MAX13483E Maxim Integrated Products, MAX13483E Datasheet - Page 11

• Manufacturer Part Number: MAX13483E
• Description: (MAX13481E - MAX13483E) ESD-Protected USB Transceivers
• Manufacturer: Maxim Integrated Products

Figure 1. Rise and Fall Times
Figure 2. Timing of VP and VM to D+ and D-
stand voltage measured to IEC 61000-4-2 generally is
lower than that measured using the Human Body
Model. Figure 8 shows the IEC 61000-4-2 model. The
Contact Discharge method connects the probe to the
device before the probe is charged.
The Machine Model for ESD tests all connections using
a 200pF storage capacitor and zero discharge resis-
VM
V
V
VP
D+
D-
OHD
OLD
±15kV ESD-Protected USB Transceivers with
t
t
FR
PLH_DRV
, t
10%
LR
______________________________________________________________________________________
90%
V
CRS_F
, V
CRS_L
VP AND VM RISE/FALL TIMES < 4ns
External/Internal Pullup Resistors
t
90%
PHL_DRV
Machine Model
10%
t
FF
, t
LF
tance. Its objective is to emulate the stress caused by
contact that occurs with handling and assembly during
manufacturing. All pins require this protection during
manufacturing, not just inputs and outputs. After PC
board assembly, the Machine Model is less relevant to
I/O ports.
Figure 3. Driver’s Enable and Disable Timing
OE
OE
D+/D-
D+/D-
t
t
PHZ_DRV
PLZ_DRV
Timing Diagrams
t
t
PZL_DRV
PZH_DRV
VP/VM CONNECTED TO GND,
D+/D- CONNECTED
TO PULLUP
VP/VM CONNECTED TO V
D+/D- CONNECTED
TO PULLDOWN
L
,
11