MFG:ERICSSON Package Cooled:PLCC
MFG: ERICSSON
Package Cooled: PLCC
Description: The PBL 3776/1 is a switch-mode (chopper), constant-current controller IC intended for controlling ext...
The PBL 3776/1 is a switch-mode (chopper), constant-current controller IC intended for controlling external transistors in a high current stepper motor application.The IC has two channels one for each winding of a two-phase stepper motor. The circuit is similar to Ericsson´s PBL 3775/1. PBL 3776/1 is equipped with a Disable input to simplify half-stepping operation.
The PBL 3776/1 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 sections each containing four outputs, two source and two sink, intended to drive an external H-bridge.
Voltage supply requirements are +5 V for logic and +10 to +45 V for the outputs. The close match between the two driver channels guarantees consistent output current ratios and motor positioning accuracy.
| Parameter | Pin no.* | Symbol | Min | Max | Unit |
| Voltage | |||||
| Logic supply Output supply Logic inputs Analog inputs |
13 6, 19 10, 11, 14, 15 8, 9, 16, 17 |
VCC VBB VI VA |
0 0 -0.3 -0.3 |
7 45 6 VCC |
V V V V |
| Current | |||||
| Output current t=1mS Logic inputs Analog inputs |
2, 3, 4, 5, 20, 21, 22, 23 10, 11, 14, 15 8, 9, 16, 17 |
IO II IA |
-500 -10 -10 |
+500 | mA mA mA |
| Temperature | |||||
| Junction temperature Storage temperature |
TJ TS |
-55 | +150 +150 |
°C °C | |
PBL3771
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