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SE9016 Datasheet Preview

SE9016 Datasheet

Standalone Linear Lithium Battery Charger

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SE9016 pdf
Description
Features
SE9016 is a complete constant-current &
constant voltage linear charger for single cell
lithium-ion and Lithium-Polymer batteries. Its
SOT-23 package and low external component count
make SE9016 ideally suited for portable
applications. Furthermore, the SE9016 is
specifically designed to work within USB power
specification. At the same time, SE9016 can also
be used in the standalone lithium-ion and
Lithium-polymer battery chargers.
No external sense resistor is needed, and no
blocking diode is required due to the internal
MOSFET architecture.
Thermal feedback
regulates the charge current to limit the die
temperature during high power operation or high
ambient temperature. The charge voltage is fixed
at 4.2V, and the charge current can be programmed
externally with a single resistor. The SE9016
automatically terminates the charge cycle when the
charge current drops to 1/10th the programmed
value after the final float voltage is reached.
When the input supply (wall adapter or USB
supply) is removed, the SE9016 automatically
enters a low current stage, dropping the battery
drain current to less than 2uA. The SE9016 can
be put into shutdown mode, reducing the supply
current to 20uA.
Other features include charge current monitor,
undervoltage lockout, automatic recharge and a
status pin to indicate charge termination and the
presence of an input voltage. SE9016 is
intentionally designed to have slightly negative
Tempco. This provides extra protection to Lithium
battery during charging.
¾ Programmable Charge Current Up to 800mA.
¾ No MOSFET, Sense Resistor or Blocking Diode
Required.
¾ Constant-Current/Constant-Voltage Operation
with Thermal Protection to Maximize Charge
Rate without Risk of Overheating.
¾ Charges Single Cell Li-Ion Batteries Directly
from USB Port.
¾ Preset 4.2V Charge Voltage with ±1% Accuracy.
¾ 20uA Supply Current in Shutdown.
¾ 2.9V Trickle Charge Threshold
¾ Soft-Start Limits Inrush Current.
¾ Available in 5-Lead SOT-23 Package.
¾ RoHS Compliant and 100% Lead (Pb)-Free
Application
¾ Cellular Telephones, PDA’s, MP3 Players.
¾ Charging Docks and Cradles
¾ Bluetooth Applications
Application Diagram
Pin Configuration



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SE9016 Datasheet Preview

SE9016 Datasheet

Standalone Linear Lithium Battery Charger

No Preview Available !

SE9016 pdf
Absolute Maximum Rating (1)
Parameter
Input Supply Voltage
PROG Voltage
BAT Voltage
CHRG Voltage
BAT Short-Circuit Duration
Thermal Resistance, Junction-to-Ambient
BAT Pin Current
PROG Pin Current
Maximum Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
Symbol
VCC
VPROG
VBAT
VCHRG
ΘJA
IBAT
IPROG
TJ
TS
Value
7
VCC+0.3
7
7
Continuous
250
800
800
125
-65 to +125
300
Units
V
V
V
V
°C/W
mA
μA
°C
°C
°C
Operating Rating (2)
Parameter
Supply Input Voltage
Junction Temperature
Symbol
VIN
TJ
Value
-0.3 to +7
-40 to +85
Units
V
°C
Electrical Characteristics
VIN = 5V; TJ = 25°C; unless otherwise specified.
Symbol
Parameter
Conditions
VCC Input Supply Voltage
ICC Input Supply Current
Charge Mode(3), RPROG = 10k
Standby Mode (Charge Terminated)
VFLOAT
Regulated Output (Float) Voltage
Shutdown Mode(RPROG Not Connected,
VCC < VBAT, or VCC < VUV)
IBAT = 30mA, ICHRG = 5mA
IBAT BAT Pin Current
RPROG = 10k, Current Mode
RPROG = 2k, Current Mode
Standby Mode, VBAT = 4.2V
ITRIKL
VTRIKL
Trickle Charge Current
Trickle Charge Threshold Voltage
Shutdown Mode (RPROG Not Connected)
Sleep Mode, VCC = 0V
VBAT < VTRIKL, RPROG = 10k
RPROG = 10k, VBAT Rising
Min
4.25
4.158
90
0
2.8
Typ
110
70
20
4.2
110
500
+/-1
+/-0.5
+/-1
10
2.9
Max Unit
6V
500 µA
µA
40 µA
4.242
130
+/-5
+/-5
+/-5
3.0
V
mA
mA
µA
µA
µA
mA
V


Part Number SE9016
Description Standalone Linear Lithium Battery Charger
Maker ETC
Total Page 8 Pages
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