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ISL84781IVZ- Datasheet(PDF) 5 Page - Intersil Corporation |
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ISL84781IVZ- Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 12 page 5 FN6095.3 July 31, 2006 Test Circuits and Waveforms Logic input waveform is inverted for switches that have the opposite logic sense. FIGURE 1A. INHIBIT tON/tOFF MEASUREMENT POINTS Repeat test for other switches. CL includes fixture and stray capacitance. FIGURE 1B. INHIBIT tON/tOFF TEST CIRCUIT Logic input waveform is inverted for switches that have the opposite logic sense. FIGURE 1C. ADDRESS tTRANS MEASUREMENT POINTS Repeat test for other switches. CL includes fixture and stray capacitance. FIGURE 1D. ADDRESS tTRANS TEST CIRCUIT FIGURE 1. SWITCHING TIMES FIGURE 2A. Q MEASUREMENT POINTS FIGURE 2B. Q TEST CIRCUIT FIGURE 2. CHARGE INJECTION 50% tr < 5ns tf < 5ns tON V+ 0V tOFF LOGIC INPUT SWITCH OUTPUT 90% 0V 90% VOUT VNO0 V OUT V NOx R L R L R ON () + ------------------------------ = LOGIC INPUT VOUT RL COM NO0 INH 50 Ω 35pF GND NO1-NO7 CL VNO0 ADD2-0 C V+ C 50% tr < 5ns tf < 5ns tTRANS 90% V+ VNO7 0V tTRANS LOGIC INPUT SWITCH OUTPUT 10% VOUT 0V VNO0 V OUT V NOx R L R L R ON () + ------------------------------ = LOGIC INPUT VOUT RL COM NO0 ADD2-0 50 Ω 35pF GND NO1-NO7 CL VNO0 INH C V+ C VOUT ΔVOUT OFF ON OFF Q = ΔVOUT x CL SWITCH OUTPUT LOGIC INPUT V+ 0V CL VOUT RG VG GND COM NOx LOGIC INPUT INH ADD2 V+ C Repeat test for other switches. 1000pF 0 Ω ADD1 ADD0 CHANNEL SELECT ISL84781 |
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