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Battery Chargers. LTM8062A Datasheet

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Battery Chargers. LTM8062A Datasheet






LTM8062A Chargers. Datasheet pdf. Equivalent




LTM8062A Chargers. Datasheet pdf. Equivalent





Part

LTM8062A

Description

uModule Power Tracking Battery Chargers

Manufacture

Linear Technology

Datasheet
Download LTM8062A Datasheet


Linear Technology LTM8062A

LTM8062A; Features n Complete Battery Charger Sys tem n Input Supply Voltage Regulation Loop for Peak Power Tracking in MPPT (M aximum Peak Power Tracking) Solar Appli cations n Resistor Programmable Float Voltage Up to 14.4V on the LTM8062 and 18.8V on the LTM8062A n Wide Input Vol tage Range: 4.95V to 32V (40V Abs Max) n 2A Charge Current n Accommodates Li -Ion/Polymer, LiFe.


Linear Technology LTM8062A

PO4, SLA n Integrated Input Reverse Vol tage Protection n User Selectable Term ination: C/10 or Termination Timer n 0 .75% Float Voltage Reference Accuracy n 9mm × 15mm × 4.32mm LGA Package Appl ications n Industrial Handheld Instrum ents n 12V to 24V Automotive and Heavy Equipment n Desktop Cradle Chargers n Solar Power Battery Charging LTM8062 /LTM8062A 32VIN, 2A .


Linear Technology LTM8062A

µModule Power Tracking Battery Chargers Description The LTM®8062/LTM8062A are complete 32VIN, 2A µModule® power tr acking battery chargers. The LTM8062/ L TM8062A provide a constant-current/cons tant-voltage charge characteristic, a 2 A maximum charge current, and employ a 3.3V float voltage feedback reference, so any desired battery float voltage up to 14.4V for the LTM8.



Part

LTM8062A

Description

uModule Power Tracking Battery Chargers

Manufacture

Linear Technology

Datasheet
Download LTM8062A Datasheet




 LTM8062A
Features
n Complete Battery Charger System
n Input Supply Voltage Regulation Loop for Peak
Power Tracking in MPPT (Maximum Peak Power
Tracking) Solar Applications
n Resistor Programmable Float Voltage Up to 14.4V
on the LTM8062 and 18.8V on the LTM8062A
n Wide Input Voltage Range: 4.95V to 32V
(40V Abs Max)
n 2A Charge Current
n Accommodates Li-Ion/Polymer, LiFePO4, SLA
n Integrated Input Reverse Voltage Protection
n User Selectable Termination: C/10 or Termination
Timer
n 0.75% Float Voltage Reference Accuracy
n 9mm × 15mm × 4.32mm LGA Package
Applications
n Industrial Handheld Instruments
n 12V to 24V Automotive and Heavy Equipment
n Desktop Cradle Chargers
n Solar Power Battery Charging
LTM8062/LTM8062A
32VIN, 2A µModule Power
Tracking Battery Chargers
Description
The LTM®8062/LTM8062A are complete 32VIN, 2A
µModule® power tracking battery chargers. The LTM8062/
LTM8062A provide a constant-current/constant-voltage
charge characteristic, a 2A maximum charge current, and
employ a 3.3V float voltage feedback reference, so any
desired battery float voltage up to 14.4V for the LTM8062
and up to 18.8V for the LTM8062A can be programmed
with a resistor divider.
The LTM8062/LTM8062A employ an input voltage regula-
tion loop, which reduces charge current if the input volt-
age falls below a programmed level, set with a resistor
divider. When the LTM8062/LTM8062A are powered by a
solar panel, this input regulation loop is used to maintain
the panel at peak output power. The LTM8062/LTM8062A
also feature preconditioning trickle charge, bad battery
detection, a choice of termination schemes and automatic
restart.
The LTM8062/LTM8062A are packaged in a thermally en-
hanced, compact (9mm × 15mm ×4.32mm) over-molded
land grid array (LGA) package suitable for automated
assembly by standard surface mount equipment. The
LTM8062/LTM8062A are RoHS compliant.
L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
Typical Application
2A LiFePO4 µModule Battery Charger
VIN
6V TO 32V
4.7µF
VINA LTM8062 BAT
VIN BIAS
VINREG
CHRG
RUN FAULT
TMR ADJ
NTC
GND
8062 TA01a
274k
2.87M
1-CELL
LiFePO4
(3.6V)
Charge Current vs Battery Voltage
2500
2000
NORMAL CHARGING
1500
1000
500
0
0
PRECONDITION
TERMINATION
123
BATTERY VOLTAGE (V)
4
8062 TA01b
For more information www.linear.com/LTM8062
8062fd
1





