AT1312C

Features: •Operating Voltage:2.5V to 6.0V.•High Operating Frequency: 1MHz•High Output Voltage: Up to 28V/23V/16V•Shutdown Current <1A•28V/23V/16V Output Over-Voltage Protection•Digital Dimming Control.•Built-in Cycle-by Cycle Current-Limiting.•Bui...

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SeekIC No. : 004289249 Detail

AT1312C: Features: •Operating Voltage:2.5V to 6.0V.•High Operating Frequency: 1MHz•High Output Voltage: Up to 28V/23V/16V•Shutdown Current <1A•28V/23V/16V Output Over-Voltage...

floor Price/Ceiling Price

Part Number:
AT1312C
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:

•Operating Voltage:2.5V to 6.0V.
•High Operating Frequency: 1MHz
•High Output Voltage: Up to 28V/23V/16V
•Shutdown Current <1A
•28V/23V/16V 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 +6.5
V
LX , OVP voltage
-0.3 to +28
V
EN , FB to GND
-0.3 to +6.5
V
Switch Current (ILX)
0.6
A
Continuous power dissipation (SOT-26 Ta=+25)
0.35
W
Operating Junction Temperature Range
-30 to 85
Lead Temperature (Soldering 5 sec)
260
Storage Temperature
-65 to 125
Package Thermal Resistance (JA)
250
/W
ESD Susceptibility*2 HBM
2
KV
MM
200
V

1. Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
2. Device are ESD sensitive. Handling precaution recommended. The Human Body model is a 100pF capacitor discharged through a 1.5K resistor into each pin.




Description

The AT1312A/B/C step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices. AT1312C 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 1.0 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 AT1312C 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 AT1312A/B/C is available in 6-pin SOT-26 packages.




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