|
|
PDF EUP8207-4.2 Data sheet ( Hoja de datos )
| Número de pieza | EUP8207-4.2 | |
| Descripción | Switch Mode Li-Ion/Polymer Battery Charger | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de EUP8207-4.2 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
|
No Preview Available !
EUP8207-4.2/8.4/8.4A
Switch Mode Li-Ion/Polymer
Battery Charger
DESCRIPTION
The EUP8207 is a constant current, constant voltage
Li-Ion battery charger controller that uses a current mode
PWM step-down (buck) switching architecture. With a
500kHz switching frequency, the EUP8207 provides a
small, simple and efficient solution to fast charge one
(4.2V) or two (8.4V) cell lithium-ion batteries.
The EUP8207 charges the battery in three phases:
conditioning, constant current, and constant voltage. An
external sense resistor sets the charge current with ±10%
accuracy. An internal resistor divider and precision
reference set the final float voltage to 4.2V per cell with ±
1% accuracy. An internal comparator detects the near
end-of-charge condition while an internal timer sets the
total charge time and terminates the charge cycle. The
EUP8207 automatically re-starts the charge if the battery
voltage falls below an internal threshold, 4.05V per cell.
The EUP8207 also automatically enters sleep mode when
DC supplies are removed.
The EUP8207 is available in the 8-lead SOP and 10-lead
TDFN packages.
FEATURES
Wide Input Supply Voltage Range:
4.8V to 20V – 4.2 Version
8.9V to 20V – 8.4 Version
8.9V to 20V – 8.4A Version
500kHz Switching Frequency
End-of-Charge Current Detection Output
7 Hour Charge Termination Timer
±1% Charge Voltage Accuracy
±10% Charge Current Accuracy
Low 10µA Reverse Battery Drain Current
Automatic Battery Recharge
Automatic Trickle Charging of Low Voltage
Batteries
Automatic Sleep Mode for Low Power
Consumption
Battery Temperature Sensing
Stable with Ceramic Output Capacitor
8-Lead SOP and 10-Lead TDFN Packages
RoHS Compliant and 100% Lead (Pb)-Free
Typical Operating Performance
APPLICATIONS
Small Notebook Computer
Portable DVD
Handheld Instruments
Efficiency vs Input voltage
100
(Curves include input diode)
95
90
85
80
75
70 EUP8207-8.4
VBAT=7.0V
65 VBAT=8.0V
60
8
10 12 14 16 18
Input Voltage (V)
20
Efficiency vs Input voltage
100
(Curves include input diode)
95
90
85
80
75
70
EUP8207-4.2
65 VBAT=3.8V
VBAT=4.0V
60
5
10 15
Input Voltage (V)
20
DS8207 Ver 1.1 May 2011
1
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet EUP8207-4.2.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| EUP8207-4.2 | Switch Mode Li-Ion/Polymer Battery Charger | Eutech Microelectronics |
| 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 |