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ISL6423B Datasheet(PDF) 6 Page - Intersil Corporation |
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ISL6423B Datasheet(HTML) 6 Page - Intersil Corporation |
6 / 16 page 6 FN6412.1 April 10, 2007 TONE OSCILLATOR Tone Frequency ftone ENT = H 20.0 22.0 24.0 kHz Tone Amplitude Vtone ENT = H, IO = 5mA 500 680 800 mV Tone Duty Cycle dctone ENT = H, 40 50 60 % Tone Rise or Fall Time Tr, Tf ENT = H, 5 10 14 μs TONE DECODER Input Amplitude Vtdin 200 - 1000 mV Frequency Capture Range Ftdin 17.5 - 26.5 kHz Input Impedance Zdet - 8.6 - k Ω Detector Output Voltage Vtdout_L Tone Present, ILOAD = 3mA - - 0.4 V Detector Output Leakage Itdout_H Tone absent, VO = 6V - - 10 μA Tone Decoder Rx Threshold VRXth TXT = L and TTH = 0 (Note 9) 100 150 200 mV Tone Decoder Tx Threshold VTXth TXT = H and TTH = 0 (Note 9) 400 450 500 mV LINEAR REGULATOR Drop-out Voltage IOUT = 750mA - 0.8 1.05 V Output Backward Leakage Current IBKLK EN = 0; VOBK = 27V - 2.0 3.0 mA Output Backward Leakage Current IBKLK EN = 0; VOBK = 28V - 3.0 17 mA Output Backward Current Threshold IBKTH EN = 1; VOFAULT = 19V (Note 7) - 140 - mA Output Backward Current Limit IBKLM EN = 1; VOFAULT = 19V (Note 7) - 350 - mA Output Backward Voltage VOBK EN = 0 - - 27 V Output Under Voltage (Asserted high during soft-start) OUVF bit is asserted high, Measured from the typ. output set value -6 - -2 % Output Over Voltage (Asserted high during soft-start) OUVF bit is asserted high, Measured from the typ. output set value +2 - +6 % TXT, EXTM, SELVTOP AND ADDR 0/1 INPUT PINs (Note 8) Asserted LOW -- 0.8 V Asserted HIGH 1.7 - - V Input Current -25- μA CURRENT SENSE (CS pin) Input Bias Current IBIAS - 700 - nA Overcurrent Threshold VCS Static current mode, DCL = H 325 450 500 mV ERROR AMPLIFIER Open Loop Voltage Gain AOL -93- dB Gain Bandwidth Product GBP -14- MHz PWM Maximum Duty Cycle 90 93 - % Minimum Pulse Width -20- ns Electrical Specifications VCC = 12V, TA = -20°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C. EN = H, VTOP VBOT = L, ENT = L, DCL = L, IOUT = 12mA, unless otherwise noted. See software description section for I 2C access to the system. (Continued) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS |
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Similar Description - ISL6423B |
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