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參數(shù)資料
| 型號(hào)： | LM3525 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Single Port USB Power Switch and Over-Current Protection |
| 中文描述： | 單端口USB電源開關(guān)和過(guò)電流保護(hù) |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 243K |
| 代理商： | LM3525 |
AC Electrical Characteristics
Limits in standard typeface are for T
J
= 25C, and limits in
boldface
type apply over the full operating temperature range. Un-
less otherwise specified: V
IN
= 5.0V.
Symbol
Parameter
Conditions
OUT Rise Time
R
L
= 10
OUT Fall Time
R
L
= 10
t
ON
Turn on Delay, EN to OUT
R
L
= 10
t
OFF
Turn off Delay, EN to OUT
R
L
= 10
t
OC
Over Current Flag Delay
R
L
= 0
Min
Typ
200
20
200
20
1
Max
Units
μs
μs
μs
μs
ms
t
r
t
f
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
beyond its rated operating conditions. Products are not tested under negative Absolute Maximum conditions.
Note 2:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
(maximum junction temperature),
θ
JA
(junction to am-
bient thermal resistance), and T
(ambient temperature). The maximum allowable power dissipation at any temperature is P
= (T
T
A
)/
θ
JA
or the number
given in the Absolute Maximum Ratings, which ever is lower. The thermal resistance
θ
JA
of the LM3525 in the SO-8 package is 150C/W.
Note 3:
The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin.
Note 4:
Thermal shutdown will protect the device from permanent damage.
Note 5:
For the LM3525-L, OFF is EN
≥
2.4V and ON is EN
≤
0.8V. For the LM3525-H, OFF is EN
≤
0.8V and ON is EN
≥
2.4V
Pin Description
Pin Number
1
Pin Name
EN
(LM3525-L)
EN
(LM3525-H)
FLG
Pin Function
Enable (Input): Logic-compatible enable input.
2
Fault Flag (Output): Active-low, open-drain output. Indicates overcurrent, UVLO and thermal
shutdown.
Ground
Not internally connected.
Supply Input: This pin is the input to the power switch and the supply voltage for the IC.
Switch Output: This pin is the output of the high side switch. Pins 6 & 8 must be tied together.
3
GND
NC
IN
OUT
4, 5
7
6, 8
Typical Application Circuit
DS101055-3
L
www.national.com
4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3525M-L | Single Port USB Power Switch and Over-Current Protection |
| LM3525MX-H | Single Port USB Power Switch and Over-Current Protection |
| LM3525MX-L | Single Port USB Power Switch and Over-Current Protection |
| LM3551SD | 1A White LED Driver with Flash Timeout Protection |
| LM3551SDX | 1A White LED Driver with Flash Timeout Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3525A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PULSE WIDTH MODULATOR |
| LM3525AJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PULSE WIDTH MODULATOR |
| LM3525AN | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PULSE WIDTH MODULATOR |
| LM3525M-H | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM3525M-H | 制造商:Texas Instruments 功能描述:POWER SWITCH USB SMD 3525 SOIC8 |
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