LT3652 LINER [Linear Technology], LT3652 Datasheet - Page 3

• Manufacturer Part Number: LT3652
• Description: Power Tracking 2A Battery Charger for Solar Power
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
V
V
V
V
ΔV
V
V
V
I
I
I
I
V
I
V
V
V
I
I
I
I
I
V
V
V
R
I
V
V
I
V
I
V
IN_REG
VIN
BOOST
BOOST/
SW(MAX)
BAT
SENSE
REVERSE
VFB
VFB
NTC
SHDN
TIMER
TIMER(DIS)
IN
IN(OVLO)
IN(UVLO)
FB(FLT)
FB(PRE)
FB(PREHYST)
IN_REG(TH)
SW(ON)
SENSE(PRE)
SENSE(DC)
SENSE(C/10)
NTC(H)
NTC(L)
NTC(HYST)
SHDN
SHDN(HYST)
CHRG
NTC(DIS)
RECHARGE
, V
I
SW
FAULT
PARAMETER
V
V
OVLO Threshold
OVLO Hysteresis
UVLO Threshold
UVLO Hysteresis
Float Voltage Reference
Recharge Reference Threshold
Reference Precondition Threshold
Reference Precondition Threshold
Hysteresis
Input Regulation Reference
Input Regulation Reference Bias Current V
Operating Input Supply Current
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
Charger Reverse Current
I
V
V
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
BAT
IN
IN
FB
FB
Operating Range
Start Voltage
Input Bias Current
Input Bias Current
+ I
SENSE
+ I
SW
A
= 25°C. V
CONDITIONS
V
V
V
V
(Note 6)
Voltage Relative to V
V
Voltage Relative to V
V
CC/CV Mode, I
Standby Mode
Shutdown (SHDN = 0)
Switch On, I
2.5 < V
I
V
V
V
V
Charging Terminated
Charging Terminated
V
Charging Terminated
CV Operation (Note 5)
V
V
% of threshold
Impedance to ground
V
Rising
10mA Load
SW
BAT
BAT
IN
IN
FB
FB
IN_REG
IN
SENSE
SENSE
SENSE
IN
NTC
NTC
NTC
The
Rising
Rising
– V
= 0; V
Rising (Note 6)
= 3V; V
= 2A
= 4.2 (Notes 3, 4)
= 4.2 (Note 4)
Rising
Falling
= 0.8V
(BOOST – SW)
SW
– V
– V
– V
= V
l
, I
BAT
IN
BAT
BAT
BAT
denotes the specifi cations which apply over the full operating
SENSE
SW
IN_REG(TH)
SW
= 20V, Boost – SW = 4V, SHDN = 2V, V
= V
; V
; V
, Falling
SW
= 2A
= 0,
FB
FB
SENSE
– V
= 0
= 2V
= 3V (Note 7)
< 8.5
FB(FLT)
FB(PRE)
BAT
= V
= 50mV
SW
(Note 6)
(Note 6)
= 4.2V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
3.282
MIN
4.95
3.26
2.65
1.25
0.27
47.5
1.15
250
7.5
2.5
7.5
0.1
32
95
FB
= 3.3V, C
82.5
1.36
0.29
0.25
TYP
350
100
110
500
120
–10
4.6
0.2
3.3
2.3
2.7
2.5
0.1
0.1
1.2
35
70
35
85
15
20
30
15
10
65
20
50
25
1
3
1
TIMER
LT3652
3.318
0.315
MAX
4.95
3.34
2.75
12.5
1.45
52.5
1.25
100
105
3.5
0.4
32
40
1
1
= 0.68μF.
UNITS
mA/A
3652fb
3
mV
mV
mA
mA
mV
mV
mV
mV
mV
kΩ
nA
μA
μA
μA
μA
μA
nA
nA
μA
nA
μA
%
V
V
V
V
V
V
V
V
V
V
A
V
V
V
V
V