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TPIC6A595NE Datasheet(PDF) 8 Page - Texas Instruments |
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TPIC6A595NE Datasheet(HTML) 8 Page - Texas Instruments |
8 / 12 page TPIC6A595 POWER LOGIC 8-BIT SHIFT REGISTER SLIS005A – APRIL 1993 – REVISED JANUARY 1995 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION OUTPUT CURRENT vs TIME FOR INCREASING LOAD RESISTANCE Region 1 Region 2 t1 t2 First output current pulses after turn-on in chopping mode with resistive load. 0 1 1.5 0 t1 ≈ 40 µs t2 ≈ 2.5 ms Time Time IOK (see Notes A and B) REGION 1 CURRENT WAVEFORM IOK t2 t1 t1 1.25 0.75 0.5 0.25 NOTES: A. Figure 3 illustrates the output current characteristics of the device energizing a load having initially low, increasing resistance, e.g., an incandescent lamp. In region 1, chopping occurs and the peak current is limited to IOK. In region 2, output current is continuous. The same characteristics occur in reverse order when the device energizes a load having an initially high, decreasing resistance. B. Region 1 duty cycle is approximately 2%. Figure 3. Chopping-Mode Characteristics 0.9 0.6 0.3 0 – 50 – 25 0 25 50 75 1.2 OUTPUT CURRENT LIMIT vs CASE TEMPERATURE 100 TC – Case Temperature – °C 1.5 125 150 VCC = 5.5 V VCC = 4.5 V Figure 4 |
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