Datasheet > MAX22208

MAX22208

更新时间： 2024-10-04 15:18:59

品牌	Logo	应用领域
亚德诺 - ADI		驱动驱动器
页数	文件大小	规格书
19页	317K
描述
具有集成电流检测功能的 65V、3.8A 四路 H 半桥驱动器

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中文翻译

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MAX22208 数据手册

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65V, 3.8A Quad Half H-Bridge Drivers with

Integrated Current Sense

MAX22208

General Description

Benefits and Features

The MAX22208 provides four individually controllable

● Four Independent Half H-Bridge Drivers

65V, 3.8A half H-bridge drivers. It can be used to drive

• 65V Maximum Operating Voltage

MAX

four solenoids, two brushed DC motors, one single step-

per motor, or a combination of different loads.

• 0.3Ω (typ) R

+25°C

(High Side + Low Side) at T =

ON A

• Fully Independent Half-Bridge Control

The power FETs have very low impedance, resulting in

high driving efficiency and low heat dissipation. The typical

● Current Rating per H-Bridge (T = +25°C):

total R

(high side plus low side) is 0.3Ω (typ).

• I

= 3.8A (Impulse Current for Driving Capacitive

MAX

Each half bridge can be individually pulse-width modula-

tion (PWM)-controlled with two logic inputs (DIN_, EN_).

Loads)

• I

= 2A

RMS

The MAX22208 integrates non-dissipative current sens-

ing, which eliminates the bulky external power resistors

normally required for this function, resulting in a dramatic

space and power saving compared with mainstream appli-

cations based on the external sense resistor.

● Integrated Current Sensing (ICS) Eliminates External

Bulky Resistors and Improves Efficiency

● Current-Sense Output Monitor

● Fault Indicator Pin (FAULT)

• Overcurrent Protection for Each Individual Channel

(OCP)

• Undervoltage Lockout (UVLO)

A current proportional to the internally-sensed load current

is output to the external current-monitor pins (ISEN_). By

connecting an external resistor to these pins, a voltage

proportional to the motor current is generated. The voltage

drop across the external resistors can be input into the

controller ADC whenever the control algorithm requires

the current/torque information.

• Thermal Shutdown T = +155°C

● 5mm x 7mm, 38-Pin TQFN and 4.4mm x 9.7mm,

38-Pin TSSOP Packages

The maximum output current per half H-bridge is I

MAX

3.8A and is limited by the overcurrent protection (OCP) cir-

cuit. This current can be driven for very short transients

and aims to effectively drive small capacitive loads.

The maximum RMS current per H-bridge is I

= 2A.

RMS

Since this current is limited by thermal considerations, the

actual maximum RMS current depends on the thermal

characteristic of the application (PCB ground planes,

heatsinks, forced air ventilation, etc.).

The MAX22208 features overcurrent protection (OCP),

thermal shutdown (TSD), and undervoltage lockout (UV-

LO). An active-low, open-drain FAULT pin is activated

every time a fault condition is detected.

During TSD and UVLO, the driver outputs are three-stated

until normal operating conditions are restored.

The MAX22208 is available in a small, 5mm x 7mm,

38-pin TQFN and 4.4mm x 9.7mm, 38-pin TSSOP pack-

age.

Applications

● Brushed DC Motor Driver

● Stepper Motor Driver

● Solenoid Driver

● Latched Valves

19-101619; Rev 0; 8/23

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...19

中文翻译

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与MAX22208相关器件

型号	品牌	获取价格	描述	数据表
MAX22210	ADI	获取价格	36V, 3.8A Stepper Motor Driver with Integrated Current Sense and 128 Microstep Indexer
MAX22211	ADI	获取价格	用于两个有刷或单个步进电机驱动的36V、3.8A双H桥
MAX22213	ADI	获取价格	具有集成电流检测功能的 36V、3.8A 四路 H 半桥驱动器
MAX22216	ADI	获取价格	具有高级诊断功能的四路智能串行控制电磁阀和电机驱动器
MAX2223	ADI	获取价格	超宽带、直接转换、L频段卫星调谐器
MAX22245	MAXIM	获取价格	Broad Range of Data Transfer Rates (from DC to 200Mbps)
MAX22245	ADI	获取价格	增强型、快速、低功耗、双通道数字隔离器
MAX22246	MAXIM	获取价格	Broad Range of Data Transfer Rates (from DC to 200Mbps)
MAX22246	ADI	获取价格	增强型、快速、低功耗、双通道数字隔离器
MAX22246CWEVKIT	MAXIM	获取价格	Broad Range of Data Transfer Rates (from DC to 200Mbps)

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