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LT1510-5IGN Datasheet(PDF) 3 Page - Linear Technology

Part # LT1510-5IGN
Description  Constant-Voltage/ Constant-Current Battery Charger
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1510-5IGN Datasheet(HTML) 3 Page - Linear Technology

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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
q
6.2
7
7.8
V
Reverse Current from Battery (When VCC Is Not
VBAT ≤ 20V, 0°C ≤ TJ ≤ 70°C
q
315
µA
Connected, VSW Is Floating)
Boost Pin Current
VCC – VBOOST ≤ 20V
q
0.10
20
µA
20V < VCC – VBOOST ≤ 28V
q
0.25
30
µA
2V
≤ VBOOST – VCC ≤ 8V (Switch ON)
q
611
mA
8V < VBOOST – VCC ≤ 25V (Switch ON)
q
814
mA
Switch
Switch ON Resistance
VCC = 10V
ISW = 1.5A, VBOOST – VSW ≥ 2V (Note 4)
q
0.3
0.5
Ω
ISW = 1A, VBOOST – VSW < 2V (Unboosted)
q
2.0
Ω
∆IBOOST/∆ISW During Switch ON
VBOOST = 24V, ISW ≤ 1A
20
35
mA/A
Switch OFF Leakage Current
VSW = 0V, VCC ≤ 20V
q
2
100
µA
20V < VCC ≤ 28V
q
4
200
µA
Maximum VBAT with Switch ON
q
VCC – 2
V
Minimum IPROG for Switch ON
24
20
µA
Minimum IPROG for Switch OFF at VPROG ≤ 1V
q
1
2.4
mA
Current Sense Amplifier Inputs (SENSE, BAT)
Sense Resistance (RS1)
0.08
0.12
Ω
Total Resistance from SENSE to BAT (Note 3)
0.2
0.25
Ω
BAT Bias Current (Note 5)
VC < 0.3V
– 200
– 375
µA
VC > 0.6V
700
1300
µA
Input Common Mode Limit (Low)
q
– 0.25
V
Input Common Mode Limit (High)
q
VCC – 2
V
Reference
Reference Voltage (Note 1) S8 Package
RPROG = 4.93k, Measured at PROG Pin
q
2.415
2.465
2.515
V
Reference Voltage (Note 2) 16-Pin
RPROG = 3.28k, Measured at OVP with
2.453
2.465
2.477
V
VA Supplying IPROG and Switch OFF
Reference Voltage Tolerance, 16-Pin Only
8V
≤ VCC ≤ 28V, 0°C ≤ TJ ≤ 70°C
q
2.446
2.465
2.480
V
8V
≤ VCC ≤ 28V, 0°C ≤ TJ ≤ 125°C
q
2.441
2.489
V
8V
≤ VCC ≤ 28V, TJ < 0°C
q
2.430
2.489
V
Oscillator
Switching Frequency
LT1510
180
200
220
kHz
LT1510-5
440
500
550
kHz
Switching Frequency Tolerance
All Conditions of VCC, Temperature, LT1510
q
170
200
230
kHz
LT1510, TJ < 0°C
q
160
230
kHz
LT1510-5
q
425
500
575
kHz
LT1510-5, TJ < 0°C
q
400
575
kHz
Maximum Duty Cycle
LT1510
q
87
%
LT1510, TA = 25°C (Note 8)
90
93
%
LT1510-5 (Note 9)
q
77
81
%



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