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參數(shù)資料
| 型號： | L9942XP1TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 2.5 A, PDSO24 |
| 封裝： | ROHS COMPLIANT, SSOP-24 |
| 文件頁數(shù)： | 28/40頁 |
| 文件大?。?/td> | 639K |
| 代理商： | L9942XP1TR |
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Appendix
L9942
Doc ID 11778 Rev 6
bridge and current comparator has as new reference the overcurrent limit. A shortage to
ground can be detected, but not between the outputs.
Is it recommended to use the different fast decay modes too, especially in period if the load
current has to reduce from step to step. The duration of fast decay can set by fixed time ore
that it depends on the comparator signal utilizing the second current mirror at LS switch.
There can be monitored the undershoot of bridge current during OFF state.
Fast decay can be seen as switching the bridge in opposite direction, if it is compared to ON
state before. The load current control at HS switch is not used, but the comparator is still
active. The reference value is changed to overcurrent limit and a shortage to ground or now
between the outputs too will result in a signal. The internal filter time of at least 4 us will
inhibit the signal in many applications. Then you can use the mode “auto decay without any
delay time“ (On Section 5.1 mode 100). On page 12 you can find in the lower part of
Figure 3 the phase counter values, when fast decay as only part of mixed decay is used and
the shortages can be detected during a longer time. After this it is signalized in register 7 as
overcurrent in HS switch (e.g. in Figure 17 HSA1).
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| L9949TR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO20 |
| L9950XPTR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9950 | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9950TR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9953XPTR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L9946 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC Motor Controller/Driver |
| L9947 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER |
| L9947L | 制造商:STMicroelectronics 功能描述: |
| L9947S | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Quad Half Bridge RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L9949 | 功能描述:功率驅(qū)動器IC Door Actuator RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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