Electronic Components Datasheet Search |
|
SC4540ULTRT Datasheet(PDF) 4 Page - Semtech Corporation |
|
SC4540ULTRT Datasheet(HTML) 4 Page - Semtech Corporation |
4 / 15 page 4 Electrical Characteristics (continued) SC4540 Parameter Symbol Conditions Min Typ Max Units Boost Converter Characteristics (continued) Switch Over-Current Protection I OCP 425 725 mA Switch Leakage Current I L(LX) V LX = 12V 0.01 1 μA Switch Saturation Voltage V SAT I LX = 0.3A 250 450 mV COMP Sourcing Current I COMP V COMP = 0.9V, T A = 25ºC 5 μA COMP Sinking Current V COMP = 0.9V, T A = 25ºC 6 OUT Over-Voltage Protection V OVP 38 43 V OUT Internal Pull-Down Current I OVP During OVP condition 1 mA OUT Bias Current I OUT V EN = V IN , V OUT = 20V 50 70 μA OUT Leakage Current V EN = 0V, V OUT = V IN = 12V 0.01 1 μA PWM Dimming Frequency Range(1)(2) f EN Applied to EN pin 100 50k Hz PWM Dimming Duty Cycle Range(1)(2) D EN 200Hz on EN pin 0 100 % Current Sink Characteristics BL Current Setting Range(3) I BL 130 mA BL Current Setting Accuracy T A = 25°C -3.5 3.5 % BL Leakage Current I L(BL) V EN = 0V, V BL = 2V 0.01 0.1 μA BL Current Line Regulation ΔI BL /ΔV IN V IN = 3.0 to 5.5V ±0.05 mA/V BL Voltage V BL 0.35 V ISET Bias Voltage V ISET 0.5 V ISET-to-I BL Gain A ISET 230 A/A Start-Up Time t start-up 1μs Notes: (1) Guaranteed by design. (2) See PWM Dimming description in the Applications Information section for limitations at high PWM dimming frequencies and low PWM dimming duty cycles. (3) Not recommended to program below 1mA with R ISET due to tolerance stackup. To produce output current less than 1mA, set the current > 1mA and use PWM dimming. |
Similar Part No. - SC4540ULTRT |
|
Similar Description - SC4540ULTRT |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | 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 |