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參數(shù)資料
| 型號(hào)： | NJU7332PB1 |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, QCC12 |
| 封裝： | 2 X 2 MM, 0.85 MM HEIGHT, FFP-12 |
| 文件頁數(shù)： | 5/5頁 |
| 文件大?。?/td> | 87K |
| 代理商： | NJU7332PB1 |
Ver.2007-02-20
NJU7332
- 5 -
APPLICATION NOTE
The NJU7332 is a signal-phase DC brushless motor driver IC featuring CMOS process.
It is suitable for fan drivers for a small equipment such as the note personal computers.
[Application Circuit Example]
IN+
IN-
VDD
VSS
OUTB
OUTA
Motor
Hall
element
R1
R2
NJU7332
V+
GND
C1
D1
[Design Notes]
Above application example is designed for 5V operation with motor current of 100mA, it uses the following
components:
Hall Elements: HW101A(AKE)
SECTION of C1 and D1:
C1 used for a noise reduction purpose. A typical value is 0.1
μ
F.
Optimize the value in actual operating condition if necessary. D1 is a diode for protection against reverse voltage
supply. Silicon rectifier diode(WO3C, 10D1, and equivalent) is appropriate.
Design of hall element bias resistance
(R1 and R2)
Hall amplifier is a differential with hysteresis characterics(24mV typical).
The common-mode input voltage is between 0.4V and VDD-1V and the input signal must be within the range.
Non-excitation hall bias is to be set at a half of VDD for effective use of common-mode input voltage range.
Therefore the same value of hall bias resistors is seletcted for R1 and R2.
Given that the bias current is set to be 5mA by HW101A datasheet, R1 and R2 can be determined as
follows:
The output voltage of hall elements is influnenced by the bias current and magnetic flux density of hall elements.
The optimum input voltage of the NJU7332 is 100mVp-p and higher. With such input voltage, the highest
efficiency can be obtained.
=
=
=
×
=
=
+
+
300
2
1
1
10
5
5
2
1
3
R
R
k
Ihbias
VDD
Rin
R
R
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NJU7332PB1-TE1 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Single Phase DC Brushless Mtr Drvr 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 |
| NJU7333 | 制造商:NJRC 制造商全稱:New Japan Radio 功能描述:Single-phaseDC Brushless Motor Driver IC |
| NJU7333R | 制造商:NJRC 制造商全稱:New Japan Radio 功能描述:Single-phaseDC Brushless Motor Driver IC |
| NJU7333R-TE1 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Sgl Phse DC Brshless 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 |
| NJU7342RB1-TE1 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Sgl Phse DC Brshless 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 |
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