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PDF EUP8202-42DIR1 Data sheet ( Hoja de datos )
| Número de pieza | EUP8202-42DIR1 | |
| Descripción | Switch Mode Li-Ion/Polymer Battery Charger | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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EUP8202-4.2/8.4/8.4A
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
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
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
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
3 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
Support up to 3A Charge Current
8-Lead SOP and 10-Lead TDFN Packages
RoHS Compliant and 100% Lead (Pb)-Free
Halogen-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 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 1.3 May 2012
1
1 page  
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
EUP8202-4.2/8.4/8.4A
Ordering Information
Order Number
Package Type
EUP8202-42JIR1
TDFN-10
EUP8202-84JIR1
TDFN-10
EUP8202-84AJIR1
TDFN-10
EUP8202-42DIR1
SOP-8
EUP8202-84DIR1
SOP-8
EUP8202-84ADIR1
SOP-8
Marking
xxxxx
P8202
1N
xxxxx
P8202
1P
xxxxx
P8202
1PA
xxxxx
P8202
1N
xxxxx
P8202
1P
xxxxx
P8202
1PA
Operating Temperature Range
-40 °C to 85°C
-40 °C to 85°C
-40 °C to 85°C
-40 °C to 85°C
-40 °C to 85°C
-40 °C to 85°C
EUP8202-□□□ □ □ □ □
Lead Free Code
1: Lead Free, Halogen Free
Packing
R: Tape & Reel
Operating temperature range
I: Industry Standard
Package Type
J: TDFN
D:SOP
Output Voltage Option
DS8202 Ver 1.3 May 2012
5
5 Page 
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Typical Operating Characteristics (continued)
EUP8202-4.2/8.4/8.4A
Current Mode Sense Voltage vs Vcc
102
VBAT=4.0V
EUP8202-4.2
100
98
96
94
5
10 15
Vcc (V)
20
COMP Pin Output Current vs Vcc
104
VCOMP=1.2V
102
100
98
96
94
5
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
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 80 100 120
TEMPERATURE(°C)
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 1.3 May 2012
11
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet EUP8202-42DIR1.PDF ] | |
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