AP1212 Power Switch Datasheet

AP1212 Datasheet, PDF, Equivalent


Part Number

AP1212

Description

Dual USB High-Side Power Switch

Manufacture

Anachip

Total Page 11 Pages
Datasheet
Download AP1212 Datasheet


AP1212
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

AP1212
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


Features Dual USB High-Side Power Switch AP1212 „ Features - Compliant to USB specifi cations - Dual independent switches con trol - 2.7V to 5.5V input voltage - 500 mA minimum continuous current per port - 110mΩ typical on-resistance - 1.25A maximum short circuit current limit - I ndependent open-drain fault flag pins - 110μA typical on-state supply current - 1μA typical off-state supply curren t - Output can be forced higher than in put (off-state) - Thermal shutdown - 2. 4V typical under voltage lockout (UVLO) - 1ms turn-on (soft-start) and fast tu rn-off - Enable active-high (H) or acti ve-low (L) - 8-pin SOP and PDIP package s „ Applications • USB hubs • Hot plug-in power supplies • Battery-char ger circuits „ General Description Th e AP1212 series are dual integrated hig h-side power switch with independent en able and flag functions, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. The AP12 12 series support the following USB requirements: each switch channel suppl.
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