ISO7342-Q1_15 Datasheet, PDF (9/31 Pages) Texas Instruments – ISO734x-Q1 Robust EMC, Low-Power, Quad-Channel Digital Isolators

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ISO7340-Q1, ISO7341-Q1, ISO7342-Q1
SLLSEK5 – JULY 2015
7.11 Switching Characteristics—3.3-V Supply
V_CC1 and V_CC2 at 3.3 V ± 10% (over recommended operating conditions unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
t_PLH, t_PHL
PWD ⁽¹⁾
Propagation delay time
Pulse width distortion |t_PHL – t_PLH|
22
See Figure 13
t_sk(o) ⁽²⁾
Channel-to-channel output skew time
Same-direction Channels
Opposite-direction Channels
t_sk(pp) ⁽³⁾
Part-to-part skew time
t_r
Output signal rise time
t_f
Output signal fall time
See Figure 13
t_PHZ
Disable propagation delay, high-to-high impedance output
t_PLZ
Disable propagation delay, low-to-high impedance output
ISO734xCQDWQ1 and
t_PZH
Enable propagation delay, high impedance- ^{ISO734xCQDWRQ1}
to-high output
ISO734xFCQDWQ1 and _{See Figure 14}
ISO734xFCQDWRQ1
ISO734xCQDWQ1 and
t_PZL
Enable propagation delay, high impedance- ^{ISO734xCQDWRQ1}
to-low output
ISO734xFCQDWQ1 and
ISO734xFCQDWRQ1
t_fs
Fail-safe output delay time from input power loss
See Figure 15
TYP
MAX UNIT
35
66
2.5
3 ns
16
28
2.8
ns
2.1
9
18
9
18
9
18
16 24000^{(4) ns}
16 24000⁽⁴⁾
9
18
9.4
μs
(1) Also known as Pulse Skew.
(2) t_sk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same
direction while driving identical loads.
(3) t_sk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same
direction while operating at identical supply voltages, temperature, input signals and loads.
(4) The enable signal rate should be ≤ 45 Kbps.
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