MAX17523 [MAXIM]
4.5V to 36V Operating Voltage Range;
| 型号： | MAX17523 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 4.5V to 36V Operating Voltage Range |
| 文件： | 总10页 (文件大小：1890K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Evaluates: MAX17523
MAX17523 Evaluation Kit
General Description
Quick Start
The MAX17523 evaluation kit (EV kit) is a fully assembled
and tested circuit board that demonstrates the MAX17523
adjustable overcurrent and overvoltage protector. The
EV kit features TVS diode on input and Schottky diode
on output. Input power to the EV kit uses a 4.5V to 36V
input supply.
Required Equipment
● MAX17523 EV kit
● 36V DC power supply
● Multimeter
● USB-A male to USB-B male cable or
The EV kit circuit can be configured to demonstrate the
device’s different current-limit types, adjustable overvoltage,
undervoltage, and current-limit threshold.
5V DC power supply
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation:
Features
● 4.5V to 36V Operating Voltage Range
1) Verify that all jumpers are in their default positions.
● Features TVS Diode and Schottky Diode
2) Connect the USB cable to J1 from a computer or
connect a 5V DC power supply to TP3.
● Evaluates Three Current-Limit Types,
Current-Limit Threshold, OVLO, and UVLO
3) Verify that LED1 is on.
● Proven PCB Layout
4) Connect a 20V DC power supply to IN. Verify that
OUT is 20V.
● Fully Assembled and Tested
5) Increase voltage on the DC power supply and verify
that the OUT voltage goes down and FLAG goes low
when input reaches approximately 33V.
Ordering Information appears at end of data sheet.
6) Decrease voltage on the DC power supply and verify
that OUT goes back and FLAG goes high when the
input reaches approximately 32V.
19-8511; Rev 0; 12/16
Evaluates: MAX17523
MAX17523 Evaluation Kit
Current-Limit Threshold
Detailed Description of Hardware
The EV kit features a jumper (JU1) to select current-limit
threshold. Install a jumper as shown in Table 2 to change
the current-limit threshold.
The MAX17523 EV kit is a fully assembled and tested
circuit board that demonstrates the MAX17523 1A
adjustable overcurrent and overvoltage protector IC in a
16-pin surface-mount TQFN-EP package.
Use the following equation to calculate the current limit:
6100
Using jumper JU1, the EV kit circuit can be configured to
evaluate different current-limit thresholds with a different
resistor on SETI. Using jumpers JU3–JU5, the EV kit circuit
can be configured to evaluate the internal OVLO/UVLO
threshold or external threshold using a resistor-divider.
Using jumpers JU14 and JU15, the EV kit circuit can be
configured to evaluate different current-limit types (autoretry,
latchoff, and continuous). The EV kit also features an LED
to indicate the power for logic pins.
R
( kΩ ) =
SETI
I
(mA)
LIM
UVLO/OVLO Threshold
Use jumpers JU3–JU5 to select UVLO and OVLO threshold.
See Table 3 for jumper settings.
Switch Control
The EV kit features two jumpers (JU6, JU8) to enable or
disable the switch. See Table 4 for jumper settings and
Table 5 for switch status.
Table 1. LED Indicator
Table 2. Current-Limit Threshold (JU1)
JUMPER
SHUNT POSITION
DESCRIPTION
Current limit 0.15A
Current limit 0.5A
LED
NAME
DESCRIPTION
LED1 is on when the V
1-2*
3-4
5-6
7-8
/5V supply
BUS
LED1
POWER
JU1
for the logic pins is powered
Current limit 0.98A
Current limit adjustable
*Default position.
Table 3. UVLO/OVLO Threshold (JU3–JU5)
JUMPER
SHUNT POSITION
Installed*
DESCRIPTION
UVLO connected to ground. Internal UVLO threshold is selected.
JU3
Not installed
Installed*
UVLO not connected to ground. Install JU5 to use external resistors to set UVLO threshold.
OVLO connected to ground. Internal OVLO threshold is selected.
JU4
Not installed
Installed
OVLO not connected to ground. Install JU5 to use external resistors to set OVLO threshold.
