MAX13036
Automotive Contact Monitor
and Level Shifter
4 _______________________________________________________________________________________
TIMING CHARACTERISTICS
(V
L
= +2.7V to +5.5V, BAT = +6V to +26V, SD = V
L
, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
L
= +3.3V,
BAT = +14V, T
A
= +25°C) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
IN0 to DO0 Propagation Delay V
BAT
= 6V 22 35
IN1 to DO1 Propagation Delay
t
PROP
V
BAT
= +14V 22
µs
CLK Frequency f
CLK
Input rise/fall time < 2ns,
V
L
= +3.0V to +5.5V
5 MHz
Falling Edge of CS to Rising Edge
of CLK Required Setup Time
t
LEAD
Input rise/fall time < 2ns,
V
L
= +3.0V to +5.5V, Figure 1
110 ns
Falling Edge of CLK to Rising
Edge of CS Required Setup Time
t
LAG
Input rise/fall time < 2ns,
V
L
= +3.0V to +5.5V, Figure 1
50 ns
SDI Valid to Falling Edge of CLK
Required Setup Time
t
SI(SU)
Input rise/fall time < 2ns,
V
L
= +3.0V to +5.5V, Figure 1
30 ns
Falling Edge of CLK to SDI
Required Hold Time
t
SI
HOLD
Input rise/fall time < 2ns,
V
L
= +3.0V to +5.5V, Figure 1
20 ns
Time From Falling Edge of CS to
SDO Low Impedance
t
SO(EN)
Input rise/fall time < 2ns,
V
L
= +3.0V to +5.5V, Figure 1
55 ns
Time From Rising Edge of CS to
SDO High Impedance
t
SO(DIS)
V
L
= +3.0V to +5.5V, Figures 1 and 2 55 ns
Time from Rising Edge of CLK to
SDO Data Valid
t
VALID
C
SDO
=15pF,
V
L
= +3.0V to +5.5V, Figure 1
70 ns
C
TDEB
= 500pF 3.18 5.9 9.42
Debounce time t
DEB
C
TDEB
= 10nF (Note 6) 63 120 188
ms
Scanning Time Pulse t
SCAN
130 250 400 µs
Scanning Time Period t
SCAN_P
SC2 = 0, SC1 = 1, SC0 = 1 4 8 14 ms
Wetting Time Pulse t
WET
WTOFF = 0 10 21 35 ms
Time from Shutdown To Normal
Operation
SD low-to-high transition to input
monitoring enabled
200 µs
Note 1: All units are 100% production tested at T
A
= +125°C. Limits over the operating temperature range are guaranteed by
correlation to the +125°C tests.
Note 2: The total supply current is the sum of the current flowing into V
L
, BAT, and BATREF.
Note 3: V
TH_C
= (V
TH_HIGH
+ V
TH_LOW
)/2.
Note 4: V
TH_HYS
= (V
TH_HIGH
- V
TH_LOW
).
Note 5: Wetting current rise/fall time is measured as the time from 10% to 90% of the maximum wetting current.
Note 6: Guaranteed by design.
