maxim integrated MAX15162AWE Evaluation Kit User Guide

: June 13, 2024
: maxim integrated

Table of Contents

maxim integrated MAX15162AWE Evaluation Kit User Guide
General Description
Features
Quick Start
Required Equipment
Procedure

maxim integrated MAX15162AWE Evaluation Kit User Guide

General Description

The MAX15162AWE evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains all components necessary to evaluate the MAX15162AWE+ and MAX15162AAWE+ dual-channel circuit breaker IC for power amplifier system. The IC is in an extremely compact, 16-bump, 2mm x 2mm WLP. The EV kit is powered from an 8V to 60V DC supply and can be configured as two independent single-channel or one parallel dual-channel circuit breaker. The EV kit provides multilevel overcurrent limit protection and pin-strap programmable current-limit level up to 1.5A for each channel.
The EV kit demonstrates the full functionality of the
MAX15162AWE+/MAX15162AAWE+, such as IN-OUT
short protection during startup, inrush current control, input undervoltage lockout (UVLO), programmable overcurrent shutdown delay time and fast large overcurrent protection. The EV kit also features current monitoring/reporting with ±3% accuracy (0.8A~1.5A) on individual channel and overcurrent/overtemperature fault status indication.
Warning: The EV kit is designed to operate with high voltages. Dangerous voltages are present on this EV kit and on equipment connected to it. Users who power up this EV kit or power the sources connected to it must be careful to follow safety procedures appropriately to work with high-voltage electrical equipment.
Under severe fault or failure conditions, this EV kit may dissipate large amounts of power, which could result in the mechanical ejection of a component or of component debris at high velocity. Operate this kit with care to avoid possible personal injury.

Features

8V to 60V Wide Input Voltage Range
Integrated Dual-Power MOSFET with Low Turn-on Resistance 150mΩ
Dual-Channel Independent or Parallel Mode Configuration
Undervoltage Lockout
Enable Input for Individual Channel
Constant Power Control at Startup
Startup Watchdog Timer
Startup IN-to-OUT Short Protection
Overcurrent and Overtemperature Fault StatusIndication on Individual Channel
±3% Accuracy Current Reporting on IndividualChannel
Multilevel Overcurrent Limit Protection
Programmable Current-Limit Level
Programmable Overcurrent Shutdown Delay Time
Latch in a Fault Event (MAX15162AWE+)
Auto-Retry in a Fault Event with Programmable Auto-Retry Time (MAX15162AAWE+)
Built-in Thermal Shutdown Protection
Proven PCB Layout
Fully Assembled and Tested

Ordering Information appears at end of data sheet.

Quick Start

Required Equipment

MAX15162AWE EV kit
8V to 60V, 5A capable DC power supply
3V DC power supply
Two loads capable of supporting 60V and sinking 3A
Digital voltmeters
100MHz dual-trace oscilloscope

Procedure

The EV kit is fully assembled and tested. Follow the steps below to verify board operation:

Caution: Do not turn on the power supply until all connections are completed.

Configure IMONx and ENx pins with the power supply off (x = 1, 2): 2. Independent Mode: Leave R24 uninstalled to disconnect IMON1 and IMON2; R23 and R19 con- figure OC limit of channel 1 and channel 2 sepa- Leave R40 uninstalled to disconnect EN1 and EN2. Pull up pin 1 of J8 to enable channel 1, pull up pin 1 of J4 to enable channel 2. Leave J5 open. 3. Parallel Mode: Install R24 = 0Ω to tie IMON1 and IMON2 The parallel of R19 and R23 set up the total OC limit of two channels. Install R40 = 0Ω to tie EN1 and EN2 together. Pull up pin 1 of J4 or J8 to enable both channels. Install a shunt at J5 to short AŽRT1 and AŽRT2.
Connect electronic loads to the output:
1. Independent Mode: Connect two 1A electronic loads to OUT1+/OUT1- and OUT2+/OUT2- banana jack connectors Disable the load.
2. Parallel Mode: Solder R33 (0Ω) to connect OUT1+ and OUT2+. Connect one 2A electronic load to OUT1+ and OUT1- banana jack connectors and disable the
Connect the external DC power supply to VIN and GND banana jack Turn on VIN at 0V and ramp it up to 8V or higher.
Using voltmeters, verify that the external 3.3V power sup- ply provides EN = 3.3V and VOUT = VIN (VIN – VOUT < 700mV) across OUT1+ (OUT2+) and OUT1- (OUT2-).

