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LM353 Pinout Diagram

Part Series:LM353 Series
Category:LED Drivers
Description:TEXAS INSTRUMENTS LM3530UME-40/NOPB Led Driver, I2C, PWM Dimming, 2.7V-5.5V in, 500kHz switch, 40V/29.5mA out, DSBGA-12
Document:LM3533TMX-40/NOPB Datasheet PDF (63 Pages)

LM3530UME-40/NOPB - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Frequency
500 kHz
Number of Pins
12 Pin
Case/Package
XFBGA-12
Number of Outputs
1 Output
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LM3530UME-40/NOPB - TI Function Overview

The LM3530 current mode boost converter supplies the power and controls the current in up to 11 series white LEDs. The 839-mA current limit and 2.7-V to 5.5-V input voltage range make the device a versatile backlight power source ideal for operation in portable applications.
The LED current is adjustable from 0 mA to 29.5 mA via an I2C-compatible interface. The 127 different current steps and 8 different maximum LED current levels give over 1000 programmable LED current levels. Additionally, PWM brightness control is possible through an external logic level input.
The device also features two Ambient Light Sensor inputs. These are designed to monitor analog output ambient light sensors and provide programmable adjustment of the LED current with changes in ambient light. Each ambient light sensor input has independently programmable internal voltage setting resistors which can be made high impedance to reduce power during shutdown. The 500-kHz switching frequency allows for high converter efficiency over a wide output voltage range accommodating from 2 to 11 series LEDs. Finally, the support of Content Adjusted Backlighting maximizes battery life while maintaining display image quality.
The LM3530 operates over the −40°C to 85°C temperature range.
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