MAX20047AFPASLASHV+ datasheet(21/29 Pages) MAXIM

21 / 29 page

ESD Protection

The IC requires no external ESD protection. All Maxim

devices incorporate ESD protection structures to protect

against electrostatic discharges encountered during han-

dling, assembly, and system-level operation. When used

with the configuration shown in the Typical Application

Circuit, the IC is characterized for protection to the fol-

lowing limits:

● ±25kV ISO 10605 Air Gap

● ±8kV ISO 10605 Contact Discharge

● ±15kV IEC 61000-4-2 Air Gap

● ±8kV IEC 61000-4-2 Contact Discharge

● ±15kV 330Ω, 330pF Air Gap

● ±8kV 330Ω, 330pF Contact Discharge

Note: All application-level ESD testing is performed on

the standard evaluation kit.

ESD Test Conditions

ESD performance depends on a variety of conditions.

Contact Maxim for test setup, test methodology, and test

results.

Human Body Model

Figure 4 shows the Human Body Model and Figure

5 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 interest,

which is then discharged into the device through a 1.5kΩ

resistor.

IEC 61000-4-2

The IEC 61000-4-2 standard covers ESD testing and

performance of finished equipment. The IC helps users

design equipment that meet Level 4 of IEC 61000-4-2.

The main difference between tests done using the Human

Body Model and IEC 61000-4-2 is higher peak current

in IEC 61000-4-2. Because series resistance is lower in

the IEC 61000-4-2 ESD test model (Figure 4), the ESD

withstand voltage measured to this standard is generally

lower than that measured using the Human Body Model

(Figure 5). Figure 6 shows the current waveform for the

±8kV, IEC 61000-4-2 Level 4, ESD Contact Discharge

test. 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 4. IEC 61000-4-2 ESD Test Model

Figure 5. Human Body Current Waveform

Figure 6. IEC 61000-4-2 ESD Generator Current Waveform

1MΩ

DEVICE

UNDER

TEST

HIGH-

VOLTAGE

SOURCE

STORAGE

CAPACITOR

100pF

CHARGE

CURRENT-LIMIT

RESISTOR

1.5kΩ

DISCHARGE

RESISTANCE

IPEAK (AMPS)

100%

90%

10%

tRL

tDL

36.8%

100%

90%

10%

tR = 0.7ns

TO 1ns

30ns

60ns

IPEAK (AMPS)

MAX20047

Dual 3A USB DCP Charger

www.maximintegrated.com

Maxim Integrated │ 21

MAX20047AFPA/V+ Datasheet(PDF) 21 Page - Maxim Integrated Products

MAX20047AFPA/V+ Datasheet(HTML) 21 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Datasheet Download

Link URL