ISL6423B Intersil Corporation, ISL6423B Datasheet
ISL6423B
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ISL6423B Summary of contents
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... Voltage Regulator with I C Interface for Advanced Satellite Set-Top Box Designs The ISL6423B is a highly integrated voltage regulator and interface IC, specifically designed for supplying power and control signals from advanced satellite set-top box (STB) modules to the low noise blocks (LNBs) of singe antenna ports ...
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... SCL ADDR0 7 22 TDOUT ADDR1 8 21 TDIN BYPASS PGND GATE VSW 12 17 AGND SELVTOP 15 TXT CS 14 ISL6423B (24 LD QFN) TOP VIEW SGND 1 TCAP 2 ADDR0 3 ADDR1 4 BYPASS 5 PGND EXTM 18 SDA 17 SCL 16 TDOUT ...
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Block Diagram OVERCURRENT COUNTER PROTECTION LOGIC SCHEME 1 GATE 7 PGND 6 ILIM1 CS AMP CS 9 TDOUT 15 TONE DECODER TDIN 14 VSW AGND 12 VCC 22 ON CHIP LINEAR SGND 1 UVLO POR SGND 24 ...
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Typical Application Schematic QFN C23 0 R10 56µ TPC6002 Q2 R9 470 L5 15µH R8 C21 0.1 100pF 4.7µ C22 C18 CMS06 56µF 10µ C29 1n C24 ...
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Absolute Maximum Ratings Supply Voltage 8.0V to 18.0V CC Logic Input Voltage Range ...
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Electrical Specifications V = 12V VBOT = L, ENT = L, DCL = L, I access to the system. (Continued) PARAMETER TONE OSCILLATOR Tone Frequency Tone Amplitude Tone Duty Cycle Tone Rise or Fall Time TONE DECODER Input ...
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Electrical Specifications V = 12V VBOT = L, ENT = L, DCL = L, I access to the system. (Continued) PARAMETER OSCILLATOR Oscillator Frequency Thermal Shutdown Temperature Shutdown Threshold Temperature Shutdown Hysteresis OTFI FLT (released) FLT (asserted) NOTES: ...
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Typical Performance Curves 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0. TEMPERATURE (°C) FIGURE 2. OUTPUT CURRENT DERATING (EPTSSOP) Functional Pin Description SYMBOL SDA Bidirectional data from/ SCL Clock from I C bus. VSW ...
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... Functional Description The ISL6423B single output voltage regulator makes an ideal choice for advanced satellite set-top box and personal video recorder applications. The device utilizes built-in DC/DC step up converters that, operates from a single supply source ranging from 8V to 14V, and generates the voltage needed to enable the linear post-regulator to work with a minimum of dissipated power ...
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... SCL are bidirectional lines, connected to a positive supply voltage via a pull up resistor. (Pull up resistors to positive supply voltage must be externally connected). When the bus is free, both lines are HIGH. The output stages of ISL6423B will have an open drain/open collector in order to perform the wired-AND function. Data on the I in the standard-mode 400Kbps in the fast-mode. The level of logic “ ...
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... SDA line remains at the HIGH level during the ninth clock pulse time. In this case, the master transmitter can generate the STOP information in order to abort the transfer. The ISL6423B will not generate the acknowledge if the POWER OK signal from the UVLO is LOW. SCL ...
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SR1H SR1M SR1L OTF CABF ...
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... NOTE: X indicates “Read Only” and is a “Don’t Care” for the Write mode. 2 Received Data ( bus READ MODE The ISL6423B can provide to the master a copy of the 2 system register information via the I C bus in read mode. The read mode is Master activated by sending the chip address with R/W bit set the following Master generated clock bits, the ISL6423B issues a byte on the SDA data bus line (MSB transmitted first) ...
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I C Bit Description BIT NAME DESCRIPTION EN ENable Output for channels 1 and 2 VTOP Voltage TOP select i.e. 18V, 19V for channels 1 and 2 VBOT Voltage BOTtom select i.e. 13V, 14V for channels 1 and 2 ...
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Package Outline Drawing L24.4x4D 24 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 2, 10/06 4.00 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 15 4X ...
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... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...