3
P
OUT
Charge pump output
(*) Note that the pin numbering scheme for the Micro SMD package was revised in April, 2002 to conform to JEDEC standard. Only the pin numbers were revised.
No changes to the physical location of the inputs/outputs were made. For reference purpose, the obsolete numbering had C1+ as pin 1, C1- as pin 2, VIN as pin
3, GND as pin 4, C2- as pin 5, D1-D4 as pin 6,7,8 & 9, Iset as pin 10, BRGT as pin 11, SD as pin 12, C2+ as pin 13, Pout as pin 14
LM2794/LM2795
www.national.com
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2794BLX | 制造商:Texas Instruments 功能描述: |
| LM2794EVAL | 功能描述:电源管理IC开发工具 EVAL KIT FOR LM2794 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LM2794TL | 功能描述:IC LED DRVR WHT BCKLT 14MICROSMD RoHS:否 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| LM2794TL/NOPB | 功能描述:LED照明驱动器 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| LM2794TLX | 功能描述:IC LED DRVR WHT BCKLT 14USMD RoHS:否 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
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