 LTM8062A
LTM8062/LTM8062A
Absolute Maximum Ratings
(Note 1)
VINA, VIN....................................................................40V
VINREG, RUN, CHRG, FAULT.......................VIN + 0.5, 40V
TMR, NTC.................................................................2.5V
BAT (LTM8062)..........................................................15V
BAT (LTM8062A).......................................................20V
BIAS........................................................................... 10V
ADJ..............................................................................5V
Maximum Internal Operating Temperature
(Note 2).................................................................. 125°C
Maximum Body Solder Temperature...................... 245°C
Pin Configuration
TOP VIEW
BIAS ADJ FAULT CHRG GND
7
BAT BANK 2
NTC TMR RUN VINREG
6
5
VINA BANK 3
4
BANK 1
3
GND
2
BANK 4
VIN
1
ABCDE FGHJ K
LGA PACKAGE
77-LEAD (15mm × 9mm × 4.32mm)
TJMAX = 125°C, θJA = 17.0°C/W, θJCbottom = 6.1°C/W,
θJCtop = 16.2°C/W, θJB = 11.2°C/W, WEIGHT = 1.7g
θ VALUES DETERMINED PER JEDEC 51-9, 51-12
L
Order Information
LEAD FREE FINISH
TRAY
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTM8062EV#PBF
LTM8062EV#PBF
LTM8062V
77-Lead (15mm × 9mm × 4.32mm) LGA
–40°C to 125°C
LTM8062IV#PBF
LTM8062IV#PBF
LTM8062V
77-Lead (15mm × 9mm × 4.32mm) LGA
–40°C to 125°C
LTM8062AEV#PBF
LTM8062AEV#PBF
LTM8062AV
77-Lead (15mm × 9mm × 4.32mm) LGA
–40°C to 125°C
LTM8062AIV#PBF
LTM8062AIV#PBF
LTM8062AV
77-Lead (15mm × 9mm × 4.32mm) LGA
–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.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
This product is only offered in trays. For more information go to: http://www.linear.com/packaging/
8062fd
2 For more information www.linear.com/LTM8062





 LTM8062A
LTM8062/LTM8062A
E lectrical Characteristics The l denotes the specifications which apply over the full internal
operating temperature range, otherwise specifications are at TA = 25°C. RUN = 2V.
PARAMETER
CONDITIONS
MIN TYP MAX
VIN Maximum Operating Voltage
VIN Start Voltage
VIN OVLO Threshold
VIN OVLO Hysteresis
VIN UVLO Threshold
VIN UVLO Hysteresis
VINA to VIN Diode Forward Voltage Drop
Maximum BAT Float Voltage
VBAT = 4.2V (Note 3)
VIN Rising
VIN Rising
VINA Current = 2A
LTM8062
LTM8062A
32
7.5
32 35 40
1
4.6 4.95
0.3
0.55
14.7
19.3
Input Supply Current
Maximum BAT Charging Current
Standby Mode
RUN = 0, VINREG = 15V
(Note 4)
85
18
1.8 2.1
ADJ Float Reference Voltage
3.275
l 3.25
3.3 3.325
3.34
ADJ Recharge Threshold Voltage
Threshold Relative to ADJ Float Reference
82.5
ADJ Precondition Threshold Voltage
ADJ Rising
2.3
ADJ Precondition Threshold Hysteresis Voltage Relative to ADJ Precondition Threshold
95
ADJ Input Bias Current
Charging Terminated
CV Operation
65
110
VINREG Reference Voltage
VINREG Bias Current
NTC Range Limit (High) Voltage
NTC Range Limit (Low) Voltage
NTC Disable Impedance
ADJ = 3V, IBAT = 1A
VINREG = 2.7V
VNTC Rising
VNTC Falling
l 2.61
1.25
0.27
250
2.7 2.83
27
1.36 1.45
0.29 0.315
500
NTC Bias Current
NTC Threshold Hysteresis
VNTC = 0.8V
For Both High and Low Range Limits
45 53
20
RUN Threshold Voltage
RUN Hysteresis Voltage
VRUN Rising
1.15 1.20 1.25
120
RUN Input Bias Current
–10
CHRG, FAULT Output Low Voltage
10mA Load
0.4
TMR Charge/Discharge Current
25
TMR Disable Threshold Voltage
0.25
Operating Frequency
0.85 1 1.15
UNITS
V
V
V
V
V
V
V
V
V
µA
µA
A
V
V
mV
V
mV
nA
nA
V
µA
V
V
kΩ
µA
%
V
mV
nA
V
µA
V
MHz
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTM8062E/LTM8062AE are guaranteed to meet performance
specifications from 0°C to 125°C internal. Specifications over the full
–40°C to 125°C internal operating temperature range are assured by
design, characterization and correlation with statistical process controls.
The LTM8062I/LTM8062AI are guaranteed to meet specifications over
the full –40°C to 125°C internal operating temperature range. Note that
the maximum internal temperature is determined by specific operating
conditions in conjunction with board layout, the rated package thermal
resistance and other environmental factors.
Note 3: This parameter is valid for programmed output battery float
voltages ≤ 4.2V. For other float voltages, VIN Start is 3.3V above the
programmed output battery float voltage. This parameter is guaranteed by
design, characterization, and correlation with statistical process controls.
Note 4: The maximum BAT charging current is reduced by thermal
foldback. See the Typical Performance Characteristics for details.
For more information www.linear.com/LTM8062
8062fd
3



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