MAX4840A MAXIM [Maxim Integrated Products], MAX4840A Datasheet - Page 8

• Manufacturer Part Number: MAX4840A
• Description: Overvoltage-Protection Controllers with Status FLAG
• Manufacturer: MAXIM [Maxim Integrated Products]

Overvoltage-Protection Controllers with
Status FLAG
Since January 1996, all equipment manufactured and/or
sold in the European community has been required to
meet the stringent IEC 61000-4-2 specification. The IEC
61000-4-2 standard covers ESD testing and perfor-
mance of finished equipment; it does not specifically
refer to integrated circuits. The MAX4838A/MAX4840A/
MAX4842A help users design equipment that meets
Level 3 of IEC 61000-4-2, without additional ESD-protec-
tion components.
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 10),
Table 1. MOSFET Suggestions
Figure 8. Human Body ESD Test Model
8
Si5902DC
Si1426DH
FDC6305N
FDC6561AN
FDG315N
VOLTAGE
SOURCE
_______________________________________________________________________________________
HIGH-
DC
PART
CHARGE-CURRENT-
LIMIT RESISTOR
1MΩ
R
C
100pF
C s
CONFIGURATION/
STORAGE
CAPACITOR
Single/SC70-6
Single/SC70-6
Dual/ SSOT-6
RESISTANCE
Dual/SSOT-6
Dual/1206-8
DISCHARGE
1.5kΩ
PACKAGE
R
D
IEC 61000-4-2
V
DEVICE
UNDER
DS
TEST
MAX (V)
30
30
20
30
30
the ESD-withstand voltage measured to this standard is
generally lower than that measured using the Human
Body Model. Figure 11 shows the current waveform for
the ±8kV IEC 61000-4-2 Level 4 ESD Contact
Discharge test. The Air-Gap test involves approaching
the device with a charger probe. The Contact
Discharge method connects the probe to the device
before the probe is energized.
Figure 9. Human Body Model Current Waveform
R
ON
AMPERES
(mΩ)
143
115
145
160
AT 4.5V
80
I
P
36.8%
100%
90%
10%
0
0
Vishay Silconix
www.vishay.com
402-563-6866
Fairchild Semiconductor
www.fairchildsemi.com
207-775-8100
t
RL
CURRENT WAVEFORM
TIME
MANUFACTURER
t
DL
I r
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)