(Note 2) ............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
V
IN
V
IN_REG
SHDN
CHRG
FAULT
TIMER
1
2
3
4
5
6
13
GND
12 SW
11 BOOST
10 SENSE
9 BAT
8 NTC
7 V
FB
V
IN
V
IN_REG
SHDN
CHRG
FAULT
TIMER
1
2
3
4
5
6
TOP VIEW
12
11
10
9
8
7
SW
BOOST
SENSE
BAT
NTC
V
FB
13
GND
DD PACKAGE
12-LEAD (3mm
×
3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 43°C/W,
θ
JC
= 3°C/W
EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
MSE PACKAGE
12-LEAD PLASTIC MSOP
T
JMAX
= 125°C,
θ
JA
= 43°C/W,
θ
JC
= 3°C/W
EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3652HVEDD#PBF
LT3652HVIDD#PBF
LT3652HVEMSE#PBF
LT3652HVIMSE#PBF
TAPE AND REEL
LT3652HVEDD#TRPBF
LT3652HVIDD#TRPBF
LT3652HVEMSE#TRPBF
LT3652HVIMSE#TRPBF
PART MARKING*
LFRG
LFRG
3652HV
3652HV
PACKAGE DESCRIPTION
12-Lead Plastic DFN 3mm
×
3mm
12-Lead Plastic DFN 3mm
×
3mm
12-Lead Plastic MSOP
12-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–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/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
2
3652hvfb
For more information
www.linear.com/LT3652HV
LT3652HV
ELECTRICAL CHARACTERISTICS
SYMBOL
V
IN
V
IN(OVLO)
V
IN(UVLO)
V
FB(FLT)
ΔV
RECHARGE
V
FB(PRE)
V
FB(PREHYST)
V
IN_REG(TH)
I
IN_REG
I
VIN
I
BOOST
I
BOOST/
I
SW
V
SW(ON)
I
SW(MAX)
V
SENSE(PRE)
V
SENSE(DC)
V
SENSE(C/10)
I
BAT
I
SENSE
I
VFB
I
VFB
V
NTC(H)
V
NTC(L)
V
NTC(HYST)
R
NTC(DIS)
I
NTC
V
SHDN
V
SHDN(HYST)
I
SHDN
V
CHRG
, V
FAULT
I
TIMER
V
TIMER(DIS)
PARAMETER
V
IN
Operating Range
V
IN
Start Voltage
OVLO Threshold
OVLO Hysteresis
UVLO Threshold
UVLO Hysteresis
Float Voltage Reference
Recharge Reference Threshold
Reference Precondition Threshold
Reference Precondition Threshold
Hysteresis
Input Regulation Reference
Operating Input Supply Current
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.
CONDITIONS
V
BAT
= 4.2 (Notes 3, 4)
V
BAT
= 4.2 (Note 4)
V
IN
Rising
V
IN
Rising
(Note 6)
l
l
l
l
MIN
4.95
7.5
34
TYP
MAX
34
UNITS
V
V
V
V
V
V
V
V
mV
V
mV
35
1
4.6
0.2
40
4.95
3.318
3.34
3.282
3.26
3.3
82.5
2.3
70
Voltage Relative to V
FB(FLT)
(Note 6)
V
FB
Rising (Note 6)
Voltage Relative to V
FB(PRE)
(Note 6)
V
FB
= 3V; V
SENSE
– V
BAT
= 50mV
CC/CV Mode, I
SW
= 0
Standby Mode
Shutdown (SHDN = 0)
Switch On, I
SW
= 0,
2.5 < V
(BOOST – SW)
< 8.5
I
SW
= 2A
V
IN
– V
SW
, I
SW
= 2A
l
l
l
l
2.65
2.7
35
2.5
85
15
20
30
350
2.75
100
3.5
V
nA
mA
µA
µA
mA
mA/A
mV
A
mV
Input Regulation Reference Bias Current V
IN_REG
= V
IN_REG(TH)
BOOST Supply Current
BOOST Switch Drive
Switch-On Voltage Drop
Switch Current Limit
Precondition Sense Voltage
Maximum Sense Voltage
C/10 Trigger Sense Voltage
BAT Input Bias Current
SENSE Input Bias Current
V
FB
Input Bias Current
V
FB
Input Bias Current
NTC Range Limit (High)
NTC Range Limit (Low)
NTC Threshold Hysteresis
NTC Disable Impedance
NTC Bias Current
Shutdown Threshold
Shutdown Hysteresis
SHDN
Input Bias Current
Status Low Voltage
Charge/Discharge Current
Timer Disable Threshold
2.5
95
7.5
3
15
100
10
0.1
0.1
65
110
105
12.5
1
1
V
SENSE
– V
BAT
; V
FB
= 2V
V
SENSE
– V
BAT
; V
FB
= 3V (Note 7)
V
SENSE
– V
BAT
, Falling
Charging Terminated
Charging Terminated
Charging Terminated
CV Operation (Note 5)
V
NTC
Rising
V
NTC
Falling
% of threshold
Impedance to ground
V
NTC
= 0.8V
Rising
l
l
l
l
l
l
l
mV
mV
µA
µA
nA
nA
1.25
0.27
250
47.5
1.15
1.36
0.29
20
500
50
1.2
120
–10
1.45
0.315
V
V
%
kΩ
52.5
1.25
µA
V
mV
nA
10mA Load
l
0.4
25
0.1
0.25
V
µA
V
l
3652hvfb
For more information
www.linear.com/LT3652HV
3
LT3652HV
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.
SYMBOL
t
TIMER
PARAMETER
Full Charge Cycle Timeout
Precondition Timeout
Timer Accuracy
f
O
DC
Operating Frequency
Duty Cycle Range
Continuous Operation
l
l
ELECTRICAL CHARACTERISTICS
CONDITIONS
MIN
TYP
3
22.5
MAX
UNITS
hr
min
–10
1
15
10
90
%
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 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
汽车电子
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
