lt3650-4.1 Linear Technology Corporation, lt3650-4.1 Datasheet - Page 3

• Manufacturer Part Number: lt3650-4.1
• Description: High Voltage 2 Amp Monolithic Li-ion Battery Charger
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
SYMBOL
LT3650
V
V
V
V
ΔV
V
V
I
I
I
V
I
V
V
I
V
V
I
I
I
V
V
V
R
I
I
V
V
V
I
temperature range, otherwise specifi cations are at V
VIN
BOOST
BOOST
SW(MAX)
CLP
BAT
SENSE
REVERSE
NTC
RNG/SS
SHDN
IN
IN(OVLO)
IN(UVLO)
BAT(FLT)
BAT(PRE)
BAT(PREHYST)
SW(ON)
SENSE(PRE)
CLP(DC)
SENSE(DC)
SENSE(C/10)
NTC(H)
NTC(L)
NTC(HYST)
RNG/SS
SHDN
SHDN(HYST)
NTC(DIS)
RECHRG
/I
/ V
SW
SENSE
PARAMETER
V
V
OVLO Threshold
OVLO Hysteresis
UVLO Threshold
UVLO Hysteresis
Battery Float Voltage
Recharge Battery Threshold
Battery Precondition Threshold Voltage
Battery Precondition Threshold
Hysteresis
Operating Input Supply Current
BOOST Supply Current
BOOST Switch Drive
Switch-On Voltage Drop
Switch Current Limit
Precondition Current Sense Voltage
CLP Threshold Voltage
CLP Input Bias Current
Maximum Current Sense Voltage
C/10 Trigger Sense Voltage
BAT Input Bias Current
SENSE Input Bias Current
Charger Reverse Current:
I
NTC Range Limit (High)
NTC Range Limit (Low)
NTC Threshold Hysteresis
NTC Disable Impedance
NTC Bias Current
I
Current Limit Programming:
V
Shutdown Threshold
Shutdown Hysteresis
SHDN Input Bias Current
BAT
RNG/SS
IN
IN
RNG/SS
Operating Range
Start Voltage
+ I
SENSE
Bias Current
/V
SENSE(MAX)
+ I
SW
IN
= 20V, BOOST-SW = 4V, SHDN = 2V, SENSE = BAT = V
CONDITIONS
(Note 3)
V
V
LT3650-4.1
LT3650-4.2
Threshold Voltage Relative to V
V
CC/CV Mode, I
Standby Mode
Shutdown (SHDN = 0)
Switch-On, I
2.5V < V
I
V
V
V
V
V
Charging Terminated
Charging Terminated
V
V
V
% of Threshold
Minimum External Impedance to GND
V
V
Rising
SW
IN
IN
BAT
IN
SENSE
BAT
CLP
SENSE
IN
NTC
NTC
NTC
RNG/SS
The
Rising
Rising
– V
= 0V; BAT = SENSE = SW = V
= 2A
Rising
= 2.5
– V
Rising
Falling
= 0.8V
SW
– V
– V
(BOOST – SW)
l
IN
= 0.5
, I
; V
BAT
BAT
denotes the specifi cations which apply over the full operating
SW
SW
SENSE
; V
SW
= 2A
= 0
BAT
= 0
– V
= 3.5V, V
< 4.5V
BAT
= 50mV
RNG/SS
BAT(FLT)
LT3650-4.1/LT3650-4.2
BAT(FLT)
= 1.2V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
4.75
4.08
4.06
4.18
4.16
37.5
1.25
0.27
47.5
1.17
250
2.5
7.5
8.5
32
95
45
BAT(FLT)
–100
1.36
0.29
1.20
TYP
350
200
100
500
120
–10
4.6
0.2
4.1
4.2
2.9
2.5
0.1
0.1
35
90
85
15
20
30
15
50
10
20
50
50
10
1
1
, C
TIMER
0.315
MAX
4.75
4.12
4.14
4.22
4.24
62.5
12.5
1.45
52.5
11.5
1.23
105
7.5
3.5
32
40
55
1
1
= 0.68μF .
36504142fb
UNITS
mA/A
3
V/V
mV
mV
mA
mA
mV
mV
mV
mV
mV
mV
kΩ
μA
μA
nA
μA
μA
μA
μA
μA
nA
%
V
V
V
V
V
V
V
V
V
V
V
A
V
V
V