Datasheet > MAX22203

MAX22203

更新时间： 2024-10-04 02:52:55

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
23页	411K
描述
65V, 3.8A Dual Brushed or Single Stepper Motor Driver with Integrated Current Sense

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MAX22203 数据手册

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MAX22203

65V, 3.8A Dual Brushed or Single Stepper

Motor Driver with Integrated Current Sense

General Description

Benefits and Features

The MAX22203 is a dual 65V, 3.8A

H-Bridge with

● Two H-Bridges with 65V Maximum Operating Voltage

MAX

PWM inputs and accurate Current Drive Regulation

(CDR). Each H-Bridge can be controlled individually and

• Total R (High-Side + Low-Side): 300mΩ typical

(T = 25°C)

has a very low typical R

(high-side + low-side) of 0.3Ω,

● Current Ratings Per H-Bridge (Typical at 25°C):

resulting in high driving efficiency and low heat generation.

The MAX22203 can be used to drive two Brushed DC mo-

tors or a single Stepper Motor.

• I

= 3.8A (Impulsive Current for Driving

MAX

Capacitive Loads)

• I

= 3A (Maximum Current Setting for

TRIP_MAX

The integrated CDR can limit the start up or stall the cur-

rent of a Brushed DC motor or control the phase current

for stepper operation.

Internal Current Drive Regulation)

• I

= 2A

RMS

● Integrated Current Drive Regulation (CDR)

• Internal Current Sensing (ICS) Eliminates External

Bulky Resistors and Improves Efficiency

• Current Drive Regulation Monitor Output Pins

(CDRA and CDRB)

The bridge output current is sensed by a non-dissipative

Integrated Current Sensing (ICS) eliminating the bulky ex-

ternal power resistors (which are normally required for this

function) and compared with a configurable threshold cur-

rent (I

). The I

threshold can be set independently

• Multiple Decay Modes (Slow, Mixed, Fast)

• Fixed Off Time Configurable with External

Resistance.

TRIP

for the two full bridges by connecting the external resistors

to pins R and R

EFB

EFA

The maximum output current per H-Bridge is I

= 3.8A

● Current-Sense Output (Current Monitor)

● Fault Indicator Pin (FAULT)

● Protections

MAX

and is limited by the Overcurrent Protection (OCP) circuit.

This current can be driven for very short transients and

is aimed to effectively drive small capacitive loads. The

maximum user-configurable current regulation threshold is

• Overcurrent Protection for Each Individual Channel

(OCP)

= 3A. The maximum RMS current (I

) per

• Undervoltage Lockout (UVLO)

TRIP_MAX

RMS

H-Bridge is 2A

on a standard JEDEC 4-layer board.

• Thermal Shutdown (TSD) T = +165°C

RMS

The maximum RMS current can be limited by thermal con-

siderations and depends on the thermal characteristic of

the application (PCB ground planes, heat sinks, forced air

ventilation, etc).

● TQFN38 5mm x 7mm package (TSSOP38 4.4mm x

9.7mm available in the future)

Ordering Information appears at end of data sheet.

The MAX22203 features Overcurrent Protection (OCP),

Thermal Shutdown (TSD), and Undervoltage Lockout

(UVLO). An open-drain active low nFAULT pin is activated

every time a fault condition is detected. During Thermal

Shutdown and Undervoltage Lockout, the driver is tristat-

ed until normal operations are restored.

The MAX22203 is packaged into a small TQFN38 5mm x

7mm package.

Applications

● Brushed DC Motor Driver

● Stepper Motor Driver

● Solenoid Driver

● Latched Valves

19-101012; Rev 0; 5/21

12 3 4 5 6 7...23

中文翻译

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与MAX22203相关器件

型号	品牌	获取价格	描述	数据表
MAX22203AHU+*	MAXIM	获取价格	65V, 3.8A Dual Brushed or Single Stepper Motor Driver with Integrated Current Sense
MAX22203ATU+	MAXIM	获取价格	65V, 3.8A Dual Brushed or Single Stepper Motor Driver with Integrated Current Sense
MAX22204	ADI	获取价格	集成电流检测和128微步分度器的65V、3.8A步进电机驱动器
MAX22205	ADI	获取价格	集成电流检测功能的65V、7.6A大电流单H桥
MAX22207	ADI	获取价格	集成电流检测功能的36V、3.5A有刷电机驱动器
MAX22208	ADI	获取价格	具有集成电流检测功能的 65V、3.8A 四路 H 半桥驱动器
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

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