Detailed Description of Hardware

The MAX15162AWE EV kit is a fully assembled and tested board to evaluate the performance of the MAX15162AWE+/ MAX15162AAWE+ integrated dual-channel circuit breaker. With the wide range of input voltage (from 8V to 60V), inrush current control, and programmable overcurrent protection limit level, the MAX15162AWE+/ MAX15162AAWE+ is well suited for telecommunication power amplifier systems. The EV kit features components and circuits that demonstrate the full functionality of the MAX15162AWE+/MAX15162AAWE+ in both independent mode and parallel mode.

Mode Configuration

The MAX15162AWE+/MAX15162AAWE+ devices detect IMONx (x = 1, 2) pins connection during initialization process and determines the operation mode. To config- ure the device in independent mode on the EV kit, leave R24 uninstalled. To configure the device in parallel mode, install R24 = 0Ω to tie IMONx together. See Table 1 for operating mode settings.

Enable Input (ENx)

The dual channels of the MAX15162AWE+/ MAX15162AAWE+ can be individually enabled or disabled through the ENx (x = 1, 2) by driving it above or below the enable threshold voltage. The EV kit allows the ENx pins to be pulled up by an external DC bias power supply.

Table 1. Operating Mode Setting

CONFIG RESISTOR| SHUNT POSITION| ****

FUNCTION

---|---|---

R40

| 0Ω| Parallel mode: tie EN1 and EN2
Open| Independent mode

R24

| ****

0Ω

| Parallel mode: tie IMON1 and IMON2
Open| Independent mode

R33

| ****

0Ω

| Parallel mode: tie OUT1 and OUT2
Open| Independent mode

Current-Limit Thresholds and Current Monitor (IMONx)

The EV kit configures overcurrent limit threshold through the IMONx pins for each channel. Connect a resistor between IMONx and GND to program the overcurrent limit threshold in the device. In independent mode, configure R23 and R19 individually. The following equation is used to calculate the current- limit setting resistor:
RIMON (Ω) = 1.125 x CIRATIO/ILIM (A)
In parallel mode, connect IMON1 and IMON2 pins together with one resistor to GND. Use the following equation to calculate the current-limit setting resistor:
RIMON (Ω) = 1.125 x CIRATIO/ILIM (A)/2
where ILIM is the desired current limit, and CIRATIO is the ratio of current mirror. See Table 2 and Table 3 for current-limit resistor settings in independent mode and parallel mode.
At the same time, the voltage on the IMONx pin monitors the OUT current in each channel with the following relationship:
IOUT (A) = VIMON (V) x CIRATIO/RIMON (Ω)
In independent mode, IOUT in above equation represents the current from individual channel. In parallel mode, while connecting the IMON1 and IMON2 pins together, IOUT represents the sum of current of two channels.

Overcurrent Protection Delay (RDLY)

The EV kit configures the overcurrent protection response delay time by connecting DLY pin and GND through resis- tor R14, as shown in Table 4. When the current through the device reaches the overcurrent limit threshold, the internal delay timer begins to count. If the current drops back below the overcurrent limit within the delay time
TDLY, the MOSFET remains on. If the current stays higher than the overcurrent limit, the MOSFET turns off after TDLY elapses.

Fault Status Indication (AǐRTx)

The EV kit indicates fault status through the ALRTB pin in each channel. ALRTB is pulled low when the following faults occur:

MOSFET is not turned
Input voltage drops to UVLO
Overcurrent limit is
Overtemperature level is
Startup watchdog times
IMONx pins are

Table 2. Overcurrent Limit Resistor Selection in Independent Mode

CONFIG RESISTOR| RESISTOR VALUE

(kΩ)

| OVERCURRENT LIMIT/ CHANNEL (A)| FAST OCP LIMIT/ CHANNEL (A)
---|---|---|---

R19, R23

| 9.09| 0.50| 0.66
6.04| 0.75| 0.99
4.53| 0.99| 1.32
3.01| 1.50| 1.99

Table 3. Overcurrent Limit Resistor Selection in Parallel Mode

CONFIG RESISTOR| RESISTOR VALUE

(kΩ)

