MC33996 View Datasheet(PDF) - Freescale Semiconductor
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MC33996 Datasheet PDF : 24 Pages
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ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. DYNAMIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions of 3.1 V ≤ SOPWR ≤ 5.5 V, 5.0 V ≤ VPWR ≤ 18 V, -40°C ≤ TA ≤ 125°C unless otherwise
noted. Where applicable, typical values reflect the parameter’s approximate average value with VPWR = 13 V, TA = 25°C.
Characteristic
Symbol
Min
Typ
Max
Unit
POWER OUTPUT TIMING (VPWR)
Output Slew Rate
RL = 60Ω (15)
Output Turn ON Delay Time (16)
Output Turn OFF Delay Time (16)
Output ON Short Fault Disable Report Delay (17)
Output OFF Open Fault Delay Time (17)
Output PWM Frequency
DIGITAL INTERFACE TIMING (CS, SO, SI, SCLK) (23)
SR
V/μs
1.0
2.0
10
tDLY (ON)
1.0
2.0
10
μs
t DLY(OFF)
1.0
4.0
10
μs
tDLY (SHORT)
100
–
450
μs
t DLY(OPEN)
100
–
450
μs
t FREQ
–
–
2.0
kHz
Required Low State Duration on VPWR for Reset
VPWR ≤ 0.2V (18)
t RST
μs
–
–
10
Falling Edge of CS to Rising Edge of SCLK
Required Setup Time
t LEAD
100
–
ns
–
Falling Edge of SCLK to Rising Edge of CS
Required Setup Time
t LAG
50
–
ns
–
SI to Falling Edge of SCLK
Required Setup Time
t SI (su)
16
–
ns
–
Falling Edge of SCLK to SI
Required Hold Time
t SI (hold)
20
–
ns
–
SI, CS, SCLK Signal Rise Time (19)
SI, CS, SCLK Signal Fall Time (19)
Time from Falling Edge of CS to SO Low-impedance (20)
Time from Rising Edge of CS to SO High-impedance (21)
Time from Rising Edge of SCLK to SO Data Valid (22)
t R (SI)
–
t F (SI)
–
t SO (EN)
–
t SO (DIS)
–
t VALID
–
5.0
–
ns
5.0
–
ns
–
50
ns
–
50
ns
25
80
ns
Notes
15. Output slew rate measured across a 60Ω resistive load.
16. Output turn ON and OFF delay time measured from 50% rising edge of CS to 80% and 20% of initial voltage.
17. Duration of fault before fault bit is set. Duration between access times must be greater than 450μs to read faults.
18. This parameter is guaranteed by design; however, it is not production tested.
19. Rise and Fall time of incoming SI, CS, and SCLK signals suggested for design consideration to prevent the occurrence of double pulsing.
20. Time required for valid output status data to be available on SO pin.
21. Time required for output states data to be terminated at SO pin.
22. Time required to obtain valid data out from SO following the rise of SCLK with 200pF load.
23. This parameter is guaranteed by design. Production test equipment used 4.16MHz, 5.5/3.1V SPI Interface.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33996
7
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