Datasheet

SYMPTOM CHECK SOLUTION
GUI says hardware not
found.
Is the LED labeled D20 red?
Ifyes,thentheelectronicfuse(U7)isinafaultstate.Inspectfor
electrical shorts on the PCB and make sure that the PCB is not sit-
ting on a conductive surface.
Does the LED labeled D21
turn green when the GUI is
running?
If not, then exit the GUI and try running it again. If D20 still does
not turn green, then exit the GUI and try connecting the USB
cabletoadifferentUSBportonthePCandwaitforaWindows
messagethatstatesthehardwareisreadytouse.RuntheGUI
again.
Are any of the LEDs illumi-
nated?
If not, then the PCB may not be getting power from the USB. Try a
different USB cable or a different USB port.
No slave address found
and read/writes fail
Jumper J1 Make sure jumper J1 is installed to power the MAX34460.
Jumper J23 Make sure 4 jumpers on J23 are installed.
Channels do not turn on
IsthereaCONTROL#faulton
the Status Tab of the GUI?
Default configuration Control is active high. Make sure S1 and S2
are in the high position
IstheALERTLEDonandall
channel LEDs off?
If so, make sure switch PSEN (S6) is in the on position to connect
the PSENs of MAX34460 to the channels.
IstheALERTLEDonand
Channel 0 LED on?
Ifso,makesureswitchRS(S5)isintheonpositiontoconnectthe
power-supply outputs to the MAX34460.
Margining is not working,
voltage is not changing
S4
Make sure the DAC (S4) switch is in the on position to connect the
DACs from DS4424 to FB of channels 0–3
DESIGNATION QTY DESCRIPTION
C0A–C0D,
C2A–C2D,
C20, C22, C25,
C201, C202,
C204
14
10F
F,X5Rceramic
capacitors (0805)
TaiyoYuden
EMK212ABJ106KD-T
C01, C05,
C211
3
1F
F,X7Rceramic
capacitors (0805)
MurataGRM21BR71A105KA01K
C06 0 Capacitor, do not populate
C1A–C1D,
C04, C21, C24,
C203, C214
9
0.01F
F,X7Rceramic
capacitors (0805)
TDKC2012X7R1H103KT
C02, C03,
C07–C11,
C212
8
0.1F
F,X7Rceramic
capacitors (0805)
TDKCGJ4J2X7R1H104K
C23 0
Donotpopulate,470FF aluminum
capacitor
C213 1
220nF,X7Rceramic
capacitor (0805)
TDKCGJ4J2X7R1H224K
C215 0
Do not populate, ceramic capaci-
tor (0805)
D1, D22 2
Schottky diodes
PanasonicDB2W31900L
DESIGNATION QTY DESCRIPTION
D2,D3,D4,D7,
D8, D9, DA–DD
10
RedLEDs(1206)
KingbrightAPTR3216EC
D5, D6 2
Green LEDs (1206)
LumexSML-LX1206GC-TR
D20, D21 2
Red/greendualLEDs
Kingbright APHB
M2012SURKCGKC
J1 1
2-pin header, 2.54mm pitch
961102-6404-AR
J2, J22 2
4-pin headers, 2.54mm pitch
961104-6804-AR
J3 1
3-pin header, 2.54mm pitch
961103-6404-AR
J4 1
Black banana jack (GND)
571-0100
J5–J12, J21 0 Do not populate, headers
J20 1
5-pin female USB-mini header
54819-0519
J23 1
8-pin (2 x 4) header
961104-6804-AR
Q1,Q2 2
60V,340mAnMOSFETs(SC70)
ONSemi2N7002WT1G
MAX34460 Evaluation Kit
Evaluates: MAX34460
16Maxim Integrated
Table 5. Troubleshooting
Component List