Moteur de recherche de fiches techniques de composants électroniques |
|
LB1876 Fiches technique(PDF) 6 Page - Sanyo Semicon Device |
|
LB1876 Fiches technique(HTML) 6 Page - Sanyo Semicon Device |
6 / 12 page LB1876 No.6201-6/12 Pin Function Pin No. Pin name Function Equivalent curcuit 2 1 36 OUT1 OUT2 OUT3 Motor drive output pins. PWM controls duty cycle ratio by lower transistors. Connect Schottky diodes between the outputs and VCC. 34 GND3 Output block ground. 28 29 VM1 VM2 Output block power supply and output current detection. VM1 and VM2 are short-circuited and used. Connect low-resistance resistors Rf between these pins and VCC. The output current is limited to the current value set by IOUT = VREF/Rf. 1 2 36 34 28 VM1 29 VM2 VCC 300 Ω 3 35 NC NC Since these are not connected internally, they can be used for wiring. 8 9 6 7 4 5 IN1+ IN1− IN2+ IN2− IN3+ IN3− Hall device input pins. These inputs return a high level when IN+ > IN− and a low level when IN− > IN+. A Hall signal amplitude of at least 100mVp-p (differential) is desirable. Insert a capacitor between IN+ and IN− if noise on the Hall signal is a problem. 5 7 9 VREG 300 Ω 300 Ω 4 6 8 10 11 FGIN+ FGIN− FG comparator input pins. If noise on the FG signal is a problem, insert either a capacitor or a filter consisting of a capacitor and a resistor. 11 VREG 300 Ω 300 Ω 10 12 GND1 Control circuit block ground. 13 GND2 Sub-ground. 14 PWM PWM oscillation frequency setting pin. Connect a capacitor between this pin and ground. A capacitance of 1800pF for C sets the frequency to approximately 37kHz. 14 VREG 200 Ω 2k Ω 15 FC Current control circuit frequency characteristics compensation pin. Insert a capacitor (on the order of 0.01 to 0.1 µF) between this pin and ground. The output duty is determined by the ratio of the voltage on this pin and the PWM oscillator waveform. 15 VREG 300 Ω Continued on next page. |
Numéro de pièce similaire - LB1876_09 |
|
Description similaire - LB1876_09 |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants 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 |