MAX3440EASA datasheet(5/20 Pages) MAXIM

Part #	MAX3440EASA

Description	짹15kV ESD-Protected, 짹60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 Transceivers

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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5 / 20 page

±15kV ESD-Protected, ±60V Fault-Protected,

10Mbps, Fail-Safe RS-485/J1708 Transceivers

_______________________________________________________________________________________

5

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Driver Propagation Delay

tPLHA,

tPLHB

Figure 3, RL = 27

Ω, CL = 50pF

60

ns

Driver Differential Propagation Delay

tDPLH,

tDPHL

Figure 4, RL = 54

Ω, CL = 50pF

60

ns

Driver Differential Output

Transition Time

tLH,tHL

Figure 4, RL = 54

Ω, CL = 50pF

25

ns

Driver Output Skew

tSKEWAB,

tSKEWBA

RL = 54

Ω, CL = 50pF,

tSKEWAB = |tPLHA - tPHLB|,

tSKEWBA = |tPLHB - tPHLA|

10

ns

Differential Driver Output Skew

tDSKEW

RL = 54

Ω, CL = 50pF,

tDSKEW = |tDPLH - tDPHL|

10

ns

Maximum Data Rate

fMAX

10

Mbps

Driver Enable Time to Output High

tPDZH

Figure 5, RL = 500

Ω, CL = 50pF

1200

ns

Driver Disable Time from Output High

tPDHZ

Figure 5, RL = 500

Ω, CL = 50pF

1200

ns

Driver Enable Time from Shutdown to

Output High

tPDHS

Figure 5, RL = 500

Ω, CL = 50pF (MAX3443E)

4.2

µs

Driver Enable Time to Output Low

tPDZL

Figure 6, RL = 500

Ω, CL = 50pF

1200

ns

Driver Disable Time from Output Low

tPDLZ

Figure 6, RL = 500

Ω, CL = 50pF

1200

ns

Driver Enable Time from Shutdown to

Output Low

tPDLS

Figure 6, RL = 500

Ω, CL = 50pF (MAX3443E)

4.2

µs

Driver Time to Shutdown

tSHDN

Figure 6, RL = 500

Ω, CL = 50pF (MAX3443E)

800

ns

Receiver Propagation Delay

tRPLH,

tRPHL

Figure 7, CL = 20pF, VID = 2V, VCM = 0

85

ns

Receiver Output Skew

tRSKEW

CL = 20pF, tRSKEW = |tRPLH - tRPHL|15

ns

Receiver Enable Time to Output High

tRPZH

Figure 8, RL = 1k

Ω, CL = 20pF

400

ns

Receiver Disable Time from Output HightRPHZ

Figure 8, RL = 1k

Ω, CL = 20pF

400

ns

Receiver Wake Time from Shutdown

tRPWAKE

Figure 8, RL = 1k

Ω, CL= 20pF (MAX3443E)

4.2

µs

Receiver Enable Wake Time from

Shutdown

tRPSH

Figure 8, RL = 1k

Ω, CL = 20pF

400

ns

Receiver Disable Time from Output Low

tRPLZ

Figure 8, RL = 1k

Ω, CL= 20pF

400

ns

Receiver Time to Shutdown

tSHDN

RL = 500

Ω, CL= 50pF (MAX3443E)

800

ns

SWITCHING CHARACTERISTICS (MAX3441E/MAX3443E)

(VCC = +4.75V to +5.25V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.)

Note 2:

∆VOD and ∆VOC are the changes in VOD and VOC, respectively, when the DI input changes state.

Note 3: The short-circuit output current applies to peak current just before foldback current limiting; the short-circuit foldback output

current applies during current limiting to allow a recovery from bus contention.

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