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參數(shù)資料
| 型號： | PG001 |
| 廠商： | Sanken Electric Co.,Ltd. |
| 英文描述： | Serial Signal Generator IC for SLA7042M and SLA7044M |
| 中文描述： | 串行信號發(fā)生器集成電路SLA7042M和SLA7044M |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 179K |
| 代理商： | PG001 |
PG001M
PARALLEL-TO-SERIAL
DATA CONVERTER
PG001M DESCRIPTION AND OPERATION
The PG001M is a CMOS step-motor control IC that
converts parallel-input signals from a microprocessor (
μ
P,
or microcontroller,
μ
C) to the serial-input data format
required for control of an SLA7042M or SLA7044M
microstepping, unipolar PWM, high-current motor driver.
This control IC offers five basic modes of motor operation:
1) normal 2-phase, full-step (100% torque vector);
2) 2-phase, full-step 'boosted' torque (141% vector);
3) 1/2-step, constant torque operation
(i.e., 2-1-2 switching);
4) 1/4-step operation with current-ratioed constant
torque; and
5) smooth microstepping operation (1/8
th
step) for
resonance-free motor performance (constant torque
with eight output current ratios).
Three inputs (VC, MS
1
, and MS
2
) control these five
operational modes (as shown in figure 1); this enables
designers to change the drive method during movement to
realize optimal performance.
Initially, at start-up, the high-torque mode can provide
141% torque (the resulting vector of both motor windings
at 100% current). This enhances rapid acceleration (and
deceleration). Switching to quarter-stepping or
microstepping (after initial, startup acceleration) offers
smooth, resonance-free operation during the ramp-up
interval. The transition to quarter- or microstepping
should occur before the increasing step rate approaches the
motor resonance frequency (usually 100 to 200 Hz).
The modes of operation and current-control truth table
are listed on page 2; and there are two full-step, 2-phase
(2-2) operating modes. The VECTOR CONTROL input
(VC) can only be changed when MONITOR (MO, a
readback pin) is LOW and the PG001M is operating in the
full-step mode. Starting (or stopping) the step motor with
VC HIGH delivers the highest torque (141%) from the
motor, and is the extension of two outputs ON at 71.4%.
This 'half-step' rotor position corresponds to the state when
MO is LOW, and switching the control inputs to another
operating mode is allowed.
The PG001M accepts logic signals from the
μ
P and
converts these into the proper serial-data format required
to control the serial-data input lines of the SLA7042M or
SLA7044M microstepping power modules. The five
control inputs determine the various modes of operation.
The CLOCK
OUT
, SERIAL DATA
A
, SERIAL DATA
B
, and
STROBE to the SLA7042/44M are synchronized to the
CLOCK
IN
of the PG001M; and the CLOCK
IN
frequency is
eight times the step rate (more to follow on the signal/
timing relationships).
The internal logic and oscillator combine to convert
the parallel input signals to 'bursts' of serial data from the
A
A
B
B
AB
AB
AB
AB
ONE-PHASE, FULL-STEP MODE
(WITHOUT PG001M)
TWO-PHASE, FULL-STEP MODE
(MS1 = L, MS2 = L, VC = L)
1/4-STEP MODE
(MS1 = L, MS2 = H, VC = X)
1/8-STEP MODE
(MS1 = H, MS2 = H, VC = X)
Dwg. OP-005
TWO-PHASE, FULL-STEP MODE
MAXIMUM TORQUE (141%)
(MS1 = L, MS2 = L, VC = H)
1/2-STEP MODE
CONSTANT TORQUE
(MS1 = H, MS2 = L, VC = X)
AB
AB
AB
AB
A
A
B
B
AB
AB
AB
AB
A
A
B
B
AB
AB
AB
AB
A
A
B
B
AB
AB
AB
AB
NOTE – Mode change only allowed at half-step positions (refer to
upper right figure).
Figure 1 — Current/Displacement Vectors
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| PG0015.103NLT | 功能描述:固定電感器 IND RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| PG0015.104NLT | 功能描述:固定電感器 IND RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| PG0015.123NLT | 功能描述:固定電感器 IND RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| PG0015.124NLT | 功能描述:固定電感器 IND RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| PG0015.152NLT | 制造商:Pulse Electronics Corporation 功能描述:Ind Power Unshielded Wirewound 1.5uH 20% 11A T/R 制造商:Pulse Electronics Corporation 功能描述:Inductor Power Unshielded Wirewound 1.5uH 20% 11A 8mOhm DCR T/R |
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