参数资料
| 型号： | MAX9921EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/6页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX9921 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 接口，传感器，霍尔效应 |
| 已用 IC / 零件： | MAX9921 |
| 已供物品： | 板 |
MAX9921 Evaluation Kit
Quick Start
Recommended Equipment
Table 1. MAX9921 EV KIT Jumper
Descriptions (JU1-JU7)
Before beginning, the following equipment is needed:
? MAX9921 EV kit
? One 6V to 18V DC power supply
JUMPER
POSITION
1-2
DESCRIPTION
Emulates Hall input shorted to
battery
?
A magnet
Procedure
JU1, JU2
1-3*
Demonstrates normal operation
with on-board Hall sensor
The MAX9921 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
1-4
1-5
Emulates Hall input shorted to GND
Evaluates other Hall sensors
Caution: Do not turn on the power supply until all
connections are made.
1) Verify that all jumpers are in the default positions, as
shown in Table 1.
2) Connect the DC power supply between the
MAX9921 EV kit’s VBAT and GND pads.
3) Turn on the DC power supply.
4) Move the magnet in front of S1 and S2. Observe the
light change of the OUT1 and OUT2 LEDs on the
EV kit board.
Detailed Description of Hardware
The MAX9921 EV kit board provides a proven layout for
evaluating the MAX9921. The EV kit comes with
MAX9921AUB+ installed.
JU3
JU4
JU5
JU6
JU7
Open
1-2*
Open
1-2
Open*
1-2*
Open
1-2*
Open
1-2*
Open
Emulates the open-circuit failure
Outputs enabled
Outputs disabled
Outputs reflect diagnostic
information
Outputs reflect Hall sensor
information
OUT1 with 100k Ω pullup
OUT1 without pullup
OUT2 with 100k Ω pullup
OUT2 without pullup
ERR with 100k Ω pullup
ERR without pullup
External Power Supply
The MAX9921 is powered by a user-supplied 6V to
18V DC power supply connecting between VBAT and
GND. The MAX9921 EV kit board is not reverse-
battery protected.
During the emulation of the Hall input shorted to GND,
the MAX9921 will draw substantial shorting current until
the MAX9921 turns off the shorted input. The shorting
current can reach a peak of 60mA to 70mA and the
entire event may last 0.5μs. Many common regulated-
lab power supplies will overshoot in response to a
large, short-term current pulse. When evaluating the
short-to-GND fault, an unregulated supply is recom-
mended, such as a wet-cell battery.
Hall-Effect Sensors and Related Jumpers
The MAX9921 EV kit has two Hall-effect sensors
(A1140EUA). JU1 and JU2 provide a convenient way to
evaluate the MAX9921 with different Hall-effect sensors
and emulate different failure conditions, as shown in
Table 1.
*Default position.
DIAG and OE Configuration
The MAX9921 EV kit uses JU3 and JU4 to configure the
MAX9921 DIAG and OE inputs, as shown in Table 1.
Refer to the MAX9921 IC data sheet for a detailed
description of the MAX9921 diagnostic information.
Outputs, Related LEDs, and Jumpers
The MAX9921 EV kit has three outputs: OUT1, OUT2,
and ERR . Each output has an LED to indicate its cur-
rent status. All three outputs can be individually pulled
up with a 100k Ω resistor, as shown in Table 1. Refer to
the MAX9921 IC data sheet for a detailed description of
OUT1, OUT2, and ERR outputs.
2
_______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
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| MAX9959EVKIT+ | EVAL KIT MAX9959 |
| MAX9979EVKIT+ | EVAL KIT MAX9979 |
| MAXFILTERBRD+ | BOARD EVAL MAX7408/7415/418-7425 |
| MAXQSERIALJTAG-KIT | MAXQ SERIAL/JTAG EVAL BOARD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9921EVKIT+ | 功能描述:界面开发工具 MAX9921 Eval Kit RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| MAX9922ABT+T | 制造商:Maxim Integrated Products 功能描述:ULTRA-PRECISION, HIGH-SIDE CURRENT-SENSE AMPLIFIERS - Tape and Reel |
| MAX9922AUB+ | 功能描述:电流灵敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9922AUB+T | 功能描述:电流灵敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9922EUB+ | 功能描述:电流灵敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
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