Maxim Integrated MAX16821B Evaluation Kit MAX16821BEVKIT+ MAX16821BEVKIT+ Data Sheet
Product codes
MAX16821BEVKIT+
General Description
The MAX16821B evaluation kit (EV kit) is a fully assem-
bled and tested surface-mount printed-circuit board
(PCB) designed to evaluate the MAX16821B pulse-
width-modulation (PWM) LED driver controller in a
boost configuration.
bled and tested surface-mount printed-circuit board
(PCB) designed to evaluate the MAX16821B pulse-
width-modulation (PWM) LED driver controller in a
boost configuration.
The MAX16821B EV kit operates from a DC supply volt-
age of 7V to 24V. The EV kit’s output is configured to
deliver 660mA of current into series LED string with a
maximum forward voltage of 28V. The LED brightness
can be dimmed using a digital PWM signal.
age of 7V to 24V. The EV kit’s output is configured to
deliver 660mA of current into series LED string with a
maximum forward voltage of 28V. The LED brightness
can be dimmed using a digital PWM signal.
The EV kit provides an option to configure the
MAX16821B IC’s overvoltage protection, switching fre-
quency, and frequency compensation. The MAX16821B
EV kit also features a clock output PCB pad to drive a
second LED current regulator out-of-phase.
MAX16821B IC’s overvoltage protection, switching fre-
quency, and frequency compensation. The MAX16821B
EV kit also features a clock output PCB pad to drive a
second LED current regulator out-of-phase.
Features
♦ 7V to 24V Input-Voltage Range
♦ 660mA Output Current
♦ Pulse-Width-Modulated LED Current Dimming
♦ Resistor-Adjustable Overvoltage Protection and
♦ 660mA Output Current
♦ Pulse-Width-Modulated LED Current Dimming
♦ Resistor-Adjustable Overvoltage Protection and
Switching Frequency
♦ Clock Output
♦ Fully Assembled and Tested
♦ Fully Assembled and Tested
Evaluates: MAX16821B
MAX16821B Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
19-1967; Rev 0; 11/07
Component List
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.
or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
PART
TYPE
MAX16821BEVKIT+
EV Kit
+
Denotes lead-free and RoHS-compliant.
DESIGNATION
QTY
DESCRIPTION
C1, C5, C6
3
10µF±10%, 50V X7S ceramic
capacitors (1210)
Taiyo Yuden UMK325BJHI06K
capacitors (1210)
Taiyo Yuden UMK325BJHI06K
C2
1
0.1µF±10%, 50V X7R ceramic
capacitor (1206)
Murata GRM319R71H104K
capacitor (1206)
Murata GRM319R71H104K
C3, C4
2
1000pF±10%, 25V X7R ceramic
capacitors (0603)
Murata GRM188R71E102K
capacitors (0603)
Murata GRM188R71E102K
C7
1
0.022µF±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H223K
capacitor (0603)
Murata GRM188R71H223K
C8
1
4.7µF±10%, 6.3V X7R ceramic
capacitor (0603)
Murata GRM188R70J475K
capacitor (0603)
Murata GRM188R70J475K
C9, C10
2
0.1µF±10%, 50V X7R ceramic
capacitors (0603)
Murata GRM188R71H104K
capacitors (0603)
Murata GRM188R71H104K
D1
1
3A, 60V Schottky diode (SMA)
Diodes Inc. B360A-13-F
Diodes Inc. B360A-13-F
DESIGNATION
QTY
DESCRIPTION
L1
1
8.8µH, 4A inductor
Sumida CDEP105-8R8
Sumida CDEP105-8R8
N1–N4
4
60V, 115mA n-channel MOSFETs
(SOT23)
Central Semiconductor 2N7002
LEAD-FREE
(SOT23)
Central Semiconductor 2N7002
LEAD-FREE
N5
1
40V, 4.9A n-channel MOSFET
(8-pin SO)
Vishay Si4446DY
(8-pin SO)
Vishay Si4446DY
N6
1
60V, 3.2A n-channel MOSFET
(6-pin TSOP)
Vishay Si3458DV-E3
(6-pin TSOP)
Vishay Si3458DV-E3
R1
1
249k
Ω ±1% resistor (0603)
R2, R5, R10
3
10k
Ω ±1% resistors (0603)
R3
0
Not installed, resistor—shorted
(0603)
(0603)
R4
1
124k
Ω ±1% resistor (0603)
R6
1
0.007
Ω ±2%, 0.5W sense resistor
(1206)
IRC LRC-LRF1206LF-01-R007-G
IRC LRC-LRF1206LF-01-R007-G