ISL6424 Intersil, ISL6424 Datasheet - Page 6

• Manufacturer Part Number: ISL6424
• Description: Single Output LNB Supply and Control Voltage Regulator
• Manufacturer: Intersil

Electrical Specifications
NOTES:
22kHz TONE SECTION
Tone Frequency
Tone Amplitude
Tone Duty Cycle
Tone Rise or Fall Time
LINEAR REGULATOR
Drop-out Voltage
DSQIN PIN 1&2, SEL18V 1&2 INPUT PINs (Note 11)
Asserted LOW
Asserted HIGH
Input Current
CURRENT SENSE
Input Bias Current
Over Current Threshold
ERROR AMPLIFIER
Open Loop Voltage Gain
Gain Bandwidth Product
PWM
Maximum Duty Cycle
Minimum Pulse Width
OSCILLATOR
Oscillator Frequency
THERMAL SHUTDOWN
Temperature Shutdown Threshold
Temperature Shutdown Hysteresis
4. Internal digital soft-start.
5. VO1 for LNB1, VO2 for LNB2. Voltage programming signals VSEL1, VSEL2, LLC1, and LLC2 are implemented via the I
6. Guaranteed by design.
7. Unused DSQIN 1&2 pins should be connected to GND. SEL18V1&2 pins have 200K internal pulldown resistors.
IO1 = IO2 = 350mA/750mA.
PARAMETER
6
V
LLC1 = LLC2 = L, ENT1 = ENT2 = L, DCL = L, DSQIN1 = DSQIN2 = L, Iout = 12mA, unless otherwise noted.
See software description section for I
CC
= 12V, T
SYMBOL
dc
V
I
T
f
A
GBP
BIAS
tone
tone
r
tone
f
, T
OL
o
A
f
= -20°C to +85°C, unless otherwise noted. Typical values are at T
ENT1/2 = H
ENT1/2 = H
ENT1/2 = H
ENT1/2 = H
Iout = 750mA (Note 6)
Static current mode, DCL = H
(Note 6)
(Note 6)
(Note 6)
Fixed at (10)(f
(Note 6)
(Note 6)
ISL6424
TEST CONDITIONS
tone
2
C access to the system. (Continued)
)
20.0
MIN
500
325
200
1.7
40
70
10
90
5
-
-
-
-
-
-
-
TYP
22.0
680
700
400
220
150
1.2
A
50
88
93
20
20
8
1
www.DataSheet4U.com
-
-
-
= 25°C. EN1 = EN2 = H,
2
C bus.
MAX
24.0
800
500
240
0.8
60
14
-
-
-
-
-
-
-
-
-
-
September 13, 2005
UNITS
MHz
kHz
kHz
mV
mV
FN9175.3
µA
nA
dB
µs
ns
%
%
V
V
V