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HC5549CM Datasheet(PDF) 4 Page - Intersil Corporation |
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HC5549CM Datasheet(HTML) 4 Page - Intersil Corporation |
4 / 13 page 4 FN4539.3 DC PARAMETERS Loop Current Limit Programming Range Max Low Battery = -52V, BSEL = 0 15 - 45 mA Loop Current Accuracy IL = 25mA, BSEL = 0 - - ± 10 % Loop Current During Low Power Standby Forward polarity only. 17 - 26 mA Open Circuit Voltage (|Tip - Ring|) BSEL = 0 14 15.5 17 V BSEL = 1 37.5 40 42.5 V Low Power Standby Open Circuit Voltage (Tip - Ring) BSEL = 1 43 45 47 V Ring Trip Programming Current Accuracy - - ± 10 % Ring Trip Comparator Threshold 2.3 2.6 2.9 V Switch Hook Programming Range 5- 15 mA Switch Hook Programming Accuracy -- 10 % Dial Pulse Distortion -1- % Ground Key Threshold -12- mA Thermal Alarm Output IC junction temperature - 175 - °C RELAY DRIVER On Voltage IL = 45 mA - - 0.60 V LOGIC INPUTS (F0, F1, F2, E0, SWC) Input Low Voltage -- 0.8 V Input High Voltage 2.0 - - V Input Low Current VIL = 0.4V -20 - - µA Input High Current VIH = 2.4V - - 5 µA LOGIC OUTPUTS (DET, ALM) Output Low Voltage IOL = 5mA - - 0.4 V Output High Voltage IOH = 100µA2.4 - - V SUPPLY CURRENTS (Supply currents not listed are considered negligible and do not contribute significantly to total power dissipation. All measurements made under open circuit load conditions.) Low Power Standby ICC 2.0 3.7 6.0 mA IBH, BSEL = 1 - 0.375 0.600 mA Forward or Reverse (Note 5) ICC 2.5 4.0 6.0 mA IBL, BSEL = 0 - 1.0 2.5 mA Forward ICC 3.5 4.5 8.0 mA IBL, BSEL = 1 - 0.7 2.0 mA IBH, BSEL = 1 - 1.0 2.5 mA Power Denial ICC 0.5 3.0 6.0 mA IBL, BSEL = 1 or 0 - 0.2 0.5 mA Forward Lookback ILL -- 10.0 mA IBL, VBL = -24V - - 25.0 mA Electrical Specifications Unless Otherwise Specified, TA = -40°C to 85°C, VBL = -24V, VBH = -48V, VCC = +5V, AGND = BGND = 0V, loop current limit = 25mA. All AC Parameters are specified at 600 Ω 2-wire terminating impedance over the frequency band of 300Hz to 3.4kHz. Protection resistors = 0 Ω. (Continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS HC5549 |
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