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參數(shù)資料
| 型號： | MC33035P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.1 A, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大小： | 655K |
| 代理商： | MC33035P |
MC33035
9
MOTOROLA ANALOG IC DEVICE DATA
decoder can resolve the motor rotor position to within a
window of 60 electrical degrees.
The Forward/Reverse input (Pin 3) is used to change the
direction of motor rotation by reversing the voltage across the
stator winding. When the input changes state, from high to
low with a given sensor input code (for example 100), the
enabled top and bottom drive outputs with the same alpha
designation are exchanged (A
T
to A
B
, B
T
to B
B
, C
T
to C
B
). In
effect, the commutation sequence is reversed and the motor
changes directional rotation.
Motor on/off control is accomplished by the Output Enable
(Pin 7). When left disconnected, an internal 25
μ
A current
source enables sequencing of the top and bottom drive
outputs. When grounded, the top drive outputs turn off and
the bottom drives are forced low, causing the motor to coast
and the Fault output to activate.
Dynamic motor braking allows an additional margin of
safety to be designed into the final product. Braking is
accomplished by placing the Brake Input (Pin 23) in a high
state. This causes the top drive outputs to turn off and the
bottom drives to turn on, shorting the motor–generated back
EMF. The brake input has unconditional priority over all other
inputs. The internal 40 k
pull–up resistor simplifies
interfacing with the system safety–switch by insuring brake
activation if opened or disconnected. The commutation logic
truth table is shown in Figure 20. A four input NOR gate is
used to monitor the brake input and the inputs to the three
top drive output transistors. Its purpose is to disable braking
until the top drive outputs attain a high state. This helps to
prevent simultaneous conduction of the the top and bottom
power switches. In half wave motor drive applications, the
top drive outputs are not required and are normally left
disconnected. Under these conditions braking will still be
accomplished since the NOR gate senses the base voltage
to the top drive output transistors.
Error Amplifier
A high performance, fully compensated error amplifier with
access to both inputs and output (Pins 11, 12, 13) is provided
to facilitate the implementation of closed loop motor speed
control. The amplifier features a typical DC voltage gain of
80 dB, 0.6 MHz gain bandwidth, and a wide input common
mode voltage range that extends from ground to V
ref
. In most
open loop speed control applications, the amplifier is
configured as a unity gain voltage follower with the
noninverting input connected to the speed set voltage source.
Additional configurations are shown in Figures 31 through 35.
Oscillator
The frequency of the internal ramp oscillator is
programmed by the values selected for timing components
R
T
and C
T
. Capacitor C
T
is charged from the Reference
Output (Pin 8) through resistor R
T
and discharged by an
internal discharge transistor. The ramp peak and valley
voltages are typically 4.1 V and 1.5 V respectively. To provide
a good compromise between audible noise and output
switching efficiency, an oscillator frequency in the range of
20 to 30 kHz is recommended. Refer to Figure 1 for
component selection.
15
24
20
2
1
21
19
V
M
Top
Drive
Outputs
Bottom
Drive
Outputs
C
B
Current Sense
Reference Input
B
B
A
B
A
T
B
T
C
T
Q
S
Latch
R
Oscillator
Error Amp
PWM
Thermal
Shutdown
Reference
Regulator
Lockout
Undervoltage
Q
R
S
Rotor
Position
Decoder
Brake Input
Figure 19. Representative Block Diagram
60
°
/120
°
Select
Output Enable
V
in
C
T
R
T
4
10
11
13
8
12
3
17
22
7
6
5
Forward/Reverse
Faster
Noninv. Input
S
A
S
C
S
B
Sensor
Inputs
Error Amp Out
PWM Input
Sink Only
Positive True
Logic With
Hysteresis
=
Reference Output
16
Latch
23
Gnd
14
9
Current Sense Input
Fault Output
20 k
20 k
20 k
40 k
40 k
25
μ
A
V
CC
V
C
18
9.1 V
4.5 V
100 mV
40 k
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC33035PG | 功能描述:馬達/運動/點火控制器和驅動器 DC Brushless Motor Controller RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MC33035PG | 制造商:ON Semiconductor 功能描述:Controller IC Package/Case:24-DIP |
| MC33039 | 制造商:SPC Multicomp 功能描述:FAN TRAY ASSEMBLY AC 3FAN 45W 315CFM 制造商:SPC Multicomp 功能描述:FAN TRAY ASSEMBLY, AC, 3FAN, 45W, 315CFM 制造商:SPC Multicomp 功能描述:FAN TRAY ASSEMBLY, AC, 3FAN, 45W, 315CFM; Fan Tray Type:AC Fans; Body Color:-; No. of Fans:3; Supply Voltage:115VAC; Power Rating:45W; Bearing Type:Ball; Power Connection Type:Power Cord; External Depth:18"; External Height:1.75" ;RoHS Compliant: Yes |
| MC33039_06 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Closed Loop Brushless Motor Adapter |
| MC33039D | 功能描述:馬達/運動/點火控制器和驅動器 Brushless Closed RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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