MAX13020_12 Datasheet, PDF (5/16 Pages) Maxim Integrated Products – ±60V Fault-Protected LIN Transceivers

MAX13020/MAX13021
±60V Fault-Protected LIN Transceivers
TIMING CHARACTERISTICS
(V_BAT = +5V to +38V, T_A = -40°C to +125°C, unless otherwise noted. Typical values are at V_BAT = +12V and T_A = +25°C. Positive
currents flow into the device.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
V_BAT = +7V to +18V, V_th(REC)(MAX) =
LIN Duty Factor 1
D1 = t_{BUS(REC)(MAX)}/(2 x t_BIT)
D1
0.744 x V_BAT,
V_th(DOM)(MAX) = 0.581 x V_BAT,
0.396
—
t_BIT = 50µs (Figure 4, Note 2)
LIN Duty Factor 2
D2 = t_{BUS(REC)(MAX)}/(2 x t_BIT)
V_BAT = +8V to +18V,
D2
V_th(REC)(MIN) = 0.422 x V_BAT,
V_th(DOM)(MIN) = 0.284 x V_BAT,
t_BIT = 50µs (Figure 4, Note 2)
0.581
—
V_BAT = +7V to +18V,
LIN Duty Factor 3
D3 = t_{BUS(REC)(MAX)}/(2 x t_BIT)
D3
V_th(REC)(MAX) = 0.778 x V_BAT,
V_th(DOM)(MAX) = 0.616 x V_BAT,
0.417
—
t_BIT = 96µs (Figure 4, Note 2)
LIN Duty Factor 4
D4 = t_{BUS(REC)(MAX)}/(2 x t_BIT)
V_th(REC)(MIN) = 0.389 x V_BAT,
D4
V_th(DOM)(MIN) = 0.251 x V_BAT,
V_BAT = +8V to +18V,
t_BIT = 96µs (Figure 4, Note 2)
0.590
—
Propagation Delay of Receiving
Node
t_p(RX)
V_BAT = +7V to +18V,
C_RXD = 20pF (Figure 4)
6
µs
Receiver Propagation Delay
Symmetry
Rising edge with respect to falling edge,
t_p(RX)(SYM) VBAT = +7V to +18V,
-2
C_RXD = 20pF, R_RXD = 1kΩ
+2
µs
Continuously Dominant-Clamped
LIN Bus Detection Time
t_{LIN(DOM)(DET)}
Normal/low slope mode (MAX13021),
V_LIN = V_GND
40
80
160
ms
Continuously Dominant-Clamped
LIN Bus Recovery Time
t_{LIN(DOM)(REC)}
Normal/low slope mode (MAX13021),
V_LIN = V_GND
0.5
1
2
ms
Dominant Time for Wake-Up of
the LIN Transceiver
t_BUS
Sleep mode (Figure 3)
30
70
150
µs
TXD Permanent Dominant
Disable Time
t_{TXD(DOM)(DIS)}
Normal/low slope mode,
V_TXD = V_GND
20
80
ms
Dominant Time for Wake-Up
Through NWAKE
t_NWAKE
Sleep mode
7
20
50
µs
Maxim Integrated
5