Datasheet.kr   

PBL3775QN 데이터시트 PDF




Ericsson에서 제조한 전자 부품 PBL3775QN은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 PBL3775QN 자료 제공

부품번호 PBL3775QN 기능
기능 Dual Stepper Motor Driver
제조업체 Ericsson
로고 Ericsson 로고


PBL3775QN 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.



전체 8 페이지수

미리보기를 사용할 수 없습니다

PBL3775QN 데이터시트, 핀배열, 회로
February 1999
PBL 3775/1
Dual Stepper Motor Driver
Description
The PBL 3775/1 is a switch-mode (chopper), constant-current driver IC with two
channels, one for each winding of a two-phase stepper motor. The circuit is similar to
Ericsson´s PBL 3773/1. While several of Ericsson´s dual stepper motor drivers are
optimized for micro-stepping applications, PBL 3775/1 is equipped with a disable
input to simplify half-stepping operation.
The PBL 3775/1 contains a clock oscillator, which is common for both driver
channels, a set of comparators and flip-flops implementing the switching control, and
two output H-bridges, including recirculation diodes.
Voltage supply requirements are + 5 V for logic and + 10 to + 45 V for the motor.
The close match between the two driver channels guarantees consistent output
current ratios and motor positioning accuracy.
Key Features
• Dual chopper driver in a single
package.
• Operation down to -40°C.
• 750 mA continuous output current
per channel.
• Low power dissipation, 2.0 W at
2 x 500 mA output current.
• Close matching between channels
for high microstepping accuracy.
• Digital filter on chip eliminates
external filtering components.
• Plastic 22-pin batwing DIL package,
24-pin SOIC batwing or 28-pin power
PLCC. All with lead-frame for
heatsinking through PC board
copper.
Phase 1
PBL 3775/1
Dis1 VR1
C1
VCC VCC
+
E1
RQ
S
Logic
+
RC
Logic
+ SQ
R
Phase 2
Dis 2 VR2
C2
GND
Figure 1. Block diagram
E2
M A1
M B1
VMM1
VMM2
M B2
M A2
28-pin PLCC package
22-pin plastic DIP package
24-pin SO package




PBL3775QN pdf, 반도체, 판매, 대치품
PBL 3775/1
NC 1
MB1 2
E1 3
MA1 4
VMM1 5
GND 6
GND 7
VR1 8
C1 9
Phase1 10
Dis1 11
RC 12
PBL
3775/1SO
24 NC
23 MB2
22 E2
21 MA2
20 VMM2
19 GND
18 GND
17 VR2
16 Dis2
15 Phase2
14 C2
13 Vcc
Figure 4. Pin configuration.
MB1 1
22 MB2
E1 2
MA1 3
21 E2
20 MA2
VMM1 4
19 VMM2
GND 5
18 GND
GND
6
PBL
3775/1N
17
GND
VR1 7
16 V R2
C1 8
Phase1 9
15 C2
14 Phase 2
Dis1 10
13 Dis2
RC 11
12 VCC
MA2 5
E2 6
M B2 7
M B1 8
GND 9
E1 10
M A1 11
PBL 3775/1QN
25 Phase2
24 Dis 2
23 VCC
22 RC
21 Dis 1
20 Phase1
19 C1
Pin Description
SO DIP PLCC
2 1 [8]
3 2 [10]
4 3 [11]
5 4 [12]
6,7 5, 6, [1-3, 9,
18,19 17, 18 13-17,
28]
8 7 [18]
Symbol
M
B1
E1
MA1
VMM1
GND
V
R1
9 8 [19]
C1
10 9
[20]
11 10 [21]
12 11 [22]
Dis
1
RC
13 12 [23]
14 13 [24]
15 14 [25]
VCC
Dis2
16 15 [26]
17 16 [27]
20 19
21 20
22 21
23 22
1,24
[4]
[5]
[6]
[7]
C2
VR2
V
MM2
MA2
E2
MB2
NC
Description
Motor output B, channel 1. Motor current flows from M to M when Phase is HIGH.
A1 B1
1
Common emitter, channel 1. This pin connects to a sensing resistor RS to ground.
Motor output A, channel 1. Motor current flows from MA1 to MB1 when Phase1 is HIGH.
Motor supply voltage, channel 1, +10 to +40 V. VMM1 and VMM2 should be connected together.
Ground and negative supply. Note: these pins are used thermally for heat-sinking.
Make sure that all ground pins are soldered onto a suitably large copper ground plane
for efficient heat sinking.
Reference voltage, channel 1. Controls the comparator threshold voltage and hence the output
current.
Comparator input channel 1. This input senses the instantaneous voltage across the sensing
resistor, filtered by the internal digital filter or an optional external RC network.
Phase1 Controls the direction of motor current at outputs MA1 and MB1. Motor current
flows from MA1 to MB1 when Phase1 is HIGH.
Disable input for channel 1. When HIGH, all four output transistors are turned off, which results
in a rapidly decreasing output current to zero.
Clock oscillator RC pin. Connect a 12 kohm resistor to VCC and a 4 700 pF capacitor to ground
to obtain the nominal switching frequency of 23.0 kHz and a digital filter blanking time of 1.0µs.
Logic voltage supply, nominally +5 V.
Disable input for channel 2. When HIGH, all four output transistors are turned off, which results
in a rapidly decreasing output current to zero.
Phase Controls the direction of motor current at outputs M and M . Motor current
2 A2 B2
flows from MA2 to MB2 when Phase2 is HIGH.
Comparator input channel 2. This input senses the instantaneous voltage across the sensing
resistor, filtered by the internal digital filter or an optional external RC network.
Reference voltage, channel 2. Controls the comparator threshold voltage and hence the output
current.
Motor supply voltage, channel 2, +10 to +40 V. V and V should be connected together.
MM1
MM2
Motor output A, channel 2. Motor current flows from MA2 to MB2 when Phase2 is HIGH.
Common emitter, channel 2. This pin connects to a sensing resistor RS to ground.
Motor output B, channel 2. Motor current flows from MA2 to MB2 when Phase2 is HIGH.
SO pin 1 & 24 is "Not Connected"
4

