Linear DC101 Demo Manual

U
DESCRIPTIO
The DC101 board is a standalone Smart Battery charger
that receives Charging Voltage(), Charging Current() and
AlarmWarning() commands from the Smart Battery via
the System Management Bus (SMBus) and sets charging
current and voltage accordingly. The charger continu-
W U
PERFOR A CE SU
PARAMETER
Input Voltage
Input Current
Output Current
Output Voltage
Thermistor Resistance
BLOCK DIAGRA
DC101 Smart Battery Charger
+ R10
FROM
WALL
LT1129 5V
CUBE
–
®
LT 1511
CHARGER
Q2
Q3
W W
ARY
CONDITIONS
Hardware Limited
Software Limited
Software Limited
Ni-MH Battery
Li-Ion Battery
U
W
A D BOARD PHOTO
SYSTEM CURRENT
5V
SMB P
26 14
PIC16C73
SHUTDOWN
15
Q1 11
2
VOLTAGE PWM
13
CURRENT PWM
12
DEMO MANUAL DC101
SMART BATTERY CHARGER
LT1511 Level 2, Smart
Battery Charger Demo Board
with SMBus Interface
ously monitors the built-in thermistor in the battery. The
thermistor information is used by the software to inhibit
charging at temperature extremes and to set charging
strategy for different battery chemistries.
, LTC and LT are registered trademarks of Linear Technology Corporation.
DC OUT
GND
+
C SMBus
CLOCK (SCL)
D SMBus
DATA (SDA)
T THERMISTOR
–
BATTERY
CONNECTOR
DC101 BD
MIN TYP MAX
16 24 27
2
0 2.5
4 20
3 30
0.5 1 1.5
Component Side
UNIT
V
A
A
V
k
k
1