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)
Θ
JA
I
BAT
I
LED
T
J
T
S
Symbol
V
in
V
BAT+
V
BAT-
V
LED1
V
LED2
Value
8
7
7
7
7
Continuous
250 (SOT-23-6)
250
20
125
-65 to +125
300
°C/W
mA
mA
°C
°C
°C
Units
V
V
V
V
V
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
V
in
V
Term
V
Float
I
BAT
V
Short
F
OSC
Notes:
#1. When the battary disconnected to the charger, SE9020 disables the internal charging transistor. This will cause the Vbat to float to Vin.
Parameter
Input Supply Voltage
Regulated Output (Terminal)
Voltage
Floating Voltage
BAT Pin Current
Short Circuit Protection Voltage
Flashing Frequency
Conditions
V
in
=6V, I
BAT
= 14mA.
V
in
=6V, I
BAT
= 0. Note
#1.
V
in
=6V，|Vbtp-Vbtn|<3.5V
V
in
=6V，|Vbtp-Vbtn| :3V to 0V
V
in
=6V，|Vbtp-Vbtn|=3.5V
Min
4.75
4.158
Typ
Max
6
Unit
V
V
V
mA
V
Hz
4.2
Vin
250
2.5
5
4.242
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
SEAWARD [ Seaward Electronics Inc. ]
