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MAX16823EVKIT Datasheet(Scheda tecnica) 4 Page - Maxim Integrated Products

Numero della parte MAX16823EVKIT
Dettagli  MAX16823 Evaluation Kit
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Produttore  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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Input-Voltage Consideration
For proper operation, the EV kit’s minimum input volt-
age must always be:
VIN(MIN) ≥ VFT(MAX) + ΔVDO + VCS(MAX)
where VFT(MAX) is the total forward voltage of all series-
connected LEDs, ΔVDO is the MAX16823 dropout volt-
age from IN to OUT_, and VCS(MAX) is the regulated
current-sense voltage.
The EV kit can operate below the minimum VIN(MIN)
voltage; however, the output current may not meet the
full regulation specification.
Power Dissipation
Thermal shutdown turns the device off if power dissipa-
tion in the MAX16823 IC causes the junction tempera-
ture to reach +155°C (typ). The MAX16823 EV kit is
configured for operation between the 6.5V to 16V range
while powering the on-board LEDs. When configuring
the MAX16823 EV kit for other configurations, total
power dissipation on the PCB should be considered to
prevent thermal shutdown. Verify that components Q1
and R5 power-dissipation ratings are not exceeded
when operating external LEDs at OUT_3.
MAX16823 Evaluation Kit
4
_______________________________________________________________________________________
JU7
R4
4.02
Ω
1%
OUT1
CS1
JU6
JU5
JU4
R3
4.02
Ω
1%
C1
OPEN
C2
0.1
μF
50V
R6
10k
Ω
OUT2
CS2
D1
D2
D3
R2
4.02
Ω
1%
CS_3
OUT_3
Q1
2
3
1
2
1
3
R5
0.4
Ω
1%
R1
OPEN
OUT3
GND
CS3
IN
GND
LEDGOOD
OUT2
CS2
OUT1
LEDGOOD
REG
DIM1
DIM2
DIM3
LGC
CS1
IN
IN
IN
MAX16823
U1
567
14
11
15
10
4
9
1
2
3
8
12
16
13
TP1
R7
0
Ω
JU1
DIM1
2
1
3
JU2
DIM2
2
1
3
JU3
DIM3
GND
2
1
3
D4
D5
D6
D7
D8
D9
Figure 1. MAX16823 EV Kit Schematic




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