Linear Technology DC1614A Quick setup guide
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DC1614A
ANALOG DEVICES
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1
dc1614af
DEMO MANUAL DC1614A
compatible with this charger. The optional DC1223A-B
SMBus-to-RS232 Serial port adapter and associated
software can be used to monitor a smart battery for dem-
onstration purposes only. Contact your Linear Technology
representative to order a DC1223A-B.
DC1614 features an optional circuit for sealed lead acid
(SLA) batteries for constant-voltage charging with tem-
perature compensation and fast/float voltage toggling.
DC1614 also features layout for extra components and
external gate drivers for improved efficiency at higher
charge currents.
This demo board is capable of supporting the LTC4012 and
LTC4012-3 with a simple IC swap-out. See the Schematic
Diagram.
Design files for this circuit board are available at
http://www.linear.com/demo
DESCRIPTION
LTC4012
High Current High Efficiency
Multi-Chemistry Battery Charger
with PowerPath Control
Demonstration circuit 1614 features the LTC4012CUF, a
multi-chemistry single battery charger controller with
PowerPath™ control. The input supply voltage is 13.5V to
20V and is initially configured for a current limit of 10A.
The charger float voltage is programmed by jumpers to
support 1- to 4- series cells of both Li-Ion/Polymer and
Li-iron phosphate (LiFePO4) at 4.2V/cell and 3.6V/cell,
for a total of eight settings. The demo board is initially
configuredforconstant-voltagechargingofa12.6VLi-Ion/
Polymer battery and constant-current charging at 8A,
though current derating may be necessary due to certain
operating conditions.
Charging can be enabled/disabled by properly setting
the shutdown jumper. LED indicators for CHG, ICL, ACP,
and C/10 display the current state of the charger system.
Although this charger is not a smart battery charger, a
popular smart battery connector is provided that can be
used for further data-logging with the optional DC1223A-B
demo board and software. Note that a smart battery is not
required to use this board; however, smart batteries are
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
PERFORMANCE SUMMARY
PARAMETER CONDITIONS VALUE
Minimum Input Voltage VIN > VBAT Float Voltage 13.5VMIN When Using 12.6V Li-Ion/Polymer. Recommend 15V
Maximum Input Voltage Limited by Input Capacitor Voltage Rating 20V
Input Current Limit Set by R1 (100mV/R1) 10ADC ±4%
Default Float Voltage VBAT Jumper Selectable: 4.2V/Cell or 3.6V/Cell 12.6V ±1%
Maximum Charge Current VIN > VBAT 8ADC ±5%
Specifications are at TA= 25°C.
2
dc1614af
DEMO MANUAL DC1614A
QUICK START PROCEDURE
Demonstration circuit 1614 is easy to set up to evaluate
the performance of LTC4012. Refer to Figure 1 for proper
measurement equipment setup and follow the procedure
below.
1. With all power off, connect an input power supply
capable of more than 10A, system load, battery, and
meters as shown in Figure 1. Preset the load to 0A and
VIN to 0V, 0A current limit. The input supply voltage
must be greater than the full voltage value of the battery
to allow a full charge to take place.
2. Connect the jumpers as shown below for normal LED-
indicated operation:
JP2 JP3 JP4 JP5
Shutdown VCC Select Internal VCC LED PWR
THM INT ON ON
3. Connect the system load to VOUT and GND terminals.
4. Connect the jumper JP1 for the specific battery to be
tested.
5. Turn the input power supply on, setting the current limit
up to 10A. Adjust the voltage to the desired value, up
to 20V.
6. Plug in the battery. An industry-standard 5-pin AMP
smart battery connector is provided for convenience.
The board will automatically charge a battery upon
insertion and detection of a thermistor. Optionally
set jumper JP2 to ON to charge a battery without a
thermistor.
7. Turn the load on and adjust as necessary. At 10A input,
the input current will limit and the ICL LED will turn
on. Note that above a certain load setting, depending
on your VIN and battery voltage, the charger will start
to decrease charge current until the system load is
consuming all of the current from the input. For 15V
input and 12.6VBAT setting this will occur at about 3.3A.
8. Optionally evaluate the SLA circuit, removing the
jumper on JP1, as well as R14. The voltage feedback
network can now be customized to match the battery
manufacturer’s specifications. The SLA circuit can be
found in the bottom left-hand corner on the top side
of the board.
9. Optionally use the provided DC1223A-B demonstra-
tion software to configure and communicate with the
DC1614A, connecting DC1223A-B as in Figure 1.
10.For improved efficiency at high charge currents, install
additional MOSFETs in Q8 and Q10 positions and/or
gate driver circuit transistors and supply capacitors
in Q7, Q9, C21, and C25. These components may be
installed on the bottom side of the board.
3
dc1614af
DEMO MANUAL DC1614A
Figure 2. Efficiency Comparison with and without External Gate Drivers at 15VIN, 18VIN, and 24VIN
IBAT (A)
0
EFFICIENCY (%)
100
91
99
97
95
93
98
96
94
92
90 537
dc1614a F02a
948261
12.6VBAT
EXT. GATE DRIVERS DISABLED (R9 = R12 = 0)
Q2 = Q3 = RJK0305DPB
Q1 = Si7129DN
15VIN
18VIN
24VIN
IBAT (A)
0
EFFICIENCY (%)
100
91
99
97
95
93
98
96
94
92
90 537
dc1614a F02b
948261
12.6VBAT
EXT. GATE DRIVERS DISABLED (R9 = R12 = 2Ω)
Q2 = Q3 = Q8 = Q10 = RJK0305DPB
Q1 = Si7129DN
15VIN
18VIN
24VIN
LTC4012 Basic Efficiency LTC4012 Enhanced Efficiency with Drivers
QUICK START PROCEDURE
Figure 1. Proper Measurement Equipment Setup
LOAD
+
–
+
–
INPUT
SUPPLY
VBAT
+–
BATTERY
+
–
+
–
DC1223
OPTIONAL
OPTIONAL
BATTERY
CONNECTION
4
dc1614af
DEMO MANUAL DC1614A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION
MANUFACTURER/
PART NUMBER
REQUIRED CIRCUIT COMPONENTS:
1 3 C5, C6, C12 Capacitor, 0.1μF, 50V, 10% 0603 TDK C1608X7R1H104K
2 1 C7 Capacitor, 2.2μF, 16V, 20% 0805 TDK C2012X5R1C225M
3 8 C8, C9, C10, C11, C16, C17, C18, C19 Capacitor, 10μF, 25V, 20% 1206 Taiyo Yuden TMK316BJ106ML
4 1 C13 Capacitor, 0.1μF, 16V, 10% 0402 TDK C1005X7R1C104K
5 1 C15 Capacitor, 4.7nF, 50V, 10% 0402 TDK C1005X7R1H472K
6 1 C20 Capacitor, 10pF, 50V, ±0.5% 0402 TDK C1005C0G1H100D
