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TPIC2801 Datasheet(PDF) 9 Page - Texas Instruments |
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TPIC2801 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 13 page TPIC2801 OCTAL INTELLIGENT POWER SWITCH WITH SERIAL INPUT SLIS008 − D3282, AUGUST 1989 − REVISED JUNE 1990 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 2−9 PARAMETER MEASUREMENT INFORMATION GND SO Output CL = 200 pF (see Note A) 10 ns 10 ns td1 tr(SO) 5 V 0 VOL VOL VOH SCLK Input SO Output Waveform 1 (see Note B) SO Output Waveform 2 (see Note B) SCLK tv VOH td1 tv tf(SO) VOLTAGE WAVEFORMS TEST CIRCUIT FOR VALID DATA DELAY TIME td1 AND VALID TIME tv 5 V 0.7 VCC 2.5 V 2.5 V 0.2 VCC 0.7 VCC 0.2 VCC 0.2 VCC 0.7 VCC TPIC2801 Under Test VCC NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the low-to-high transition of SCLK causes the SO output to switch from low to high. Waveform 2 is for an output with internal conditions such that the low-to-high transition of SCLK causes the SO output to switch from high to low. Figure 3. Test Circuit and Voltage Waveforms for Delay Times TPIC2801 Under Test GND Y SIOE RL = 5 Ω Output CL = 20 pF (see Note A) 10 ns 90% 10% 10% 10 ns 50% td2 5 V 0 Von = 5 V IO(CL) = 1.2 A 0 SIOE Input Y-Output Voltage (see Note B) Y-Output Current (see Note B) 11 V 90% 50% Voff = 11 V VOLTAGE WAVEFORMS TEST CIRCUIT FOR UNLATCH DISABLE DELAY TIME td2 (see Notes C and D) 5 V 2.5 V 2.5 V VCC NOTES: A. CL includes probe and jig capacitance. B. Output voltage and current waveforms are for an output with internal conditions such that the low-to-high transition of SIOE causes the output to switch from being off to being on. C. td2 = delay until Y-output current goes off under fault condition. D. Load voltage VS and load resistance RL are selected such that on-state voltage at the Y output under test, Von is greater than the maximum out-of-saturation hold voltage, VTOS. Thus VOL = Von > VTOS(max) = 1.98 V. Figure 4. Test Circuit and Voltage and Current Waveforms for Unlatch Disable Delay |
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