isl6422b Intersil Corporation, isl6422b Datasheet - Page 6

• Manufacturer Part Number: isl6422b
• Description: Dual Output Lnb Supply And Control Voltage Regulator With I2c Interface For Advanced Satellite Set-top Box Designs
• Manufacturer: Intersil Corporation

Electrical Specifications
Dynamic Output Current Limiting
(Note 9)
Dynamic Overload Protection Off Time
Dynamic Overload Protection On Time
Static Output Current Limiting
Cable Fault CABF Asserted High
TONE OSCILLATOR
Tone Frequency
Tone Amplitude
Tone Duty Cycle
Tone Rise or Fall Time
TONE DECODER
Input Amplitude
Frequency Capture Range
Input Impedance
Detector Output Voltage
Detector Output Leakage
Tone Decoder Rx Threshold
Tone Decoder Tx Threshold
LINEAR REGULATOR
Drop-out Voltage
Output Backward Leakage Current
Output Backward Leakage Current
Output Backward Current Threshold
Output Backward Current Limit
Output Backward Voltage
Output Undervoltage
(Asserted high during soft-start)
Output Overvoltage
(Asserted high during soft-start)
PARAMETER
6
V
VTOP1/2 = L, VBOT1/2 = L, ENT1/2 = L, DCL = L, MSEL1/2 = L, I
software description section for I
CC
= 12V, T
V
I
SYMBOL
TDOUT_H
TDOUT_L
dc
V
F
V
I
I
V
I
I
V
V
Z
I
I
t
I
f
BKTH
BKLM
BKLK
BKLK
MAX
t
MAX
OFF
CAB
tone
TDIN
TDIN
t, t
RXth
DET
TXth
OBK
ON
tone
tone
A
f
= -20°C to +85°C, unless otherwise noted. Typical values are at T
DCL = 0, ISEL1H, ISEL2H = 0, ISEL1L,
ISEL2L = 0, ISEL1R, ISEL2R = 0
DCL = 0, ISEL1H, ISEL2H = 0, ISEL1L,
ISEL2L = 0, ISEL1R, ISEL2R = 1
DCL = 0, ISEL1H, ISEL2H = 0, ISEL1L,
ISEL2L = 1, ISEL1R, ISEL2R = 1
DCL = 0, ISEL1H, ISEL2H = 1, ISEL1L,
ISEL2L = 0, ISEL1R, ISEL2R = 1
DCL = 0, ISEL1/2H = 1, ISEL1/2L = 1,
ISEL1/2R = 1
DCL = L, Output Shorted (Note 9)
DCL = 1 (Notes 6, 9)
EN1 and EN2 = 1;
ENT1, ENT2 = H
ENT1, ENT2 = H
ENT1, ENT2 = H
ENT1, ENT2 = H
Tone Present, I
Tone absent, V
TXT1, TXT2 = L
TXT1, TXT2 = H
I
EN1 and EN2 = 0; V
EN1 and EN2 = 0; V
EN1 and EN2 = 1; V
EN1 and EN2 = 1; V
EN1 and EN2 = 0
OUVF1, OUVF2 bit is asserted high,
measured from the typ output set value
OUVF1, OUVF2 bit is asserted high,
measured from the typ output set value
OUT
= 750mA (Note 6)
ISL6422B
2
TEST CONDITIONS
C access to the system. (Continued)
LOAD
O
= 6V
OBK
OBK
OFAULT
OFAULT
= 3mA
= 27V
= 28V
= 19V (Note 8)
= 19V (Note 8)
OUT
20.0
17.5
MIN
270
350
515
635
800
500
200
100
400
40
+2
-6
2
5
-
-
-
-
-
-
-
-
-
-
-
-
= 12mA, unless otherwise noted. See
TYP
22.0
305
388
570
705
890
900
990
680
150
450
140
350
8.6
0.8
2.0
3.0
A
51
10
50
10
-
-
-
-
-
-
-
= +25°C. EN1/2 = H,
MAX
1000
24.0
26.5
1.05
17.0
345
435
630
775
980
800
200
500
0.4
3.0
20
60
14
10
27
+6
-2
-
-
-
-
-
-
August 10, 2007
UNITS
kHz
kHz
mA
mA
mA
mA
mA
mA
mA
mV
mV
mV
mV
mA
mA
mA
mA
ms
ms
kΩ
FN6486.1
μA
μs
%
%
%
V
V
V