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ISL6421 Datasheet(PDF) 4 Page - Intersil Corporation

Part No. ISL6421
Description  Single Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-top Box Designs
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ISL6421 Datasheet(HTML) 4 Page - Intersil Corporation

 
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4
Absolute Maximum Ratings
Thermal Information
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V to 18.0V
Logic Input Voltage Range (SDA, SCL, ENT) . . . . . . . . -0.5V to 7V
Output Current . . . . . . . . . . . . . . . . . . . . Externally/Internally Limited
Thermal Resistance
θJA (oC/W) θJC (oC/W)
QFN Package (Notes 1, 2). . . . . . . . . .
32
4
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . . -40oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
NOTE: The device junction temperature should be kept below
150oC. Thermal shut-down circuitry turns off the device if junction
temperature exceeds +150oC typically.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1.
θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For
θJC, the “case temperature” location is the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
VCC = 12V, TA = -20oC to +85oC, unless otherwise noted. Typical values are at TA = 25oC. EN = H, LLC = L,
ENT = L, DCL = L, DSQIN = L, IOUT = 12mA, unless otherwise noted. See software description section for I2C
access to the system.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage Range
812
14
V
Standby Supply Current
EN = L
-
1.5
3.0
mA
Supply Current
IIN
EN = LLC = VSEL = ENT = H, No Load
-
4.0
8.0
mA
UNDER VOLTAGE LOCKOUT
Start Threshold
7.5
-
7.95
V
Stop Threshold
7.0
-
7.55
V
Start to Stop Hysteresis
350
400
500
mV
SOFT START
COMP Rise Time (Note 2)
(Note 4)
-
1024
-
Cycles
OUTPUT VOLTAGE
Output Voltage (Note 3)
VOUT
VSEL = L, LLC = L
12.74
13.0
13.26
V
VOUT
VSEL = L, LLC = H
13.72
14.0
14.28
V
VOUT
VSEL = H, LLC = L
17.64
18.0
18.36
V
VOOU
VSEL = H, LLC = H
18.62
19.0
19.38
V
Line Regulation
DVOUT
VIN = 8V to 14V; VOUT = 13V
-
4.0
40.0
mV
VIN = 8V to 14V; VOUT = 18V
-
4.0
60.0
mV
Load Regulation
DVOUT
IO = 12mA to 450mA
-
50
80
mV
Dynamic Output Current Limiting
IMAX
DCL = L
575
-
950
mA
Dynamic Overload Protection Off Time
TOFF
DCL = L, Output Shorted (Note 4)
-
900
-
ms
Dynamic Overload Protection On Time
TON
-
20
-
ms
22kHz TONE
Tone Frequency
ftone
ENT = H
20.0
22.0
24.0
kHz
Tone Amplitude
Vtone
ENT = H
550
680
900
mV
Tone Duty Cycle
dctone
ENT = H
405060
%
Tone Rise or Fall Time
Tr, Tf
ENT = H
5
8
14
µs
ISL6421


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