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AP1212HSLA 参数 Datasheet PDF下载

AP1212HSLA图片预览
型号: AP1212HSLA
PDF下载: 下载PDF文件 查看货源
内容描述: 双USB高侧电源开关 [Dual USB High-Side Power Switch]
分类和应用: 电源电路开关电源管理电路电源开关光电二极管
文件页数/大小: 11 页 / 247 K
品牌: ANACHIP [ ANACHIP CORP ]
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AP1212
Dual USB High-Side Power Switch
Features
- Compliant to USB specifications
- Dual independent switches control
- 2.7V to 5.5V input voltage
- 500mA minimum continuous current per port
- 110mΩ typical on-resistance
- 1.25A maximum short circuit current limit
- Independent open-drain fault flag pins
- 110μA typical on-state supply current
- 1μA typical off-state supply current
- Output can be forced higher than input (off-state)
- Thermal shutdown
- 2.4V typical under voltage lockout (UVLO)
- 1ms turn-on (soft-start) and fast turn-off
- Enable active-high (H) or active-low (L)
- 8-pin SOP and PDIP packages
General Description
The AP1212 series are dual integrated high-side
power switch with independent enable and flag
functions, optimized for self-powered and
bus-powered
Universal
Serial Bus (USB)
applications. The AP1212 series support the
following USB requirements: each switch channel
supplies up to 500mA as required by USB
downstream devices; the switch’s low on-resistance
meets USB voltage drop requirements; fault current
is limited to typically 1000mA, well below the UL
25VA safety requirements; and a flag output is
available to indicate fault conditions to the local
USB controller. Soft start eliminates the momentary
voltage drop on the upstream port that may occur
when the switch is enabled in bus-powered
applications.
Additional features include thermal shutdown to
prevent catastrophic switch failure from high-current
loads, under voltage lockout (UVLO) to ensure that
the device remains off unless there is a valid input
voltage present, and 3.3V and 5V logic compatible
enable inputs.
Applications
USB hubs
Hot plug-in power supplies
Battery-charger circuits
Pin Assignments
(Top View)
Pin Descriptions
Name
EN1
EN2
FLG1
FLG2
GND
IN
OUT1
OUT2
Description
Enable: Logic-compatible enable
input. ( H: active high, L: active low).
Do not float.
Fault Flag: Active-low, open-drain
output. Indicates over current,
UVLO, and thermal shutdown.
Supply return.
Supply Input: Output MOSFET drain.
Also supplies IC’s internal circuitry.
Connect to positive supply.
Switch Output: Output MOSFET
source. Typically connect to
switched side of load.
EN1 1
FLG1 2
FLG2 3
EN2 4
PDIP/SOP
AP1212
8 OUT1
7 IN
6 GND
5 OUT2
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 1.0
1/11
Sep.23, 2004