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US251 の電気的特性と機能

US251のメーカーはUnisonic Technologiesです、この部品の機能は「POWER-DISTRIBUTION SWITCHES」です。


製品の詳細 ( Datasheet PDF )

部品番号 US251
部品説明 POWER-DISTRIBUTION SWITCHES
メーカ Unisonic Technologies
ロゴ Unisonic Technologies ロゴ 




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US251 Datasheet, US251 PDF,ピン配置, 機能
UNISONIC TECHNOLOGIES CO., LTD
US251
Preliminary
CURRENT-LIMITED,
POWER-DISTRIBUTION
SWITCHES
CMOS IC
DESCRIPTION
The UTC US251 is a power distribution switch. It is intended for
applications such as USB where heavy capacitive loads and
short-circuits are likely to be encountered. This family offers
multiple devices with fixed current-limit thresholds for applications
between 0.5A and 2A.
The RDS(ON) of the MOSFET switch is as low as 80m. OC is
open-drain output report over-current or over-temperature event
which has deglitch typical 9ms timeout period typically 9ms.
The UTC US251 incorporates protection circuits including
current limiting circuit with foldback function, thermal shutdown
circuit designed to prevent catastrophic switch failure due to
increasing power dissipation when continuous heavy loads or short
circuit occurs. Besides, a built-in charge pump is used to drive the
N-channel MOSFET that is free of parasitic body diode to eliminate
any reversed current flow across the switch when it is powered off.
The UTC US251 is applied in high-side power protection switch,
USB power management, USB host and self-powered bubs, USB
bus-powered hubs, hot plug-in power supplies, battery-charger
circuits.
FEATURES
* Single Power Switch Family
* 80-mHigh-Side MOSFET
* Rated currents of 0.5 A, 1 A, 1.5 A, 2 A
* Accurate, Fixed, Constant Current Limit
* Deglitched Fault Reporting
* Output Discharge When Disabled
* Reverse Current Blocking
* Built-in Softstart
ORDERING INFORMATION
Ordering Number
US251G-xx-AF5-R
US251G-xx-AF5-R
(1)Packing Type
(2)Package Type
(3)Current Limit
(4)Green Package
Package
SOT-25
Packing
Tape Reel
(1) R: Tape Reel
(2) AF5: SOT-25
(3) 08: 0.8mA, 16: 1.6mA, 22: 2.2mA, 29: 2.9mA
(4) G: Halogen Free and Lead Free
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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US251 pdf, ピン配列
US251
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
Enable Input Voltage
VIN -0.3 ~ 6 V
VEN -0.3 ~ 6 V
Flag Voltage
Output Voltage
VEN
VOUT
-0.3 ~ 6
-0.3 ~ 6
V
V
Output Current
Junction Temperature
IOUT Internally Limited A
TJ 150 °C
Storage Temperature
TSTG
-65~ +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
SYMBOL
θJA
RATINGS
250
UNIT
/W
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Input Voltage, IN
Input Voltage, EN or EN
Operating Junction Temperature
Sink Current Into FLT
SYMBOL
VIN
VEN
TJ
IFLT
TEST CONDITIONS
MIN TYP MAX UNIT
3.5 5.5 V
0 5.5 V
-40 125 °C
0 5 mA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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共有リンク

Link :


部品番号部品説明メーカ
US25

RECTIFIERS ASSEMBLIES

Microsemi Corporation
Microsemi Corporation
US251

POWER-DISTRIBUTION SWITCHES

Unisonic Technologies
Unisonic Technologies


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