ISL6423B Datasheet, PDF (5/16 Pages) Intersil Corporation – Single Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs

Absolute Maximum Ratings
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V to 18.0V
Logic Input Voltage Range
(SDA, SCL, ENT, DSQIN 1 and 2, SEL18V 1 and 2) . -0.5V to 7V
Thermal Information
Thermal Resistance (Typical, Notes 2, 3) θ_JA (°C/W) θ_JC (°C/W)
QFN Package (Notes 2, 3) . . . . . . . . . .
38
4.5
EPTSSOP Package (Notes 2, 3) . . . . .
35
2.5
Maximum Junction Temperature (Note 4) . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . -40°C to +150°C
Operating Temperature Range . . . . . . . . . . . . . . . . . -20°C to +85°C
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:
2. θ_JA 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.
3. For θ_JC, the "case temp" location is the center of the exposed metal pad on the package underside.
4. +150°C max junction temperature is intended for short periods of time to prevent shortening the lifetime. Operation close to +150°C junction may
trigger the shutdown of the device even before +150°C, since this number is specified as typical.
Electrical Specifications
V_CC = 12V, T_A = -20°C to +85°C, unless otherwise noted. Typical values are at T_A = +25°C. EN = H, VTOP
VBOT = L, ENT = L, DCL = L, I_OUT = 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
8
12
14
V
Standby Supply Current
EN = L
-
1.5
3.0
mA
Supply Current
UNDERVOLTAGE LOCKOUT
I_IN
EN = VTOP = VBOT = ENT = H, No Load
-
4.0
8.0
mA
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 5)
(Note 5)
-
8196
-
Cycles
Output Voltage (Note 5)
Line Regulation
Load Regulation
Dynamic Output Current Limiting
V_O1
(Refer to Table 1)
13.04 13.3 13.56
V
V_O1
(Refer to Table 1)
14.02 14.3 14.58
V
V_O1
(Refer to Table 1)
17.94 18.3 18.66
V
V_O1
(Refer to Table 1)
19.00 19.3 19.68
V
DV_O1,
DV_O2
V_IN = 8V to 14V; V_O = 13.3V
V_IN = 8V to 14V; V_O = 18.3V
-
4.0
40.0
mV
-
4.0
60.0
mV
DV_O1,
DV_O2
I_O = 0mA to 350mA
I_O = 0mA to 750mA
-
50
80
mV
-
100
200
mV
I_MAX DCL = 0, ISEL H = 0, ISEL L = 0 (Note 8)
275
305
345
mA
DCL = 0, ISEL H = 0, ISEL L = 1 (Note 8)
515
570
630
mA
DCL = 0, ISEL H = 1, ISEL L = 0 (Note 8)
635
705
775
mA
DCL = 0, ISEL H = 1, ISEL L = 1 (Note 8)
800
890
980
mA
Dynamic Overload Protection Off Time TOFF DCL = 0, Output Shorted (Note 8)
-
900
-
ms
Dynamic Overload Protection On Time
TON
-
51
-
ms
Static Output Current Limiting
Cable Fault CABF Threshold
I_MAX
I_CAB
DCL = 1 (Note 8)
EN = 1, V_O = 19V, No Tone.
-
1000
-
mA
2
10
20
mA
5
FN6412.1
April 10, 2007