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ISL31493EIUZ Datasheet(PDF) 11 Page - Intersil Corporation |
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ISL31493EIUZ Datasheet(HTML) 11 Page - Intersil Corporation |
11 / 27 page ISL31490E, ISL31491E, ISL31492E, ISL31493E, ISL31495E, ISL31496E, 11 FN7637.0 June 17, 2010 Receiver Disable from Output Low tLZ RL = 1kΩ, CL = 15pF, SW = VCC (Figure 6) Full - - 50 ns Receiver Disable from Output High tHZ RL = 1kΩ, CL = 15pF, SW = GND (Figure 6) Full - - 50 ns Time to Shutdown tSHDN (Note 15) Full 60 160 600 ns Receiver Enable from Shutdown to Output High tZH(SHDN) RL = 1kΩ, CL = 15pF, SW = GND (Figure 6), (Notes 15, 17) Full - - 2000 ns Receiver Enable from Shutdown to Output Low tZL(SHDN) RL = 1kΩ, CL = 15pF, SW = VCC (Figure 6), (Notes 15, 17) Full - - 2000 ns NOTES: 10. All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified. 11. Supply current specification is valid for loaded drivers when DE = 0V. 12. Applies to peak current. See “Typical Performance Curves” beginning on page 16 for more information. 13. Keep RE = 0 to prevent the device from entering SHDN. 14. The RE signal high time must be short enough (typically <100ns) to prevent the device from entering SHDN. 15. Transceivers (except on the ISL31491E) are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less than 60ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are guaranteed to have entered shutdown. See “Low Power Shutdown Mode” on page 16. 16. Keep RE = VCC, and set the DE signal low time >600ns to ensure that the device enters SHDN. 17. Set the RE signal high time >600ns to ensure that the device enters SHDN. 18. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. 19. Tested according to TIA/EIA-485-A, Section 4.2.6 (±80V for 15μs at a 1% duty cycle). 20. Does not apply to the ISL31491E. 21. See “Caution” statement below the “Recommended Operating Conditions” section on page 6. Test Circuits and Waveforms FIGURE 1A. VOD AND VOC FIGURE 1B. VOD AND VOC WITH COMMON MODE LOAD FIGURE 1. DC DRIVER TEST CIRCUITS Electrical Specifications Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = +25°C (Note 10). Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) PARAMETER SYMBOL TEST CONDITIONS TEMP (°C) MIN (Note 18) TYP MAX (Note 18) UNITS D DE DI VCC VOD VOC RL/2 RL/2 Z Y D DE DI VOD 375Ω 375Ω Z Y VCM VCC RL/2 RL/2 VOC |
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