Datasheet

_________________________________________________________________ Maxim Integrated Products 2
MAX34406 Evaluation Kit
Evaluates: MAX34406
Getting Started
• Connect a 3.3V to 5V DC power supply to the red
(+) and back (-) banana jacks and apply power. The
DC power supply is used by the MAX34406 to power
up the internal voltage reference, comparators, and
logic. The power supply is not required for the current
sense amplifiers and will not damage the device if it is
left unconnected.
• Using a screwdriver, connect the through current to
be measured to one or more of the green 2-position
terminals (labeled IN1 to IN4). Be sure that the current
flow is as shown on the PCB; otherwise, the current-
sense amplifier will not indicate any current flow.
Current flowing in the wrong direction will not damage
the device.
• Apply 0 to 3A (with a common-mode voltage of 2V to
28V) through the green terminals and measure the
resulting analog signal at the OUT test points near
the center of the PCB (Figure 2). The OUT signals
should change linearly from 0 to 750mV as the current
changes from 0 to 3A.
• Applying more than 4A causes the overcurrent thresh-
olds to fire and the SHTDN output and associated
OC1 to OC4 outputs to assert. All these signals have
labeled test points on the EV kit.
Component List
DESIGNATION QTY DESCRIPTION
C1 1 0.1µF capacitor
C2 1 0.01µF capacitor
C3-C10
8 Do not populate
J1 1 Red banana jack
J2 1 Black banana jack
J3-J6
4
2-position screw
terminal
R1, R3, R28, R29,
R30, R31
6
10kI resistors
R2 1 Do not populate
R4, R5, R14, R15,
R16, R17, R26, R27
8
0I resistors
R6-R13, R18-R25
16
10mI ±1% resistors
TP1–TP26 26 Test points
U1 1
Quad current-sense
amplifier (24 TQFN-EP)
Maxim
MAX34406HETG+
— — PCB: MAX34406 EV Kit