lx2206 Microsemi Corporation, lx2206 Datasheet - Page 2

• Manufacturer Part Number: lx2206
• Description: Dual Level Lithium Ion Battery Charger
• Manufacturer: Microsemi Corporation

Copyright © 2007
Rev. 1.3a, 2007-08-28
DCOK
Supply Input Voltage (IN, BAT) ...................................................................... -0.3V to 7V
All other pins ............................................................................................-0.3V to V
Battery Charging Current .............................................................................................1.1A
Operating Temperature Range .........................................................................-40 to 150°C
Maximum Operating Junction Temperature .............................................................. 150°C
Storage Temperature Range.........................................................................-65°C to 150°C
Lead Temperature (Soldering 10 seconds)................................................................. 300°C
Package Peak Temp. for Solder Reflow (40 seconds maximum exposure) ... 260°C (+0 -5)
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to
Junction Temperature Calculation: T
The θ
above assume no ambient airflow.
Name
STAT
CMP
GND
HCP
TMP
BAT
LCP
LD
H/L
SD
IN
THERMAL RESISTANCE
JA
Ground. Currents are positive into, negative out of specified terminal
TM
numbers are guidelines for the thermal performance of the device/pc-board system. All of the
Plastic Micro Leadframe Package 10-Pin
Battery – Connect to a single cell Lithium Ion Battery.
Compensation – Connect the series combination of a 1k resistor and a 0.47µF capacitor from CMP to IN.
Power status logic pin and LED driver – This pin is an open drain output that can sink 20mA of current to drive an
external LED. This pin is low impedance to GND when the Input voltage is high enough to charge the Battery.
Ground – Connect to the system ground plane. Use sufficient via copper area to allow for thermal conduction
from the IC to the GND plane.
High Current Programming (and Termination Current Programming) – Connect a resistor to ground to set the
constant current high level. The termination current is set to 1/10 of the High Current Programming Level.
For a value of 19.6K, the High Current is 460mA and the Termination Current is 46mA.
High or Low load select logic input – A logic high selects the constant charge current level set by the HCP pin
resistor and a logic low selects the constant charge current level set by the LCP pin resistor
Input Power – Connect to a wall adapter or a USB power plug.
Low Current Programming – Connect a resistor to ground to set the constant current low level.
For a value of 110K, the Low Current is 92mA.
Shutdown – A logic high places the LX2206 in sleep mode; can also be used for USB suspend.
Charging status logic pin and LED driver – This pin can source or sink 10mA of current to drive an external LED
in either output state. This pin is low (current sinking mode) when the battery is in charging mode and becomes
high (current sourcing mode) when the charge cycle is finished. It becomes a high impedance when the input
power is removed.
Battery Temperature Monitor – This sense pin determines the battery temperature for charging out of
temperature range lockout and is connected to a resistor network as defined in the Applications section. The
TMP pin is grounded if this function is not used.
A B S O L U T E M A X I M U M R A T I N G S
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
-
JUNCTION TO
T H E R M A L D A T A
J
= T
A
+ (P
F U N C T I O N A L P I N D E S C R I P T I O N
D
x θ
A
JA
MBIENT
).
Analog Mixed Signal Group
, θ
®
Microsemi
JA
Description
.
Dual Level Lithium Ion Battery Charger
33°C/W
SUPPLY
P
RODUCTION
`
DCOK
STAT
CMP
RoHS / Pb-free 100% matte Tin Pin Finish
SD
D
IN
P A C K A G E P I N O U T
ATA
S
1
2
3
4
5
xxxx = Denotes date and
LD P
lot code Identification
HEET
Part Marking
BOTTOM PAD
ACKAGE
(Top View)
C
TO
ONNECT
GND
P
INOUT
LX2206
10
9
8
7
6
BAT
TMP
HCP
LCP
H/L
Page 2