Rainbow Electronics MAX13483E - Manual (Page 12)

MAX13481E/MAX13482E/MAX13483E
±15kV ESD-Protected USB Transceivers with
External/Internal Pullup Resistors
12 ______________________________________________________________________________________
Timing Diagrams (continued)
+3V
0V
RCV, VM, AND VP
V L
D+/D-
t PLH_RCV ,
t PLH_SE
t
PHL_RCV
,
t PHL_SE
INPUT RISE/FALL TIME < 4ns
Figure 4. D+/D- Timing to VP, VM, and RCV
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR Cs
100pF
R
C
1M Ω
R D
1.5k Ω
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
Figure 6. Human Body ESD Test Model
I
P
100%
90%
36.8%
t RL
TIME
t DL
CURRENT WAVEFORM
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE) Ir
10%
0
0
AMPERES
Figure 7. Human Body Model Current Waveform
OE
VP/VM
VP/VM
t PLZ_SE t PZL_SE
t PHZ_SE t PZH_SE
D+/D- CONNECTED TO GND,
VP/VM CONNECTED
TO PULLUP
D+/D- CONNECTED TO +3V,
VP/VM CONNECTED
TO PULLDOWN OE
Figure 5. Receiver’s Enable and Disable Timing
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR Cs
150pF
R C
50 Ω to 100Ω
R D
330 Ω
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
Figure 8. IEC 61000-4-2 ESD Test Model