Moteur de recherche de fiches techniques de composants électroniques |
|
LM3481QMM Fiches technique(PDF) 2 Page - Texas Instruments |
|
LM3481QMM Fiches technique(HTML) 2 Page - Texas Instruments |
2 / 30 page LM3481 VIN ISEN COMP FB AGND UVLO VCC DR PGND FA/SYNC/SD 1 2 3 4 5 6 7 8 9 10 LM3481 SNVS346E – NOVEMBER 2007 – REVISED APRIL 2012 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. CONNECTION DIAGRAM Figure 2. 10-Lead VSSOP Package (DGS-10 Package) PIN DESCRIPTIONS Pin Name Pin Number Description ISEN 1 Current sense input pin. Voltage generated across an external sense resistor is fed into this pin. UVLO 2 Under voltage lockout pin. A resistor divider from VIN to ground is connected to the UVLO pin. The ratio of these resistances determine the input voltage which allows switching and the hysteresis to disable switching. COMP 3 Compensation pin. A resistor and capacitor combination connected to this pin provides compensation for the control loop. FB 4 Feedback pin. Inverting input of the error amplifier. AGND 5 Analog ground pin. Internal bias circuitry reference. Should be connected to PGND at a single point. FA/SYNC/SD 6 Frequency adjust, synchronization, and shutdown pin. A resistor connected from this pin to ground sets the oscillator frequency. An external clock signal at this pin will synchronize the controller to the frequency of the clock. A high level on this pin for ≥ 30 µs will turn the device off and the device will then draw 5 µA from the supply typically. PGND 7 Power ground pin. External power circuitry reference. Should be connected to AGND at a single point. DR 8 Drive pin of the IC. The gate of the external MOSFET should be connected to this pin. VCC 9 Driver supply voltage pin. A bypass capacitor must be connected from this pin to PGND. See DRIVER SUPPLY CAPACITOR SELECTION section. VIN 10 Power supply input pin. 2 Submit Documentation Feedback Copyright © 2007–2012, Texas Instruments Incorporated Product Folder Links: LM3481 |
Numéro de pièce similaire - LM3481QMM |
|
Description similaire - LM3481QMM |
|
|
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 |