 |
Datenblatt-Suchmaschine für elektronische Bauteile |
|
|
Datenblatt-Suchmaschine für elektronische Bauteile |
|
LP5521 Datenblatt(PDF) 11 Page - Texas Instruments |
|
|
|||||||||||||||||||||||||||||
LP5521 Datenblatt(HTML) 11 Page - Texas Instruments |
|
|
11 / 51 page  PROGRAM MEMORY I 2C CHARGE PUMP 1x/1.5x COUT 1 µF CIN 1 µF LP5521 0.47 µF CFLY1 CFLY2 SCL SDA CLK_32K INT ADDR_SEL0 ADDR_SEL1 TRIG EN VDD GND VOUT R G B GPO D A IDAC VDD VOUT Control BIAS REF TSD POR OSC MCU CLK DET VOUT VOUT VDD_ IO Command based PWM pattern generator 0.47 µF Copyright © 2016, Texas Instruments Incorporated 11 LP5521 www.ti.com SNVS441I – JANUARY 2007 – REVISED NOVEMBER 2016 Product Folder Links: LP5521 Submit Documentation Feedback Copyright © 2007–2016, Texas Instruments Incorporated 7 Detailed Description 7.1 Overview The LP5521 is a three-channel LED driver designed to produce variety of lighting effects for mobile devices. A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device has a program memory for creating variety of lighting sequences. When program memory has been loaded, the LP5521 can operate autonomously without processor control allowing power savings. The device maintains excellent efficiency over a wide operating range by automatically selecting proper charge pump gain based on LED forward voltage requirements. the LP5521 is able to automatically enter power-save mode, when LED outputs are not active and thus lowering current consumption. Three independent LED channels have accurate programmable current sources and PWM control. Each channel has program memory for creating desired lighting sequences with PWM control. The LP5521 has a flexible digital interface. A trigger I/O and 32-kHz clock input allow synchronization between multiple devices. Interrupt output can be used to notify processor, when LED sequence has ended. LP5521 has four pin-selectable I2C-compatible addresses. This allows connecting up to four parallel devices in one I2C- compatible bus. GPO and INT pins can be used as a digital control pin for other devices. The LP5521 requires only four small and low-cost ceramic capacitors. Comprehensive application tools are available, including command compiler for easy LED sequence programming. 7.2 Functional Block Diagram |
|
Link URL |
| War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Link zum Datenblatt | Linktausch | Hersteller 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 |
German ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
