 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LM3533 Datasheet(PDF) 1 Page - Texas Instruments |
|
|
|
|||||||||||||||||||||||||||||
LM3533 Datasheet(HTML) 1 Page - Texas Instruments |
|
|
1 / 63 page  IN SW HVLED1 LVLED1 PGND ALS INT Ambient Light Sensor HWEN SDA SCL COUT CIN L D1 PWM CPOUT CPOUT C- C+ LVLED2 LVLED3 LVLED4 LVLED5 OVP CP VALS VIN = 2.7 V to 5.5 V VOUT up to 40 V VIN HVLED2 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3533 SNOSC68C – APRIL 2012 – REVISED SEPTEMBER 2015 LM3533 Complete Lighting Power Solution for Smartphone Handsets 1 Features 3 Description The LM3533 is a complete power source for 1 • Drives Two Parallel High-Voltage LED Strings for backlight, keypad, and indicator LEDs in smartphone Display and Keypad Lighting handsets. The high-voltage inductive boost converter • High-Voltage Strings Capable of up to 40-V provides the power for two series LED strings for Output Voltage and up to 90% Efficiency display backlight and keypad functions (HVLED1 and HVLED2). The integrated charge pump provides the • Up to 30 mA per Current Sink (Both Backlight and bias for the five low-voltage indicator LED current Indicator) sinks (LVLED1 to LVLED5). All low-voltage current • 14-Bit Equivalent Exponential Dimming With 8-Bit sinks can have a programmable pattern modulated Programmable Backlight Code onto their output current for a wide variety of blinking • Selectable Analog ALS Input with 128 patterns. Programmable Gain-Setting Resistors or PWM Additional features include a pulse width modulation ALS Input With Internal Low-Pass Filter (PWM) control input for content adjustable backlight • PWM Input for Content Adjustable Brightness control (CABC), and an ambient light sensor interface Control (ALS) with an internal 8-bit ADC to provide automatic current adjustment based upon ambient light • Five Low-Voltage Current Sinks for Indicator LEDs conditions. Both the PWM and ALS inputs can be • Integrated Charge Pump for Improved Efficiency used to control any high- or low-voltage current sink. and VIN Operating Range The LM3533 is fully programmable via an I2C- • Internal Pattern Generation Engine compatible interface. The device is available in a • Fully Configurable LED Grouping and Control 20-pin DSBGA and operates over a 2.7-V to 5.5-V • Four Programmable Overvoltage Protection input voltage range and a −40°C to +85°C Thresholds (16 V, 24 V, 32 V, and 40 V) temperature range. • Programmable 500-kHz and 1-MHz Switching Device Information(1) Frequency PART NUMBER PACKAGE BODY SIZE (MAX) • 27-mm2 Total Solution Size LM3533 DSBGA (20) 2.04 mm × 1.78 mm 2 Applications (1) For all available packages, see the orderable addendum at the end of the data sheet. • Power Source for Smart Phone Illumination • Display, Keypad and Indicator Illumination • RGB Indicator Driver Typical Application Circuit 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Similar Part No. - LM3533 |
|
Similar Description - LM3533 |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
