 |
Moteur de recherche de fiches techniques de composants électroniques |
|
|
Moteur de recherche de fiches techniques de composants électroniques |
|
LMZ23608 Fiches technique(PDF) 5 Page - Texas Instruments |
|
|
||||||||||||||||||||||||||||||
LMZ23608 Fiches technique(HTML) 5 Page - Texas Instruments |
|
|
5 / 29 page  LMZ23608 www.ti.com SNVS708D – MARCH 2011 – REVISED OCTOBER 2011 Electrical Characteristics Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: VIN = 12V, VOUT = 3.3V Min Typ Max Symbol Parameter Conditions Units (1) (2) (1) SYSTEM PARAMETERS Enable Control VEN EN threshold VEN rising 1.096 1.274 1.452 V IEN-HYS EN hysteresis source current VEN > 1.274V 13 µA Soft-Start ISS SS source current VSS = 0V 40 50 60 µA tSS Internal soft-start interval 1.6 msec Current Limit ICL Current limit threshold d.c. average 10.5 A Internal Switching Oscillator fosc Free-running oscillator frequency Sync input connected to ground 314 359 404 kHz fsync Synchronization range Vsync = 3.3Vp-p 314 600 kHz VIL-sync Synchronization logic zero Relative to AGND 0.4 V amplitude VIH-sync Synchronization logic one Relative to AGND 1.8 V amplitude Sync d.c. Synchronization duty cycle range 15 50 85 % Regulation and Over-Voltage Comparator VFB In-regulation feedback voltage VSS >+ 0.8V 0.775 0.795 0.815 V IO = 8A VFB-OV Feedback over-voltage protection 0.86 V threshold IFB Feedback input bias current 5 nA IQ Non Switching Quiescent Current SYNC = 3.0V 3 mA ISD Shut Down Quiescent Current VEN = 0V 32 μA Dmax Maximum Duty Factor 85 % Thermal Characteristics TSD Thermal Shutdown Rising 165 °C TSD-HYST Thermal shutdown hysteresis Falling 15 °C θJA Junction to Ambient (3) Natural Convection 9.9 °C/W 225 LFPM 6.8 500 LFPM 5.2 θJC Junction to Case 1.0 °C/W PERFORMANCE PARAMETERS(4) ΔVO Output voltage ripple BW@ 20 MHz 24 mV PP ΔVO/ΔVIN Line regulation VIN = 12V to 20V, IOUT= 8A ±0.2 % ΔVO/ΔIOUT Load regulation VIN = 12V, IOUT= 0.001A to 8A 1 mV/A η Peak efficiency VIN = 12V VOUT = 3.3V IOUT = 5A 89.5 % η Full load efficiency VIN = 12V VOUT = 3.3V IOUT = 8A 88.5 % (1) Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL). (2) Typical numbers are at 25°C and represent the most likely parametric norm. (3) Theta JA measured on a 3.0” x 3.5” four layer board, with two ounce copper on outer layers and one ounce copper on inner layers, two hundred and ten 12 mil thermal vias, and 2W power dissipation. Refer to evaluation board application note layout diagrams. (4) Refer to BOM in Table 1. Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMZ23608 |
Numéro de pièce similaire - LMZ23608 |
|
Description similaire - LMZ23608 |
|
|
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 |
French ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
