ISL6422 INTERSIL [Intersil Corporation], ISL6422 Datasheet - Page 6

• Manufacturer Part Number: ISL6422
• Description: Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs
• Manufacturer: INTERSIL [Intersil Corporation]

Electrical Specifications
Dynamic Output Current Limiting
(Note 8)
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 Voltage
Output Under Voltage
(Asserted high during Softstart)
Output Over Voltage
(Asserted high during softstart)
PARAMETER
6
V
VTOP1 = VTOP2 = L, ENT1 = ENT2 = L, DCL = L, DSQIN1 = DSQIN2 = L, I
noted. See “ISL6422 Software Description” on page 12 for I
CC
= 12V, T
SYMBOL
Vtdout_L
Itdout_H
I
dc
OBKTH
V
TOFF
V
V
I
I
T
Vtdin
Ftdin
I
I
I
TON
I
f
Zdet
MAX
MAX
OBK
OBK
OBK
CAB
tone
RXth
TXth
tone
r
tone
, T
A
f
= -20°C to +85°C, unless otherwise noted. Typical values are at T
DCL = 0, ISEL1H and ISEL2H = 0,
ISEL1L and ISEL2L = 0,
ISEL1R and ISEL2R = 0
DCL = 0, ISEL1H and ISEL2H = 0,
ISEL1L and ISEL2L = 0,
ISEL1R and ISEL2R = 1
DCL = 0, ISEL1H and ISEL2H = 0,
ISEL1L and ISEL2L = 1,
ISEL1R and ISEL2R = 1
DCL = 0, ISEL1H and ISEL2H = 1,
ISEL1L and ISEL2L = 0,
ISEL1R and ISEL2R = 1
DCL = 0, ISEL1H and ISEL2H = 1,
ISEL1L and ISEL2L = 1,
ISEL1R and ISEL2R = 1
DCL = L, Output Shorted (Note 8)
DCL = 1 (Note 8)
EN1 and EN2 = 1;
ENT1 and ENT2 = H
ENT1 and ENT2 = H, I
ENT1 and ENT2 = H
ENT1 and ENT2 = H
Tone Present, Iload = 3mA
Tone absent, Vo = 6V
TXT1 and TXT2 = L
TXT1 and TXT2 = H
I
EN1 and EN2 = 0; V
EN1 and EN2 = 0; V
EN1 and EN2 = 1; V
EN1 and EN2 = 0
OUVF1/2 bit is asserted high, Measured from
the typ. output set value
OUVF1/2 bit is asserted high, Measured from
the typ. output set value
OUT
= 750mA
ISL6422
TEST CONDITIONS
OBK
OBK
OFAULT
OUT
= 27V
= 28V
= 5mA
= 19V (Note 7)
2
C access to the system. (Continued)
20.0
17.5
MIN
270
350
515
635
800
500
200
100
400
40
+2
-6
2
5
OUT
TYP
22.0
15.0
305
388
570
705
890
900
990
680
150
450
125
8.6
0.8
2.0
A
20
10
50
10
= 12mA, unless otherwise
= +25°C. EN1 = EN2 = H,
MAX
1000
24.0
26.5
17.0
345
422
630
775
980
800
200
500
0.4
1.0
3.0
20
60
14
10
27
+6
2
April 10, 2007
UNITS
kHz
kHz
mA
mA
mA
mA
mA
mA
mA
mV
mV
mV
mV
mA
mA
mA
ms
ms
kΩ
FN9190.1
μA
μs
%
%
%
V
V
V