LT1510/LT1510-5
ELECTRICAL CHARACTERISTICS
VCC = 16V, VBAT = 8V, VMAX (maximum operating VCC) = 28V, no load on any outputs, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Overall
Minimum Input Operating Voltage
Undervoltage Lockout
●
●
6.2
7
3
7.8
15
V
Reverse Current from Battery (When V Is Not
V
BAT
≤ 20V, 0°C ≤ T ≤ 70°C
µA
CC
J
Connected, V Is Floating)
SW
Boost Pin Current
V
– V
≤ 20V
BOOST
●
●
●
●
0.10
0.25
6
20
30
11
14
µA
µA
mA
mA
CC
BOOST
CC
20V < V – V
≤ 28V
2V ≤ V
8V < V
– V ≤ 8V (Switch ON)
BOOST
BOOST
CC
– V ≤ 25V (Switch ON)
8
CC
Switch
Switch ON Resistance
V
= 10V
CC
I
= 1.5A, V
– V ≥ 2V (Note 4)
●
●
0.3
20
0.5
2.0
Ω
Ω
SW
SW
BOOST
SW
I
= 1A, V
– V < 2V (Unboosted)
BOOST SW
∆I
/∆I During Switch ON
BOOST SW
V
V
= 24V, I ≤ 1A
35
mA/A
BOOST
SW
Switch OFF Leakage Current
= 0V, V ≤ 20V
●
●
2
4
100
200
µA
µA
SW
CC
20V < V ≤ 28V
CC
Maximum V
with Switch ON
for Switch ON
●
V
– 2
CC
V
µA
BAT
PROG
PROG
Minimum I
Minimum I
2
1
4
20
for Switch OFF at V
≤ 1V
●
2.4
mA
PROG
Current Sense Amplifier Inputs (SENSE, BAT)
Sense Resistance (R
)
S1
0.08
0.2
0.12
0.25
Ω
Ω
Total Resistance from SENSE to BAT (Note 3)
BAT Bias Current (Note 5)
V < 0.3V
C
–200
700
–375
1300
µA
µA
C
V > 0.6V
Input Common Mode Limit (Low)
Input Common Mode Limit (High)
Reference
●
●
–0.25
V
V
V
– 2
CC
Reference Voltage (Note 1) S8 Package
Reference Voltage (Note 2) 16-Pin
R
R
= 4.93k, Measured at PROG Pin
= 3.28k, Measured at OVP with
●
2.415
2.453
2.465
2.465
2.515
2.477
V
V
PROG
PROG
VA Supplying I
and Switch OFF
PROG
Reference Voltage Tolerance, 16-Pin Only
8V ≤ V ≤ 28V, 0°C ≤ T ≤ 70°C
●
●
●
2.446
2.441
2.430
2.465
2.480
2.489
2.489
V
V
V
CC
J
8V ≤ V ≤ 28V, 0°C ≤ T ≤ 125°C
CC
J
8V ≤ V ≤ 28V, T < 0°C
CC
J
Oscillator
Switching Frequency
LT1510
LT1510-5
180
440
200
500
220
550
kHz
kHz
Switching Frequency Tolerance
Maximum Duty Cycle
All Conditions of V , Temperature, LT1510
●
●
●
●
170
160
425
400
200
230
230
575
575
kHz
kHz
kHz
kHz
CC
LT1510, T < 0°C
J
LT1510-5
500
LT1510-5, T < 0°C
J
LT1510
●
●
87
90
77
%
%
%
LT1510, T = 25°C (Note 8)
93
81
A
LT1510-5 (Note 9)
3
Linear [ Linear ]
