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LTC1756

Features: Fully ISO 7816-3 and EMV CompliantBuck-Boost Charge Pump Generates 3V or 5V2.7V to 5.5V Input Voltage Range3V<< 5V Signal Level Translator>10kV ESD on All Smart Card PinsDynamic Pull-Ups Deliver Fast Signal Rise TimesSoft Start Limits Inrush Current at Turn OnVery Low Operating ...

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SeekIC No. : 004401888 Detail

LTC1756: Features: Fully ISO 7816-3 and EMV CompliantBuck-Boost Charge Pump Generates 3V or 5V2.7V to 5.5V Input Voltage Range3V<< 5V Signal Level Translator>10kV ESD on All Smart Card PinsDynamic P...

LTC1756 Data Sheet

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Part Number:
LTC1756
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

Fully ISO 7816-3 and EMV Compliant
Buck-Boost Charge Pump Generates 3V or 5V
2.7V to 5.5V Input Voltage Range
3V<<  5V Signal Level Translator
>10kV ESD on All Smart Card Pins
Dynamic Pull-Ups Deliver Fast Signal Rise Times
Soft Start Limits Inrush Current at Turn On
Very Low Operating Current: 75m A
Shutdown Current: <2.5m A
Short-Circuit and Overtemperature Protected
Available in 16-Pin SSOP Package


Application


Handheld Payment Terminals
Pay Telephones
ATMs
Key Chain Readers
Smart Card Readers


Pinout

Connection Diagram


Specifications

VIN to GND................................................ 0.3V to 6.0V
VCC  to GND.............................................. 0.3V to 5.5V
Digital Inputs to GND......................  0.3V to V IN+ 0.3V
CLK, RST, I/O to GND......................0.3V to VCC  + 0.3V
VCC  Short-Circuit Duration...............................Indefinite

Operating Temperature Range (Note 2)... 40 C to 85 C
Storage Temperature Range.................  65 C to 150 C
Lead Temperature (Soldering, 10 sec)................... 300 C


Description


The LTC (R)1756 universal Smart Card interface is fully compliant with ISO 7816-3 and EMV specifications. It provides the smallest and simplest interface circuit be- tween a host microcontroller and general purpose Smart Cards.

An internal charge pump DC/DC converter pf LTC1756 delivers regu- lated 3V or 5V to the Smart Card, while an on-chip level shifter allows a connection to a low voltage controller. All Smart Card contacts are rated for 10kV ESD, eliminating the need for external ESD protection devices.

Input voltage may range from 2.7V to 5.5V, allowing direct connection to a battery. Automatic DC/DC converter soft start mitigates start-up problems that may result when the input power is provided by another regulator.

Battery life is maximized by 75m A operating current and 2m A shutdown current. The 16-pin SSOP package mini- mizes PCB area for compact portable systems.




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