4페이지










PBL3775QN 전자부품, 판매, 대치품
Low inductance, especially in combi-
nation with a high supply voltage,
enables high stepping rates. However,
to give the same torque capability at low
speed, the reduced number of turns in
the winding in the low resistive, low
inductive motor must be compensated
by a higher current. A compromise has
to be made. Choose a motor with the
lowest possible winding resistance and
inductance, that still gives the required
torque, and use as high supply voltage
as possible, without exceeding the
maximum recommended 40 V. Check
that the chopping duty cycle does not
exceed 50 % at maximum current.
Heat sinking
PBL 3775/1 is a power IC, packaged in
a power DIP,SO or PLCC package. The
ground leads of the package (the
batwing) are thermally connected to the
chip. External heatsinking is achieved
by soldering the ground leads onto a
copper ground plane on the PCB.
Maximum continuous output current is
heavily dependent on the heatsinking
and ambient temperature. Consult
figures 8, 9 and 14 to determine the
necessary heatsink, or to find the
maximum output current under varying
conditions.
A copper area of 20 cm2 (approx. 1.8”
x 1.8”), copper foil thickness 35 µm on a
1.6 mm epoxy PCB, permits the circuit
to operate at 2 x 450 mA output current,
at ambient temperatures up to 85° C.
Thermal shutdown
The circuit is equipped with a thermal
shutdown function that turns the outputs
off at a chip (junction) temperature
above 160° C. Normal operation is
resumed when the temperature has
decreased about 20° C.
Programming
Figure 15 shows the different input and
output sequences for full-step, half-step
and modified halfstep operations. Full-
step mode. Both windings are
energized at all the time with the same
current, IM1 = IM2. To make the motor
take one step, the current direction (and
the magnetic field direction) in one
phase is reversed. The next step is then
taken when the other phase current
reverses. The current changes go
through a sequence of four different
states which equal four full steps until
the initial state is reached again.
PD (W)
3.0
2.0
1.0 Two channels on
One channel on
0
0 0.20 0.40 0.60
I M (A)
0.80
Figure 8. Power dissipation vs. motor
current.Ta = 25°C.
VCE Sat (V)
1.2
1.0
0.8
0.6
0.4
0.2
0
0 0.20 0.40 0.60 0.80
I M (A)
Figure 10. Typical lower transistor
saturation voltage vs. output current.
VCE Sat (V)
1.2
1.0
0.8
0.6
0.4
0.2
0
0 0.20 0.40 0.60 0.80
I M (A)
Figure 12. Typical upper transistor
saturation voltage vs. output current.
PBL 3775/1
Maximum allowable power dissipation [W]
6
5
4
3
Ambient temperature
2
1
0
-25 0
25 50 75 100 125 150
Temperature [°C]
PLCC package
DIP package
All ground pins soldered onto a
20 cm2 PCB copper area with
free air convection.
Figure 9. Maximum allowable power
dissipation.
Vd, ld (V)
1.2
1.0
0.8
0.6
0.4
0.2
0
0 0.20 0.40 0.60 0.80
I M (A)
Figure 11. Typical lower diode voltage
drop vs. recirculating current.
Vd, ud (V)
1.2
1.0
0.8
0.6
0.4
0.2
0
0 0.20 0.40 0.60 0.80
I M (A)
Figure 13. Typical upper diode voltage
drop vs. recirculating current.
7

7페이지


구       성 총 8 페이지수
다운로드[ PBL3775QN.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
PBL3775QN

Dual Stepper Motor Driver

Ericsson
Ericsson

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