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Part Number: PBL3775N
Description: The PBL 3775/1 is a switch-mode (chopper), constant-current driver IC with two channels, one for each ...
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PBL3775N
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General Description
PBL3775N General 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.
PBL3775N Maximum Ratings
| Parameter |
Pin No. (DIP) |
Symbol |
Min |
Max |
Unit |
| Voltage | |||||
| Logic supply |
12 |
VCC |
0 |
7 |
V |
| Motor supply |
4, 19 |
VMM |
0 |
45 |
V |
| Logic inputs |
9, 10, 13, 14 |
VI |
-0.3 |
6 |
V |
| Analog inputs |
7, 8, 15, 16 |
VA |
-0.3 |
VCC |
V |
| Current | |||||
| Motor output current |
1, 3, 20, 22 |
IM |
-850 |
+850 |
mA |
| Logic inputs |
9, 10, 13, 14 |
II |
-10 |
mA | |
| Analog inputs |
7, 8, 15, 16 |
IA |
-10 |
mA | |
| Temperature | |||||
| Operating junction temperature |
TJ |
-40 |
+150 |
||
| Storage temperature |
TS |
-55 |
+150 |
||
| Power Dissipation (Package Data) | |||||
| Power dissipation at TBW = +25, DIP and PLCC package |
PD |
5 |
W | ||
| Power dissipation at TBW = +125, DIP package |
PD |
2.2 |
W | ||
| Power dissipation at TBW = +125, PLCC package |
PD |
2.6 |
W |
PBL3775N Features
• Dual chopper driver in a single package.
• Operation down to -40.
• 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.
PBL3775N Connection Diagram
PBL3775N
PDF/DataSheet Download
- Datasheet: PBL3775N
- File Size: 165236 KB
- Manufacturer: ERICSSON [Ericsson]
- Click here to Download
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