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LT1510I Datasheet

  • LT1510I

  • Linear Technology [Constant-Voltage/ Constant-Current Batte...

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LT1510/LT1510-5
ELECTRICAL CHARACTERISTICS
V
CC
= 16V, V
BAT
= 8V, V
MAX
(maximum operating V
CC
) = 28V, no load on any outputs, unless otherwise noted.
PARAMETER
Current Amplifier (CA2)
Transconductance
Maximum V
C
for Switch OFF
I
VC
Current (Out of Pin)
Voltage Amplifier (VA), 16-Pin Only
Transconductance (Note 2)
Output Source Current, V
CC
= 10V
OVP Input Bias Current
Output Current from 100碌A(chǔ) to 500碌A(chǔ)
V
PROG
= V
OVP
= V
REF
+ 10mV
At 0.75mA VA Output Current
q
CONDITIONS
V
C
= 1V, I
VC
=
鹵1碌A(chǔ)
q
MIN
150
TYP
250
MAX
550
0.6
100
3
UNITS
碌mho
V
碌A(chǔ)
mA
mho
mA
nA
V
C
鈮?/div>
0.6V
V
C
< 0.45V
0.5
1.3
50
1.2
2.5
150
The
q
denotes specifications which apply over the specified
temperature range.
Note 1:
Tested with Test Circuit 1.
Note 2:
Tested with Test Circuit 2.
Note 3:
Sense resistor R
S1
and package bond wires.
Note 4:
Applies to 16-pin only. 8-pin packages are guaranteed but not
tested at 鈥?40擄C.
Note 5:
Current (鈮?700碌A(chǔ)) flows into the pins during normal operation and
also when an external shutdown signal on the V
C
pin is greater than 0.3V.
Current decreases to
鈮?/div>
200碌A(chǔ) and flows out of the pins when external
shutdown holds the V
C
pin below 0.3V. Current drops to near zero when
input voltage collapses. See external Shutdown in Applications Information
section.
Note 6:
A linear interpolation can be used for reference voltage
specification between 0擄C and 鈥?40擄C.
Note 7:
Commercial grade device specifications are guaranteed over the
0擄C to 70擄C temperature range. In addition, commercial grade device
specifications are assured over the 鈥?0擄C to 85擄C temperature range by
design or correlation, but are not production tested.
Maximum allowable ambient temperature may be limited by power
dissipation. Parts may not necessarily be operated simultaneously at
maximum power dissipation and maximum ambient temperature.
Temperature rise calculations must be done as shown in the Applications
Information section to ensure that maximum junction temperature does
not exceed the 125擄C limit. With high power dissipation, maximum
ambient temperature may be less than 70擄C.
Note 8:
Industrial grade device specifications are guaranteed over the
鈥?40擄C to 85擄C temperature range.
Note 9:
91% maximum duty cycle is guaranteed by design if V
BAT
or V
X
(see Figure 8 in Application Information) is kept between 3V and 5V.
Note 10:
V
BAT
= 4.2V.
TYPICAL PERFORMANCE CHARACTERISTICS
Thermally Limited Maximum
Charging Current, 8-Pin SO
1.3
MAXIMUM CHARGING CURRENT (A)
MAXIMUM CHARGING CURRENT (A)
1.1
1.3
MAXIMUM CHARGING CURRENT (A)
(胃
JA
=125擄C/W)
T
AMAX
= 60擄C
T
JMAX
=125擄C
4V BATTERY
0.9
8V BATTERY
0.7
12V BATTERY
0.5
16V BATTERY
0.3
0
5
15
10
INPUT VOLTAGE (V)
20
25
1510 G12
4
U W
Thermally Limited Maximum
Charging Current, 16-Pin SO
1.5
4V BATTERY
8V BATTERY
12V BATTERY
1.1
16V BATTERY
0.9
1.5
Thermally Limited Maximum
Charging Current, 16-Pin GN
1.3
4V BATTERY
1.1
8V BATTERY
0.9
0.7
(胃
JA
=50擄C/W)
T
AMAX
=60擄C
T
JMAX
=125擄C
0
5
15
10
INPUT VOLTAGE (V)
20
25
1510 G13
0.7
胃
JA
= 80擄C/W
T
AMAX
= 60擄C
T
JMAX
= 125擄C
0
5
12V BATTERY
16V BATTERY
20
25
0.5
0.5
15
10
INPUT VOLTAGE (V)
LT1510 鈥?TPC14

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