Datasheet

UNISONIC TECHNOLOGIES CO., LTD
US94061
Preliminary
CMOS IC
HIGH SIDE POWER SWITCHES
„
DESCRIPTION
The UTC US94061 are high-side load switches incorporating a low
on-resistance P-channel MOSFET which provides customers over 2A
continuous current.
The UTC US94061 is characterized by a fast turn on function. The
UTC US94061 keeps in a floating state when an active pull-down
signals is on the enable input until a high level signal applies on the EN
pin. Built-in level shift circuitry allows low voltage logic signals to switch
to higher supply voltages, on the contrary, high level logic signals can
control low level voltages.
The UTC US94061’s operating voltage varies from 1.8V ~ 5.5V
which makes these devices suitable for 1-cell Lithium ion and 2- to
3-cell NiMH/NiCad/Alkaline powered systems as well as all 5V
applications. The 2µA low operating current and low shutdown
current(less than1µA) make the battery life longer.
The UTC US94061 is generally suitable for applications, such as
load switch in portable devices: cellular phones, PDAs, MP3 players,
digital Cameras, portable instrumentation, battery switch-over circuits
and level translators.
„
6
5
4
1
2
3
SOT-26
FEATURES
* Operating voltage range:1.8V ~ 5.5V
* Providing 2A continuous operating current
* P-channel MOSFET’s RON : 175mΩ typical
* Built-in level shift for control logic
* Quiescent current is as low as 2µA
* Micro-power shutdown less than 1µA
* Built-IN Level Shift Circuitry:
Controlled 1µs Turn-ON Rise-Time
Fast 60ns Turn-OFF Fall Time
* Built-IN Fast-OFF Load Discharge Circuit
„
ORDERING INFORMATION
Ordering Number
US94061G-AG6-R
Package
SOT-26
www.unisonic.com.tw
Copyright © 2009 Unisonic Technologies Co., Ltd
Packing
Tape Reel
1 of 6
QW-R502-383.A
US94061
„
„
Preliminary
MARKING
PIN CONFIGURATION
NC
VOUT 1
6
GND 2
5 GND
EN 3
„
CMOS IC
4
VIN
PIN DESCRIPTION
PIN NO.
1
2, 5
3
4
6
PIN NAME
VOUT
GND
EN
VIN
NC
DESCRIPTION
Drain of P-channel MOSFET.
Ground connections. (Should both be connection to electrical ground).
Enable (Input): Active-high CMOS compatible control input. Do not leave floating..
Source of P-channel MOSFET.
No connect
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
Ver.A
US94061
„
Preliminary
CMOS IC
BLOCK DIAGRAM
VIN 4
EN 3
1
Level Shift
Load Discharge
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
VOUT
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Ver.A
US94061
„
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VIN
VEN
Input Voltage
Enable Voltage
Continuous Drain Current (Note 3)
TA= 25°C
TA= 85°C
ID
RATINGS
+6
+6
±2
±1.4
±6
-50
270
UNIT
V
V
RATINGS
240
UNIT
°C/W
A
Pulsed Drain Current (Note 5)
IDP
A
Continuous Diode Current (Note 7)
IS
mA
Power Dissipation (Note 3)( TA= 85°C)
PD
mW
Operating Ratings (Note 2)
Input Voltage Range
VIN
1.8~5.5
V
Junction Temperature
TJ
+150
°C
Storage Temperature (Note 4)
TSTG
-55~+150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„
THERMAL DATA
PARAMETER
Junction to Ambient (Note 3)
„
SYMBOL
θJA
ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Static
EN Threshold Voltage
VTHD(EN)) VIN= 1.8V ~ 4.5V, ID= -250µA
0.5
1.2
V
EN Input Current (Quiescent Current)
IQ(EN)
VIN= VEN= 5.5V
2
4
µA
OFF State Leakage Current
ILEAK
VEN= OPEN or 0V, VIN= +5.5V
1
µA
VIN= 4.5V, ID= -100 mA, VEN= 1.5V
175
200
P-Channel Drain-Source
VIN= 3.6V, ID= -100 mA, VEN= 1.5V
185
215
RDS(ON)
mΩ
On-Resistance
VIN= 2.5V, ID= -100 mA, VEN= 1.5V
205
245
270
325
VIN= 1.8V, ID= -100 mA, VEN= 1.5V
Turn-OFF Impedance
RSHDN
VIN= 3.6V, VEN= 0V or OPEN
200
300
Ω
Dynamic (Note 6)
Turn-ON Delay Time
tD(ON)
VIN= 3.6V, ID= -100mA, VEN= 1.5V
850 1500
ns
Turn-ON Rise Time
tR
VIN= 3.6V, ID= -100mA, VEN= 1.5V
0.5
1
5
µs
Turn-OFF Delay Time
tD(OFF)
VIN= 3.6V, ID= -100mA, VEN= 1.5V
100
150
ns
Turn-OFF Fall Time
tF
VIN= 3.6V, ID= -100mA, VEN= 1.5V
60
100
ns
Note: 1.TA = 25°C unless otherwise noted. Absolute maximum ratings indicate limits beyond which damage to the
component may occur. Electrical specifications do not apply when operating the device outside of its
operating ratings. The maximum allowable power dissipation is a function of the maximum junction
temperature, TJ(Max), the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA.
2. This device is not guaranteed to operate beyond its specified operating rating.
3. Mounted on 1 square-inch pad of 2 oz. copper.
4. IC devices are inherently ESD sensitive. Handling precautions required.
5. Pulse width < 300µs with <2% duty cycle.
6. Dynamic specifications are guaranteed by design.
7. Body diode current conduction is not recommended.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
Ver.A
US94061
„
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
VOUT
GND
1
6
2
5
3
4
NC
GND
LOAD
EN
VIN
+
Load Switch Application with Capacitive Load Discharge
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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US94061
Preliminary
CMOS IC
IOUT
IOUT
VOUT
VOUT
ENABLE
ENABLE
IOUT
IOUT
VOUT
VOUT
ENABLE
ENABLE
TYPICAL CHARACTERISTICS
„
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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Ver.A
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