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PDF US12231 Data sheet ( Hoja de datos )
| Número de pieza | US12231 | |
| Descripción | POWER INTERFACE SWITCH | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de US12231 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
US12231
Preliminary
EXPRESSCARDTM POWER
INTERFACE SWITCH
DESCRIPTION
The UTC US12231 ExpressCardTM power interface switches
are designed to meet the ExpressCardTM specification. The UTC
US12231 distribute 3.3V, AUX, and 1.5V to the single-slot
ExpressCard|34 or ExpressCard|54 sockets. Each voltage rail is
protected with integrated current-limiting circuitry, other functions
include thermal protection circuit turns off switches to prevent
device from damage when heavy overloads or short circuits,
The UTC US12231 can use in notebook computers, desktop
computers, PDAs, and digital cameras.
FEATURES
* Meets the ExpressCardTM standard (ExpressCard|34 or
ExpressCard|54)
* Compliant with the ExpressCardTM compliance checklists
* Fully satisfies the ExpressCardTM implementation guidelines
* Supports systems with WAKE function
* TTL-Logic compatible inputs
* Short circuit and thermal protection
* -40°C ~ 85°C ambient operating temperature range
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
US12231L-P20-T
US12231G-P20-T
US12231L-P20-R
US12231G-P20-R
Package
TSSOP-20
TSSOP-20
CMOS IC
TSSOP-20
Packing
Tube
Tape Reel
※ ExpressCard is a trademark of Personal Computer Memory Card International Association.
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
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US12231
Preliminary
CMOS IC
ELECTRICAL CHARACTERISTICS
TJ=25°C, VI(3.3VIN)=VI(AUXIN)=3.3V, VI(1.5VIN)=1.5V, VI(/SHDNx), VI(/STBYx)=3.3V, VI(/CPPEx)=VI(/CPUSBx)=0V, VI(/SYSRST)=3.3V, OCx and
RCLKENx and PERSTx are open, all voltage outputs unloaded (unless otherwise noted)
PARAMETER
1.5VIN~1.5VOUT
Power Switch Resistance 3.3VIN~3.3VOUT
AUXIN~AUXOUT
Discharge Resistance On 3.3V/1.5V/AUX Outputs
SYMBOL
TEST CONDITIONS
TJ=25°C, I=650mA each
TJ=100°C, I=650mA each
RDS
TJ=25°C, I=1300mA each
TJ=100°C, I=1300mA each
TJ=25°C, I=275mA each
TJ=100°C, I=275mA each
R(DIS_FET) VI(/SHDNx)=0V, I(discharge)=1mA
MIN TYP MAX UNIT
46 70 mΩ
45 mΩ
68
120
mΩ
200
100 500 Ω
1.5VOUT
Short
-Circuit Output Current (Note
1)
Steady-State
Value
3.3VOUT
AUXOUT
0.67 1 1.3 A
IOS
TJ (-40~120°C),
short
Output
powered
into
a
1.35
2
2.5
A
275 450 600 mA
Thermal
Shutdown
Current
-Limit Response Time
Operation Input Quiescent
Current
Trip Point, TJ
Hysteresis
From Short To The 1st
Threshold Within
1.1Times Of Final
Current Limit, TJ=25°C
Normal
Operation
1.5VIN
3.3VIN
AUXIN
Normal
Operation
1.5VIN
3.3VIN
AUXIN
Total Input Quiescent Current
Shutdown
Mode
1.5VIN
3.3VIN
AUXIN
TJ
TJ_OC
∆T
Rising temperature, not in overcurrent
condition
Overcurrent condition
VO(3.3VOUT) with 100-mΩ short
VO(1.5VOUT) with 100-mΩ short
VO(AUXOUT) with 100-mΩ short
155 165
120 130
10
43 100
100 140
38 100
°C
°C
μs
Outputs are unloaded,
II TJ (–40, 120°C) (does not include CPPEx
and CPUSBx logic pullup currents)
Outputs are unloaded,
TJ (–40, 120°C) (include CPPEx
and CPUSBx logic pullup currents)
II CPUSB = CPPE =0V, SHDN =0V
(discharge FETs are on) (include
CPPEx and CPUSBx logic pullup
currents and SHDN pullup current) TJ
(–40, 120°C)
2.5 10
10 15 μA
85 150
2.5 10
10 15
120 210
μA
0.5 10
3.5 10 μA
144 270
Forward Leakage Current
Reverse Leakage Current
1.5VIN
TJ=25°C
TJ=120°C
TJ=25°C
TJ=120°C
TJ=25°C
TJ=120°C
3.3VIN
AUXIN
1.5VIN
3.3VIN
AUXIN
Ilkg(FWD)
SHDN =3.3V, CPUSB = CPPE = 3.3V
(no card present, discharge FETs are on),
current measured at input pins,
TJ=120°C, includes RCLKEN pullup
current
Ilkg(RVS)
VO(AUXOUT)=VO(3.3VOUT)=3.3V,
VO(1.5VOUT)=1.5V, All voltage inputs are
grounded (current measured from output
pins going in)
0.1 50
0.1 50 μA
20 50
0.1 10
μA
50
0.1 10
μA
50
0.1 10
μA
50
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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US12231
Preliminary
TEST CIRCUITS AND VOLTAGE WAVEFORMS
CMOS IC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet US12231.PDF ] | |
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