Datasheet
TPIC1021A-Q1
SLIS117A – AUGUST 2007 – REVISED JUNE 2009 ..........................................................................................................................................................
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ELECTRICAL CHARACTERISTICS (continued)
V
SUP
= 7 V to 27 V, T
A
= – 40 ° C to 125 ° C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
AC CHARACTERISTICS
TH
REC(max)
= 0.744 × V
SUP
,
TH
DOM(max)
= 0.581 × V
SUP
,
V
SUP
= 7 V to 18 V,
D1 Duty cycle 1
(4)
0.396
t
BIT
= 50 µ s (20 kbps),
D1 = t
Bus_rec(min)
/ (2 × t
BIT
).
See Figure 5
TH
REC(min)
= 0.422 × V
SUP
,
TH
DOM(min)
= 0.284 × V
SUP
,
V
SUP
= 7.6 V to 18 V,
D2 Duty cycle 2
(4)
0.581
t
BIT
= 50 µ s (20 kbps),
D2 = t
Bus_rec(max)
/ (2 × t
BIT
).
See Figure 5
TH
REC(max)
= 0.778 × V
SUP
,
TH
DOM(max)
= 0.616 × V
SUP
,
V
SUP
= 7 V to 18 V,
D3 Duty cycle 3
(4)
0.417
t
BIT
= 96 µ s (10.4 kbps),
D3 = t
Bus_rec(min)
/ (2 × t
BIT
).
See Figure 5
TH
REC(min)
= 0.389 × V
SUP
,
TH
DOM(min)
= 0.251 × V
SUP
,
V
SUP
= 7.6 V to 18 V,
D4 Duty cycle 4
(4)
0.59
t
BIT
= 96 µ s (10.4 kbps),
D4 = t
Bus_rec(max)
/ (2 × t
BIT
).
See Figure 5
R
RXD
= 2.4 k Ω , C
RXD
= 20 pF
Receiver rising propagation
t
rx_pdr
See Figure 6 6
delay time
See Figure 7
R
RXD
= 2.4 k Ω , C
RXD
= 20 pF
Receiver falling propagation
t
rx_pdf
See Figure 6 6
delay time
See Figure 7
rising edge with respect to falling edge
(t
rx_sym
= t
rx_pdf
- t
rx_pdr
)
Symmetry of receiver µ s
t
rx_sym
R
RXD
= 2.4 k Ω , C
RXD
= 20 pF – 2 2
propagation delay time
See Figure 6
See Figure 7
NWake filter time for local
t
NWake
See Figure 4 25 50 150
wake-up
LIN wake-up filter time
t
LINBUS
(dominant time for wake-up See Figure 3 25 50 150
via LIN bus)
t
DST
Dominant state timeout
(5)
5.5 20 ms
t
go_to_operate
See Figure 2 to Figure 3 0.5 1 µ s
(4) Duty cycles: LIN driver bus load conditions (C
LINBUS
, R
LINBUS
): Load1 = 1 nF, 1 k Ω ; Load2 = 10 nF, 500 Ω . Duty cycles 3 and 4 are
defined for 10.4-kbps operation. The TPIC1021A also meets these lower data rate requirements, while it is capable of the higher speed
20-kbps operation as specified by Duty cycles 1 and 2. SAEJ2602 derives propagation delay equations from the LIN 2.0 duty cycle
definitions, for details see the SAEJ2602 specification.
(5) Dominant state timeout limits the minimum data rate to 2.4 kbps.
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