|
|
PDF EMQ8932-00HC24NRR Data sheet ( Hoja de datos )
| Número de pieza | EMQ8932-00HC24NRR | |
| Descripción | 4-Channel Power Management IC | |
| Fabricantes | Elite Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de EMQ8932-00HC24NRR (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
|
No Preview Available !
ESMT/EMP
EMQ8932
4-Channel Power Management IC For
Portable Devices
General Description
The EMQ8932 is a high efficiency, 4-channel power
management IC for portable devices application. It
integrates a complete linear charger for single cell
lithium-ion battery, a linear regulator and two high
efficiency step-down DC/DC converters.
The linear charger (CH1) operates from 4.25V to 5.5V
input voltage and up to 1A charging capability. It is
thermal regulated and specifically designed to work
within USB power specifications.
The linear regulator (CH2) features ultra-high power
supply rejection ratio (75dB at 1kHz), low output voltage
noise (30µV), low dropout voltage (270mV), low
quiescent current (110µA) and fast transient response. It
operates from 2.5V to 5.5V input voltage, up to 600mA
loading capability and regulates adjustable output
voltage from 1.2V to 5.0V.
The two Synchronous Buck converters (CH3, CH4)
operate from 2.5V to 5.5V input voltage, up to
600mA loading capability and regulate adjustable
output voltage from 0.6V to VIN. It features low
quiescent current, fixed 1.5MHz internal frequency
operation.
The EMQ8932 is available in TQFN24 4x4 package,
It is Green compliant (RoHS and Halogen-free).
Features
．Linear Charger
＊ 4.25V to 5.5V Input Voltage
＊ Programmable charge current up to 1A
＊ Thermal regulation maximizes charge rate
without risk of overheating
＊ Act as a LDO when battery is removed
＊ Preset 4.2V charge voltage with ±1%
accuracy
＊ Automatic recharge
＊ Charge status indicator
＊ C/10 charge termination
＊ Battery reverse leakage current less than 1µA
＊ 45µA shutdown supply current
＊ Soft-start limits inrush current
．Linear Regulator
＊ 1.2V to 5.0V Output Voltage
＊ 75dB Typical PSRR at 1kHz
＊ 30µV RMS Output Voltage Noise (10Hz to 100kHz)
＊ 270mV Typical Dropout at 600mA
．Two Synchronous Buck Converters
＊ 0.6V to VIN Output Voltage
＊ Up to 95% Efficiency
＊ Low Dropout Operation: 100% Duty Cycle
＊ No Schottky Diode Needed
．Shutdown Current < 1µA (CH1-CH4)
．Independent Enable PIN(CH1-CH4)
．Independent Input Voltage PIN(CH1-CH4)
．No External Compensation Network needed
．Excellent Line and Load Transient
Response(CH1-CH4)
．Over Current Protection
．Over Temperature Protection
Applications
．Hand-held Instruments
．Portable information applications
．Wireless Networking
．GPS
．MP3/MP4/PMP Multi-media
Elite Semiconductor Memory Technology Inc. /Elite MicroPower Inc.
Publication Date : Oct. 2009
Revision : 1.3
1/26
1 page  
ESMT/EMP
Function Block Diagram
EMQ8932
Elite Semiconductor Memory Technology Inc. /Elite MicroPower Inc.
Publication Date : Oct. 2009
Revision : 1.3
5/26
5 Page 
ESMT/EMP
Preliminary
EMQ8932
CH1 Load Transient (Battery Removed)
VPROG=0.2V, IBAT=2mA~150mA
CH1 Line Transient (Battery Removed)
VPROG=0.2V, IBAT=4mA
5.5
4.5
400μs/DIV
CH1 CHGB Pin Current vs Temperature
(Strong Pull-Down State)
400μs/DIV
CH1 CHGB Pin I-V Curve (Weak Pull-Down State)
VBAT=4V
VCHGB=1V
Temperature (oC)
CH1 CHGB Pin Current vs Temperature
(Weak Pull-Down State)
VBAT=4.3V
VCHGB=5V
VBAT=4.3V
VCHGB (V)
CH1 Trickle Charge Current vs Temperature
VBAT=2.5V
RPROG=2k
Temperature (oC)
Temperature (oC)
Elite Semiconductor Memory Technology Inc. /Elite MicroPower Inc.
Publication Date : Oct. 2009
Revision : 1.3
11/26
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet EMQ8932-00HC24NRR.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| EMQ8932-00HC24NRR | 4-Channel Power Management IC | Elite Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |