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LTC4000IUFD-1#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P40
LTC4000-1
1
40001fa
For more information www.linear.com/LTC4001-1
Solar Panel Input Regulation,
Achieves Max Power Point
to Greater than 98%
Typical applicaTion
FeaTures DescripTion
High Voltage High Current
Controller for Battery Charging with
Maximum Power Point Control
The LTC
®
4000-1 is a high voltage, high performance
controller that converts many externally compensated
DC/DC power supplies into full-featured battery chargers
with maximum power point control. In contrast to the
LTC4000, the LTC4000-1 has an input voltage regulation
loop instead of the input current regulation loop.
Features of the LTC4000-1’s battery charger include:
accurate (±0.25%) programmable float voltage, select-
able timer or current termination, temperature qualified
charging using an NTC thermistor, automatic recharge,
C/10 trickle charge for deeply discharged cells, bad battery
detection and status indicator outputs. The battery charger
also includes precision current sensing that allows lower
sense voltages for high current applications.
The LTC4000-1 supports intelligent PowerPath control. An
external PFET provides low loss reverse current protec-
tion. Another external PFET provides low loss charging
or discharging of the battery. This second PFET also
facilitates an instant-on feature that provides immediate
downstream system power even when connected to a
heavily discharged or shorted battery.
The LTC4000-1 is available in a low profile 28-lead
4mm × 5mm QFN and SSOP packages.
10.8V at 10A Charger for Three LiFePO
4
Cells with a Solar Panel Input
applicaTions
n
Maximum Power Control: Solar Panel Input
Compatible
n
Complete High Performance Battery Charger When
Paired with a DC/DC Converter
n
Wide Input and Output Voltage Range: 3V to 60V
n
Input Ideal Diode for Low Loss Reverse Blocking
and Load Sharing
n
Output Ideal Diode for Low Loss PowerPath™ and
Load Sharing with the Battery
n
Programmable Charge Current: ±1% Accuracy
n
±0.25% Accurate Programmable Float Voltage
n
Programmable C/X or Timer Based Charge
Termination
n
NTC Input for Temperature Qualified Charging
n
28-Lead 4mm × 5mm QFN or SSOP Packages
n
Solar Powered Battery Charger Systems
n
Battery Charger with High Impedance Input Source,
e.g., Fuel Cell or Wind Turbine
n
Battery Equipped Industrial or Portable Military
Equipments
L, LT, LTC , LT M, 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.
1.13M
14.7k
127k
10k
10k
3-CELL LiFePO
4
BATTERY PACK
V
BAT
10.8V FLOAT
10A MAX CHARGE
CURRENT
1.15M
47nF
5mΩ
V
OUT
12V, 15A
SOLAR PANEL INPUT
<60V OPEN
CIRCUIT VOLTAGE
17.6V PEAK
POWER VOLTAGE
Si7135DP
133k
CSN
CSP
BGATE
IGATE
BAT
OFB
FBG
BFB
NTC
CX
LTC4000-1
ITH CC IID
5mΩ
LT3845A
100µF
OUT
V
C
IN
CLN
IN
IFB
22.1k
TMRIIMON GND BIASCL
24.9k
1µF
3V
332k
20k
1µF
10nF
40001 TA01a
Si7135DP
0.1µF
CHARGER OUTPUT CURRENT: I
RCS
(A)
1
10
INPUT REGULATION VOLTAGE: V
INREG
(V)
12
16
14
18
20
5 6 7 8 9
40001 TA01b
102 3 4
T
A
= 25°C
98% TO 95% PEAK POWER
100% TO 98% PEAK POWER
LTC4000-1
2
40001fa
For more information www.linear.com/LTC4001-1
absoluTe MaxiMuM raTings
IN, CLN, IID, CSP, CSN, BAT ....................... –0.3V to 62V
IN-CLN, CSP-CSN ............................................–1V to 1V
OFB, BFB, FBG ........................................... –0.3V to 62V
FBG ............................................................–1mA to 2mA
IGATE ...........Max (V
IID
, V
CSP
) – 10V to Max (V
IID
, V
CSP
)
BGATE ....... Max (V
BAT
, V
CSN
) – 10V to Max (V
BAT
, V
CSN
)
ENC, CX, NTC, VM ...................................–0.3V to V
BIAS
IFB, CL, TMR, IIMON, CC .........................–0.3V to V
BIAS
BIAS .............................................–0.3V to Min (6V, V
IN
)
IBMON ..................................–0.3V to Min (V
BIAS
, V
CSP
)
ITH ............................................................... –0.3V to 6V
CHRG, FLT, RST .......................................... –0.3V to 62V
CHRG, FLT, RST ..........................................–1mA to 2mA
Operating Junction Temperature Range
(Note 2) ................................................................. 125°C
Lead Temperature (Soldering, 10 sec)
SSOP Package .................................................. 300°C
Storage Temperature Range ..................–65°C to 150°C
(Note 1)
9 10
TOP VIEW
UFD PACKAGE
28-LEAD (4mm × 5mm) PLASTIC QFN
11 12 13
28
29
GND
27 26 25 24
14
23
6
5
4
3
2
1
VM
RST
IIMON
IFB
ENC
IBMON
CX
CL
IGATE
OFB
CSP
CSN
BGATE
BAT
BFB
FBG
GND
IN
CLN
CC
ITH
IID
TMR
GND
F LT
CHRG
BIAS
NTC
7
17
18
19
20
21
22
16
8
15
T
JMAX
= 125°C, θ
JA
= 43°C/W, θ
JC
= 4°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
GN PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ENC
IBMON
CX
CL
TMR
GND
F LT
CHRG
BIAS
NTC
FBG
BFB
BAT
BGATE
IFB
IIMON
RST
VM
GND
IN
CLN
CC
ITH
IID
IGATE
OFB
CSP
CSN
T
JMAX
= 125°C, θ
JA
= 80°C/W, θ
JC
= 25°C/W
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4000EUFD-1#PBF LTC4000EUFD-1#TRPBF 40001
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LTC4000IUFD-1#PBF LTC4000IUFD-1#TRPBF 40001
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LTC4000EGN-1#PBF LTC4000EGN-1#TRPBF LTC4000GN-1 28-Lead Plastic SSOP –40°C to 125°C
LTC4000IGN-1#PBF LTC4000IGN-1#TRPBF LTC4000GN-1 28-Lead Plastic SSOP –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping
container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
LTC4000-1
3
40001fa
For more information www.linear.com/LTC4001-1
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= V
CLN
= 3V to 60V unless otherwise noted (Notes 2, 3).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Input Supply Operating Range
l
3 60 V
I
IN
Input Quiescent Operating Current 0.4 mA
I
BAT
Battery Pin Operating Current V
IN
≥ 3V, V
CSN
= V
CSP
≥ V
BAT
l
50 100 µA
Battery Only Quiescent Current V
IN
= 0V, V
CSN
= V
CSP
≤ V
BAT
l
10 20 μA
Shutdown
ENC Input Voltage Low
l
0.4 V
ENC Input Voltage High
l
1.5 V
ENC Pull-Up Current V
ENC
= 0V –4 –2 –0.5 µA
ENC Open Circuit Voltage V
ENC
= Open
l
1.5 2.5 V
Voltage Regulation
V
IFB_REG
Input Feedback Voltage
l
0.985 1.000 1.010 V
IFB Input Current V
IFB
= 1.0V ± 0.1 µA
V
BFB_REG
Battery Feedback Voltage
l
1.133
1.120
1.136
1.136
1.139
1.147
V
V
BFB Input Current V
BFB
= 1.2V ± 0.1 µA
V
OFB_REG
Output Feedback Voltage
l
1.176 1.193 1.204 V
OFB Input Current V
OFB
= 1.2V ± 0.1 µA
R
FBG
Ground Return Feedback Resistance
l
100 400 Ω
V
RECHRG(RISE)
Rising Recharge Battery Threshold Voltage % of V
BFB_REG
l
96.9 97.6 98.3 %
V
RECHRG(HYS)
Recharge Battery Threshold Voltage Hysteresis % of V
BFB_REG
0.5 %
V
OUT(INST_ON)
Instant-On Battery Voltage Threshold % of V
BFB_REG
l
82 86 90 %
V
LOBAT
Falling Low Battery Threshold Voltage % of V
BFB_REG
l
65 68 71 %
V
LOBAT(HYS)
Low Battery Threshold Voltage Hysteresis % of V
BFB_REG
3 %
Current Monitoring and Regulation
Ratio of Monitored-Current Voltage to Sense
Voltage
V
IN,CLN
≤ 50mV, V
IIMON
/V
IN,CLN
V
CSP,CSN
≤ 50mV, V
IBMON
/V
CSP,CSN
l
18.5 20 21 V/V
V
OS
Sense Voltage Offset V
CSP,CSN
≤ 50mV, V
CSP
= 60V or
V
IN,CLN
≤ 50mV, V
IN
= 60V (Note 4)
–300
300
µV
CLN, CSP, CSN Common Mode Range (Note 4)
l
3 60 V
CLN Pin Current ±1 µA
CSP Pin Current V
IGATE
= Open, V
IID
= 0V 90 μA
CSN Pin Current V
BGATE
= Open, V
BAT
= 0V 45 μA
I
CL
Pull-Up Current for the Charge Current Limit
Programming Pin
l
–55 –50 –45 μA
I
CL_TRKL
Pull-Up Current for the Charge Current Limit
Programming Pin in Trickle Charge Mode
V
BFB
< V
LOBAT
l
–5.5 –5.0 –4.5 μA
Input Current Monitor Resistance to GND 40 90 140 kΩ
Charge Current Monitor Resistance to GND 40 90 140 kΩ
A5 Error Amp Offset for the Charge Current
Loop (See Figure 1)
V
CL
= 0.8V
l
–10 0 10 mV
Maximum Programmable Current Limit
Voltage Range
l
0.985 1.0 1.015 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P40

LTC4000IUFD-1#TRPBF

Mfr. #:
Buy LTC4000IUFD-1#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management High Voltage, High Current Controller for Battery Charging and Power Management
Lifecycle:
New from this manufacturer.
Delivery:
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