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参数资料
| 型号： | LM3544M-H/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | LEAD FREE, SOIC-16 |
| 文件页数： | 8/13页 |
| 文件大小： | 785K |
| 代理商： | LM3544M-H/NOPB |
AC Electrical Characteristics
Limits are for T
J = 25C and VIN = 5.0V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
r
OUT
x Rise Time (Note 5)
C
L = 33 F, ILOAD = 500 mA
1.5
ms
t
f
OUT
x Fall Time (Note 6)
C
L = 33 F, ILOAD = 500 mA
0.9
ms
t
ON
Turn-on Delay (Note 7)
C
L = 33 F, ILOAD = 500 mA
2.9
ms
t
OFF
Turn-off Delay (Note 8)
C
L = 33 F, ILOAD = 500 mA
0.7
ms
t
F
Flag Delay (Note 9)
I
FLAG =10mA
7
ms
Note 5: Time for OUTx to rise from 10% to 90% of its enabled steady-state value after ENx (ENx) is asserted.
Note 6: Time for OUTx to fall from 10% to 90% of its enabled steady-state value after ENx (ENx) is deasserted.
Note 7: Time between ENx rising through VIH (ENx falling through VIL) and OUTx rising through 90% of its enabled steady-state voltage.
Note 8: Time between ENx falling through VIL (ENx rising through VIH) and OUTx falling through 10% of its enabled steady-state voltage.
Note 9: Time between ENx rising through VIN (ENx falling through VIN) and FLAGX falling through 0.3V when OUTX is connected to GND.
Pin Description
Pin Number
Pin Name
Pin Function
2, 6
IN 1, 2
Supply Inputs: These pins are the inputs to the power switches and the supply
input for the IC. In most applications they are connected together externally
and to a single input voltage supply.
1, 5
GND 1, 2
Grounds: Must be connected together and to a common ground.
15, 14, 11, 10
OUT 1, 2, 3, 4
Switch Outputs: These pins are the outputs of the high side switches.
3, 4, 7, 8
LM3544-H: EN 1, 2, 3, 4
(LM3544-L: EN 1, 2, 3, 4)
Enable (Inputs): Active-high (or active-low) logic enable inputs.
16, 13, 12, 9
FLAG 1, 2, 3, 4
Fault Flag (Outputs): Active-low open drain outputs. Indicates over-current,
UVLO or thermal shutdown. See "Application Information" section for more
details.
LM3544
www.national.com
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3544M-L | 功能描述:电源开关 IC - USB RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| LM3544M-L/NOPB | 功能描述:电源开关 IC - USB RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| LM3544MX-H | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Quad Port USB Power Distribution Switch and Over-Current Protection |
| LM3544MX-H/NOPB | 功能描述:IC USB QUAD PORT SWITCH 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电源分配开关 系列:- 特色产品:XRP252 Switches 标准包装:1 系列:- 类型:高端开关 输出数:2 Rds（开）:140 毫欧 内部开关:是 电流限制:1.15A 输入电压:1.75 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN（3x3） 包装:Digi-Reel® 其它名称:1016-1691-6 |
| LM3544MX-L | 功能描述:电源开关 IC - USB RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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