Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
ADP3806JRU-12.6-R7 Datasheet(PDF) 1 Page - Analog Devices |
|
ADP3806JRU-12.6-R7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page REV. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2004 Analog Devices, Inc. All rights reserved. ADP3806 High Frequency Switch Mode Li-Ion Battery Charger FEATURES Li-Ion Battery Charger Three Battery Voltage Options Selectable 12.525 V/16.700 V Selectable 12.600 V/16.800 V Adjustable High End-of-Charge Voltage Accuracy 0.4% @ 25 C 0.6% @ 5 C to 55 C 0.7% @ 0 C to 85 C Programmable Charge Current with Rail-to-Rail Sensing System Current Sense with Reverse Input Protection Soft-Start Charge Current Undervoltage Lockout Bootstrapped Synchronous Drive for External NMOS Programmable Oscillator Frequency Oscillator SYNC Pin Low Current Flag Trickle Charge APPLICATIONS Portable Computers Fast Chargers FUNCTIONAL BLOCK DIAGRAM – gm2 + SELECT 12.6/16.8 BOOTSTRAPPED SYNCHRONOUS DRIVER CS+ OSCILLATOR VREF + VREG UVLO BIAS CS– COMP REF AGND BAT SD CT SW REG PGND VCC BST DRVH DRVL SYS+ SYS– ISYS ISET LOGIC CONTROL LC SYNC LIMIT VREF 2.5V VREF ADP3806 BSTREG BATSEL SD IN DRVLSD VTH DRVLSD – gm1 + + – + – + – AMP1 +– AMP2 +– – + GENERAL DESCRIPTION The ADP3806 is a complete Li-Ion battery-charging IC. The device combines high output voltage accuracy with constant current control to simplify the implementation of constant- current, constant-voltage (CCCV) chargers. The ADP3806 is available in three options: The ADP3806-12.6 guarantees the final battery voltage selected is 12.6 V or 16.8 V ± 0.6%, the ADP3806-12.5 guarantees 12.525 V/16.7 V ± 0.6%, and the ADP3806 is adjustable using two external resistors to set the battery voltage. The current sense amplifier has rail-to-rail inputs to accurately operate under low dropout and short-circuit condi- tions. The charge current is programmable with a dc voltage on ISET. A second differential amplifier senses the system current across an external sense resistor and outputs a linear voltage on the ISYS pin. The bootstrapped synchronous driver allows the use of two NMOS transistors for lower system cost. |
Número de pieza similar - ADP3806JRU-12.6-R7 |
|
Descripción similar - ADP3806JRU-12.6-R7 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes 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 |