| OVERCURRENT LIMIT/ CHANNEL (A)| FAST OCP LIMIT/ CHANNEL (A)
---|---|---|---

R19, R23

| 4.53| 0.50| 0.66
3.01| 0.75| 1.00
2.26| 0.99| 1.33
1.50| 1.50| 2.00

Table 4. DLY Pin-Strap Configuration

R14 (kΩ)	DELAY TIME	AUTORETRY TIME
0	12µs	0.6ms
27	100µs	6ms
47	1ms	60ms
68	10ms	600ms

| | SUPPLIER| WEBSITE
---|---
Analog Devices| www.analog.com
CoilCraft| www.coilcraft.com
Comchip| www.comchiptech.com
Diodes Incorporated| www.diodes.com
Emerson Network Power| www.vertivco.com
Fairchild Semiconductor| www.onsemi.com
Kemet| www.ir.kemet.com
Keystone| www.keyelco.com
Lite-On Electronics| www.us.liteon.com
Murata| www.murata.com
On Semiconductor| www.onsemi.com
Panasonic| www.panasonic.com
Pulse Electronics| www.pulseelectronics.com
Renesas Technology Group| www.renesas.com
Samsung Electronics| www.samsung.com
Stackpole Electronics| www.seielect.com
Sumida| www.sumida.com
Taiyo Yuden| www.yuden.co.jp
TDK| www.us.tdk.com
TE Connectivity| www.te.com
Texas Instruments| www.ti.com
Vishay Dale| www.vishay.com
Würth Elektronik| www.we-online.com

Component Suppliers Ordering Information

PART TYPE

MAX15162WAEVKIT# MAX15162 WLP (Auto-retry)
MAX15162WLEVKIT# MAX15162 WLP (Latched off)

#Denotes RoHS compliant.

MAX15162AWE EV Kit Schematic

__

MAX15162AWE EV Kit PCB Layout Diagrams

__

MAX15162AWE EV Kit PCB Layout Diagrams (continued)

__

MAX15162AWE EV Kit PCB Layout Diagrams (continued)

__

MAX15162AWE EV Kit PCB Layout Diagrams (continued)

_

MAX15162AWE EV Kit PCB Layout Diagrams (continued)

__

MAX15162AWE EV Kit PCB Layout Diagrams (continued)

__

__Note: Indicate that you are using the MAX15162AWE when contacting these component suppliers

MAX15162 WLP EV Kit Bill of Materials

PART	QTY	DESCRIPTION
C1	1	47µF ±20%, 100V; aluminum electrolytic capacitor (Case H13) Panasonic

EEE-FK2A470AQ
C2, C5, C6, C10-C14| ****

8

| ****

4.7µF ±10%, 100V X7S ceramic capacitor (1210) TDK C3225X7S2A475K200AB

C3| 1| 1µF ±10%, 100V X7R ceramic capacitor (1206) Murata GRM31CR72A105KA01
GND, OUT1+, OUT1-, OUT2+, OUT2-, VIN| ****

6

| ****

Soft Drawn Bus TYPE-S, 20AWG, Weico Wire, 9020 BUSS

IMON1, IMON2| 2| Test Point; PIN DIA = 0.1 inch; Total Length = 0.3 inch; Board Hole = 0.04 inch; RED; Keystone 5000
J4, J5, J8| 3| Breakaway Connector, Male, Through Hole, 2 Pins, Sullins, PEC03SAAN
R14| 1| 68kΩ ±1% Resistor (0402) Vishay CRCW040268K0FK
R19, R23| 2| 3.01kΩ ±1% Resistor (0402) Vishay CRCW04023K01FK
U1| 1| Integrated Dual-Channel Circuit Breaker, WLP-16, MAX15162/MAX15162AAWE+
PCB| 1| PCB:MAX15162AWE+/MAX15162AAWE+
C4, C7, C8, C15, C16| DNP| 1µF ±10%, 100V X7R ceramic capacitor (1206) Murata GRM31CR72A105KA01
R24, R40| DNP| 0Ω ±0% Resistor (0402) Vishay CRCW04020000Z0EDHP
R33| DNP| 0Ω ±0% Resistor (2512) Vishay CRCW25120000Z0EGHP

Revision History

REVISION NUMBER| REVISION DATE| DESCRIPTION| PAGES CHANGED
---|---|---|---
0| 11/19| Initial release| —
1| 10/20| Change to Rev B EV kit| 2–12
2| 10/21| Changed title to indicate WLP| All
3| 11/22| Updated to match hardware| 3, 5

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.