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IMP560ESA Datasheet(PDF) 6 Page - IMP, Inc |
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IMP560ESA Datasheet(HTML) 6 Page - IMP, Inc |
6 / 8 page IMP560 IMP560 6 408-432-9100/www.impweb.com © 2000 IMP, Inc. Enable/Disable Operation Figure 3 shows the IMP560 can be enabled via a logic gate that con- nects RSW to VDD, and disabled by connecting it to ground. RELmay be connected either to VDD or to the gate. RSW Connection IMP560 State VDD Enabled Ground Disabled Figure 3. Enable/Disable Operation + – ON = VDD OFF = 0V VDD RSW-OSC CS LX REL-OSC VA VB GND 8 7 6 5 1 2 3 4 IMP560 REL CMOS Gate RSW L1 VIN 0.1 µF2 15V 1N4148 EL lamp Note: 1. Murata part # LQH4N561K04 (DC resistance <14.5 Ω) 2. Larger values may be required depending upon supply impedance. 560_11.eps 0.1 µF 100V Enable/Disable Table Dual Supply Operation with 1.5V Battery The IMP560 can also be operate from a single battery cell when a regulated voltage higher than 2.0V is also available. The dual supply configuration, shown in Figure 4, uses the regulated voltage to operate the IMP560 while the energy for the high- voltage boost circuit comes from the battery. The current to run the internal logic is typically 420 µA. The circuit of Figure 4 can also be used with batteries that exceed 6.0V as long as VDD does not exceed 6.5V. + – VDD RSW-OSC CS LX REL-OSC VA VB GND 8 7 6 5 1 2 3 4 IMP560 REL Regulated Voltage (2.0V to 6.5V) RSW L Battery Voltage VIN 0.1 µF* 1N4148 EL lamp 560_12.eps 0.1 µF 100V CS * Larger values may be required depending upon supply impedance ON = VDD OFF = 0V Figure 4. Dual Supply Operation with High Battery Voltages |
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