7 1 D1 Diode Schottky, 30V, SOD-323 Central Semi. CMDSH-3TR
8 1 D2 Diode Schottky, 40V/3A ON Semiconductor MBRS340T3
9 1 L1 Inductor, 2.2μH Vishay IHLP-2525CZ-01 2R2uH
10 1 Q1 MOSFET P-Channel, 30V, PowerPAK1212-8 Vishay Si7129DN-T1-GE3 #PbF
11 4 Q2, Q3 MOSFET N-Channel, 30V/10A Renesas RJK0305DPB-00-J0
12 1 R1 Resistor, 0.010Ω, 1W, 1% 2512 IRC LR2512-01-R010-F
13 1 R3 Resistor, 5.1k, 1/16W, 1% 0603 Vishay CRCW06035K10FKEA
14 1 R8 Resistor, 6.04k, 1/16W, 1% 0402 Vishay CRCW04026K04FKEA
15 1 R10 Resistor, 0.012Ω, 1W, 1% 2512 IRC LR2512-01-R012-F
16 1 R13 Resistor, 27.4k, 1/16W, 1% 0402 Vishay CRCW040227K4FKEA
17 1 R14 Resistor, 184k, 1/16W, 0.25% 0402 NIC Comp NTR-04C1843DTRF
18 2 R15, R16 Resistor, 3.01k, 1/16W, 1% 0402 Vishay CRCW04023K01FKEA
19 1 R19 Resistor, 19.6k, 1/16W, 0.25% 0402 NIC Comp NTR-04C1962DTRF
20 1 U1 I.C. Battery Charger QFN (20) (UF) 4mm ×4mm Linear Technology LTC4012CUF
ADDITIONAL CIRCUIT COMPONENTS:
1 1 C1 Capacitor, 10μF, 35V, 20% CAP-CE-5X6.0 Sanyo 35CE10AX
2 1 C2 Capacitor, 0.1μF, 50V, % 0603 TDK C1608X7R1H104K
3 1 C14 Capacitor, 0402 Optional
4 2 C21, C25 Capacitor, 0.1μF, 16V, 10% 0402 TDK C1005X7R1C104K
5 1 C22 Capacitor, 1μF, 25V, 10% 1206 AVX 12063C105KAT
6 1 C23 Capacitor, 0.1μF, 50V, 10% 0603 TDK C1608X7R1H104K
7 1 C24 Capacitor, 10μF, 16V, 20% 3528 AVX TAJB106M016
8 0 D3 Diode Schottky Rectifier, 40V/5A Powermite 3
9 1 D4 Diode Zener, 18V, SOD-323 Diodes Inc., MMSZ5248BS
10 2 D5, D8 Diode (Green) Panasonic LN1351C-(TR) PBF
11 2 D6, D7 Diode (Yellow) Panasonic LN1451C-(TR) PBF
12 0 L2 Inductor, IHLP5050 Optional
13 0 L3 Inductor, CEP125 Optional
14 2 Q4, Q16 MOSFET N-Channel, SOT23 Zetex 2N7002
15 0 Q5, Q6 MOSFET P-Channel, 30V, PowerPAK1212-8 Vishay Si7129DN-T1-GE3 #PbF
16 2 Q7, Q9 XSTR., 12V NPN/PNP SOT23-6 Diode Inc ZXTC2063E6
17 2 Q8, Q10 MOSFET N-Channel, 30V/10A Renesas RJK0305DPB-00-J0
5
dc1614af
DEMO MANUAL DC1614A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION
MANUFACTURER/
PART NUMBER
18 1 Q11 MOSFET P-Channel, 30V, PowerPAK1212-8 Vishay Si7129DN-T1-GE3 #PbF
19 1 Q12 Transistor, SOT-323 On Semi., MMBT3906WT1G
20 3 Q13, Q14, Q15 MOSFET P-Channel, SOT23 Siliconix TP0610T
21 1 Q17 MOSFET N-Channel, 20V SC-75 Philips Semi. (NXP) PMR280UN
22 0 RT1 Thermistor, 0603 Optional
23 1 R2 Resistor, 10k, 1/16W, 1% 0603 NIC Comp NCR06F1002TRF
24 1 R4 Resistor, 165k, 1/16W, 1% 0402 Vishay CRCW0402165KFKEA
