ISL72028SEH Datasheet, PDF (9/19 Pages) Intersil Corporation – 3.3V Radiation Tolerant CAN Transceiver, 1Mbps, Low Power Shutdown, Split Termination Output

ISL72028SEH
Test Circuits and Waveforms (Continued)
0Ω, 10kΩ, 50kΩ
RS
FLOAT
VREF
D
V_IN
R
V_O
15pF ±20%
CAN H
CAN L
GND
60Ω
±1%
50%
V_IN
t_(LOOP2)
50%
V_O
50%
t_(LOOP1)
50%
V_CC
0V
V_OH
V_OL
V_IN = 125kHz, Duty Cycle 50%, t_r = t_f ≤ 6ns
FIGURE 16A. TOTAL LOOP DELAY TEST CIRCUIT
FIGURE 16B. TOTAL LOOP DELAY MEASUREMENT POINTS
FIGURE 16. TOTAL LOOP DELAY
RS
CAN_H
FLOAT
V_IN
VREF
D
CAN_L
V_OD
60Ω
±1%
V_IN
R
GND
V_O
15pF ±20%
V_O
50%
50%
V_CC
0V
V_OH
V_OL
V_IN = 125kHz, 0V to V_CC, Duty Cycle 50%, t_r = t_f ≤ 6ns.
t(_{LPS - DOM)}
FIGURE 17A. LOW POWER SHUTDOWN TO DOMINANT TIME CIRCUIT
FIGURE 17B. LOW POWER SHUTDOWN TO DOMINANT TIME
MEASUREMENT POINTS
FIGURE 17. LOW POWER SHUTDOWN TO DOMINANT TIME
GND
D
CANH
I_O(SRT)
CANL
GND
I_O(SRT)
+- _{VIN = -7V}
OR 12V
0A
V_IN
0V
V_IN
10ms
|I_O(SRT)|
12V
-7V
FIGURE 18A. OUTPUT SHORT-CIRCUIT CURRENT CIRCUIT
FIGURE 18B. OUTPUT SHORT-CIRCUIT CURRENT WAVEFORMS
FIGURE 18. OUTPUT SHORT CIRCUIT
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9
FN8764.1
November 9, 2015