3
FN6260.6
October 21, 2009
Absolute Maximum Ratings (TA = +25°C)
Thermal Information
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Supply Turn On Voltage Slew Rate . . . . . . . . . . . . . . . . . . . . . 1V/s
Input Current (IN, FB) ISL28270, ISL28470 . . . . . . . . . . . . . . . 5mA
Differential Input Voltage (IN, FB) ISL28270, ISL28470 . . . . . . 0.5V
Input Current (IN, FB) ISL28273 . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Differential Input (IN, FB) Voltage ISL28273 . . . . . . . . . . . . . . . 1.0V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . V- - 0.5V to V+ + 0.5V
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V
Thermal Resistance (Typical Note
1)θJA (°C/W)
16 Ld QSOP Package . . . . . . . . . . . . . . . . . . . . . . .
110
28 Ld QSOP Package . . . . . . . . . . . . . . . . . . . . . . .
89
Output Short-Circuit Duration . . . . . . . . . . . . . . . . . . . . . . .Indefinite
Ambient Operating Temperature Range . . . . . . . . . -40°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . -65°C to +150°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . +125°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
1.
θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
Electrical Specifications
V+ = +5V, V- = 0V VCM = 1/2V+, RL = Open, TA = +25°C, unless otherwise specified.
Boldface limits apply over the operating temperature range, -40°C to +125°C.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
DC SPECIFICATIONS
VOS
Input Offset Voltage
ISL28270, ISL28470
-150
-225
±
35
150
225
V
ISL28273
-600
-1000
±
12
600
1000
V
TCVOS
Input Offset Voltage Temperature
Coefficient
Temperature = -40°C to +125°C
0.7
V/°C
IOS
Input Offset Current between IN+
and IN-, and between FB+ and FB-
ISL28270
-1
-1.5
±
0.25
1
1.5
nA
ISL28470
-1.5
-2.0
±
0.25
1.5
2
nA
ISL28273
-1
-1.5
±
0.2
1
1.5
nA
IB
Input Bias Current (IN+, IN-, FB+,
and FB- terminals)
ISL28270
-2.0
-2.5
±
0.5
2.0
2.5
nA
ISL28470
-2.5
-3.0
±
0.5
2.5
3.0
nA
ISL28273
-2.5
-3.0
±1
2.5
3.0
nA
RIN
Input Resistance
ISL28270, ISL28470
3
M
Ω
ISL28273
15
M
Ω
VIN
Input Voltage Range
05
V
CMRR
Common Mode Rejection Ratio
ISL28270
VCM = 0.05V to 5V
90
110
dB
ISL28273
85
110
dB
ISL28470
90
85
110
dB
PSRR
Power Supply Rejection Ratio
ISL28270
V+ = 2.4V to 5V
90
110
dB
ISL28273
80
75
95
dB
ISL28470
90
65
110
dB
ISL28270, ISL28273, ISL28470