Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF HTML

ISL6421A Datasheet(PDF) 5 Page - Intersil Corporation

Part No. ISL6421A
Description  Single Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-top Box Designs
Download  12 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
Logo 

ISL6421A Datasheet(HTML) 5 Page - Intersil Corporation

 
Zoom Inzoom in Zoom Outzoom out
 5 / 12 page
background image
5
FN9167.3
March 9, 2006
LINEAR REGULATOR
Drop-out Voltage
Iout = 450mA (Note 5)
-
1.2
-
V
DSQIN PIN
DSQIN pin logic Low
-
-
1.5V
V
DSQIN pin Logic HIGH
3.5
-
-
V
DSQIN pin Input Current
-1-
µA
CURRENT SENSE
Input Bias Current
IBIAS
-
700
-
nA
Overcurrent Threshold
Static current mode, DCL = H
325
400
500
mV
ERROR AMPLIFIER
Open Loop Voltage Gain
AOL
(Note 5)
70
88
-
dB
Gain Bandwidth Product
GBP
(Note 5)
10
-
-
MHz
PWM
Maximum Duty Cycle
90
93
-
%
Minimum Pulse Width
(Note 5)
-
20
-
ns
OSCILLATOR
Oscillator Frequency
fo
Fixed at (10)(ftone)
200
220
240
kHz
THERMAL PROTECTION
Thermal Shutdown
Temperature Shutdown Threshold
(Note 5)
-
150
-
°C
Temperature Shutdown Hysteresis
(Note 5)
-
20
-
°C
NOTES:
3. Internal digital soft-start.
4. Voltage programming signals VSEL and LLC are implemented via the I2C bus.
IO1 = IO2 = 500mA.
5. Guaranteed by design.
Electrical Specifications
VCC = 12V, TA = -20°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C. EN = H, LLC = L,
ENT = L, DCL = L, DSQIN = L, Iout = 12mA, unless otherwise noted. See software description section for I2C
access to the system. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Functional Pin Description
SYMBOL
FUNCTION
SDA
Bidirectional data from/to I2C bus.
SCL
Clock from I2C bus.
VSW
Input of the linear post-regulator.
PGND
Dedicated ground for the output gate driver of the PWM.
CS
Current sense input; connect Rsc at this pin for desired overcurrent value for the PWM.
SGND
Small signal ground for the IC.
AGND
Analog ground for the IC.
TCAP
Capacitor for setting rise and fall time of the output of the LNB. Use a capacitor value of 1µF or higher.
BYPASS
Bypass capacitor for internal 5V.
DSQIN
When HIGH this pin enables the internal 22kHz modulation for the LNB, Use this pin for tone enable function for the
LNB.
ISL6421A


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn