MAX20010EVKIT [MAXIM]
Differential Remote-Voltage Sensing;
| 型号： | MAX20010EVKIT |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Differential Remote-Voltage Sensing |
| 文件： | 总6页 (文件大小：503K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Evaluates: MAX20010C, MAX20010D
MAX20010 Evaluation Kit
Procedure
General Description
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation. Caution: Do not turn on
supplies until all connections are completed.
The MAX20010 evaluation kit (EV kit) demonstrates
the MAX20010 automotive single 6A step-down
converter. The EV kit operates over an input range
of 3V to 5.5V, with the output set for 1V and up to
6A load.
1) Set the power supply to 5V. Disable the power supply.
2) Verify that jumper JU2 has a shunt across pins 1-2
and jumpers JU1 and JU3 are open.
Features
● Differential Remote-Voltage Sensing
3) Connect the power supply between the PVDD and
nearest PGND test points.
● 3V to 5.5V Input Supply Range
4) Connect the electronic load between the SD0 and
nearest PGND test points.
2
● I C-Controlled 0.5V to 1.5875V Output Voltage
Range
5) Connect the DVM between the SD0 and nearest
PGND test points.
● 2.2MHz Operation
● ±2% Output-Voltage Accuracy
● Power-Good Output
6) Turn on the power supply.
7) Enable the electronic load.
● Current-Mode, Forced-PWM, and Skip Operation
● Proven PCB Layout
8) Verify that the voltage at the SDO output pad is
approximately 1V. Disable the power supply.
● Fully Assembled and Tested
Detailed Description of Hardware
Quick Start
Enable (EN)
Place a shunt across pins 1-2 on jumper JU2 for normal
operation. To place the device into shutdown mode, place
the shunt across pins 2-3 on JU2. See Table 1 for jumper
settings.
Recommended Equipment
● MAX20010 EV kit
● 6V, 3A DC power supply
● Electronic load capable of 6A
● Digital voltmeter (DVM)
Table 1. EN Configuration (JU1)
SHUNT POSITION
DESCRIPTION
Connects the EN pin to the voltage
at PVDD for normal operation
Pins 1-2*
Connects the EN pin to ground to
enter shutdown mode
Pins 2-3
Ordering Information appears at end of data sheet.
*Default position.
19-7588; Rev 4; 5/19
Evaluates: MAX20010C, MAX20010D
MAX20010 Evaluation Kit
Table 2. SYNC Settings
Synchronization Input/Output (SYNC)
The EV kit features a SYNC connection that allows for
synchronization input or output. The function is set by the
SO[1:0] bit, as defined in the MAX20010C/MAX20010D
IC data sheet. Jumper JU3 connects a pullup resistor to
PVDD. See Table 2 for bit description.
BIT
BIT DESCRIPTION
SYNC I/O Select
00 – Master: Input, rising edge starts cycle
01 – Master: Input, falling edge starts cycle
10 – Master: Output, falling edge starts cycle
11 – Unused
SO[1:0]
2
I C Slave Address (ADDR)
The EV kit provides jumper JU1 to set the ADDR register.
Pulldown resistor R4 is used to set ADDR = 0. If ADDR =
1 is desired, then set a shunt across pins 1-2 on jumper
JU1. Refer to Table 1 in the MAX20010C/MAX20010D
Output Voltage
Output voltage is adjustable by changing the VID regis-
ters. Refer to Table 9 in the MAX20010C/MAX20010D
IC data sheet. When increasing the output voltage, be
aware of the preset maximum allowed voltage. The maxi-
mum can be adjusted with the VIDMAX register. Refer to
Table 4 in the MAX20010C/MAX20010D IC data sheet.
2
IC data sheet for more details on I C slave address.
Power-Good Output (PGOOD)
The EV kit provides a PGOOD test point to monitor the
status of the device output. PGOOD asserts low when
PCB Layout Recommendations
V
exceeds the PG_OV and PG_UV thresholds. PG_is
SDO
deasserted after a UV/OV propagation delay if the output
voltage is outside the PG_UV/OV thresholds.
Careful PCB layout is critical to performance. Place the
input capacitor (C5) next to the IC (see Figure 2). Route
the sensing signals (RS_) away from the high-speed
switching nodes.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION
QTY
DESCRIPTION
0.22μH inductor
47μF ±10%, 6.3V X7R ceramic
capacitors (1210)
Murata GCM32ER70J476K
L1
1
Coilcraft XAL4020-221ME
0Ω ±1% resistor (0402)
100Ω ±1% resistor (0402)
1kΩ ±1% resistors (0402)
100kΩ ±1% resistor (0402)
10kΩ ±5% resistor (0402)
100Ω ±5% resistor (0402)
C1–C3
C4
3
0
1
R1
R2
1
1
5
1
1
1
Not installed, ceramic capacitors
10μF ±10%, 16V X7R ceramic
capacitor (1206)
TDK C3216X7R1C106K
R3, R6–R9
R4
C5
R5
4.7μF ±10%, 16V X7R ceramic
capacitor (0805)
Murata GCM21BR71C475K
R10
C6
C7
1
1
Automotive step-down converter
(20 TQFN-EP*)
Maxim MAX20010DATPN/V+
U1
1
68μF ±20%, 10V, aluminum
electrolytic capacitor
Murata ECASD61A686M015K00
0.25in U-shaped wire loop, 20G
plated solid copper
—
—
—
1
1
1
1μF ±10%, 50V X7R ceramic
capacitor (0805)
TDK C2012X7R1H105K
Shunts
C8
J1
1
1
PCB: MAX20010 EVALUATION
KIT
20-pin (2 x 10) right-angle
receptacle, 0.1in
*EP = Exposed pad.
/V denotes an automotive qualified part
JU1, JU2
JU3
2
1
3-pin headers, 2.54mm
2-pin header, 2.54mm
Maxim Integrated
│ 2
www.maximintegrated.com
Evaluates: MAX20010C, MAX20010D
MAX20010 Evaluation Kit
P V D D
P G
E N
P V D D
P V D D
S D A
S C L
A D D R
Figure 1. MAX20010 EV Kit Schematic
Maxim Integrated
│ 3
www.maximintegrated.com
Evaluates: MAX20010C, MAX20010D
MAX20010 Evaluation Kit
Figure 2. MAX20010 EV Kit Component Placement Guide—Component Side
Figure 3. MAX20010 EV Kit PCB Layout—Component Side
Figure 4. MAX20010 EV Kit PCB Layout—Layer 2
Maxim Integrated
│ 4
www.maximintegrated.com
Evaluates: MAX20010C, MAX20010D
MAX20010 Evaluation Kit
Figure 5. MAX20010 EV Kit PCB Layout—Layer 3
Figure 6. MAX20010 EV Kit PCB Layout—Solder Side
Ordering Information
PART
TYPE
MAX20010EVKIT#
EV Kit
#Denotes RoHS compliant.
Maxim Integrated
│ 5
www.maximintegrated.com
Evaluates: MAX20010C, MAX20010D
MAX20010 Evaluation Kit
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
0
1
2
4/15
6/15
Initial release
—
3
Updated Figure 1
11/17
Updated the Component List (C1, C2, C3, C4, and U1)
2
Updated references to MAX20010 to indicate that EV kit evaluates MAX20010C and
MAX20010D
3
4
3/19
5/19
1–5
1
Updated General Description and Quick Start
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2017 Maxim Integrated Products, Inc.
│ 6
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