Use external resistors to set the OVLO/UVLO threshold.
JU5
Not installed*
Not using external resistors to set the OVLO/UVLO threshold.
*Default position.
Table 4. Switch Control (JU6, JU8)
Table 5. Enable Inputs
SHUNT
POSITION
HVEN
EN
0
SWITCH STATUS
JUMPER
DESCRIPTION
0
0
1
1
On
On
Off
On
HVEN connected to IN
through 100kΩ.
1
1-2
JU6
0
2-3*
HVEN connected to ground.
1
Installed*
EN connected to VBUS.
JU8
Not
EN connected to ground
installed
through 100kΩ.
*Default position.
Maxim Integrated
│ 2
www.maximintegrated.com
Evaluates: MAX17523
MAX17523 Evaluation Kit
Reverse-Current Block Enable
Output Load Capacitor
Use jumper JU9 to enable or disable the reverse-current
flow protection. The reverse-current block is enabled
when RIEN is logic-low. See Table 6 for jumper settings.
Use jumper JU13 to connect output to 330µF capacitor.
See Table 9 for jumper settings.
Current-Limit Type Select
The EV kit features jumpers JU12, JU14, JU15 to select
different current-limit type and sampled time. See Table 7
for jumper settings.
Table 6. Reverse-Current Block Enable
(JU9)
Table 8. Logic Inputs
CLTS2
CLTS1
CURRENT-LIMIT TYPE
Latchoff
SHUNT
POSITION
0
0
1
1
0
1
0
1
JUMPER
DESCRIPTION
Autoretry
Installed
RIEN connected to V
.
BUS
Continuous
JU9
Not
RIEN connected to ground
Continuous
installed*
through 100kΩ.
*Default position.
Table 7. Current-Limit Type Select
(JU12, JU14, JU15)
Table 9. Output Load Capacitor (JU13)
SHUNT
POSITION
JUMPER
DESCRIPTION
SHUNT
JUMPER
DESCRIPTION
POSITION
Installed
OUT connected to C7 and C8.
CLTS_MODE high. CLTS1
and CLTS2 are sampled
continuously.
JU13
Not
installed*
OUT not connected to
C7 and C8.
1-2*
JU12
*Default position.
CLTS_MODE low. CLTS1 and
CLTS2 are sampled only when
2-3
V
- V
< 0.6V.
IN
OUT
1-2*
2-3
CLTS1 high.
CLTS1 low.
CLTS2 high.
CLTS2 low.
JU14
1-2
JU15
2-3*
*Default position.
Maxim Integrated
│ 3
www.maximintegrated.com
Evaluates: MAX17523
MAX17523 Evaluation Kit
Component Suppliers
SUPPLIER
WEBSITE
Bourns, Inc.
www.bourns.com
Fairchild Semiconductor
FCI Electronics Interconnection Solutions
Lite-On, Inc.
www.fairchildsemi.com
www.fciconnect.com
www.us.liteon.com
www.lumex.com
Lumex Inc.
Murata Americas
www.murata.com
Panasonic Corp.
www.panasonic.com
Phoenix Contact, Inc.
STMicroelectronics
TDK Corp.
www.phoenixcontact.com
www.us.st.com
www.component.tdk.com
Note: Indicate that you are using the MAX17523EV when contacting these component suppliers.
Component Information, PCB Layout,
and Schematic
See the following links for component information, PCB
layout diagrams, and schematic.
Ordering Information
PART
TYPE
MAX17523EVKIT#
#Denotes RoHS compliant.
EV Kit
● MAX17523 EV BOM
● MAX17523 EV PCB Layout
● MAX17523 EV Schematics
Maxim Integrated
│ 4
www.maximintegrated.com
Evaluates: MAX17523
MAX17523 Evaluation Kit
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
0
12/16
Initial release
—
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.
2016 Maxim Integrated Products, Inc.
│ 5
TITLE: Bill of Materials ‐ Revision 12/16
DESIGN: max17523_evkit_a
Part Reference
Qty Description
CAPACITOR CER 1UF 25V ±10% X5R 0603
C1
C3
C4
C7
1
1
1
1
CAPACITOR CER 0.47UF 50V ±10% X5R 0603
CAPACITOR CER 1UF 50V ±10% X7R 1206
CAPACITOR RADIAL 330UF 50V ±20%
D1
1 DIODE TVS 12A 36V
D2, D3
2 DIODE 1A 60V
J1
J2, J3
1 USB B‐TYPE CONNECTOR
2 Power Terminals
JU1
1 CONN HEADER 8PINS
6 CONN HEADER 2PINS
4 CONN HEADER 3PINS
1 LED GREEN 1206
JU3‐JU5, JU8, JU9, JU13
JU6, JU12, JU14, JU15
LED1
R1
R2
R6
R7
1 RES 1K 1% 0805 SMD
1 RES 10K 1% 0805 SMD
1 RES 40.2K 1% 0805 SMD
1 RES 12.1K 1% 0805 SMD
1 RES 6.2K 1% 0805 SMD
2 RES 2.2M 5% 0805 SMD
3 RES 100K 1% 0805 SMD
1 RES 4.7K 1% 0805 SMD
1 RES TRIMMER POTENTIOMETER 50K OHM
1 RES 10 1% 0402 SMD
1 WHITE TEST POINT
R8
R9, R11
R13, R14, R17
R15
R16
R18
TP1
TP2, TP4, TP5, TP7
4 BLACK TEST POINT
TP3, TP6, TP8
TP9
3 RED TEST POINT
1 PURPLE TEST POINT
TP10
1 GREEN TEST POINT
TP11
1 GREY TEST POINT
U1
1 IC OVERCURRENT OVERVOLTAGE PROTECTOR (MAX17523ATE+)
CAP RADIAL 330UF 50V ±20%
0
C8
R10, R12
PCB
0 RES 1.47K 1% 0805 SMD
1 PCB: EPCB17523
SILKSCREEN TOP
TOP
BOTTOM
CLHS IN
JU15
CLTS1 IN
JU14
JU12
2
2
2
CLTS2 IN
IN
CLTS_MODE
OUT
TP8
VOUT
OUTPUT POWER
IN
TP6
JU13
D2
STPS1L60A
INPUT POWER
1
2
VIN
J3
DG128-5.0-02P-14
DNI
C8
C7
330UF
R13
100K
D1
36V
J2
HVEN
TP11
RIEN
TP9
DG128-5.0-02P-14
VBUS
JU6
JU9
TP7
CLTS2
CLTS1
CLHS
CLTS_MODE
GND
2
5
6
7
8
16
15
2
1
HVEN
IN1
RIEN
OUT2
VOUT
VIN
VIN
1
GND
R14
100K
JU5
TP5
2
C3
0.47UF
C4
1UF
U1
MAX17523
14
13
IN2
OUT1
EN
R9
2.2M
R11
2.2M
OVLO
TP10
EN
UVLO
SETI
GND
FLAG
EP
DNI
R10
DNI
R12
R17
100K
JU8
JU4
VBUS
R18
10
VBUS
5V
VBUS
FLAG
TP1
TP3
JU3
MTHOLE
X1
MTHOLE
X2
MTHOLE
X3
MTHOLE
X4
J1
R2
10K
61729-0010BLF
D3
TP4
1
2
3
4
C
A
VBUS
D-
JU1
GND
B160-13-F
C1
1UF
D+
R1
1K
GND
S1 S2
R16
502K
R7
12.1K
TP2
LED1
POWER
R6
40.2K
R8
6.2K
GND
R15
4.7K
相关型号：
MAX17524ATJ+
4.5V to 60V, 3A, Dual-Output, High-Efficiency,Synchronous Step-Down DC-DC Converter
MAXIM
MAX17526AATP+T
5.5V to 60V, 6A Current-Limiter with OV, UV, Reverse Protection, and Power Limit
MAXIM
MAX17528GTJ+T
Switching Regulator/Controller, Current-mode, 600kHz Switching Freq-Max, BICMOS, PQCC32,
MAXIM
©2020 ICPDF网 联系我们和版权申明