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參數(shù)資料
| 型號： | L9942 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, PDSO36 |
| 封裝： | POWER, SO-36 |
| 文件頁數(shù)： | 19/21頁 |
| 文件大?。?/td> | 161K |
| 代理商： | L9942 |
can be triggered by the watchdog or by external low level at RESET pin. If neither POR nor watchdog
reset are activated, an internal current source of typ. 30
A is connected to the RESET pin. An external
capacitor connected between RESET and ground can extend the power on reset period if required (see
Fig. 2).
When the regulated power supply voltage VCC becomes sufficient at power up, the main oscillator starts
POWER SUPPLY (continued)
POR
VS
VCC
to logic supply
RESET
STOP
Watchdog Reset
30
A
VCC
ST6
internal
Reset
MAINCLK
R
Q
VREG
Standby
In
Out
Counter
÷ 2048
Figure 2. Voltage regulator and reset configuration.
to operate and generates the main clock signal MAINCLK. A counter provides a delay of 2048 clock cy-
cles between the detection of high level at RESET pin and the release of the reset for the CPU and the
peripheral logic modules. This is to allow the oscillator to be completely stabilized before the execution
of the first instruction as well as a safe reset also for short pulses at RESET pin.
Reset characteristics
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VReset L
Input low level voltage
RESET pin
0.3VCC
V
VReset H
Input high level voltage
RESET pin
0.7VCC
V
IReset L, H
Input current
RESET pin
VCC =5V
VIN =VCC1
VIN =VCC2
VIN =GND3
30
1
50
A
mA
A
1) Leakage current
2) Internal reset by watchdog or POR
3) Pull up current source
L9942
7/21
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L9942XP1 | 功能描述:低壓差穩(wěn)壓器 - LDO Integrated Stepper Bipolar Motor Driver RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| L9942XP1TR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Integrated Stepper Bipolar Motor Driver 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| 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: |
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