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DEMO MANUAL DC101
SMART BATTERY CHARGER
LT1511 Level 2, Smart
Battery Charger Demo Board
with SMBus Interface
U
DESCRIPTIO
The DC101 board is a standalone Smart Battery charger
ously monitors the built-in thermistor in the battery. The
that receives Charging Voltage(), Charging Current() and thermistor information is used by the software to inhibit
AlarmWarning() commands from the Smart Battery via charging at temperature extremes and to set charging
the System Management Bus (SMBus) and sets ch
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DEMO MANUAL DC101 SMART BATTERY CHARGER WW SCHE ATIC DIAGRA
2 Smart Battery Charger with SMBus Interface U3
LT1129IST-5 5V 13 BOLD LINES INDICATE HIGH CURRENT PATHS DC OUT V V IN OUT + E3 C2
C17
GND TAB 10μF
R17
E4 J2
0.1μF 10V 5V 2 4 1.05k
CENTER POST
1/10W
IS POSITIVE 1% D1
D2
RED
GRN
S1 R16
D6
R18
RESET (SMB) (μP) R10
BAS16LT1 3.32k
1k
0.05Ω R5
R6
1/10W
R9
1/10W
R26
5V 1/2W 1% 100k 330Ω 330Ω DC IN 1% 10k E1 C10
C11
24V
C8
C9
D3
10
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DEMO MANUAL DC101 SMART BATTERY CHARGER W PACKAGE DIAGRA TOP VIEW GND
1
24
GND
SW
2
23
GND
BOOST
3
22
V CC1
GND
4
21
V CC2
GND
5
20
V CC3
UV
6
19
PROG
LT1511CSW GND
7
18
V
C OVP
8
17
UV OUT
CLP
9
16
GND
CLN
10
15
COMP2
COMP1
11
14
BAT
SENSE 12 13
SPIN
SW PACKAGE
24-LEAD PLASTIC SO WIDE PARTS LIST REFERENCE DESIGNATOR QUANTITY PART NUMBER DESCRIPTION VENDOR TELEPHONE C1, C8, C17, C19 4 12065C104KATMA 0.1μF 50V Chip Capacitor AVX (803) 946-0362 C2,
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DEMO MANUAL DC101 SMART BATTERY CHARGER PARTS LIST REFERENCE DESIGNATOR QUANTITY PART NUMBER DESCRIPTION VENDOR TELEPHONE R5, R6, R14 3 CR32-331J-T 330Ω 1/8W 5% Resistor AVX (803) 946-0524 R7 1 BCR1/8-3322F-T 33.2k 1/8W 1% Resistor Beckman (714) 447-2345 R8 1 LR2010-01-R033-J 0.033Ω 1/2W 5% Resistor IRC (512) 992-7900 R9 1 CR32-104J-T 100k 1/8W 5% Resistor AVX (803) 946-0524 R10 1 LR2010-01-R050-J 0.05Ω 1/2W 5% Resistor IRC (512) 992-7900 R11 1 CR32-511J-T 510Ω 1/8W 5% Resistor AVX (803) 946-052
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DEMO MANUAL DC101 SMART BATTERY CHARGER U OPERATIO Battery Removal, Thermistor Measurements: The START charger periodically checks the thermistor in the battery address (12 hex) through the T-terminal. When the thermistor is out of Charging Current() command code (14 hex), normal operating temperature range, the charger switches current_LSB to trickle charge mode and increases the flashing fre- current_MSB, quency of the green LED to indicate an abnormal charg- address (12 hex) ing condition. Wh
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DEMO MANUAL DC101 SMART BATTERY CHARGER U OPERATIO INIT VARIABLES START INTERRUPT Y THERMISTOR OPEN TURN RED LED ON
Y DISABLE INTERRUPTS 12C DATA RECEIVED FOR 2 SEC
RESET 12C POINTER PUT 12C DATA ON THE
Y THERMISTOR TOO HOT 12C STACK INCREMENT
POINTER Y A/D COUNTER = 0 MEASURE THERMISTOR ENABLE INTERRUPTS Y THERMISTOR
IN RANGE SET ERROR FLAG
Y ALARM WARNING
SHUT DOWN CHARGER
ON STACK ERASE COMMAND RETURN FROM
INTERRUPT Y THERMISTOR
LOAD IPWM
TOO COLD Y ERASE COMMAND
CHARG
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DEMO MANUAL DC101 SMART BATTERY CHARGER UW PCB LAYOUT A D FIL Component Side Silkscreen Component Side Component Side Solder Mask Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of circuits as described herein will not infringe on existing patent rights. 7
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DEMO MANUAL DC101 SMART BATTERY CHARGER UW PCB LAYOUT A D FIL Solder Side Solder Side Solder Mask U PC FAB DRAWI G NUMBER
H A H SYMBOL
DIAMETER
OF HOLES
H A
125
GG 4
A H E D 0.150" B
120
2
C
100
1
H D
94
12
G E
40
14
H E F
39
4
B B H G
37
40
H H 18
55
3.019" H TOTAL HOLES 132 H H C NOTES
1. MATERIAL: 2 LAYERS, 0.062" THICK.
FR-4 GLASS EPOXY 2 OZ COPPER CLAD
H D 2. ALL HOLES SHALL BE PLATED THROUGH
3. PLATE THROUGH HOLES WITH COPPER
D 0.150" 0.0014 MIN TH