25 3 R5, R6, R30 Resistor, 100k, 1/16W, 1% 0402 AAC, CR05-104JM
26 1 R7 Resistor, 10Ω, 1/16W, 5% 0603 Vishay CRCW060310R0JNEA
27 3 R9, R12, R43 Resistor, 0Ω, 1/16W, 1A 0603 Vishay CRCW06030000ZEA
28 1 R17 Resistor, 74.1k, 1/16W, 0.25% 0402 NIC Comp NTR-04C7412DTRF
29 1 R18 Resistor, 30.9k, 1/16W, 0.25% 0402 NIC Comp NTR-04C3092DTRF
30 1 R20 Resistor, 14.3k, 1/16W, 0.25% 0402 NIC Comp NTR-04C1432DTRF
31 1 R21 Resistor, 93.1k, 1/16W, 0.25% 0402 NIC Comp NTR-04C9312DTRF
32 1 R22 Resistor, 37k, 1/16W, 0.25% 0402 NIC Comp NTR-04C3702DTRF
33 1 R23 Resistor, 23.2k, 1/16W, 0.25% 0402 NIC Comp NTR-04C2322DTRF
34 1 R24 Resistor, 16.9k, 1/16W, 0.25% 0402 NIC Comp NTR-04C1692DTRF
35 1 R25 Resistor, 232Ω, 1/16W, 1% 0402 Vishay CRCW0402232RFKED
36 1 R26 Resistor, 499k, 1/16W, 1% 0603 Vishay CRCW0603499KFKEA
37 1 R27 Resistor, 10Ω, 1/16W, 5% 0603 AAC, CR05-104JM
38 1 R31 Resistor, 28k, 1/16W, 1% 0603 Vishay CRCW060328K0FKEA
39 4 R32, R33, R34, R35 Resistor, 300Ω, 1/16W, 5% 0603 AAC CR16-301JM
40 0 R36, R37, R38, R40, R41, R42 Resistor, 0603 Optional
41 1 U2 I.C., Voltage Regulator DFN (06) (DC) 2mm ×2mm Linear Technology LT3008EDC-5
HARDWARE-FOR DEMO BOARD ONLY:
1 1 JP1 Headers, Double-Row, 2mm ×8mm, 2mm Centers Samtec TMM-108-02-L-D
2 1 JP2 Headers, Double-Row, 2mm ×3mm, 2mm Centers Samtec TMM-103-02-L-D
3 3 JP3, JP4, JP5 Headers, Single-Row, 3 Pins, 2mm Centers Samtec TMM-103-02-L-S
4 5 XJP1, XJP2, XJP3 ,XJP4, XJP5 Shunt, 2mm Centers Samtec 2SN-BK-G
5 6 J1, J2, J3, J4, J5, J6 Connector, Banana Jack Keystone 575-4
6 1 J7 Connector, AMP-787441-1 Amp Inc. 787441-1
7 1 P1 Connector DB, R-Angle Female 15-pin Amp 1-1734530-3
8 13 TP1, TP2, TP3, TP4, TP5, TP6, TP7,
TP8, TP9, TP10, TP11, TP12, TP13
Turret, Test Point MM/2308 Mill Max 2308
9 0 THERM1, THERM2, TP14 Turret, Test Point MM/2308 Optional Mill Max 2308
10 4 Stand-Off, Nylon 0.5" tall Keystone, 8833 (Snap On)
6
dc1614af
DEMO MANUAL DC1614A
SCHEMATIC DIAGRAM
CHG
ICL
SHDN
BATTERY
NOTES: UNLESS OTHERWISE SPECIFIED,
Option Connector for
Smart Batteries
ACP
PROG
SGND
Li-Ion Li-Ph
4.2V 8.4V 12.6V 16.8V 3.6V 7.2V 10.8V 14.4V
[2]
[2]
[2]
[2]
[1]
VCC
GND
OPTIONAL CIRCUIT
GND
SDA
SCL
[1]
1.
2.
3.
4.
5.
[3]
[3]
[4]
[4]
[5]
[5] [5] [5] [5] [5] [5] [5] [5]
[5]
[5]
SUN ELEC
35CE10AX
0603 0603 0603 2512
0603 0603
0805
0603
0603
0603
0603
0603
1206 1206 1206 1206
2512 1206 1206 1206 1206
CHANGE R9 AND R12 T0 100 OHMS WHEN USING GATE DRIVER CIRCUIT.
