Electronic Components Datasheet Search |
|
LM5121MHXNOPB Datasheet(PDF) 4 Page - Texas Instruments |
|
LM5121MHXNOPB Datasheet(HTML) 4 Page - Texas Instruments |
4 / 43 page LM5121/LM5121-Q1 SNVS963A – SEPTEMBER 2013 – REVISED SEPTEMBER 2013 www.ti.com ELECTRICAL CHARACTERISTICS Unless otherwise specified, these specifications apply for -40°C ≤ TJ ≤ +125°C, VVIN = 12 V, VVCC = 8.3 V, RT = 20 kΩ, no load on LO and HO. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN SUPPLY ISHUTDOWN VIN shutdown current VUVLO = 0 V 9 17 µA IBIAS VIN operating current (exclude the current VUVLO = 2 V, non-switching 4 5 mA into RT resistor) VCC REGULATOR VCC(REG) VCC regulation No load 6.9 7.6 8.3 VVIN = 4.5 V, no external load 0.25 V VCC dropout (VIN to VCC) VVIN = 4.5 V, IVCC = 25 mA 0.28 0.5 VCC sourcing current limit VVCC = 0 V 50 62 VVCC = 8.3 V 3.5 5 mA VCC operating current (exclude the current IVCC into RT resistor) VVCC = 12 V 4.5 8 VCC rising, VVIN = 4.5 V 3.9 4.0 4.1 VCC undervoltage threshold VCC falling, VVIN = 4.5 V 3.7 V VCC undervoltage hysteresis 0.385 UNDERVOLTAGE LOCKOUT UVLO threshold UVLO rising 1.17 1.20 1.23 V UVLO hysteresis current VUVLO = 1.4 V 7 10 13 µA UVLO standby threshold UVLO rising 0.3 0.4 0.5 V UVLO standby hysteresis 0.1 0.125 MODE Diode emulation mode threshold MODE rising 1.20 1.24 1.28 V Diode emulation mode hysteresis 0.1 Default MODE voltage 145 155 170 mV COMP rising, measured at COMP 1.290 Default skip cycle threshold V COMP falling, measured at COMP 1.245 Skip cycle hysteresis Measured at COMP 40 mV ERROR AMPLIFIER VREF FB reference voltage Measured at FB, VFB= VCOMP 1.188 1.200 1.212 V FB input bias current VFB= VREF 5 nA ISOURCE = 2 mA, VVCC = 4.5 V 2.75 VOH COMP output high voltage ISOURCE = 2 mA, VVCC = 12 V 3.40 V VOL COMP output low voltage ISINK = 2 mA 0.25 AOL DC gain 80 dB fBW Unity gain bandwidth 3 MHz OSCILLATOR fSW1 Switching frequency 1 RT = 20 kΩ 400 450 500 kHz fSW2 Switching frequency 2 RT = 10 kΩ 775 875 975 RT output voltage 1.2 RT sync rising threshold RT rising 2.5 2.9 V RT sync falling threshold RT falling 1.6 2.0 Minimum sync pulse width 100 ns DISCONNECTION SWITCH CONTROL IDIS-SOURCE DG current source UVLO = 2 V, Sourcing 25 uA IDIS-SINK DG current sink Inrush Control, Sinking 67 DG discharge switch RDS-ON Circuit Breaker 38 Ω 4 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: LM5121/LM5121-Q1 |
Similar Part No. - LM5121MHXNOPB |
|
Similar Description - LM5121MHXNOPB |
|
|
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 |