 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LT1766IFE-PBF Datasheet(PDF) 5 Page - Linear Technology |
|
||||||||||||||||||||||||||||||
LT1766IFE-PBF Datasheet(HTML) 5 Page - Linear Technology |
|
|
5 / 30 page  LT1766/LT1766-5 5 1766fc ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS fSW Line Regulation 5.5V ≤ VIN ≤ 60V l 0.05 0.15 %/V fSW Frequency Shifting Threshold Df = 10kHz 0.8 V Minimum Input Voltage (Note 3) l 4.6 5.5 V Minimum Boost Voltage (Note 4) ISW ≤ 0.75A l 1.8 3 V Boost Current (Note 5) Boost = VIN + 5V, ISW = 0.5A Boost = VIN + 5V, ISW = 0.75A l l 12 45 40 100 mA mA Input Supply Current (IVIN) (Note 6) VBIAS = 5V 1.4 2.2 mA Bias Supply Current (IBIAS) (Note 6) VBIAS = 5V 2.9 4.2 mA Shutdown Supply Current SHDN = 0V, VIN ≤ 60V, SW = 0V, VC Open l 25 120 500 μA μA Lockout Threshold VC Open l 2.3 2.42 2.68 V Shutdown Thresholds VC Open, Shutting Down VC Open, Starting Up l l 0.15 0.25 0.37 0.45 0.9 0.9 V V Minimum SYNC Amplitude l 1.5 2.2 V SYNC Frequency Range 228 700 kHz SYNC Input Resistance 20 kΩ (LT1766H Grade) The l denotes specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. VIN = 15V, VC = 1.5V, SHDN = 1V, BOOST open circuit, SW open circuit, unless otherwise noted. Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Gain is measured with a VC swing equal to 200mV above the low clamp level to 200mV below the upper clamp level. Note 3: Minimum input voltage is not measured directly, but is guaranteed by other tests. It is defined as the voltage where internal bias lines are still regulated so that the reference voltage and oscillator remain constant. Actual minimum input voltage to maintain a regulated output will depend upon output voltage and load current. See Applications Information. Note 4: This is the minimum voltage across the boost capacitor needed to guarantee full saturation of the internal power switch. Note 5: Boost current is the current flowing into the BOOST pin with the pin held 5V above input voltage. It flows only during switch on time. Note 6: Input supply current is the quiescent current drawn by the input pin when the BIAS pin is held at 5V with switching disabled. Bias supply current is the current drawn by the BIAS pin when the BIAS pin is held at 5V. Total input referred supply current is calculated by summing input supply current (IVIN) with a fraction of bias supply current (IBIAS): ITOTAL = IVIN + (IBIAS)(VOUT/VIN) with VIN = 15V, VOUT = 5V, IVIN = 1.4mA, IBIAS = 2.9mA, ITOTAL = 2.4mA. Note 7: Switch on-resistance is calculated by dividing VIN to SW voltage by the forced current. See Typical Performance Characteristics for the graph of switch voltage at other currents. Note 8: The LT1766EGN, LT1766EGN-5, LT1766EFE and LT1766EFE-5 are guaranteed to meet performance specifications from 0°C to 125°C junction temperature. Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The LT1766IGN, LT1766IGN-5, LT1766IFE and LT1766IFE-5 are guaranteed over the full –40°C to 125°C operating junction temperature range. The LT1766HGN and LT1766HFE are guaranteed over the full –40°C to 140°C operating junction temperature range. Note 9: Transconductance and voltage gain refer to the internal amplifier exclusive of the voltage divider. To calculate gain and transconductance, refer to the SENSE pin on fixed voltage parts. Divide the values shown by the ratio VOUT/1.219. Note 10: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 140°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. Note 11: High junction temperatures degrade operating lifetimes. Operating lifetime at junction temperatures between 125°C and 140°C is derated to 1000 hours. |
Similar Part No. - LT1766IFE-PBF |
|
Similar Description - LT1766IFE-PBF |
|
|
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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
