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ISL32478EIBZ 数据表(PDF) 9 Page - Intersil Corporation |
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ISL32478EIBZ 数据表(HTML) 9 Page - Intersil Corporation |
9 / 19 page ISL32470E, ISL32472E, ISL32475E, ISL32478E 9 FN7784.0 January 21, 2011 Time to Shutdown tSHDN (Note 11) Full 60 160 600 ns Receiver Enable from Shutdown to Output High tZH(SHDN) RL = 1kΩ, CL = 15pF, SW = GND (Figure 8), (Notes 11, 13) Full - - 2000 ns Receiver Enable from Shutdown to Output Low tZL(SHDN) RL = 1kΩ, CL = 15pF, SW = VCC (Figure 8), (Notes 11, 13) Full - - 2000 ns NOTES: 6. 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. 7. Supply current specification is valid for loaded drivers when DE = 0V. 8. Applies to peak current. See “Typical Performance Curves” beginning on page 13 for more information. 9. Keep RE = 0 to prevent the device from entering SHDN. 10. The RE signal high time must be short enough (typically <100ns) to prevent the device from entering SHDN. 11. Transceivers 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 13. 12. Keep RE = VCC, and set the DE signal low time >600ns to ensure that the device enters SHDN. 13. Set the RE signal high time >600ns to ensure that the device enters SHDN. 14. Compliance to data sheet limits is assured by one or more methods: production test, characterization and/or design. 15. Tested according to TIA/EIA-485-A, Section 4.2.6 (±80V for 15µs at a 1% duty cycle). 16. See “Caution” statement below the “Recommended Operating Conditions” section on page 5. Test Circuits and Waveforms FIGURE 3A. VOD AND VOC FIGURE 3B. VOD AND VOC WITH COMMON MODE LOAD FIGURE 3. DC DRIVER TEST CIRCUITS Electrical Specifications Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are VCC = 5V, TA = +25°C (Note 6). Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) PARAMETER SYMBOL TEST CONDITIONS TEMP (°C) MIN (Note 14) TYP MAX (Note 14) UNITS D DE DI VCC VOD VOC RL/2 RL/2 Z Y D DE DI VCC VOD 375Ω 375Ω Z Y VCM RL/2 RL/2 VOC |
类似零件编号 - ISL32478EIBZ |
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类似说明 - ISL32478EIBZ |
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