MAX4987AETA+T Maxim Integrated Products, MAX4987AETA+T Datasheet - Page 8

• Manufacturer Part Number: MAX4987AETA+T
• Description: IC CTLR OVP USB ESD PROT 8-TDFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX4987AETA+T

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

are specified for ±15kV Air-Gap Discharge and ±6kV
Contact Discharge IEC 61000-4-2 on the CD+ and CD-
pins.
The major difference between tests done using the
Human Body Model and IEC 61000-4-2 is a higher peak
current in IEC 61000-4-2, due to lower series resistance.
Hence, the ESD withstand voltage measured to IEC
61000-4-2 generally is lower than that measured using
the Human Body Model. Figure 5 shows the IEC 61000-
4-2 model. The Contact Discharge method connects the
probe to the device before the probe is charged. The
Air-Gap Discharge test involves approaching the device
with a charged probe.
Overvoltage-Protection Controller
with USB ESD Protection
8
_______________________________________________________________________________________
CONNECTOR
USB
VBUS
D+
D-
IN
CD+
CD-
REFERENCE
V
BG
+
-
+
-
OV
UV
OVERCURRENT
FAULT
Figure 5. IEC 61000-4-2 ESD Test Model
PROCESS: BiCMOS
GND
VOLTAGE
SOURCE
HIGH-
DC
MAX4987AE/
MAX4987BE
CHARGE-CURRENT-
CONTROL
CHARGE
LIMIT RESISTOR
PUMP
LOGIC
50MΩ TO 100MΩ
Typical Operating Circuit
R
C
150pF
C s
ACOK
OUT
V
EN
CC
STORAGE
CAPACITOR
RESISTANCE
DISCHARGE
330Ω
R
D
Chip Information
V
IO
V
CC
V
D+
CHARGER
CC
BATTERY
D-
TRANSCEIVER
USB
PHONE
LOAD
DEVICE
UNDER
TEST