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零件编号 | ACE345 | ||
描述 | Adjustable USB Load Current Switch | ||
制造商 | ACE Technology | ||
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ACE345
Adjustable USB Load Current Switch
Description
The ACE345 is Adjustable USB Load Current Switch Current Limited designed for high-side load
switching applications. The internal current-limiting circuit protects the input supply against large output
short circuit current which may cause the supply to fall out of regulation.
The current limit threshold is programmed with an external resistor from ISET Pin to ground. The
quiescent supply current is typically 150μA, making the device ideal for portable battery-operated
equipment. In shutdown mode, the supply current decreases to less than 0.1μA.
Additional features include thermal shutdown and constant current output characteristics if current
exceed its current limit
Features
2.5 to 5.5V input voltage range
Controlled turn-on
0.15-1.5A adjustable current limit
+/-6% current limit accuracy
0.1ohm on resistance
Fast current limit response time
Logic Control Shutdown (IQ<1uA)
Thermal shutdown and UVLO
Reverse current blocking
Application
Portable Devices
MID, MP4…
Set top boxes
Notebook and PC mother board
USB supplied Devices
Absolute Maximum Ratings
Parameter
Max Unit
Max Input Voltage
6V
Max Operating Junction Temperature(TJ) 125 ℃
Ambient Temperature(TA)
-40~85 ℃
Maximum Power Dissipation
250 mW
Storage Temperature(TS)
-40~150 ℃
ESD (HBM)
>4000 V
Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability.
VER 1.2 1
ACE345
Adjustable USB Load Current Switch
Notes
ACE does not assume any responsibility for use as critical components in life support devices or systems
without the express written approval of the president and general counsel of ACE Electronics Co., LTD.
As sued herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and shoes failure to perform when properly used in
accordance with instructions for use provided in the labeling, can be reasonably expected to result in
a significant injury to the user.
2. A critical component is any component of a life support device or system whose failure to perform can
be reasonably expected to cause the failure of the life support device or system, or to affect its safety
or effectiveness.
ACE Technology Co., LTD.
http://www.ace-ele.com/
VER 1.2 8
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页数 | 8 页 | ||
下载 | [ ACE345.PDF 数据手册 ] |
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