SE9020C Datasheet, PDF (3/8 Pages) Seaward Electronics Inc. – Standalone Linear Lithium Battery Charger

Absolute Maximum Rating ⁽¹⁾
Parameter
Input Supply Voltage
BAT Voltage
BAT Voltage
LED1
LED2
BAT Short-Circuit Duration
Thermal Resistance, Junction-to-Ambient
BAT Pin Current
LED1/2 Current
Maximum Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
Symbol
V_in
V_BAT+
V_BAT-
V_LED1
V_LED2
Θ_JA
I_BAT
I_LED
T_J
T_S
Value
8
7
7
7
7
Continuous
250 (SOT-23-6)
250
20
125
-65 to +125
300
Units
V
V
V
V
V
°C/W
mA
mA
°C
°C
°C
Operating Rating ⁽²⁾
Parameter
Supply Input Voltage
Junction Temperature
Symbol
V_IN
T_J
Value
+4.75 to +6
-40 to +85
Units
V
°C
Electrical Characteristics
V_IN = 5V; T_J = 25°C; unless otherwise specified.
Symbol
Parameter
Conditions
V_in
Input Supply Voltage
V_Term
Regulated Output (Terminal)
V_in=6V, I_BAT = 14mA.
Voltage
V_Float
Floating Voltage
V_in=6V, I_BAT = 0. Note^#1.
I_BAT
BAT Pin Current
V_in=6V，|Vbtp-Vbtn|<3.5V
V_Short
Short Circuit Protection Voltage V_in=6V，|Vbtp-Vbtn| :3V to 0V
F_OSC
Flashing Frequency
V_in=6V，|Vbtp-Vbtn|=3.5V
Min Typ Max Unit
4.75
6
V
4.158 4.2 4.242 V
Vin
V
250
mA
2.5
V
5
Hz
Notes:
#1. When the battary disconnected to the charger, SE9020 disables the internal charging transistor. This will cause the Vbat to float to Vin.
Revision 2/16/2009
Preliminary and all contents are subject to change without prior notice
© Seaward Electronics Inc., 2007. • www.seawardinc.com.cn • Page 3