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HT18LG-G Datasheet(PDF) 4 Page - Supertex, Inc |
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HT18LG-G Datasheet(HTML) 4 Page - Supertex, Inc |
4 / 4 page 4 Doc.# DSFP-HT18_HT19 A111006 HT18/HT19 (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to http://www.supertex.com/packaging.html.) 8-Lead SOIC (Narrow Body) LG Package Outline 45° 5° - 15° (4 PLCS) 4.90 ± 0.10 1.27BSC 6.00 ± 0.20 3.90 ± 0.10 Notes: 1. All dimensions in millimeters. Angles in degrees. 2. If the corner is not chamfered, then a Pin 1 identifier must be located within the area indicated. Note 2 1.75 MAX 0.10 - 0.25 0.31 - 0.51 1.25 MIN 0.25 - 0.50 0° - 8° 0.40 - 1.27 0.17 - 0.25 Top View Side View End View Note 2 1 8 Pin Description Pin Name Description 1 TPG Positive input side of a telephone line, typically Tip side. 2 HKS Hookswitch input. Connect HKS to TPG to turn on the hook switch. Internally pulled low with a high value resistor. 3 GND Device ground. Negative side of a telephone line, typically Ring side. 4 NC No Connect. Open Circuit. No internal connections to the device. 5 LS Line switch input. Input logic high turns on the hook switch. Internally pulled low with a high value resistor. 6DP For HT18. Dial pulse input. Input logic high turns off the hook switch. Used for pulse dialing. Internally pulled low with a high value resistor. 6DP For HT19. Dial pulse input. Input logic low turns off the hook switch. Used for pulse dialing. Internally pulled high with a high value resistor. 7 CS Current sense input. An external resistor connected between CS and TP sets the current limit. 8TP Positive output side of a telephone line. Zener protection to prevent this output from rising above 18V is required. |
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