Datasheet > AMS2027

AMS2027

更新时间： 2024-02-11 02:44:06

品牌	Logo	应用领域
ADMOS		开关
页数	文件大小	规格书
5页	49K
描述
SINGLE POWER DISTRIBUTION SWITCH

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AMS2027 数据手册

Advanced

Monolithic

Systems

AMS2027

SINGLE POWER DISTRIBUTION SWITCH

PRELIMINARY INFORMATION

FEATURES

· 110mW Typical (5V Input) High Side MOSFET Switch · 100mA Maximum On-State Supply Current

· Short Circuit Protection

· Available Active-High or Active-Low Enable

· Logic Overcurrent Output Error Flag

· Logic Undervoltage Output Error Flag

· Logic Overheat Output Error Flag

· Enable Input Compatible With 3V and 5V Logic

· Controlled Rise and Fall Times Limit Current

Surges and Minimize EMI

· Available in Space Saving 8 lead SOIC and 8 Lead PDIP

APPLICATIONS

· USB Power Management

· Hot Plug-In Power Supplies

· Battery-Charger Circuits

· Undervoltage Lock-Out Guarantees the Switch is

Off At Start-up

PRODUCT DESCRIPTION

The AMS2027 is a power distribution switch intended for application where heavy capacitive loads and short-circuits are

likely to be encountered. The high-side switch is a 110mW N-channel MOSFET. The switch is controlled by a logic enable

input compatible with 3V and 5V logic and is available in active-high or active-low enable. The internal charge pump,

designed to control the power switch rise and fall time to minimize current surges during switching, also provides the gate

drive. Requiring no external components the charge pump allows operation from supplies as low as 3.3V. When an overload

or a short circuit is encountered the AMS2027 limits the output current to a safe level by switching into a constant-current

mode and the overcurrent logic output error flag is set to a low. The power dissipation in the switch will be increased by

continuous heavy overloads and short circuits; this will cause the junction temperature to rise. The thermal protection circuit

shuts the power switch off to prevent damage. Once the device has cooled sufficiently, it will turn on automatic. An under

voltage lock-out is provided to insure that the power switch is in the Off state at start-up.

The AMS2027 is offered in the 8 lead SOIC package and the 8 lead PDIP package and is rated operational over a -40°C to

85°C temperature range.

ORDERING INFORMATION

PACKAGE TYPE

PIN CONNECTIONS

8 LEAD SOIC/ 8LEAD PDIP

OPER. TEMP

8 LEAD SOIC

AMS2027S

8 LEAD PDIP

AMS2027P

RANGE

ENABLE

ERROR

GROUND

N/C

OUTPUT

INPUT

OUTPUT

N/C

-40°C to 85°C

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

12 3 4 5

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