MAX34565EVKIT# Maxim Integrated, MAX34565EVKIT# Datasheet - Page 8

• Manufacturer Part Number: MAX34565EVKIT#
• Description: Power Management IC Development Tools MAX34565 Eval Kit
• Manufacturer: Maxim Integrated
• Type: Power Driversr
• Series: MAX34565r

Specifications of MAX34565EVKIT#

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: MAX34565
• Input Voltage: 12 V
• Output Voltage: 1.95 V
• Output Current: 3.6 A
• Part # Aliases: 90-34565#K00

Once the latchoff version has entered thermal shutdown,
it does not attempt to turn back on. The only way to turn
this device back on is to cycle the power to the device.
When power is reapplied ton the V
temperature needs to be less than T
to be enabled.
The exposed pad is the voltage supply pin for the device
and should be connected to a large trace or plane. The
exposed pad also acts as a heatsink, and can dissipate
heat from the device.
It is of utmost importance to properly bypass the device’s
supply pins. A decoupling capacitor absorbs the energy
stored in the supply and board parasitic inductance when
the FET is turned off, thereby reducing the magnitude of
overshoot of V
high-quality (low ESR, low ESL) ceramic capacitor sol-
dered directly between the V
Any series resistance with this bypass capacitor lowers
its effectiveness and is not recommended. A minimum
0.5FF ceramic capacitor is required
depending on the parasitic inductances present in the
end application, a larger capacitor could be necessary.
A small resistor (2I to 10I) in series with the GND pin of
the device limits current flow during momentary reverse
avalanche break down, and consequently limits total
parasitic charge injected into the device
method is used, it is imperative that the bypass capaci-
tor be directly across chip V
though not through this resistor.
Small parasitic resistances in the bond wires of the LOAD
pins and in the traces connected to the LOAD pins can
result in a voltage offset while current is flowing. Since
the voltage drop across R
I
I
OVL
SCL
limits, this induced offset can increase the value of
and I
OVL
CC
from the specified values for any given
Applications Information
. This can be accomplished by using a
LOAD and ILIM Connections
Current Limiting Resistor
ILIM
Decoupling Capacitors
CC
12V Hot-Plug Switch in TDFN Package
CC
is used to set the I
and ground connections,
Exposed Pad (V
and GND connections.
CC
(Figure
SHDN
Latchoff Version
pad, the junction
(Figure
for the device
5). However,
5). If this
SCL
CC
and
)
R
that one of the LOAD pins have a dedicated connection
to ILIM though R
current, I
pins to pass I
there is only a small amount of current passed from this
lone LOAD pin to ILIM, there is a negligible voltage offset
applied to the internal comparator. This method is the
best way to attain an accurate current limit for I
Figure 5. Power Conditioning Circuit
Figure 6. LOAD and ILIM Connections
ILIM
. To greatly reduce this offset, it is recommended
LOAD
MINIMUM
REQUIRED
LOAD
0.5µF
MAX34565
(Figure
ILIM
, which should be sufficient. Because
, and not be used to pass the LOAD
6). This would leave four LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
ILIM
BOARD GROUND
MAX34565
MAX34565
TO APPLICATION
GND
V
CC
2Ω TO 10Ω
RECOMMENDED
R
LIM
LOAD
.
8