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LM3502SQ-16

LED Lighting Drivers

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SeekIC No. : 0010840 Detail

LM3502SQ-16: LED Lighting Drivers

LM3502SQ-16 Data Sheet

floor Price/Ceiling Price

US $ .7~.71 / Piece | Get Latest Price
Part Number:
LM3502SQ-16
Mfg:
National Semiconductor (TI)
Supply Ability:
5000

Price Break

  • Qty
  • 0~1000
  • 1000~2000
  • Unit Price
  • $.71
  • $.7
  • Processing time
  • 15 Days
  • 15 Days
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Total Cost: $ 0.00

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Upload time: 2024/11/23

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Product Details

Description

Input Voltage :
Operating Frequency :
Maximum Supply Current :
Output Current :
Maximum Operating Temperature :
Mounting Style :
Package / Case :


Features:

· Drive up to 4, 6, 8 or 10 white LEDs for Dual Display Backlighting
· >80% efficiency
· Output Voltage Options: 16V , 25V , 35V, and 44V
· Input Under-Voltage Protection
· Internal Soft Start Eliminating Inrush Current
· 1 MHz Constant-Switching Frequency
· Wide Input Voltage: 2.5V to 5.5V
· Small External Components
· Low Profile Packages: <1 mm Height
-10 Bump MicroSMD
-16 Pin LLP


Application

· Dual Display BackLighting in Portable Devices
· Cellular Phones and PDAs


Pinout

Connection Diagram


Specifications

VIN Pin −0.3V to +5.5V
Sw Pin −0.3V to +48V
Fb Pin −0.3V to +5.5V
Cntrl Pin −0.3V to +5.5V
VOUT1 Pin −0.3V to +48V
VOUT2 Pin −0.3V to VOUT1
En1 −0.3V to +5.5V
En2 −0.3V to +5.5V
Continuous Power Dissipation Internally Limited
Maximum Junction Temperature (TJ-MAX) +150
Storage Temperature Range −65 to +150
ESD Rating (Note 2)
Human Body Model:
Machine Model:
2 kV
200V



Description

The LM3502SQ-16 is a white LED driver for lighting applications. For dual display or large single white LED string backlighting applications, the LM3502 provides a complete solution. The LM3502 contains two internal whitle LED current bypass FET(Field Effect Transitor) switches that are ideal for controling dual display applications. The while LED current can be adjusted with a PWM signal directly from a microcontroller without the need of an RC filter network.

With no external compensation, cycle-by-cycle current limit, over-voltage protection, and under-voltage protection, the LM3502 offers superior performance over other application specific standard product step-up white LED drivers.




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