ADJUST R1, R10, R13 AND L1 APPROPRIATELY FOR INCREASED OUTPUT CURRENT.
R13 IS ADJUSTED WITH R10 TO OBTAIN 8A OUTPUT CURRENT.
OPTION: FOR SLA OPTIONAL CIRCUIT, DO NOT INSTALL R14,
R17 THRU R25, JP1.
ALL CAPACITORS AND RESISTORS ARE 0402.
-2 JOSH Y
PRODUCTION
05/27/10
CLP
SW_0
INFET
BVCC
THM
SGND
TGATE
SW
BGATE
TG
BG
VBAT
SGND
BVCC
TGATE
TG
SW
CLP
BG
INFET
BGATE
ACP
CHG
ICL
VOUT
SDA
SCL
VG
VG
SW_0
VFB
FBDIV
BVCC
TGATE
TG
SW
BGATE
BG
INFET
CLP
SCL
SDA
THM
ACP
CHG
ICL
VG
SW_0
VFB
FBDIV
BAT
VIN
INTV
CLN
VCC
VOUT
BAT
VCC
VIN
VIN
REVISION HISTORY
DESCRIPTION DATE
APPROVED
ECO REV
REVISION HISTORY
DESCRIPTION DATE
APPROVED
ECO REV
REVISION HISTORY
DESCRIPTION DATE
APPROVED
ECO REV
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R5
100K
R5
100K
EXPOSED
PAD
U1
LTC4012CUF
EXPOSED
PAD
U1
LTC4012CUF
CLN
1
CLP
2
INFET
3
ICL
8
DCIN
4
SHDN
6
ACP
5
CHRG
7
VFB
9
FBDIV
10
BAT
11
ITH
12
PROG
13
CSN
14
CSP
15
BGATE
16
INTVDD
17
SW
18
TGATE
19
BOOST
20
GND
21
R43
0 Ohm
R43
0 Ohm
+
C1
10uF
35V
+
C1
10uF
35V
R18
30.9K
0.25%
R18
30.9K
0.25%
D1
CMDSH-3TR
D1
CMDSH-3TR
D4
18V
D4
18V
R2
10K
R2
10K
R20
14.3K
0.25%
R20
14.3K
0.25%
R7
10 0603
R7
10 0603
JP1JP1
1
3
2
4
5 6
7 8
910
11 12
13 14
15 16
C16
10uF
25V
C16
10uF
25V
R9
0 Ohm
R9
0 Ohm
C14
OPT
C14
OPT
R6
100K
R6
100K
C11
10uF
25V
C11
10uF
25V
Q1
Si7129DN-T1-GE3
Q1
Si7129DN-T1-GE3
C19
10uF
25V
C19
10uF
25V
TP13TP13
R15
3.01K
R15
3.01K
R24
16.9K
0.25%
R24
16.9K
0.25%
R8
6.04K
R8
6.04K
R4
165K
R4
165K
R12
0 Ohm
R12
0 Ohm
J3
GND
J3
GND
TP4TP4
TP6TP6
J6
GND
J6
GND
C2
0.1uF
50V
C2
0.1uF
50V
TP8TP8
R25
232
1%
R25
232
1%
TP2TP2
R21
93.1K
0.25%
R21
93.1K
0.25%
TP11TP11
TP5TP5
R17
74.1K
