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36V, 1A Octal Integrated Serial-Controlled Solenoid and Motor Driver

Industry’s Only Octal Solenoid Driver with Individual Half Bridge Control Saves More than 50% Power

产品详情

主要特征

Parametric specs for DC Motor Drivers
No. of Drivers 8
Peak Motor Current (A) 1.5
VSUPPLY (V) (min) 4.5
VSUPPLY (V) (max) 36
Total RON (mΩ) (typ) 200
ISUPPLY (mA) (typ) 2.5
Direction Control Independent
Current Regulation Internal
Internal CR Reference Yes
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN-CU/32
Budgetary
Price (See Notes)
3.53
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参量

Parametric specs for DC Motor Drivers
No. of Drivers 8
Peak Motor Current (A) 1.5
VSUPPLY (V) (min) 4.5
VSUPPLY (V) (max) 36
Total RON (mΩ) (typ) 200
ISUPPLY (mA) (typ) 2.5
Direction Control Independent
Current Regulation Internal
Internal CR Reference Yes
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN-CU/32
Budgetary
Price (See Notes)
3.53

主要特征

  • Eight Half-Bridges Up To +36V
  • High Performances:
    • Low On-Resistance: RDS(on): 200 mΩ typical (TA = +25°C)
    • Continuous Output Current Up To 1ARMS per Half- Bridge (TA = +25°C)
    • Current-Drive Regulation (CDR)
    • Voltage-Drive Regulation (VDR)
    • Integrated Lossless Current Sensing (ICS)
  • High Flexibility:
    • Independent Programmable HIT and HOLD Currents for Each Channel (IHIT, IHOLD)
    • Independent Programmable HIT Current Timing for Each Channel (tHIT)
    • Full-Bridge Configuration Supported
    • Parallel Mode Supported
  • High Speed Serial Interface (SPI)
    • 5MHz Daisy-Chain Configuration
    • 10MHz without Daisy Chain
  • Protections and Diagnostic
    • Overcurrent Protection (OCP)
    • Open-Load Detection (OL)
    • Detection of Plunger Movement (DPM)
    • Undervoltage Lockout (UVLO)
    • HIT Current Not Reached (HHF)
    • Thermal Shutdown T = +145°C (TSD)
    • Fault Registers for Diagnostic purposes
  • Integration:
    • 32 TQFN 5mm x 5mm Package

应用/用途

  • Relays Driver
  • Solenoid, Valves, Electromagnetic Drivers
  • Generic Low-Side and High-Side Switch Applications
  • Latched (Bi-Stable) Solenoid Valve Drivers
  • Brushed DC Motor Driver

描述

The MAX22200 is an octal 36V serial-controlled solenoid driver. Each channel features a low impedance (200mΩ typ) push-pull output stage with sink-and-source driving capability and up to 1ARMS driving current. A serial interface (SPI) that also supports daisy-chain configurations is provided to individually control each channel.

The device half-bridges can be configured as low-side drivers or as high-side drivers. Moreover, pairs of halfbridges can be paralleled to double the driving current or can be configured as full-bridges to drive up to four latched valves (bi-stable valves) or four brushed DC motors.

Two control methods are supported: voltage drive regulation (VDR) and current drive regulation (CDR). In VDR, the device outputs a PWM voltage in which the duty cycle is programmed using SPI. For a given supply voltage and solenoid resistor, the output current is proportional to the programmed duty cycle. In CDR, an internal integrated lossless current sensing (ICS) circuit senses the output current and compares it with an internal programmable reference current.

For optimal power management in solenoid drive applications, the excitation drive level (IHIT), the hold drive level (IHOLD), and the excitation drive time (tHIT) can be individually configured for each channel.

The MAX22200 features a full set of protections and diagnostic functions. This includes overcurrent protection (OCP), thermal shutdown (TSD), undervoltage Lockout (UVLO), open-load detection (OL), and detection of plunger movement (DPM). A fault indication pin (active-low FAULT) signals fault events and diagnostic information is stored in the FAULT register.

Due to the flexibility of use, the serial interface control, the high efficiency, and the small package, the MAX22200 is particularly well-suited for solenoid driver applications (valve control, relays control etc.) in which low power consumption and high level of integration are required.

The MAX22200 is available in a compact 5mm x 5mm, 32-pin TQFN package and operates over the temperature -40°C to +85°C range.

简化框图

MAX22200: Simplified Block Diagram MAX22200: Simplified Block Diagram Zoom icon

Technical Docs

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在Maxim的知识库中搜索技术问题的答案

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Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心