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KAB3405T

Features: `Variable LED Current IF is set with a external resistor : 20 mA (Typ.) @ RSENS = 15`High Efficiency`Output Over Voltage Shutdown`Built in output over voltage protect circuit.`Switching Frequency : 1.0 MHz (Typ.)Application·Back light white LEDs in LCD of PDA, Cellular Phone·Handy Termin...

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SeekIC No. : 004383849 Detail

KAB3405T: Features: `Variable LED Current IF is set with a external resistor : 20 mA (Typ.) @ RSENS = 15`High Efficiency`Output Over Voltage Shutdown`Built in output over voltage protect circuit.`Switching Fr...

KAB3405T Data Sheet

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Part Number:
KAB3405T
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:

`Variable LED Current IF is set with a external resistor
            : 20 mA (Typ.) @ RSENS = 15
`High Efficiency
`Output Over Voltage Shutdown
`Built in output over voltage protect circuit.
`Switching Frequency : 1.0 MHz (Typ.)


Application

·Back light white LEDs in LCD of PDA, Cellular Phone
·Handy Terminal Equipment.


Pinout

Connection Diagram


Specifications

Characteristics Symbol Ratings Unit
Power Supply Voltage

Input Voltage		 VIN

VIN(SHDN)		 -0.3 to +6.0

-0.3 to +VIN + 0.3		 V

V
Switching Terminal Voltage

Switching Terminal Current		 VO (SW)

IO (SW)		 -0.3 to 40

1500		 V

mA
Power Dissipation PD 0.41 (Device)
0.47(on PCB)Caution 2		 W
Thermal Resistance Rth(j-a) 300(Device)
260(on PCB)		 /W
Operation Temperature Range

Storage Temperature Range

Maximum Junction Temperature		 Topr

Tstg

Tj		 -40 to +85

-55 to +150

150




Caution 2: Power Dissipation must be calculated with subtraction of 3.8 mW/ from Maximum
                 Rating with every 1 if Topr is upper 25 . (on PCB)


Description

KAB3405T is a high efficient Step-Up Type DC/DC Converter specially designed for constant current drive of White LED. This IC can drive 2-10 white LEDs connected series using a Li-ion Battery. This IC contains N-ch MOS-FET Transistor for Coil-Switching, and LED Current (IF) is set with an external resistor.




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