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ISL8841AAUZ Datasheet(PDF) 8 Page - Intersil Corporation

Part # ISL8841AAUZ
Description  High Performance Industry Standard Single-Ended Current Mode PWM Controller
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL8841AAUZ Datasheet(HTML) 8 Page - Intersil Corporation

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8
FN6320.3
April 18, 2007
Electrical Specifications
ISL884xAM - Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
Typical Application schematic. VDD = 15V, RT = 10kΩ, CT = 3.3nF, TA = -55 to +125°C (Note 7), Typical values
are at TA = +25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT
START Threshold (ISL8840A, ISL8841A)
6.5
7.0
7.5
V
START Threshold (ISL8843A, ISL8845A)
8.0
8.4
9.0
V
START Threshold (ISL8842A, ISL8844A)
(Note 10)
13.3
14.3
15.3
V
STOP Threshold (ISL8840A, ISL8841A)
6.1
6.6
6.9
V
STOP Threshold (ISL8843A, ISL8845A)
7.3
7.6
8.0
V
STOP Threshold (ISL8842A, ISL8844A)
8.0
8.8
9.6
V
Hysteresis (ISL8840A, ISL8841A)
-
0.4
-
V
Hysteresis (ISL8843A, ISL8845A)
-
0.8
-
V
Hysteresis (ISL8842A, ISL8844A)
-
5.4
-
V
Startup Current, IDD
VDD < START Threshold
-
90
125
μA
Operating Current, IDD
(Note 8)
-
2.9
4.0
mA
Operating Supply Current, ID
Includes 1nF GATE loading
-
4.75
5.5
mA
REFERENCE VOLTAGE
Overall Accuracy
Over line (VDD = 12V to 30V), load,
temperature
4.900
5.000
5.050
V
Long Term Stability
TA = +125°C, 1000 hours (Note 9)
-
5
-
mV
Current Limit, Sourcing
-20
-
-
mA
Current Limit, Sinking
5-
-
mA
CURRENT SENSE
Input Bias Current
VCS = 1V
-1.0
-
1.0
μA
CS Offset Voltage
VCS = 0V (Note 9)
95
100
105
mV
COMP to PWM Comparator Offset Voltage
VCS = 0V (Note 9)
0.80
1.15
1.30
V
Input Signal, Maximum
0.97
1.00
1.03
V
Gain, ACS = ΔVCOMP/ΔVCS
0 < VCS < 910mV, VFB = 0V
2.5
3.0
3.5
V/V
CS to OUT Delay
-35
60
ns
ERROR AMPLIFIER
Open Loop Voltage Gain
(Note 9)
60
90
-
dB
Unity Gain Bandwidth
(Note 9)
1.0
1.5
-
MHz
Reference Voltage
VFB = VCOMP
2.460
2.500
2.535
V
FB Input Bias Current
VFB = 0V
-1.0
-0.2
1.0
μA
COMP Sink Current
VCOMP = 1.5V, VFB = 2.7V
1.0
-
-
mA
COMP Source Current
VCOMP = 1.5V, VFB = 2.3V
-0.4
-
-
mA
COMP VOH
VFB = 2.3V
4.80
-
VREF
V
COMP VOL
VFB = 2.7V
0.4
-
1.0
V
PSRR
Frequency = 120Hz, VDD = 12V to
30V (Note 9)
60
80
-
dB
OSCILLATOR
Frequency Accuracy
Initial, TA = +25°C
485153
kHz
Frequency Variation with VDD
TA = +25°C, (f30V - f10V)/f30V
-0.2
1.0
%
Temperature Stability
(Note 9)
-
-
5
%
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A


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