AP1212HN 반도체 회로 부품 판매점
Dual USB High-Side Power Switch
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 ETC |
Dual USB High-Side Power Switch
AP1212
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
Applications
• USB hubs
• Hot plug-in power supplies
• Battery-charger circuits
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.
Pin Assignments
(Top View)
EN1 1
FLG1 2
FLG2 3
EN2 4
AP1212
8 OUT1
7 IN
6 GND
5 OUT2
PDIP/SOP
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.
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 Sep.23, 2004
1/11
Dual USB High-Side Power Switch
AP1212
Ordering Information
AP 12 1 2 X X X X
Power Switch
Block Diagram
Enable
H: Active-High
L: Active-Low
Package
S:SOP-8
N:PDIP-8L
Lead Free
Blank : Normal
L : Lead Free Package
Packing
Blank : Tube
A: Taping
OUT1
FLG1
EN1
EN2
FLG2
Charge
Pump
Thermal
Shutdown
Charge
Pump
Driver
Current
Limit
UVLO
Current
Limit
Driver
CS
IN
CS
Absolute Maximum Ratings (Note 1)
Symbol
VIN
VFLG
IFLG
VOUT
VEN
TST
TLEAD
ESD Rating
Parameter
Supply Voltage
Fault Flag Voltage
Fault Flag Current
Output Voltage
Control Input Range
Storage Temperature
Lead Temperature
Note 3
OUT2
Rating
+7
+7
50
+7
–0.3 to VIN +2
-65 to +150
260
4
Unit
V
V
mA
V
V
oC
oC
KV
Anachip Corp.
www.anachip.com.tw
Rev. 1.0 Sep.23, 2004
2/11
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AP1212HN data
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[ AP1212HN.PDF ]
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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