0.25%
R17
74.1K
0.25%
C18
10uF
25V
C18
10uF
25V
TP3TP3
C6
0.1uF
C6
0.1uF
C5
0.1uF
50V
C5
0.1uF
50V
JP2
OFF
THM
ON
SHUTDOWN
JP2
OFF
THM
ON
SHUTDOWN
1
3
2
4
65
J5 BAT
12.6V @ 8A
J5 BAT
12.6V @ 8A
R14
184K
0.25%
R14
184K
0.25%
TP12TP12
L1
2.2uH
L1
2.2uH
D2
MBRS340T3
D2
MBRS340T3
J2
VOUT
J2
VOUT
R26
499K
R26
499K
C12
0.1uF
C12
0.1uF
C17
10uF
25V
C17
10uF
25V
Q2
RJK0305DPB-00-J0
Q2
RJK0305DPB-00-J0
4
31
5
2
R22
37.0K
0.25%
R22
37.0K
0.25%
J1
VIN
15V - 20V @10A
J1
VIN
15V - 20V @10A
R30
100K
R30
100K
R3
5.1K
R3
5.1K
J7
AMP-787441-1
J7
AMP-787441-1
(+)
1
(+)
2
CLOCK
3
CLOCK
4
DATA
5
DATA
6
(T)
7
(T)
8
(-)
9
(-)
10
R1
1%
0.010
1W
R1
1%
0.010
1W
1 3
2 4
R13
27.4K
R13
27.4K
C10
10uF
25V
C10
10uF
25V
TP1TP1
C20
10pF
C20
10pF
C15
4.7nF
C15
4.7nF
R16
3.01K
R16
3.01K
C8
10uF
25V
C8
10uF
25V
C9
10uF
25V
C9
10uF
25V
Q4
2N7002
Q4
2N7002
1
2 3
R19
19.6K
0.25%
R19
19.6K
0.25%
Q11
Si7129DN-T1-GE3
Q11
Si7129DN-T1-GE3
J4
GND
J4
GND
R10
1%
0.012
1W
R10
1%
0.012
1W
1 3
2 4
Q3
RJK0305DPB-00-J0
Q3
RJK0305DPB-00-J0
4
31
5
2
C7
2.2uF
C7
2.2uF
C13
0.1uF
C13
0.1uF
TP7TP7
R23
23.2K
0.25%
R23
23.2K
0.25%
7
dc1614af
DEMO MANUAL DC1614A
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SCHEMATIC DIAGRAM
VCTRL
OPTIONAL CIRCUIT
(SEALED LEAD ACID)
INDUCTOR
PACKAGE OPTIONS
[4]
1. REMOVE ALL ABOVE COMPONENTS WHEN
NOT USING SLA CIRCUIT.
[4]
[4]
INDICATOR CIRCUIT
OPTIONAL
C/10
TO OPTIONAL DC1223A
GND
ICL ACP
LOGIC SUPPLY 5V OPTIONAL CIRCUIT(INFET) & VOUT
EXT VCC
CHG
INCREASED GATE DRIVE CIRCUIT
1. REMOVE ALL ABOVE COMPONENTS WHEN
NOT USING GATE DRIVER CIRCUIT.
2. Q7 AND Q9 CAN BE PBSS4140DON OR CMLF3474
DEPENDING ON REQUIRED DRIVE STRENGTH.
