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LTC4446

Features: `Bootstrap Supply Voltage Up to 114V` Wide VCC Voltage: 7.2V to 13.5V` 2.5A Peak Top Gate Pull-Up Current`3A Peak Bottom Gate Pull-Up Current`1.2 Top Gate Driver Pull-Down` 0.55 Bottom Gate Driver Pull-Down` 5ns Top Gate Fall Time Driving 1nF Load` 8ns Top Gate Rise Time Driving 1nF Load...

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SeekIC No. : 004402609 Detail

LTC4446: Features: `Bootstrap Supply Voltage Up to 114V` Wide VCC Voltage: 7.2V to 13.5V` 2.5A Peak Top Gate Pull-Up Current`3A Peak Bottom Gate Pull-Up Current`1.2 Top Gate Driver Pull-Down` 0.55 Bottom Gat...

LTC4446 Data Sheet

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Part Number:
LTC4446
Supply Ability:
5000

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

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Product Details

Description



Features:

`Bootstrap Supply Voltage Up to 114V
` Wide VCC Voltage: 7.2V to 13.5V
` 2.5A Peak Top Gate Pull-Up Current
`3A Peak Bottom Gate Pull-Up Current
`1.2 Top Gate Driver Pull-Down
` 0.55 Bottom Gate Driver Pull-Down
` 5ns Top Gate Fall Time Driving 1nF Load
` 8ns Top Gate Rise Time Driving 1nF Load
` 3ns Bottom Gate Fall Time Driving 1nF Load
` 6ns Bottom Gate Rise Time Driving 1nF Load
` Drives Both High and Low Side N-Channel MOSFETs
` Undervoltage Lockout
` Thermally Enhanced 8-Pin MSOP Package


Application

· Distributed Power Architectures
· Automotive Power Supplies
· High Density Power Modules
· Telecommunication Systems


Pinout

Connection Diagram


Specifications

Supply Voltage
VCC ......................................................... 0.3V to 14V
BOOST TS ........................................... 0.3V to 14V
TINP Voltage .............................................. 2V to 14V
BINP Voltage .............................................. 2V to 14V
BOOST Voltage ..................................... 0.3V to 114V
TS Voltage ................................................ 5V to 100V
Operating Temperature Range (Note 2)....40to 85
Junction Temperature (Note 3) ............................ 125
Storage Temperature Range ................ 65 to 150
Lead Temperature (Soldering, 10 sec) ................. 300


Description

The LTC®4446 is a high frequency high voltage gate driver that drives two N-channel MOSFETs in a DC/DC converter with supply voltages up to 100V. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitance. The LTC4446's pull-up for the top gate driver has a peak output current of 2.5A and its pull-down has an output impedance of 1.2. The pull-up for the bottom gate driver has a peak output current of 3A and the pull-down has an output impedance of 0.55.

The LTC4446 is confi gured for two supply-independent inputs. The high side input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 114V above ground.

The LTC4446 contains undervoltage lockout circuits that disable the external MOSFETs when activated.

The LTC4446 is available in the thermally enhanced 8-lead MSOP package.

The LTC4446 does not have adaptive shoot-through protection. For similar drivers with adaptive shoot-through protection, please refer to the chart below.




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