2
FN6390.2
August 17, 2007
Absolute Maximum Ratings (TA = +25°C)
Thermal Information
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Supply Turn-on Voltage Slew Rate . . . . . . . . . . . . . . . . . . . . . 1V/s
Input Current (IN, FB) ISL28272 . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Differential Input Voltage (IN, FB) ISL28272 . . . . . . . . . . . . . . . 0.5V
Input Current (IN, FB) ISL28271 . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Differential Input (IN, FB) Voltage ISL28271 . . . . . . . . . . . . . . . 1.0V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . V- - 0.5V to V+ + 0.5V
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V
Thermal Resistance
θJA (°C/W)
16 Ld QSOP Package . . . . . . . . . . . . . . . . . . . . . . .
112
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.
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- = GND, VFB+ = 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
VOS
Input Offset Voltage
ISL28271
-600
-1200
±35
600
1200
V
ISL28272
-500
-750
±
35
500
750
V
TCVOS
Input Offset Voltage Temperature
Coefficient -40°C to +125°C
0.7
V/°C
IOS
Input Offset Current between IN+ and
IN-, and between FB+ and FB-
See graphs for extended temperature range
-40°C to +85°C
-30
-80
±5
30
80
pA
IB
Input Bias Current (IN+, IN-, FB+, and
FB- terminals)
See graphs for extended temperature range
-40°C to +85°C
-30
-80
±10
30
80
pA
eN
Input Noise Voltage
ISL28271
f = 0.1Hz to 10Hz
10
VP-P
ISL28272
6
VP-P
Input Noise Voltage Density
ISL28271
fo = 1kHz
240
nV/
√Hz
ISL28272
78
nV/
√Hz
iN
Input Noise Current Density
ISL28271
fo = 1kHz
0.92
pA/
√Hz
ISL28272
0.2
pA/
√Hz
RIN
Input Resistance
1G
Ω
VIN
Input Voltage Range
V+ = 2.4V to 5.0V
0
V+
V
CMRR
Common Mode Rejection Ratio
ISL28271
VCM = 0V to 5V
80
70
100
dB
ISL28272
80
75
100
dB
PSRR
Power Supply Rejection Ratio
V+ = 2.4V to 5V
80
75
100
dB
EG
Gain Error
ISL28271
RL = 100kΩ to 2.5V
+0.081
%
ISL28272
-0.19
ISL28271, ISL28272