Datasheet > MAX17640B

MAX17640B

更新时间： 2024-09-27 02:52:03

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
17页	1698K
描述
MAX17640 Converters in Application

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MAX17640B 数据手册

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Evaluate: MAX17640

MAX17640A/MAX17640B/

Converters in Application

MAX17640C Evaluation Kits

General Description

Quick Start

The MAX17640A/MAX17640B/MAX17640C evaluation

kits (EV kits) provide proven designs to evaluate the per-

formance of the MAX17640A/MAX17640B/MAX17640C

high-voltage, high-eﬃciency, synchronous step-down

DC-DC converters. The MAX17640A converter operates

over a 5V to 48V input range and can deliver up to 400mA

at a ﬁxed 3.3V output. The MAX17640B converter oper-

ates over a 7V to 60V input range and can deliver up to

400mA at a ﬁxed 5V output. The MAX17640C converter

operates over a 15V to 60V input range and can deliver

up to 400mA at an adjustable 12V output.

Required Equipment

● One 60V, 400mA DC power supply

● Digital multimeters (DMM)

● Load resistors capable of sinking up to 400mA

(8.25Ω for MAX17640A, 12.5Ω for MAX17640B,

and 30Ω for MAX17640C)

Equipment Setup and Procedure

The EV kits are fully assembled and tested. Follow the

steps to verify and test individual converter operation:

Caution: Do not turn on power supply until all

connections are completed.

The EV kits feature an adjustable input undervoltage-

lockout, open-drain RESET, overcurrent protection,

selectable mode of operation, and thermal shutdown.

Refer to the MAX17640 converter data sheet for a

complete description of the part that should be read in

conjunction with this data sheet before operating these

EV kits.

1) Disable the power supply and set the input power

supply at a valid input voltage.

2) Connect the positive terminal and negative terminal

of the power supply to the VIN pad and its adjacent

PGND pad of the converter under evaluation.

3) Connect the positive terminal of the 400mA (max)

load to the VOUT pad and the negative terminal to the

nearest PGND pad of the corresponding converter.

Features

● Operates up to 60V Input Supply

● Fixed 5V, Fixed 3.3V, and Adjustable 12V Application

4) Connect the DMM across the VOUT pad and the

Circuits

nearest PGND pad.

● Up to 400mA Load Current

5) Verify that the shunts are not installed across pins on

jumper JU101 for MAX17640A, JU201 for MAX17640B

and, JU301 for MAX17640C. See Table 1 for details.

● 500kHz Fixed Switching Frequency

● Enable/UVLO Input, Resistor-Programmable UVLO

Threshold

6) Turn on the input power supply.

● Selectable PWM and PFM Modes of Operation

● Open-Drain RESET Output

7) Verify that the DMMs display the expected terminal

voltages with respect to GND.

● Overcurrent and Overtemperature Protection

● Proven PCB Layout

● Fully Assembled and Tested

● Complies with CISPR32(EN55032)

Class B Conducted and Radiated Emissions

Ordering Information appears at end of data sheet.

319-100682; Rev 1; 3/21

12 3 4 5 6 7...17

中文翻译

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与MAX17640B相关器件

型号	品牌	获取价格	描述	数据表
MAX17640C	MAXIM	获取价格	MAX17640 Converters in Application
MAX17643	ADI	获取价格	4.5V–60V、2A、高效、同步降压DC-DC转换器，带内部补偿
MAX17644	ADI	获取价格	4.5V to 36V, 2.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter
MAX17644A	MAXIM	获取价格	MAX17644 in 3.3V and 5V Output-Voltage Applications
MAX17644AEVKIT	MAXIM	获取价格	MAX17644 in 3.3V and 5V Output-Voltage Applications
MAX17644B	MAXIM	获取价格	MAX17644 in 3.3V and 5V Output-Voltage Applications
MAX17644C	MAXIM	获取价格	MAX17644 in 3.3V and 5V Output-Voltage Applications
MAX17645	ADI	获取价格	4.5V至36V、1A、高效率、同步降压DC-DC转换器
MAX1765	MAXIM	获取价格	800mA, Low-Noise, Step-Up DC-DC Converter with 500mA Linear Regulator
MAX1765	ADI	获取价格	800mA、低噪声、升压型DC-DC转换器，带有500mA线性稳压器

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