TG
VCTRL
CHG
SW
BG
SW
VG
INFET
CLP
SW_0
BVCC
TGATE
BGATE
SW_0
SW
CHG
ACP
ICL
VG
VOUT
ACP
SCL
SDA
THM
ICLCHG
EXT_VCC
BVCC
TGATE
TG
SW
BGATE
BG
CLP
INFET
SCL
SDA
THM
FBDIV
VFB
FBDIV
VFB
CHG
ACP
ICL
SW_0
VG
BVCC
TGATE
TG
SW
BGATE
BG
CLP
INFET
SDA
SCL
THM
VOUT
VOUT
VOUT
BAT
VIN
VCC
VCC
VCC
6,=(
'$7(
,&12 5(9
6+((7 2)
7,7/(
APPROVALS
3&%'(6
$33(1*
TECHNOLOGY
)D[
0LOSLWDV&$
3KRQH
0F&DUWK\%OYG
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
&86720(5127,&(
/,1($57(&+12/2*<+$60$'($%(67())25772'(6,*1$
&,5&8,77+$70((76&86720(56833/,('63(&,),&$7,216
+2:(9(5,75(0$,167+(&86720(565(63216,%,/,7<72
9(5,)<3523(5$1'5(/,$%/(23(5$7,21,17+($&78$/
$33/,&$7,21&20321(1768%67,787,21$1'35,17('
&,5&8,7%2$5'/$<2870$<6,*1,),&$17/<$))(&7&,5&8,7
3(5)250$1&(255(/,$%,/,7<&217$&7/,1($5
7(&+12/2*<$33/,&$7,216(1*,1((5,1*)25$66,67$1&(
7+,6&,5&8,7,635235,(7$5<72/,1($57(&+12/2*<$1'
6&+(0$7,&
6833/,(')2586(:,7+/,1($57(&+12/2*<3$576
6&$/( 121(
www.linear.com
3
'(02&,5&8,7$
:HGQHVGD\-XO\
THREE CELL 12.6V@8A SWITCHING BATTERY CHARGER
1$
/7&&8)
5%
JOSH Y
C:\PADS PROJECTS\1614A\SCH\1614A_00_REV3.DSN
6,=(
'$7(
,&12 5(9
6+((7 2)
7,7/(
APPROVALS
3&%'(6
$33(1*
TECHNOLOGY
)D[
0LOSLWDV&$
3KRQH
0F&DUWK\%OYG
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
&86720(5127,&(
/,1($57(&+12/2*<+$60$'($%(67())25772'(6,*1$
&,5&8,77+$70((76&86720(56833/,('63(&,),&$7,216
+2:(9(5,75(0$,167+(&86720(565(63216,%,/,7<72
9(5,)<3523(5$1'5(/,$%/(23(5$7,21,17+($&78$/
$33/,&$7,21&20321(1768%67,787,21$1'35,17('
&,5&8,7%2$5'/$<2870$<6,*1,),&$17/<$))(&7&,5&8,7
3(5)250$1&(255(/,$%,/,7<&217$&7/,1($5
7(&+12/2*<$33/,&$7,216(1*,1((5,1*)25$66,67$1&(
7+,6&,5&8,7,635235,(7$5<72/,1($57(&+12/2*<$1'
6&+(0$7,&
6833/,(')2586(:,7+/,1($57(&+12/2*<3$576
6&$/( 121(
www.linear.com
3
'(02&,5&8,7$
:HGQHVGD\-XO\
THREE CELL 12.6V@8A SWITCHING BATTERY CHARGER
1$
/7&&8)
5%
JOSH Y
C:\PADS PROJECTS\1614A\SCH\1614A_00_REV3.DSN
6,=(
'$7(
,&12 5(9
6+((7 2)
7,7/(
APPROVALS
3&%'(6
$33(1*
TECHNOLOGY
)D[
0LOSLWDV&$
3KRQH
0F&DUWK\%OYG
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
&86720(5127,&(
/,1($57(&+12/2*<+$60$'($%(67())25772'(6,*1$
&,5&8,77+$70((76&86720(56833/,('63(&,),&$7,216
+2:(9(5,75(0$,167+(&86720(565(63216,%,/,7<72
9(5,)<3523(5$1'5(/,$%/(23(5$7,21,17+($&78$/
$33/,&$7,21&20321(1768%67,787,21$1'35,17('
&,5&8,7%2$5'/$<2870$<6,*1,),&$17/<$))(&7&,5&8,7
3(5)250$1&(255(/,$%,/,7<&217$&7/,1($5
7(&+12/2*<$33/,&$7,216(1*,1((5,1*)25$66,67$1&(
