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PBL3770AQNT PDF даташит

Спецификация PBL3770AQNT изготовлена ​​​​«Ericsson» и имеет функцию, называемую «High Performance Stepper Motor Drive Circuit».

Детали детали

Номер произв PBL3770AQNT
Описание High Performance Stepper Motor Drive Circuit
Производители Ericsson
логотип Ericsson логотип 

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PBL3770AQNT Даташит, Описание, Даташиты
February 1999
PBL 3770A
High Performance
Stepper Motor Drive Circuit
Description
PBL 3770A is a bipolar monolithic circuit intended to control and drive the current in
one winding of a stepper motor. It is a high power version of PBL 3717 and special
care has been taken to optimize the power handling capability without suffering in
reliability.
The circuit consists of a LS-TTL compatible logic input stage, a current sensor, a
monostable multivibrator and a high power H-bridge output stage. The circuit is
pin-compatible with the PBL 3717 industry-standard driver.
Two PBL 3770A and a small number of external components form a complete
control and drive unit for LS-TTL or microprocessor-controlled stepper motor
systems.
Key Features
• Half-step and full-step operation.
• Switched mode bipolar constant
current drive
• Wide range of current control
5 -1800 mA.
• Wide voltage range 10 - 45 V.
• Designed for unstabilized motor
supply voltage.
• Current levels can be selected in
steps or varied continuously.
• Thermal overload protection.
Phase
I
1
I0
VR
GND
VCC
VMM
VMM
Schmitt
Trigger
Time
Delay
1
1
1
&&&&
1
1
MA
MB
+
+
+
Current Sensor
C
Output Stage
Monostable
toff = 0.69 • RT • CT
TE
PBL 3770A
Figure 1. Block diagram.
16-pin plastic batwing DIP
28-pin plastic PLCC package
20-pin SO
1









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PBL3770AQNT Даташит, Описание, Даташиты
PBL 3770A
Maximum Ratings
Parameter
Voltage
Logic supply
Motor supply
Logic inputs
Comparator input
Reference input
Current
Motor output current
Logic inputs
Analog inputs
Temperature
Operating junction temperature
Storage temperature
Pin no. [DIL package]
6
3, 14
7,8,9
10
11
1, 15
7,8,9
10,11
Recommended Operating Conditions
Parameter
Logic supply voltage
Motor supply voltage
Motor output current
Junction temperature
Rise time logic inputs
Fall time logic inputs
Symbol
VCC
VMM
I
M
TJ
tr
tf
Symbol
V
CC
VMM
VI
VC
VR
I
M
II
IA
T
J
T
s
Min
4.75
10
-1500
-20
Min
0
0
-0.3
-0.3
-0.3
-1800
-10
-10
-40
-55
Typ
5
Max
Unit
7V
45 V
6V
VCC V
15 V
+1800
mA
mA
mA
+150
+150
°C
°C
Max
5.25
40
+1500
+125
2
2
Unit
V
V
mA
°C
µs
µs
I CC
I I IIH IIL
IA
Phase 8
I7
1
I0 9
VR 11
VCC
6 [18]
Schmitt
Trigger
Time
Delay
1
1
&&&&
1
VMM
3
VMM
14
1
1
I MM
15 M A
IM IOL
1 MB
VCC
VI
V IH
V IL
VA
V
R
+
+
GND
4, 5,
12, 13
IC
IA
VC
+
Current Sensor
10
C
1k
RC
820 pF
CC
Output Stage
Monostable
t off = 0.69 • RT• CT
2 16
TE
PBL 3770A
56 k 820 pF 0.5
VE
RT CT
RS
Pin no. refers
to DIL-package
VM
V
MA
VMM
Figure 2. Definition of symbols.
2









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PBL3770AQNT Даташит, Описание, Даташиты
PBL 3770A
Electrical Characteristics
Electrical characteristics over recommended operating conditions. CT = 820 pF, RT = 56 kohm.
Ref.
Parameter
Symbol fig. Conditions
Min Typ
Max Unit
General
Supply current
Total power dissipation
ICC 2
PD
Turn-off delay
t3
d
Thermal shutdown junction temperature
VMM = 20 to 40 V, I0 = I1 = HIGH.
VMM = 20 to 40 V, I0 = I1 = LOW,
fs = 23 kHz
fs = 28 kHz, IM = 1000 mA, VMM = 36 V
Note 2, 4.
f = 24 kHz, I = 1000 mA, V = 12 V
sM
MM
Note 2, 4.
fs = 28 kHz, IM = 1300 mA, VMM = 36 V
Note 3, 4.
fs = 28 kHz, IM = 1500 mA, VMM = 36 V
Note 3, 4.
T
a
=
+25°C,
dV /dt
C
50
mV/µs.
30 40
48 65
1.9 2.3
1.7 2.1
2.7 3.2
3.5
2.5
170
mA
mA
W
W
W
W
µs
°C
Logic Inputs
Logic HIGH input voltage
Logic LOW input voltage
Logic HIGH input current
Logic LOW input current
VIH 2
VIL 2
IIH 2 VI = 2.4 V
I 2 V = 0.4 V
IL I
2.0 V
0.8 V
20 µA
-0.4 mA
Analog Inputs
Comparator threshold voltage V
2 V = 5.0 V, I = I = LOW
CH R 0 1
400 415 430 mV
Comparator threshold voltage V
2 V = 5.0 V, I = HIGH, I = LOW
240
250
265
mV
CM R 0 1
Comparator threshold voltage VCL 2 VR = 5.0 V, I0 = LOW, I1 = HIGH
70
80
90
mV
Input current
IC 2
-20 µA
Motor Outputs
Lower transistor saturation voltage
Lower diode forward voltage drop
Upper transistor saturation voltage
Output leakage current
IM = 1000 mA
I = 1300 mA
M
I = 1000 mA
M
IM = 1300 mA
IM = 1000 mA
IM = 1300 mA
I0 = I1 = HIGH, Ta = +25°C
0.5 0.8 V
0.8 1.3 V
1.3 1.6 V
1.5 1.8 V
1.1 1.3 V
1.3 1.6 V
100 µA
Monostable
Cut off time
t
off
3
V
MM
=
10
V,
t
on
5
µs
27 31 35 µs
Thermal Characteristics
Ref.
Parameter
Symbol Fig. Conditions
Min Typ
Max
Thermal resistance
Notes
Rth
J-C
DIL package.
Rth 15 DIL package. Note 2.
J-A
RthJ-C
PLCC package.
RthJ-A 15 PLCC package. Note 2.
RthJ-C
SO package.
RthJ-A 15 SO package.
11
40
9
35
11
40
1. All voltages are with respect to ground. Currents are positive into, negative out of specified terminal.
2.
All ground pins soldered onto a 20 cm2 PCB copper area with free air convection.
T
a
=
+25°C.
3. DIP package with external heatsink (Staver V7) and minimal copper area. Typical RthJ-A = 27.5°C/W. Ta = +25°C.
4. Not covered by final test program.
Unit
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
3










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