ISL6421A_06 INTERSIL [Intersil Corporation], ISL6421A_06 Datasheet
ISL6421A_06
Related parts for ISL6421A_06
ISL6421A_06 Summary of contents
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Data Sheet Single Output LNB Supply and Control 2 Voltage Regulator with I C Interface for Advanced Satellite Set-top Box Designs The ISL6421A is a highly integrated solution for providing power and control signals from advanced satellite set-top box ...
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Block Diagram OVERCURRENT COUNTER PROTECTION LOGIC SCHEME 1 PWM LOGIC GATE Q PGND ILIM CS AMP CS COMPENSATION COMP FB VSW VOUT ON CHIP VCC LINEAR UVLO SGND POR SOFT-START INT 5V SOFT-START EN SEL18V OLF DCL OC CLK S ...
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Typical Application Schematic NOTE: SGND and PGND to be shorted as close layout ...
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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 VCC = 12V, T ENT = L, DCL = L, DSQIN = L, Iout = 12mA, unless otherwise noted. See software description section for I access to the system. (Continued) PARAMETER LINEAR REGULATOR Drop-out Voltage DSQIN PIN DSQIN ...
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Functional Pin Description (Continued) SYMBOL VCC Main power supply to the chip. GATE This is the device output of the PWM. This high current driver output is capable of driving the gate of a power FET. This output is actively ...
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Simultaneously the overload flag (OLF) bit of the system register is set to HIGH. After this time has elapsed, the output is resumed for a time T ON the device output will be current limited to between 500mA and ...
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Byte Format Every byte put on the SDA line must be 8-bits long. The number of bytes that can be transmitted per transfer is unrestricted. Each byte has to be followed by an acknowledge bit. Data is transferred with the ...
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Received Data ( Bus Read Mode The ISL6421A can provide to the master a copy of the 2 System Register information via the I The read mode is Master activated by sending the chip address with R/W ...
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Typical Performance Curves 89 88 18. 14. 50.0 150.0 250.0 350.0 I (mA) OUT FIGURE 4. EFFICIENCY vs LOAD CURRENT 22kHz TONE (0.1V/DIV) 10µs/DIV FIGURE 6. 22kHz TONE VOUT (20mV/DIV) VPWM (20mV/DIV) 2µs/DIV ...
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Typical Performance Curves VOUT (1V/DIV) VPWM (1V/DIV) IOUT (0.2A/DIV) 0.5ms/DIV FIGURE 10. DYNAMIC RESPONSE VOUT = 19.0V VGATE (2V/DIV) VDRAIN (10V/DIV) 2µs/DIV FIGURE 12. GATE AND DRAIN WAVEFORMS VOUT = 19.0V 11 ISL6421A (Continued) VOUT (1V/DIV) VPWM (1V/DIV) IOUT (0.2A/DIV) ...
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Quad Flat No-Lead Plastic Package (QFN) Micro Lead Frame Plastic Package (MLFP) All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description ...