MAX16818EVKIT+ Maxim Integrated Products, MAX16818EVKIT+ Datasheet

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MAX16818EVKIT+

Manufacturer Part Number
MAX16818EVKIT+
Description
KIT EVALUATION FOR MAX16818
Manufacturer
Maxim Integrated Products
Datasheets

Specifications of MAX16818EVKIT+

Current - Output / Channel
1A
Outputs And Type
1, Non-Isolated
Voltage - Output
18V
Features
Dimmable
Voltage - Input
6 ~ 28V
Utilized Ic / Part
MAX16818
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX16818 evaluation kit (EV kit) is a fully assem-
bled and tested surface-mount printed-circuit board
(PCB) designed to evaluate the MAX16818 pulse-width
modulation (PWM) LED driver controller in a buck-boost
configuration.
The MAX16818 EV kit operates from a DC supply volt-
age of 6V to 28V. The EV kit’s output is configured to
deliver at least 1A of current into an 18V series LED
string. The LED brightness can be dimmed using a dig-
ital PWM signal.
The EV kit provides an option to configure the
MAX16818 IC’s overvoltage protection, switching fre-
quency, and frequency compensation. The MAX16818
EV kit also features a 180° out-of-phase clock output
PCB pad.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
19-0842; Rev 0; 6/07
DESIGNATION
C8, C10
C6, C7
C11
C1
C2
C3
C4
C5
C9
QTY
________________________________________________________________ Maxim Integrated Products
1
1
1
1
1
2
0
1
1
General Description
2.2µF ±10%, 50V X7R ceramic
capacitor (1206)
Murata GRM31CR71H225K
1µF ±20%, 50V X7R ceramic
capacitor (0805)
Murata GRM21BR71H105M
4.7µF ±10%, 6.3V X7R ceramic
capacitor (0603)
Murata GRM188R70J475K
0.47µF ±10%, 6.3V X7R ceramic
capacitor (0603)
Murata GRM188R70J474K
1000pF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H102K
10µF ±10%, 50V X7R ceramic
capacitors (2220)
Murata GRM55DR71H106K
0.22µF ±10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C224K
2200pF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H222K
Not installed, capacitors (0603)
DESCRIPTION
MAX16818 Evaluation Kit
♦ 6V to 28V Input-Voltage Range
♦ 1A Output Current into an 18V LED String
♦ Pulse-Width Modulated LED Current Dimming
♦ Resistor-Adjustable Overvoltage Protection and
♦ 180° Out-of-Phase Clock Output
♦ Fully Assembled and Tested
+ Denotes a lead-free and RoHS-compliant EV kit.
* This limited temperature range applies to the EV kit PCB only.
The MAX16818 IC temperature range is -40°C to +125°C.
** EP = Exposed paddle.
MAX16818EVKIT+
DESIGNATION
Switching Frequency
N2–N5
C12
C13
C14
JU1
JU2
PART
D1
N1
L1
P1
QTY
1
1
1
1
1
1
1
1
4
1
TEMP RANGE
0°C to +70°C*
Ordering Information
0.1µF ±10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C104K
100pF ±5%, 50V C0G ceramic
capacitor (0603)
Murata GRM1885C1H101J
100µF, 50V electrolytic capacitor
(8mm x 10.2mm)
Panasonic EEEFK1H101P
60V, 2A Schottky diode (SMB)
Diodes Inc. B260-13-F
3-pin header
2-pin header
8.8µH, 4A
Sumida CDEP105-8R8
40V , 4.9A n- channel M OS FE T ( S O8)
V i shay S i 4446D Y
60V, 115mA n-channel MOSFETs
(SOT23)
Central Semiconductor 2N7002
LEAD-FREE
-20V, -3.8A p-channel MOSFET
(TSOP-6)
Vishay Si3467DV-T1-E3
Component List
DC
DESCRIPTION
inductor
IC PACKAGE
28 TQFN-EP**
Features
1

Related parts for MAX16818EVKIT+

MAX16818EVKIT+ Summary of contents

Page 1

... Out-of-Phase Clock Output ♦ Fully Assembled and Tested Ordering Information PART TEMP RANGE MAX16818EVKIT+ 0°C to +70°C* + Denotes a lead-free and RoHS-compliant EV kit. * This limited temperature range applies to the EV kit PCB only. The MAX16818 IC temperature range is -40°C to +125°C. ...

Page 2

MAX16818 Evaluation Kit DESIGNATION QTY DESCRIPTION NPN bipolar transistor (SOT223 Fairchild Semiconductor PZT3904 PNP bipolar transistor (SOT23 Fairchild Semiconductor MMBT3906 R1 1 1kΩ ±1% resistor (1206 12.1kΩ ±1% resistor (0603) R3, R7, R15, 4 ...

Page 3

Recommended Equipment Before beginning, the following equipment is needed: • 28V power supply • A series-connected LED string rated at 1A (maxi- mum voltage on the string should not exceed 18V) • A current probe to ...

Page 4

MAX16818 Evaluation Kit The MAX16818 EV kit also features a digital clock out- put that is 180° out-of-phase with respect to the high- side driver, N1. The clock output is available at the CLKOUT PCB pad. Jumper Selection Input-Voltage Range ...

Page 5

Figure 1. MAX16818 EV Kit Schematic _______________________________________________________________________________________ MAX16818 Evaluation Kit 5 ...

Page 6

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products Figure 3. MAX16818 EV Kit PCB Layout— ...

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