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參數(shù)資料
| 型號(hào)： | LB1929 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Three-Phase Brushless Motor Driver for OA Products |
| 中文描述： | 三相無刷電機(jī)驅(qū)動(dòng)的辦公自動(dòng)化產(chǎn)品 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 104K |
| 代理商： | LB1929 |
No. 7099-8/12
LB1929
Pin No.
Symbol
Pin Description
Equivalent circuit
Start/stop control pin.
L: 0V to 1.5V
H: 3.5V to VREG
H level when open.
Hysteresis width about 0.5 V
19
S/S
VREG
22k
2k
19
GND pin (Other than the output)
20
GND1
Hall amplifier input.
IN+ > IN– is the input high state, and the reverse is the input
low state.
It is recommended that the Hall signal has an amplitude of
100mVp-p(differential) or more.
Connect a capacitor between the IN+ and IN– inputs if there
is noise in the Hall sensor signals.
22
21
24
23
26
25
IN1+
IN1–
IN2+
IN2–
IN3+
IN3–
VREG
300
22
300
25
23
21
26
24
Forward/reverse control pin
L: 0V to 1.5V
H: 3.5V to VREG
H level when open
Hysteresis width about 0.5V
27
F/R
VREG
22k
2k
27
Continued from preceding page.
Function Description
1. Speed control circuit
This IC performs speed control by using both the speed discriminator circuit and PLL circuit. The speed control circuit
outputs the error signal once for every two cycles of FG (one FG cycle counted). The PLL circuit outputs the phase
error signal once for each cycle of FG.
As the FG servo frequency is calculated as follows, the motor speed is set with the number of FG pulses and crystal
oscillation frequency.
f
FG
(servo) = f
OSC
/8192
f
OSC
: Crystal oscillation frequency
2. Output drive circuit
This IC employs a direct PWM drive method to minimize the power loss at output. The output Tr is always saturated
at ON, and the motor drive force is adjusted through change of the duty at which the output is turned ON. Since the
output PWM switching is made with the lower-side output Tr, it is necessary to connect the schottky diode between
OUT and V
CC
(because the through current flows at an instant when the lower-side Tr is turned ON if the diode with a
short reverse recovery time is not used). The diode between OUT and GND is incorporated. When the large output
current presents problem (waveform disturbance at kickback on the lower side), connect a commutating diode or
schottky diode externally.
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PDF描述 |
|---|---|
| LB1930 | Single-Channel Low Saturation Voltage Forward/Reverse Motor Driver |
| LB1930M | Single-Channel Low Saturation Voltage Forward/Reverse Motor Driver |
| LB1934 | 3V Camera 1.5-Channel Driver |
| LB1934T | 3V Camera 1.5-Channel Driver |
| LB1935CL | Monolithic Digital IC Stepping Motor Driver IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB1929_08 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Office Automation Equipment 3-phase Brushless Motor Driver |
| LB1929-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 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 |
| LB1930 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Channel Low Saturation Voltage Forward/Reverse Motor Driver |
| LB1930M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Channel Low Saturation Voltage Forward/Reverse Motor Driver |
| LB1930M_11 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Low-Voltage, Low-Saturation Bidirectional Motor Driver |
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