Electronic Components Datasheet Search |
|
PBL3771-1 Datasheet(PDF) 1 Page - Ericsson |
|
PBL3771-1 Datasheet(HTML) 1 Page - Ericsson |
1 / 8 page February 1999 Description The PBL 3771/1 is a switch-mode, constant-current driver IC (chopper) with two channels, one for each winding of a two-phase stepper motor. The circuit is especially developed for use in microstepping applications in conjunction with the matching dual DAC (Digital-to-Analog Converter) PBM 3960. A complete driver system consists of these two ICs, a few passive components and a microprocessor for generation of the proper control and data codes required for microstepping. The PBL 3771/1 contains a clock oscillator, which is common for both driver channels; a set of comparators and flip-flops implementing the switching control; and two H-bridges with internal recirculation diodes. Voltage supply requirements are +5 V for logic and +10 to +45 V for the motor. Maximum output current is 650 mA per channel. A special logic function is used to select slow or fast current decay in the output stage for improved high-speed microstepping. The close match between the two driver channels guarantees consistent output current ratios and motor positioning accuracy. PBL 3771/1 Precision Stepper Motor Driver Figure 1. Block diagram. 28-pin PLCC package 22-pin plastic DIP package 24-pin SO package Key Features • Dual chopper driver in a single package. • 650 mA output current per channel. • Close matching between channels for high microstepping accuracy. • Selectable slow/fast current decay for improved high-speed microstepping. • Improved low-level linearity. • Specially matched to Dual DAC PBM 3960. • Selection of packages, 22-pin “batwing” DIP, 24 pin "batwing" SOIC or 28-lead PLCC with lead-frame for heat-sinking through PC board copper. RC PBL 3771/1 VMM1 VMM2 M A1 M B1 M B2 M A2 GND C2 V R2 CD 2 Phase 2 V CC C 1 VR1 CD1 Phase 1 E 1 E 2 V CC S R Q + – + – Logic S R Q + – + – Logic + – 1 |
Similar Part No. - PBL3771-1 |
|
Similar Description - PBL3771-1 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |