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LTC4215-1

Features: · Allows Safe Insertion into Live Backplane· 8-Bit ADC Monitors Current and Voltage· I2C/SMBus Interface· Wide Operating Voltage Range: 2.9V to 15V· dI/dt Controlled Soft-Start· Three General Purpose Outputs· High Side Drive for External N-channel MOSFET· No External Gate Capacitor Requi...

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SeekIC No. : 004402480 Detail

LTC4215-1: Features: · Allows Safe Insertion into Live Backplane· 8-Bit ADC Monitors Current and Voltage· I2C/SMBus Interface· Wide Operating Voltage Range: 2.9V to 15V· dI/dt Controlled Soft-Start· Three Gene...

LTC4215-1 Data Sheet

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Part Number:
LTC4215-1
Supply Ability:
5000

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

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Product Details

Description



Features:

· Allows Safe Insertion into Live Backplane
· 8-Bit ADC Monitors Current and Voltage
· I2C/SMBus Interface
· Wide Operating Voltage Range: 2.9V to 15V
· dI/dt Controlled Soft-Start
· Three General Purpose Outputs
· High Side Drive for External N-channel MOSFET
· No External Gate Capacitor Required
· Input Overvoltage/Undervoltage Protection
· Optional Latchoff or Auto-Retry After Faults
· Alerts Host After Faults
· Inrush Current Limit with Foldback
· Available in 24-Pin (4mm × 5mm) QFN


Pinout

Connection Diagram


Specifications

Supply Voltage (VDD) ......................... 0.3V to 24V
Supply Voltage (INTVCC) .................. 0.3V to 6.5V
Input Voltages
GATE-SOURCE (Note 3) ....................... 0.3V to 5V
SENSE+, SENSE ........... VDD 0.3V to VDD + 0.3V
SOURCE ................................................ 5V to 24V
EN, FB, ON, OV, UV ............................. 0.3V to 12V
ADR0, ADR1, TIMER,
ADIN, SS ............................ 0.3V to INTVCC + 0.3V
GPIO2, GPIO3, SCL, SDA, SDAI, SDAO 0.3V to 6.5V
Output Voltages
GATE, GPIO1 ....................................... 0.3V to 24V
GPIO2, GPIO3 .................................... 0.3V to 6.5V
Operating Temperature Range
LTC4215C-1 ............................................ 0 to 70
LTC4215I-1 ........................................ 40 to 85
Storage Temperature Range
QFN ...................................................65 to 125


Description

The LTC4215-1 Hot Swap™ controller allows a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, board supply voltage and inrush current are ramped up at an adjustable rate.  An I2C interface and onboard ADC of LTC4215-1 allow for monitoring of load current, voltage and fault status.

The LTC4215-1 features adjustable foldback current limit and a soft-start pin that sets the dI/dt of the inrush current. An I2C interface may confi gure the part to latch off or automatically restart after the LTC4215-1 detects a current limit fault.

The controller LTC4215-1 has additional features to interrupt the host when a fault has occurred, provide three general purpose outputs, notify when output power is good, detect insertion of a load card, and power-up either automatically upon insertion or wait for an I2C command to turn on.




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