32475EIBZ 查看數據表（PDF） - Renesas Electronics

零件编号

产品描述 (功能)

生产厂家

32475EIBZ

Fault Protected, Extended Common-Mode Range, RS-485/RS-422 Transceivers with ±16.5kV ESD

Renesas Electronics 

ISL32470E, ISL32472E, ISL32475E, ISL32478E

Electrical Specifications Test Conditions: VCC = 4.5V to 5.5V; unless otherwise specified. Typical values are VCC = 5V, TA = +25°C

(Note 8). Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

TEMP

MIN

MAX

(°C) (Note 16) TYP (Note 16) UNIT

Time to Shutdown

tSHDN (Note 13)

Full

60

160

600

ns

Receiver Enable from Shutdown to tZH(SHDN) RL = 1kΩ, CL = 15pF, SW = GND (Figure 10), Full

-

Output High

(Notes 13, 15)

-

2000

ns

Receiver Enable from Shutdown to tZL(SHDN) RL = 1kΩ, CL = 15pF, SW = VCC (Figure 10), Full

-

Output Low

(Notes 13, 15)

-

2000

ns

NOTES:

8. 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.

9. Supply current specification is valid for loaded drivers when DE = 0V.

10. Applies to peak current. See “Typical Performance Curves” beginning on page 5 for more information.

11. Keep RE = 0 to prevent the device from entering shutdown.

12. The RE signal high time must be short enough (typically <100ns) to prevent the device from entering shutdown.

13. 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 ensured not to enter

shutdown. If the inputs are in this state for at least 600ns, the parts are ensured to enter shutdown. See “Low Power Shutdown Mode” on page 17.

14. Keep RE = VCC and set the DE signal low time >600ns to ensure that the device enters shutdown.

15. Set the RE signal high time >600ns to ensure that the device enters shutdown.

16. Compliance to datasheet limits is assured by one or more methods: production test, characterization, and/or design.

17. Tested according to TIA/EIA-485-A, Section 4.2.6 (±80V for 15µs at a 1% duty cycle).

18. See the Caution statement in “Absolute Maximum Ratings” on page 5.

Test Circuits and Waveforms

VCC DE

DI

Z

D

Y

VOD

RL/2

RL/2 VOC

VCC DE

DI

Z

D

Y

RL/2

VOD

VOC

RL/2

375Ω

VCM

375Ω

FIGURE 5A. VOD AND VOC

FIGURE 5B. VOD AND VOC WITH COMMON-MODE LOAD

FIGURE 5. DC DRIVER TEST CIRCUITS

FN7784 Rev 2.00

Feb 14, 2019

Page 9 of 21

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