7+,6&,5&8,7,635235,(7$5<72/,1($57(&+12/2*<$1'
6&+(0$7,&
6833/,(')2586(:,7+/,1($57(&+12/2*<3$576
6&$/( 121(
www.linear.com
3
'(02&,5&8,7$
:HGQHVGD\-XO\
THREE CELL 12.6V@8A SWITCHING BATTERY CHARGER
1$
/7&&8)
5%
JOSH Y
C:\PADS PROJECTS\1614A\SCH\1614A_00_REV3.DSN
C21
0.1uF
(OPT)
C21
0.1uF
(OPT)
Q13
TP0610T
Q13
TP0610T
1
3 2
Q5
Si7129DN-T1-GE3
#PbF
(OPT)
Q5
Si7129DN-T1-GE3
#PbF
(OPT)
TP9TP9
Q17
PMR280UN
(OPT)
Q17
PMR280UN
(OPT)
Q15
TP0610T
Q15
TP0610T
1
3 2
L3
(OPT)
CEP125
L3
(OPT)
CEP125
R33
300
R33
300
Q12
MMBT3906WT1
Q12
MMBT3906WT1
1
3 2
JP4
INTERNAL VCC
ON
OFF
JP4
INTERNAL VCC
ON
OFF
1
3
2
R34
300
R34
300
Q10
RJK0305DPB-00-J0
(OPT)
Q10
RJK0305DPB-00-J0
(OPT)
4
31
5
2
Q6
Si7129DN-T1-GE3
#PbF
(OPT)
Q6
Si7129DN-T1-GE3
#PbF
(OPT)
R35
300
R35
300
C23
0.1uF
C23
0.1uF
R42
26.1K
1%
(OPT)
R42
26.1K
1%
(OPT)
C22
1uF
25V
C22
1uF
25V
P1
AMP
1-1734530-3
P1
AMP
1-1734530-3
8
15
7
14
6
13
5
12
4
11
3
10
2
9
1
Q14
TP0610T
Q14
TP0610T
1
3 2
R40
(OPT)
R40
(OPT)
THERM1
(OPT)
THERM1
(OPT)
D3
SBM540-13-F
(OPT)
D3
SBM540-13-F
(OPT)
1
2
3
Q9
ZXTC2063E6
(OPT)
Q9
ZXTC2063E6
(OPT)
2
1
6
5
4
3
Q7
ZXTC2063E6
(OPT)
Q7
ZXTC2063E6
(OPT)
2
1
6
5
4
3
U2
LT3008EDC-5
U2
LT3008EDC-5
SENSE
1
OUT
3
OUT
2
GND
6
SHDN
5
IN
4
GND
7
C24
10uF
16V
C24
10uF
16V
R37
243K
1%
(OPT)
R37
243K
1%
(OPT)
D7
(YELLOW)
D7
(YELLOW)
TP10TP10
D8
(GREEN)
D8
(GREEN)
JP5
LED PWR
ON
OFF
JP5
LED PWR
ON
OFF
1
3
2
Q8
RJK0305DPB-00-J0
(OPT)
Q8
RJK0305DPB-00-J0
(OPT)
4
31
5
2
R32
300
R32
300
TP14
(OPT)
TP14
(OPT)
R36
54.9K
1%
(OPT)
R36
54.9K
1%
(OPT) THERM2
(OPT)
THERM2
(OPT)
JP3
VCC SELECT
EXT
INT
JP3
VCC SELECT
EXT
INT
1
3
2
RT1
100K
(OPT)
RT1
100K
(OPT)
D6
(YELLOW)
D6
(YELLOW)
R41
0 Ohm (OPT)
R41
0 Ohm (OPT)
L2
(OPT)
IHLP5050CE-01
L2
(OPT)
IHLP5050CE-01
R31
28.0K
R31
28.0K
Q16
2N7002
Q16
2N7002
1
2 3
R27
10
R27
10
D5
(GREEN)
D5
(GREEN)
C25
0.1uF
(OPT)
C25
0.1uF
(OPT)
R38
13.0K
1%
(OPT)
R38
13.0K
1%
(OPT)
8
dc1614af
DEMO MANUAL DC1614A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ●FAX: (408) 434-0507 ●www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2010
LT 1010 • PRINTED IN USA
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:
This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT
OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC applica-
tion engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
This manual suits for next models
2
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