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LTC1981

Features: ` No External Components Required` Internal Voltage Triplers Produce High Side Gate Drive for Logic Level FETs` Ultralow Power: 10A Per Driver ON Current (LTC1982) 20A ON Current (LTC1981) <1A Shutdown Current` VCC Range: 1.8V to 5V` Gate Drive Outputs Driven to Ground During Shutdow...

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SeekIC No. : 004401967 Detail

LTC1981: Features: ` No External Components Required` Internal Voltage Triplers Produce High Side Gate Drive for Logic Level FETs` Ultralow Power: 10A Per Driver ON Current (LTC1982) 20A ON Current (LTC1981)...

LTC1981 Data Sheet

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Part Number:
LTC1981
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

` No External Components Required
` Internal Voltage Triplers Produce High Side Gate Drive for Logic Level FETs
` Ultralow Power:
    10A Per Driver ON Current (LTC1982)
    20A ON Current (LTC1981)
    <1A Shutdown Current
` VCC Range: 1.8V to 5V
` Gate Drive Outputs Driven to Ground During Shutdown
` Gate Drive Outputs Internally Clamped to 7.5V Max
` "Gate Drive Ready" Output (LTC1981)
` Ultrasmall Application Circuit
` 5-Pin SOT-23 Package (LTC1981)
` 6-Pin SOT-23 Package (LTC1982)


Application

· Cellular Telephones
· Portable POS Terminal
· Handheld Battery Powered Equipment


Pinout

Connection Diagram


Specifications

Terminal Voltage
   LTC1981: VCC, GATE, SHDN, GDR .............................. 0.3V to 7.5V
   LTC1982: VCC, GATE 1, GATE 2, SHDN 1, SHDN 2 ...... 0.3V to 7.5V
Operating Temperature Range
   LTC1981E/LTC1982E (Note 3) .................................... 40 to 85
Storage Temperature Range ....................................... 65 to 150
Lead Temperature (Soldering, 10 sec)......................................... 300


Description

The LTC®1981/LTC1982 are low-power, self-contained N-channel MOSFET drivers. An internal voltage tripler allows gates to be driven without the use of any external components. Internal regulation circuitry allows quiescent current to drop to 10A per driver (20A for LTC1981) once the gates are charged.

Low quiescent current and low shutdown current (under 1A) make these parts ideal for battery and other power constrained systems. The wide input voltage range accommodates a variety of battery/input configurations.

Gate drive is internally clamped to 7.5V providing protection to the external MOSFET gate. The MOSFETs can be driven in either high side or low side mode.

The LTC1981 single driver version also includes a gate drive ready pin and twice the drive current capacity of the dual driver LTC1982.

The LTC1981 is available in a 5-pin SOT-23. The LTC1982 is available in a 6-pin SOT-23.




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