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MAX16820EVKIT Datasheet(Scheda tecnica) 1 Page - Maxim Integrated Products

Numero della parte MAX16820EVKIT
Dettagli  MAX16820 Evaluation Kit
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Produttore  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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General Description
The MAX16820 evaluation kit (EV kit) demonstrates a
step-down, constant-current, hysteretic controlled
switching regulator for driving high-brightness LEDs
(HB LEDs) using the MAX16820 controller IC. This EV
kit is configured to supply an average output LED cur-
rent of 1A, and operates from a 5V to 28V supply.
The EV kit eases evaluation of the MAX16820 dedicat-
ed pulse-width-modulation (PWM) dimming control and
undervoltage lockout (UVLO) features.
The MAX16820 EV kit comes with the MAX16820
installed. The MAX16820 EV kit can also be used to
evaluate the MAX16819. Contact the factory for free
samples of the pin-compatible MAX16819 to evaluate
this part.
Features
o Operates from a 5V to 28V, 1.5A Supply
o Constant LED Current Control
o 1A Average LED Current
o PWM Dimming Control Up to 20kHz
o Fully Assembled and Tested
MAX16820 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
19-0769; Rev 0; 3/07
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
+
Denotes a lead-free and RoHS-compliant EV kit.
*
This limited temperature range applies to the EV kit PCB only.
The MAX16820 IC temperature range is -40°C to +125°C.
**
EP = Exposed paddle.
PART
TEMP RANGE
IC PACKAGE
MAX16820EVKIT+
0°C to +70°C*
6 TDFN-EP**
DESIGNATION
QTY
DESCRIPTION
C1
0
Not installed, capacitor (2220)
C2
1
1µF ±10%, 50V X7R ceramic
capacitor (1210)
Murata GRM32RR71H105K or
TDK C3225X7R1H105K
C3
0
Not installed, capacitor (1206)
C4
1
1µF ±10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C105K or
TDK C1608X7R1C105K
D1
1
30V, 1A Schottky diode (SOD-123)
Fairchild Semiconductor FBR130
JU1
1
2-pin header
L1
1
56µH, 940mA inductor (7.3mm x
8.1mm)
Sumida CR75NP-560KC
Component List
DESIGNATION
QTY
DESCRIPTION
N1
1
30V, 2.7A n-channel MOSFET
(SOT23)
Fairchild Semiconductor
FDN359BN
R1
1
0.2
Ω ±1%, 0.5W sense resistor
(1206)
IRC LRC-LR1206LF-01-R200-F
R2
1
100k
Ω ±5% resistor (0603)
U1
1
MAX16820ATT+ (6-pin TDFN-EP,
3mm x 3mm x 0.8mm)
1
Shunt (JU1)
1
PCB: MAX16820 Evaluation Kit+




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