KB4313

Features: •Operating Voltage:2.4V~6.5V•High Operating Frequency: 1.5MHz•High Efficiency: Up to 95%•High Output Voltage: Up to 34V(max)•High Output Power: Up to 12W(Vin=12V)•Shutdown Current <1􀁐A•16V Output Over-voltage protection (min)•Di...

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KB4313 Picture
SeekIC No. : 004384124 Detail

KB4313: Features: •Operating Voltage:2.4V~6.5V•High Operating Frequency: 1.5MHz•High Efficiency: Up to 95%•High Output Voltage: Up to 34V(max)•High Output Power: Up to 12W(Vin=...

floor Price/Ceiling Price

Part Number:
KB4313
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: 2024/4/28

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Product Details

Description



Features:

•Operating Voltage:2.4V~6.5V
•High Operating Frequency: 1.5MHz
•High Efficiency: Up to 95%
•High Output Voltage: Up to 34V(max)
•High Output Power: Up to 12W(Vin=12V)
•Shutdown Current <1􀁐A
•16V Output Over-voltage protection (min)
•Digital Dimming Control.
•Built-in Cycle-by Cycle Current-limiting.
•Built-in Soft-Start Function.
•0.2V Low Reference Voltage(3%)
•Tiny SOT23-6 Package



Application

• LED Module
• LED Backlight for LCD Display(7 ~21 )
• Constant Current Source􀀡
• USB host



Pinout

  Connection Diagram


Specifications

Parameter
Rated Value
Unit
VIN voltage
-0.3 to +6.5
V
LX , OVP voltage
-0.3 to +35
V
EN , FB to GND
-0.3 to +6.5
V
Switch Current (ILX)
1.4
A
Continuous power dissipation (SOT23-6 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 KB4313 step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices. It 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 1.5 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 included soft-start eliminates inrush current during start-up. The 0.2V low reference voltage minimized the power loss across the current-setting resistor.




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