Electronic Components Datasheet Search |
|
LT4256-3 Datasheet(PDF) 3 Page - Linear Technology |
|
LT4256-3 Datasheet(HTML) 3 Page - Linear Technology |
3 / 20 page LT4256-3 3 42563f VFB FB Voltage Threshold FB High-to-Low Transition q 3.95 3.99 4.03 V FB Low-to-High Transition q 4.20 4.45 4.65 V VFBHYS FB Hysteresis Voltage 0.3 0.45 0.60 V VOLPGD PWRGD Output Low Voltage IO = 1.6mA 0.25 0.4 V IO = 5mA 0.60 1.0 V IPWRGD PWRGD Pin Leakage Current VPWRGD = 80V 0.1 1 µA IINFB FB Input Current FB = 4.5V –0.1 –1 µA ITIMERPU TIMER Pull-Up Current q – 85 – 115 –145 µA ITIMERPD TIMER Pull-Down Current q 1.5 3 5 µA VTHTIMER TIMER Shutdown Threshold CTIMER = 10nF q 4.3 4.65 5 V DTIMER Duty Cycle (RETRY Mode) q 1.5 3 4.5 % VRETRYTH RETRY Threshold q 0.4 0.85 1.2 V IINRTR RETRY Input Current RETRY = GND –87 –130 µA tPHLUV UV Low to GATE Low CGATE = 100pF 1.7 3 µs tPLHUV UV High to GATE High CGATE = 100pF 6 9 µs tPHLFB FB Low to PWRGD Low 0.8 2 µs tPLHFB FB High to PWRGD High 3.2 5 µs tPHLSENSE (VCC – VSENSE) High to GATE Low VCC – VSENSE = 275mV 1 3 µs ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 48V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: An internal clamp limits the GATE pin to a minimum of 10V above VCC. Driving this pin to a voltage beyond the clamp voltage may damage the part. TYPICAL PERFOR A CE CHARACTERISTICS ICC vs Temperature SENSE Regulation Voltage vs Temperature ICC vs VCC TEMPERATURE ( °C) –50 10 15 20 48 58 –25 025 50 42563 G01 75 100 53 FB = 0V FB > 2V VCC (V) 10 2.0 2.5 3.5 40 60 42563 G02 1.5 1.0 20 30 50 70 80 0.5 0 3.0 TEMPERATURE ( °C) –50 0 0.5 1.0 1.5 2.5 –25 025 50 42563 G03 75 100 2.0 VCC = 48V Specifications are at TA = 25°C unless otherwise noted. |
Similar Part No. - LT4256-3 |
|
Similar Description - LT4256-3 |
|
|
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 |