ISL6422 INTERSIL [Intersil Corporation], ISL6422 Datasheet
ISL6422
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ISL6422 Summary of contents
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... Voltage Regulator with I C Interface for Advanced Satellite Set-Top Box Designs The ISL6422 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 two antenna ports ...
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... VSW2 3 36 TCAP2 GATE2 VOUT2 PGND2 5 EXTM2 6 33 TDIN2 SGND 7 32 TDOUT2 FLT 8 31 CPVOUT 30 SDA 9 CPSWOUT ISL6422EVEZ SCL 10 29 CPSWIN ADDR0 11 28 VCC ADDR1 12 27 TDOUT1 EXTM1 13 26 TDIN1 BYP 14 25 VOUT1 PGND1 15 24 AGND GATE1 16 23 TCAP1 ...
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Block Diagram OLF1 OVERCURRENT COUNTER PROTECTION DCL1 LOGIC SCHEME 1 PWM OC1 LOGIC GATE1 12 Q CLK1 S PGND1 11 ILIM1 CS - AMP CS1 ∑ 15 SLOPE COMPENSATION TDOUT1 23 - TONE TXT1 DECODER VREF1 TDIN1 22 VSW1 14 ...
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... EXTM2 VOUT2 2 29 SGND TDIN2 TDOUT2 4 27 FLT CPVOUT 5 26 SDA CPSWOUT SCL CPSWIN 7 ISL6422ER 24 ADDR0 VCC 8 23 ADDR1 TDOUT1 9 22 EXTM1 TDIN1 10 21 BYP VOUT1 0 1uF C8 0 C20 0.22uF CMS06 C14 C15 10uF ...
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... The device junction temperature should be kept below +150°C. Thermal shut-down circuitry turns off the device if junction temperature exceeds +150°C typically. Electrical Specifications V = 12V VTOP1 = VTOP2 = L, ENT1 = ENT2 = L, DCL = L, DSQIN1 = DSQIN2 = L, I noted. See “ISL6422 Software Description” on page 12 for I PARAMETER Operating Supply Voltage Range Standby Supply Current Supply Current UNDERVOLTAGE LOCKOUT Start Threshold ...
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... Electrical Specifications V = 12V VTOP1 = VTOP2 = L, ENT1 = ENT2 = L, DCL = L, DSQIN1 = DSQIN2 = L, I noted. See “ISL6422 Software Description” on page 12 for I PARAMETER Dynamic Output Current Limiting (Note 8) Dynamic Overload Protection Off Time Dynamic Overload Protection On Time Static Output Current Limiting Cable Fault CABF Asserted High ...
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... Electrical Specifications V = 12V VTOP1 = VTOP2 = L, ENT1 = ENT2 = L, DCL = L, DSQIN1 = DSQIN2 = L, I noted. See “ISL6422 Software Description” on page 12 for I PARAMETER TXT1 AND TXT2, EXTM1 AND EXTM2, SELVTOP1 AND SELVTOP2, ADDR0 AND ADDR1 INPUT PINs (Note 8) Asserted LOW Asserted HIGH Input Current ...
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... TAMB (°C) FIGURE 2. OUTPUT CURRENT DERATING 38 LD HTSSOP: I _max vs TAMB OUT NOTE: With both channels in simultaneous operation at rated output ISL6422 22kHz 22kHz 22kHz Internal Tone Tr = 10µs typ Returns to nominal V ~1 period OUT after the last EXTM rising edge T > 55µ ...
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... TDOUT1 and TDOUT2 TDOUT1 and TDOUT2 are the tone detector outputs for channels 1 and 2. TDOUT1 and TDOUT2 are open drain outputs. AGND Analog ground for the IC. 9 ISL6422 FUNCTION 2 C bus bit TTH(1 ,2), when TTH( then TXT(1, 2) will be driven high 2 C register to get the actual cause of the error ...
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... Functional Description The ISL6422 dual output voltage regulator makes an ideal choice for advanced satellite set-top box and personal video recorder applications. Both supply and control voltage outputs for two low-noise blocks (LNBs) are available simultaneously in any output configuration. The device utilizes built-in DC/DC step up converters that, from a single ...
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... When the bus is free, both lines are HIGH. The output stages of ISL6422 will have an open drain/open collector in order to perform the wired-AND function. Data on the I transferred up to 100Kbps 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. 12 ISL6422 The ISL6422 will not generate the acknowledge if the POWER OK signal from the UVLO is LOW. SCL 1 SDA ...
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... When the R/W bit in the chip is set to 0, the main microprocessor can write on the system registers (SR1 X X through SR8) of the ISL6422 via I written by the microprocessor as shown below. The spare bits of registers can be used for other functions. TABLE 11. STATUS REGISTER SR1 CONFIGURATION OLF1 BCF1 X ...
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... NOTE “Don’t Care” for the Write mode. 14 ISL6422 TABLE 13. COMMAND REGISTER SR3 CONFIGURATION SR3 is selected 275mA maximum OUT 350mA maximum OUT ...
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... NOTE “Don’t Care” for the Write mode. 15 ISL6422 TABLE 15. STATUS REGISTER SR5 CONFIGURATION OLF2 BCF2 SR5 is selected OUT OUT ...
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... NOTE “Don’t Care” for the Write mode. 2 Received Data ( bus READ MODE The ISL6422 can provide to the master a copy of the system 2 register information via the I C bus in read mode. The read mode is master-activated by sending the chip address with the R/W bit set the following master-generated clock bits, the ISL6422 issues a byte on the SDA data bus line (MSB transmitted first) ...
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... Over and Under Voltage Fault status bit for channels 1 and 2 OLF1/2 Over Load Fault status bit for channels 1 and 2 BCF1/2 Backward Current Fault Bit for channels 1 and 2 TTH1/2 Tone THreshold is the OR of the signal pin TXT1 or TXT2 17 ISL6422 2 C ADDR0 TABLE 20 ...
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... Package Outline Drawing L40.6x6 40 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 3, 10/06 6.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 18 ISL6422 4X 4.5 36X 0. 40X ± BOTTOM VIEW ± SIDE VIEW ( 36X ...
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... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 19 ISL6422 M38.173B 0.25(0.010) M ...