MAX3353EEUE Maxim Integrated Products, MAX3353EEUE Datasheet - Page 17

• Manufacturer Part Number: MAX3353EEUE
• Description: Communication ICs - Various
• Manufacturer: Maxim Integrated Products
• Type: USB On-the-Go Charge Pumpr

Specifications of MAX3353EEUE

• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V, 5 V
• Supply Type: Analog
• Package / Case: TSSOP-16
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.6 V
• Supply Current: 73 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Connect all capacitors as close to the device as possible.
V
lengths as short as possible
To protect the MAX3353E against ESD, D+, D-, ID_IN,
and V
to protect the device up to ±15kV. The ESD structures
withstand high ESD in all states—normal operation,
shutdown, and powered down. In order for the 15kV
ESD structures to work correctly, a 1µF or greater
capacitor must be connected from V
protection can be tested in various ways; D+, D-, ID_IN,
and V
ing limits:
1) ±15kV using the Human Body Model
2) ±6kV using the IEC 1000-4-2 Contact Discharge
3) ±11kV using the IEC 1000-4-2 Air-Gap Discharge
ESD Test Conditions: ESD performance depends on
a variety of conditions. Contact Maxim for a reliability
report that documents test setup, test methodology,
and test results.
Figure 11 shows the Human Body Model and Figure 12
shows the current waveform it generates when dis-
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of inter-
est, which is then discharged into the test device
through a 1.5kΩ resistor.
The IEC 1000-4-2 standard covers ESD testing and
performance of finished equipment; it does not specifi-
cally refer to integrated circuits. The major difference
between tests done using the Human Body Model and
IEC 1000-4-2 is a higher peak current in IEC 1000-4-2,
because series resistance is lower in the IEC 1000-4-2
model. Hence, the ESD withstand voltage measured to
IEC 1000-4-2 is generally lower than that measured
using the Human Body Model. Figure 13 shows the IEC
1000-4-2 model. The Air-Gap Discharge test involves
approaching the device with a charged probe. The
Contact Discharge method connects the probe to the
device before the probe is energized. Figure 14 shows
the IEC 1000-4-2 current waveform.
BUS
method
method
USB On-the-Go Charge Pump with Switchable
BUS,
BUS
and V
are characterized for protection to the follow-
have extra protection against static electricity
CC
bypass capacitors should have trace
______________________________________________________________________________________
±15kV ESD Protection
Human Body Model
BUS
IEC 1000-4-2
to GND. ESD
Pullup/Pulldown Resistors
The Machine Model for ESD tests all pins using a
200pF storage capacitor and zero discharge resis-
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. The Machine Model is less relevant to
I/O ports after PC board assembly.
The MAX3353E high oscillator frequency makes proper
layout important to ensure stability and maintain the
output voltage under all loads. For best performance,
minimize the distance between the capacitors and the
MAX3353E.
For the latest application details on UCSP construction,
dimensions, tape-carrier information, printed circuit board
techniques, bump-pad layout, and recommended reflow
temperature profile as well as the latest information on
reliability testing results, refer to Maxim Application Note:
UCSP – A Wafer-Level Chip Scale Package available on
Maxim’s website at www.maxim-ic.com/ucsp.
Layout Considerations
UCSP Reliability
Machine Model
17