ISL6423B Intersil Corporation, ISL6423B Datasheet - Page 12
ISL6423B
Manufacturer Part Number
ISL6423B
Description
Single Output LNB Supply and Control Voltage Regulator
Manufacturer
Intersil Corporation
Datasheet
1.ISL6423B.pdf
(16 pages)
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NOTE: X indicates “Read Only” and is a “Don’t Care” for the Write mode.
NOTE: X indicates “Read Only” and is a “Don’t Care” for the Write mode.
SR1H
SR2H
SR3H
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SR1M
SR2M
SR3M
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
SR1L
SR2L
SR3L
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
OTF
ENT
DCL
12
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
0
1
0
0
0
0
1
0
VSPEN
CABF
MSEL
TABLE 9. COMMAND REGISTER SR3 CONFIGURATION
X
X
X
X
X
X
X
0
1
X
X
X
0
1
0
X
X
X
X
X
X
X
X
X
0
1
TABLE 7. STATUS REGISTER SR1 CONFIGURATION
TABLE 8. TONE REGISTER SR2 CONFIGURATION
OUVF
TTH
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
X
X
X
X
X
X
ISELH
OLF
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
0
0
1
1
ISELL
BCF
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
1
SR1 is selected
I
I
Iobck ≤ set limit, Normal Operation
Iobck > Dynamic Limiting Mode / Power blocks disabled
V
V
Cable is connected, Io is >20mA
Cable is open, Io <2mA
T
T
SR2 is selected
Int Tone = 22kHz, modulated by EXTM, T
Ext 22k modulated input, T
Int Tone = 22kHz, modulated by ENT bit, T
TXT = 0; Decoder Rx threshold is set at 200mV max
TXT = 0; Decoder Tx threshold is set at 400mV min
SR3 is selected
I
I
I
I
Dynamic current limit NOT selected
Dynamic current limit selected
SELVTOP H/W pin Enabled
SELVTOP H/W pin Disabled
OUT
OUT
OUT
OUT
OUT
OUT
J
J
IN
IN
≤130°C, Normal operation
>150°C, Power blocks disabled
/V
/V
≤ set limit, Normal Operation
> Static/Dynamic Limiting Mode/Power blocks disabled
OUT
OUT
limit threshold = 305mA typ.
limit threshold = 570mA typ.
limit threshold = 705mA typ.
limit threshold = 890mA typ.
within specified range
is not within specified range
r
FUNCTION
FUNCTION
, T
FUNCTION
f
= 10µs typ
r
, T
r
, T
f
= 10µs typ
f
= 10µs typ
April 10, 2007
FN6412.1