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PDF EUP8202-4.2 Data sheet ( Hoja de datos )
| Número de pieza | EUP8202-4.2 | |
| Descripción | Switch Mode Li-Ion/Polymer Battery Charger | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EUP8202-4.2 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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EUP8202-4.2/8.4
Switch Mode Li-Ion/Polymer
Battery Charger
DESCRIPTION
The EUP8202 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 EUP8202 provides a
small, simple and efficient solution to fast charge one
(4.2V) or two (8.4V) cell lithium-ion batteries.
The EUP8202 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
www.DraetfaeSrheenecte4Us.ectomthe 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
EUP8202 automatically re-starts the charge if the battery
voltage falls below an internal threshold, 4.05V per cell.
The EUP8202 also automatically enters sleep mode when
DC supplies are removed.
The EUP8202 is available in the 8-lead SOP and 10-lead
TDFN packages.
FEATURES
z Wide Input Supply Voltage Range:
4.7V to 20V – 4.2 Version
8.9V to 20V – 8.4 Version
z 500kHz Switching Frequency
z End-of-Charge Current Detection Output
z 3 Hour Charge Termination Timer
z 1% Charge Voltage Accuracy
z 10% Charge Current Accuracy
z Low 10µA Reverse Battery Drain Current
z Automatic Battery Recharge
z Automatic Trickle Charging of Low Voltage
Batteries
z Automatic Sleep Mode for Low Power
Consumption
z Battery Temperature Sensing
z Stable with Ceramic Output Capacitor
z 8-Lead SOP and 10-Lead TDFN Packages
z RoHS Compliant and 100% Lead (Pb)-Free
Typical Operating Performance
APPLICATIONS
z Small Notebook Computer
z Portable DVD
z Handheld Instruments
Efficiency vs Input voltage
100
(Curves include input diode)
95
90
85
80
75
70 EUP8202-8.4
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
EUP8202-4.2
65 VBAT=3.8V
VBAT=4.0V
60
5
10 15
Input Voltage (V)
20
DS8202 Ver 1.1 Nov.2007
1
1 page  
Ordering Information
Order Number
Package Type
EUP8202-42JIR1
TDFN-10
EUP8202-84JIR1
TDFN-10
EUP8202-42DIR1
SOP-8
EUP8202-84DIR1
SOP-8
Marking
xxxxx
P8202
1N
xxxxx
P8202
1P
xxxxx
P8202
1N
xxxxx
P8202
1P
EUP8202-
www.DataSheet4U.com
Lead Free Code
1: Lead Free 0: Lead
Packing
R: Tape & Reel
Operating temperature range
I: Industry Standard
Package Type
J: TDFN
D:SOP
Output Voltage Option
EUP8202-4.2/8.4
Operating Temperature range
-40 °C to 85°C
-40 °C to 85°C
-40 °C to 85°C
-40 °C to 85°C
DS8202 Ver 1.1 Nov.2007
5
5 Page 
Typical Operating Characteristics (continued)
Current Mode Sense Voltage vs Vcc
102
VBAT=4.0V
EUP8202-4.2
100
98
96
94
5
www.DataSheet4U.com
10 15
Vcc (V)
20
Current Mode Sense Voltage vs Vcc
106
VBAT=8V
EUP8202-8.4
104
102
100
98
5
10 15
Vcc (V)
20
EUP8202-4.2/8.4
COMP Pin Output Current vs Vcc
104
VCOMP=1.2V
102
100
98
96
94
5
10 15
Vcc (V)
20
COMP Pin Output Current vs Temperature
120
VCOMP=1.2V
118
116
114
112
110
108
106
104
102
-40
-20
0 20 40 60 80
TEMPERATURE(°C)
100 120
Current Mode Sense Voltage vs Temperature
104
103
102
101
100
99
98
97
96
-40
-20
0 20 40 60 80 100 120
TEMPERATURE(°C)
DS8202 Ver 1.1 Nov.2007
11
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet EUP8202-4.2.PDF ] | |
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