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LINEAR TECHNOLOGY  LT3497EDDB#TRMPBF  Led Driver, 2 Outputs, Boost (Step Up), 2.5V-10V in, 2.3MHz switch, 35V/200mA out, DFN-10

LINEAR TECHNOLOGY LT3497EDDB#TRMPBF
Manufacturer Part No:
LT3497EDDB#TRMPBF
Order Code:
1715222
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT3497EDDB#TRMPBF is a dual full function step-up DC/DC Converter specifically designed to drive up to 12 white LEDs from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors and expensive factory calibration. The two independent converters are capable of driving asymmetric LED strings. Accurate LED dimming and shutdown of the two LED strings can also be controlled independently. The LT3497 features unique high-side LED current sense that enables the part to function as a one wire current source, one side of the LED string can be returned to ground anywhere, allowing a simpler 1-wire LED connection. Traditional LED drivers use a grounded resistor to sense LED current, requiring a 2-wire connection to the LED string. The 2.3MHz switching frequency allows the use of tiny inductors and capacitors.
  • Two independent boost converters capable of driving asymmetric LED strings
  • Internal Schottky diodes
  • ±5% Reference accuracy
  • Dual wide 250:1 True Colour PWMTM Dimming
  • Requires only 1µF output capacitor per converter

Product Information

Device Topology:
Boost (Step Up)
No. of Outputs:
2Outputs
Output Current:
200mA
Output Voltage:
35V
Driver Case Style:
DFN
No. of Pins:
10Pins
Input Voltage Min:
2.5V
Input Voltage Max:
10V
Switching Frequency:
2.3MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Consumer Electronics;
  • Computers & Computer Peripherals;
  • Portable Devices;
  • Audio

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.0001

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