isl6423 Intersil Corporation, isl6423 Datasheet - Page 6

• Manufacturer Part Number: isl6423
• Description: Single Output Lnb Supply And Control Voltage Regulator With I2c Interface For Advanced Satellite Set-top Box Designs, Diseqc 2.0 Compatible
• Manufacturer: Intersil Corporation

Electrical Specifications
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 Undervoltage
(Asserted high during soft-start)
Output Overvoltage
(Asserted high during soft-start)
TXT, EXTM, SELVTOP AND ADDR 0/1 INPUT PINs (Note 8)
Asserted LOW
Asserted HIGH
Input Current
CURRENT SENSE (CS pin)
Input Bias Current
Overcurrent Threshold
ERROR AMPLIFIER
Open Loop Voltage Gain
Gain Bandwidth Product
PWM
Maximum Duty Cycle
Minimum Pulse Width
OSCILLATOR
Oscillator Frequency
PARAMETER
6
V
VBOT = L, ENT = L, DCL = L, Iout = 12mA, unless otherwise noted. See software description section for I
access to the system. (Continued)
CC
= 12V, T
SYMBOL
Vtdout_L
Itdout_H
I
dc
OBKTH
V
V
V
I
T
Vtdin
Ftdin
I
I
I
f
Zdet
V
A
GBP
BIAS
OBK
OBK
OBK
tone
RXth
TXth
tone
r
tone
f
, T
CS
OL
o
A
f
= -20°C to +85°C, unless otherwise noted. Typical values are at T
ENT = H
ENT = H, I
ENT = H
ENT = H
Tone Present, Iload = 3mA
Tone absent, V
TXT = L & TTH = 0 (Note 9)
TXT = H & TTH = 0 (Note 9)
Iout = 750mA
EN = 0; V
EN = 0; V
EN = 1; V
EN = 0
OUVF bit is asserted high, Measured from
the typical output set value
OUVF bit is asserted high, Measured from
the typical output set value
Static current mode, DCL = H
Fixed at (20)(f
OBK
OBK
OFAULT
ISL6423
O
TEST CONDITIONS
= 5mA
tone
= 27V
= 28V
O
= 6V
)
= 19V (Note 7)
20.0
17.5
MIN
500
200
100
400
325
396
1.7
40
+2
90
-6
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP
22.0
0.80
680
150
450
125
700
450
440
8.6
2.0
A
50
10
15
25
88
14
93
20
-
-
-
-
-
-
-
-
-
= +25°C. EN = H, VTOP
MAX
1000
24.0
26.5
1.05
800
200
500
500
484
0.4
3.0
0.8
60
14
10
17
27
+6
-2
-
-
-
-
-
-
-
-
-
April 10, 2007
UNITS
MHz
kHz
kHz
kHz
mV
mV
mV
mV
mA
mA
mA
mV
kΩ
FN9191.1
μA
μA
nA
dB
μs
ns
%
%
%
%
V
V
V
V
V
2
C