L9942

批量生产

Stepper Motor Driver for Bipolar Motors with microstepping & programmable current profile

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  • The L9942 is an integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile look-up-table to allow a flexible adaptation of the stepper motor characteristics and intended operating conditions. It is possible to use different current profiles depending on target criteria: audible noise, vibrations, rotation speed or torque. The decay mode used in PWM-current control circuit can be programmed to slow-, fast-, mixed-and auto-decay. In autodecay mode device will use slow decay mode if the current for the next step will increase and the fast decay or mixed decay mode if the current will decrease. The programmable stall detection is useful in case of head lamp leveling and bending light application, by preventing to run the motor too long time in stall for position alignment. If a stall is detected, the alignment process is closed and the noise is minimized.

    主要特性

    • Two full bridges for max. 1.3 A load(RDSON= 500 mΩ)
    • Programmable current waveform with look-up table: 9 entries with 5 bit resolution
    • Current regulation by integrated PWM controller and internal current sensing
    • Programmable stepping mode: full, half, mini and microstepping
    • Programmable slew rate for EMC and power dissipation optimization
    • Programmable Fast-, Slow-, Mixed- and Auto-Decay Mode
    • Full-scale current programmable with 3 bit resolution
    • Programmable stall detection
    • Step clock input for reduced μController requirements
    • Very low current consumption in standby mode IS< 3 μA, typ. Tj≤ 85 °C
    • All outputs short circuit protected with openload, overload current, temperature warning and thermal shutdown
    • The PWM signal of the internal PWM controller is available as digital output.
    • All parameters are guaranteed for 3 V < Vcc < 5.3 V and for 7 V < Vs < 20 V

电路原理图

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样片和购买

产品型号
封装
包装类型
温度(ºC) 供货状态
预算价格(US$)
数量
ECCN (US)
更多信息
从分销商订购
从ST订购
min
max
L9942XP1TR PowerSSO 24 Tape And Reel - -
批量生产
2.3 1000 EAR99
更多信息

Country of Origin:

MALAYSIA

查看供货情况

Distributor availability ofL9942XP1TR

代理商名称
地区 库存 最小订购量 Third party link
AVNET AMERICA 1000 0 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 921 1 Order Now
Farnell Element14 EUROPE 977 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

AVNET

库存

1000

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

3000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

921

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

977

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-13

获取样片
L9942XP1 PowerSSO 24 Tube - -
批量生产
2.3 1000 EAR99
更多信息

Country of Origin:

MALAYSIA

查看供货情况

Distributor availability ofL9942XP1

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 1225 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

MOUSER

库存

1225

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-13

获取样片

L9942XP1TR

封装

PowerSSO 24

包装类型

Tape And Reel

单价(US$)

2.3*

Distributor availability ofL9942XP1TR

代理商名称
地区 库存 最小订购量 Third party link
AVNET AMERICA 1000 0 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 921 1 Order Now
Farnell Element14 EUROPE 977 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

AVNET

库存

1000

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

3000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

921

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

977

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-13

Operating Temperature (°C)

(min)

-

(max)

-

供货状态

批量生产

单价(US$)

2.3

数量

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L9942XP1

封装

PowerSSO 24

包装类型

Tube

单价(US$)

2.3*

Distributor availability ofL9942XP1

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 1225 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

MOUSER

库存

1225

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-13

Operating Temperature (°C)

(min)

-

(max)

-

供货状态

批量生产

单价(US$)

2.3

数量

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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技术文档

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      DS4480
      Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile
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      Thermal design calculations for integrated stepper motor driver solutions
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      Thermal design calculations for integrated stepper motor driver solutions

    • 描述 版本 文档大小 操作
      UM0839
      ST L9942 evaluation board
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产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
L9942XP1
批量生产
PowerSSO 24 汽车 Ecopack2
L9942XP1TR
批量生产
PowerSSO 24 汽车 Ecopack2

L9942XP1

Package:

PowerSSO 24

Material Declaration**:

PDF

Marketing Status

批量生产

Package

PowerSSO 24

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L9942XP1TR

Package:

PowerSSO 24

Material Declaration**:

PDF

Marketing Status

批量生产

Package

PowerSSO 24

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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