- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄67754 > L6258EX (STMICROELECTRONICS) STEPPER MOTOR CONTROLLER, 1.5 A, PDSO36 PDF資料下載
參數(shù)資料
| 型號： | L6258EX |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.5 A, PDSO36 |
| 封裝： | POWER, SO-36 |
| 文件頁數(shù)： | 5/31頁 |
| 文件大小： | 305K |
| 代理商： | L6258EX |
第1頁第2頁第3頁第4頁當(dāng)前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁
L6258E
2.3
Phase input ( PH )
The logic level applied to this input determines the direction of the current flowing in the
winding of the motor.
High level on the phase input causes the motor current flowing from OUT_A to OUT_B
through the load.
2.4
Triangular generator
This circuit generates the two triangular waves TRI_0 and TRI_180 internally used to
generate the duty cycle variation of the signals driving the output stage in bridge
configuration.
The frequency of the triangular wave defines the switching frequency of the output, and can
be adjusted by changing the capacitor connected at TR1_CAP pin:
where: K = 1.5 x 10-5
2.5
Charge pump circuit
To ensure the correct driving of the high side drivers a voltage higher than Vs is supplied on
the Vboot pin. This boostrap voltage is not needed for the low side power DMOS transistors
because their sources terminals are grounded. To produce this voltage a charge pump
method is used. It is made by using two external capacitors; one connected to the internal
oscillator (CP) and the other (Cboot) to storage the overvoltage needed for the driving the
gates of the high side DMOS. The value suggested for the capacitors are:
LHL
L
88.9
LL
H
92.1
LL
H
L
95.2
LL
L
H
98.4
LL
100
Table 5.
Current levels (continued)
I3
I2
I1
I0
Current level
% of IMAX
F
ref
K
C
----
=
Table 6.
Charge pump capacitor's values
Component name
Component's function
Value
Unit
Cboot
Storage capacitor
100
nF
CP
Pump capacitor
10
nF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6470PD | STEPPER MOTOR CONTROLLER, 7 A, PDSO36 |
| L6566BTR | 0.8 A POWER FACTOR CONTROLLER, 900 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6706 | SWITCHING REGULATOR, QCC40 |
| L6717 | DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, QCC48 |
| L6728HTR | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6258EX_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PWM controlled high current DMOS universal motor driver |
| L6258EXTR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Hi-Curr Univ Motor 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 |
| L625CME | 制造商:COOPER INDUSTRIES 功能描述:LUFKIN / TAPE,POWER,1"(25MM)X25(8 |
| L625DG | 制造商:LIGHTING COMP DESIGN 功能描述: 制造商:Lighting Components & Design Inc 功能描述: |
| L625DR | 制造商:LIGHTING COMP DESIGN 功能描述: 制造商:Lighting Components & Design Inc 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。