LT1511 Linear Technology, LT1511 Datasheet - Page 3

• Manufacturer Part Number: LT1511
• Description: Constant-Current/ Constant-Voltage 3A Battery Charger with Input Current Limiting
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
R
PARAMETER
Overall
Boost Pin Current
Switch
Switch ON Resistance
Switch OFF Leakage Current
Minimum I
Minimum I
Maximum V
Current Sense Amplifier CA1 Inputs (Sense, BAT)
Input Bias Current
Input Common Mode Low
Input Common Mode High
SPIN Input Current
Reference
Reference Voltage (Note 3)
Reference Voltage
Oscillator
Switching Frequency
Switching Frequency
Maximum Duty Cycle
Current Amplifier CA2
Transconductance
Maximum V
I
VC
I
S2
BOOST
Current (Out of Pin)
= R
/ I
S3
SW
PROG
PROG
= 200 (see Block Diagram), V
BAT
C
for Switch OFF
During Switch ON
for Switch ON
for Switch ON
for Switch OFF at V
PROG
1V
CLN
= V
CC
CONDITIONS
V
V
2V V
8V V
8V V
V
V
V
20V < V
R
VA Supplying I
All Conditions of V
All Conditions of V
T
V
V
V
. No load on any outputs unless otherwise noted.
CC
CC
BOOST
BOOST
SW
A
C
C
C
PROG
= 25 C
= 1V, I
< 0.45V
A
= 20V, V
= 28V, V
= 0V, V
0.6V
= 25 C. V
BOOST
BOOST
CC
= 4.93k, Measured at OVP with
– V
= 24V, I
CC
VC
The
SW
V
CC
= 1 A
BOOST
BOOST
28V
– V
– V
MAX
PROG
SW
CC
CC
CC
2V
, I
20V
denotes specifications which apply over the full operating
CC
CC
SW
= 0V
= 0V
< 8V (Switch ON)
= 16V, V
and Switch OFF
, T
, T
3A
25V (Switch ON)
= 3A,
T
T
J
J
J
J
> 0 C
< 0 C (Note 4)
> 0 C
< 0 C
BAT
= 8V, V
MAX
(maximum operating V
– 0.25
2.453
2.441
2.43
MIN
180
170
160
150
85
90
2
1
2.465
– 100
0.15
TYP
– 50
250
200
200
0.1
0.25
2.4
25
93
6
8
2
4
4
CC
) = 28V,
V
V
2.477
2.489
– 125
– 200
2.489
MAX
CC
CC
0.25
550
100
200
220
230
230
100
0.6
10
20
12
35
20
9
3
LT1511
– 2
– 2
UNITS
mA/A
3
mho
kHz
kHz
kHz
mA
mA
mA
mA
%
%
V
A
A
A
A
A
V
A
V
V
A
V
V
V
A