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AT1313

Features: •Operating Voltage:2.5V~5.5V•High Operating Frequency: 1.4MHz•High Output Voltage: Up to 18V•Shutdown Current <1A•18V Output Over-voltage protection•Digital Dimming Control.•Built-in Cycle-by Cycle Current-limiting.•Built-in Soft-Start F...

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SeekIC No. : 004289250 Detail

AT1313: Features: •Operating Voltage:2.5V~5.5V•High Operating Frequency: 1.4MHz•High Output Voltage: Up to 18V•Shutdown Current <1A•18V Output Over-voltage protection•...

AT1313 Data Sheet

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Part Number:
AT1313
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: 2024/11/12

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Product Details

Description



Features:

•Operating Voltage:2.5V~5.5V
•High Operating Frequency: 1.4MHz
•High Output Voltage: Up to 18V
•Shutdown Current <1A
•18V Output Over-voltage protection
•Digital Dimming Control.
•Built-in Cycle-by Cycle Current-limiting.
•Built-in Soft-Start Function.
•0.2V Low Reference Voltage
•Tiny SOT-26 Package


Application

• LED Module
• Compact Back Light Module
• Constant Current Source


Pinout

Connection Diagram


Specifications

Parameter
Rated Value
Unit
VIN voltage
-0.3 to +6.0
V
LX , OVP voltage
-0.3 to +18
V
EN , FB to GND
-0.3 to +6.0
V
Switch Current (ILX)
1.2
A
Continuous power dissipation (SOT-26 Ta=+25)
0.35
W
Operating Junction Temperature Range
-35 to 85
Lead Temperature (Soldering 5 sec)
260
Storage Temperature
-65 to 125
Package Thermal Resistance (JA)
250
/W
ESD Susceptibility (HBM)
2
KV
ESD Susceptibility (MM)
200
V

Note1:Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Exposure to absolute maximum rating conditions for extended periods may affect device reliability




Description

The AT1313 step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices.AT1313 features allowing series connection of the white LEDs so that the LED currents are identical for uniform brightness. An enable input can be pulsed repeatedly to adjust LED's brightness. The fast 1.4 MHz current-mode PWM control allows for smaller capacitor and inductor. Fault condition protection uses cycle-by-cycle current limiting to sense maximum inductor current, thermal protection and over-voltage protection. Also AT1313 included soft-start eliminates inrush current during start-up. The 0.2V low reference voltage minimized the power loss across the current-setting resistor.

The AT1313 is available in 6-pin SOT-26 packages




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