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MAX14900E

更新时间： 2024-09-29 14:58:07
品牌 Logo 应用领域
亚德诺 - ADI 开关
页数 文件大小 规格书
31页 1324K
描述
八通道、高速、工业高边开关

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中文翻译

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MAX14900E 数据手册

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EVALUATION KIT AVAILABLE  
MAX14900E  
Octal, High-Speed, Industrial, High-Side Switch  
General Description  
Benefits and Features  
● Low Power for High-Density Modules  
The MAX14900E is an octal power switch that  
features per-channel configuration for high-side or push-  
pull operation. Low propagation delay, high-rate load-  
switching makes the device suitable for next-generation  
high-speed PLC systems. Each high-side switch sources  
850mA continuous current with a low 165mΩ (max)  
• 3mA (max) Total Supply Current  
• 165mΩ (max) High-Side R  
at +125°C  
ON  
● Fast Switching Ideal for Accurate, High-Speed  
Control Systems  
• 2µs Propagation Delays (High-Side Mode)  
• 0.8µs Propagation Delays (Push-Pull Mode)  
• 100kHz (max) Push-Pull Mode Switching Rate  
on-resistance at 500mA at T = +125°C. The high-side  
A
switches feature 2µs (max) input-to-output propagation  
delay when driving resistive loads. Long cables can be  
driven with switching rates of up to 100kHz for PWM/PPO  
control in push-pull operation. Multiple high-side switches  
can be connected in parallel to achieve higher drive  
currents. The device features a wide supply input range  
of 10V to 36V.  
● Extensive Fault Feedback Eases Maintenance and  
Reduces Installation Time  
• Global and Per-Channel Diagnostics  
• Open Load/Wire Detection  
• Thermal Shutdown Fault Indication  
• Output Logic State Feedback  
• Undervoltage Lockout  
The MAX14900E is configured, monitored, and driven by  
an SPI and/or parallel interface. In parallel mode, eight  
logic inputs directly control the outputs and the serial  
interface can be used for configuration/monitoring. Serial  
mode utilizes the serial interface for both setting and  
configuration, and features CRC error detection to ensure  
robust SPI communication.  
● Small Packages with Serial Interface Allows Making  
High-Density Modules  
• Daisy-Chainable SPI Minimizes Isolation Cost  
• 7mm x 7mm, 48-Pin QFN and TQFN Packages  
Current limiting and per-channel thermal shutdown  
protect each switch/driver. The device features a global  
diagnostics output as well as per-channel diagnostics and  
monitoring through the serial interface.  
Functional Diagram  
V
L
V
5
V
DD  
V
V
V
DD  
DD  
DD  
V
L
V
5
V
DD  
FLTR  
The MAX14900E is available in a 48-pin (7mm x 7mm)  
QFN-EP or standard 48-pin TQFN-EP package, and is  
specified over the -40°C to +125°C temperature range.  
O8  
O7  
O6  
O5  
O4  
O3  
PUSHPL  
UV MONITOR  
DRIVE + MONITOR  
EN  
O8  
O7  
V
DD  
V
DD  
V
DD  
OL/IN1  
IN2  
CRC/IN3  
DRIVE + MONITOR  
EN  
CERR/IN4  
IN5  
MAX14900E  
PARALLEL  
INTERFACE  
Applications  
DRIVE + MONITOR  
EN  
O6  
O5  
IN6  
● Programmable Logic Controllers  
● High-Density Digital Output Modules  
● Motor Controllers  
CNFG/IN7  
S16/IN8  
DRIVE + MONITOR  
EN  
CONFIG  
AND  
SETTING  
SRIAL  
DRIVE + MONITOR  
EN  
O4  
O3  
CS  
● PWM/PPO Control  
CLK  
SERIAL  
INTERFACE  
DRIVE + MONITOR  
EN  
SDI  
V
DD  
SDO  
O2  
O1  
O2  
O1  
DRIVE + MONITOR  
DRIVE + MONITOR  
PGND  
V
DD  
OVERLOAD  
OVERTEMP  
OPEN LOAD  
Ordering Information and Typical Operating Circuit appear  
at end of data sheet.  
FAULT  
DIAGNOSTICS  
REXT  
EN  
AGND  
19-6563; Rev 4; 4/15  
1234567...31

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