MAX13481E Datasheet, PDF (12/19 Pages) Maxim Integrated Products – ±15kV ESD-Protected USB Transceivers with External/Internal Pullup Resistors

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