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參數(shù)資料
| 型號(hào)： | 5962-9168901MXA |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.5 A, CDIP28 |
| 封裝： | DIP-28 |
| 文件頁(yè)數(shù)： | 4/17頁(yè) |
| 文件大?。?/td> | 317K |
| 代理商： | 5962-9168901MXA |
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12
UC1625
UC2625
UC3625
Fast High-Side N-Channel Driver with Transformer
Isolation
A small pulse transformer can provide excellent isolation
between the UC3625 and a high-voltage N-Channel
MOSFET while also coupling gate drive power. In this
circuit (shown in Fig. 12), a UC3724 is used as a trans-
former driver/encoder that duty-cycle modulates the
transformer with a 150kHz pulse train. The UC3725 recti-
fies this pulse train for gate drive power, demodulates the
signal, and drives the gate with over 2 amp peak current.
Both the UC3724 and the UC3725 can operate up to
500kHz if the pulse transformer is selected appropriately.
To raise the operating frequency, either lower the timing
resistor of the UC3724 (1k
min), lower the timing ca-
pacitor of the UC3724 (500pF min) or both.
If there is significant capacitance between transformer
primary and secondary, together with very high output
slew rate, then it may be necessary to add clamp diodes
from the transformer primary to +12V and ground. Gen-
eral purpose small signal switching diodes such as
1N4148 are normally adequate.
The UC3725 also has provisions for MOSFET current
limiting. Consult the UC3725 data sheet for more infor-
mation on implementing this.
Computational Truth Table
This table shows the outputs of the gate drive and open
collector outputs for given hall input codes and direction
signals. Numbers at the top of the columns are pin
numbers.
These ICs operate with position sensor encoding that
has either one or two signals high at a time, never all low
or all high. This coding is sometimes referred to as “120
°
Coding” because the coding is the same as coding with
position sensors spaced 120 magnetic degrees about
the rotor. In response to these position sense signals,
only one low-side driver will turn on (go high) and one
high-side driver will turn on (pull low) at any time.
2
8
7
1
6
5
4
3
1
2
6
7
4
8
UC3724N
UC3725N
1:2
PUA
33k
3
+12V
1nF
5k
100nF
VMOTOR
TO MOTOR
APPLICATION INFORMATION (cont.)
Figure 12. Fast high-side N-channel driver with transformer isolation.
INPUTS
OUTPUTS
DIR
H1
H2
H3
Low-Side
High-Side
6
8
9
10
12
13
14
16
17
18
1001L
H
L
H
1011LL
H
L
H
1010LL
H
L
H
1
0HL
LHLH
1
0
0HL
LH
HL
1101L
H
L
H
L
0101LL
H
L
H
0100LL
H
L
H
0110L
H
L
H
0010L
H
L
H
L
0
1
1HL
LH
HL
0
1HL
LHLH
X
111LLL
H
X
000LLL
H
Table I. Computational truth table.
UDG-99047
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 5962-9168902VYA | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 SPACE-RATE BRUSHLESS DC MOTOR CONTROLLER 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 |
| 5962-9169003M3A | 制造商:Analog Devices 功能描述:ADC Single SAR 12-bit Parallel 28-Pin LCC 制造商:Analog Devices 功能描述:ADC SGL SAR 12-BIT PARALLEL 28PIN LCC - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:IC, 12-BIT ADC - Bulk 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC IC 12-BIT ADC 制造商:Analog Devices 功能描述:CONVERTER - ADC |
| 5962-9169003MXA | 制造商:Analog Devices 功能描述:ADC Single SAR 12-bit Parallel 28-Pin CDIP 制造商:Analog Devices 功能描述:ADC SGL SAR 12-BIT PARALLEL 28CDIP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:IC, MONO 12-BIT ADC IC - Bulk 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC IC MONO 12-BIT ADC IC 制造商:Analog Devices 功能描述:CONVERTER - ADC |
| 5962-9169004M3C | 制造商:Exar Corporation 功能描述: |
| 5962-9169005M3A | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述: |
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