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LT3652HVEDD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LT3652HV
4
3652hvfb
For more information www.linear.com/LT3652HV
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
TIMER
Full Charge Cycle Timeout 3 hr
Precondition Timeout 22.5 min
Timer Accuracy
l
–10 10 %
f
O
Operating Frequency 1 MHz
DC Duty Cycle Range Continuous Operation
l
15 90 %
The l denotes the specifications which apply over the full operating junction
temperature range, otherwise specifications are at T
A
= 25°C (Note 2). V
IN
= 20V, Boost – SW = 4V, SHDN = 2V, V
FB
= 3.3V, C
TIMER
= 0.68µF.
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 LT3652HV is tested under pulsed load conditions such that
T
J
≅ T
A
. The LT3652HVE is guaranteed to meet performance specifications
from 0°C to 85°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization, and correlation with statistical process controls. The
LT3652HVI specifications are guaranteed over the full –40°C to 125°C
operating junction temperature range. Note that the maximum ambient
temperature consistent with these specifications is determined by specific
operating conditions in conjunction with board layout, the rated package
thermal impedance and other environmental factors.
Note 3: V
IN
minimum voltages below the start threshold are only
supported if (V
BOOST
-V
SW
) > 2V.
Note 4: This parameter is valid for programmed output battery float
voltages ≤ 4.2V. V
IN
operating range minimum is 0.75V above the
programmed output battery float voltage (V
BAT(FLT)
+ 0.75V). V
IN
Start
Voltage is 3.3V above the programmed output battery float voltage
(V
BAT(FLT)
+ 3.3V).
Note 5: Output battery float voltage (V
BAT(FLT)
) programming resistor
divider equivalent resistance = 250k compensates for input bias current.
Note 6: All V
FB
voltages measured through 250k series resistance.
Note 7: V
SENSE(DC)
is reduced by thermal foldback as junction temperature
approaches 125°C.
ELECTRICAL CHARACTERISTICS
LT3652HV
5
3652hvfb
For more information www.linear.com/LT3652HV
TYPICAL PERFORMANCE CHARACTERISTICS
Switch Forward Drop (V
IN
– V
SW
)
vs Temperature
CC/CV Charging; SENSE Pin Bias
Current vs V
SENSE
C/10 Threshold (V
SENSE
–V
BAT
)
vs Temperature
V
FB
Reference Voltage
vs Temperature
V
IN
Standby Mode Current
vs Temperature
Switch Drive (I
SW
/I
BOOST
)
vs Switch Current
T
J
= 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50
V
FB
(FLT)
3.296
3.298
3.300
3.302
0
50
75
3652 G01a
3.304
–25
25
100
125
TEMPERATURE (°C)
–50
65
I
VIN
CURRENT (µA)
70
75
80
100
90
0
50
75
3652 G02
95
85
–25
25
100
SWITCH CURRENT (A)
0
I
SW
/I
BOOST
18
24
30
36
1.6
12
6
0
21
27
33
15
9
3
0.4
0.8
1.2
0.2 1.8
0.6
1.0
1.4
2.0
3652 G03
TEMPERATURE (°C)
–50
320
V
SW(ON)
(mV)
340
360
380
480
420
0
50
75
3652 G04
440
460
400
–25
25
100
125
I
SW
= 2A
V
SENSE
(V)
0
–350
I
SENSE
(µA)
–250
–150
–50
100
1
2
2.5
50
–300
–200
–100
0
0.5 1.5
3652 G05
V
BAT
= V
BAT(PRE)
V
BAT
= V
BAT(FLT)
TEMPERATURE (°C)
–50
8
SENSE(C/10)
9
10
11
0
50
75
3652 G06
–25
25
100
125
TEMPERATURE (°C)
–50
V
IN_REG(TH)
(V)
2.680
2.685
2.690
2.715
2.710
2.705
2.700
2.695
0
50
75
3652 G01
2.720
–25
25
100
125
V
IN_REG
Threshold
vs Temperature: I
CHG
at 50%
LT3652HV
6
3652hvfb
For more information www.linear.com/LT3652HV
TYPICAL PERFORMANCE CHARACTERISTICS
Maximum Charge Current
(V
SENSE
–V
BAT
) vs Temperature
Thermal Foldback – Maximum
Charge Current (V
SENSE
–V
BAT
)
vs Temperature
CC/CV Charging; BAT Pin Bias
Current vs V
BAT
T
A
= 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50
99.0
V
SENSE(DC)
(mV)
99.2
99.6
99.8
100.0
101.0
100.4
0
50
75
3652 G07
99.4
100.6
100.8
100.2
–25
25
100
125
V
FB
= 3V
TEMPERATURE (°C)
0
V
SENSE(DC)
(mV)
40
80
20
60
100
120
45 65 85 105 12535 13525 55 75 95 115
3652 G08
V
BAT
(V)
0
–0.4
I
BAT
(mA)
0.0
0.4
0.8
2.2
1.6
1
2
2.5
2.0
1.2
–0.2
0.2
0.6
1.0
1.8
1.4
0.5 1.5
3
3652 G09
V
BAT(FLT)
V
IN_REG
(V)
2.65
V
SENSE(DC)
(mV)
0
20
80
60
40
2.67
2.69
2.7
3652 G10
100
2.66 2.68
2.722.71
2.73 2.74 2.75
V
BAT(FLT)
(V)
0 2
0
I
RFB
(µA)
8
6
10
12
18
3652 G11
4
2
64 8 10 12 1614
TIME (MINUTES)
0
EFFICIENCY (%)
CHARGE CURRENT (A); POWER LOSS (W)
0
0.5
2.0
2.5
1.5
1.0
40
80
100
3652 G12
3.0
35
45
75
65
55
95
85
20 60
140120
160 180 200
CHARGE
CURRENT
EFFICIENCY
POWER
LOSS
V
IN
= 20V
Maximum Charge Current
(V
SENSE
–V
BAT
) vs V
IN_REG
Voltage
V
FLOAT
Programming Resistor
Current vs V
FLOAT
for 2-Resistor
Network
Charge Current, Efficiency, and
Power Loss vs Time
(I
CHG(MAX)
= 2A; V
FLOAT
= 8.2V)
Charger Efficiency vs Battery
Voltage (I
CHG
= 2A)
V
BAT
(V)
70
EFFICIENCY
(%)
76
80
82
84
86
88
74
72
78
90
5 7 9 11 134 14 153 6 8 10 12
3652 G13
V
IN
= 20V WITH INPUT BLOCKING DIODE
Battery Bias Current with
Charger Disabled (I
BAT
+ I
SENSE
+
I
BOOST
+ I
SW
)
V
BAT
(V)
0
0
BATTERY CURRENT (µA)
2
6
8
10
12
18
3652 F14
4
6
2
14
8
4
16
10 18
12
14
16
V
IN
FLOATING
V
IN
= 20V
V
SHDN
= 0V
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LT3652HVEDD#TRPBF

Mfr. #:
Buy LT3652HVEDD#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management Pwr Track 2A Bat Chr
Lifecycle:
New from this manufacturer.
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