Datasheet LTC3805-5 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Adjustable Frequency Current Mode Flyback/Boost/SEPIC DC/DC Controller |
| Pages / Page | 20 / 4 — ELECTRICAL CHARACTERISTICS Note 1:. Note 3:. Note 4:. Note 2:. Note 5:. … |
| File Format / Size | PDF / 265 Kb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS Note 1:. Note 3:. Note 4:. Note 2:. Note 5:. Note 6:. Note 7:. Note 8:
Model Line for this Datasheet
Text Version of Document
LTC3805-5
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
TJ is calculated from the ambient temperature TA and power may cause permanent damage to the device. Exposure to any Absolute dissipation PD according to the following formula: Maximum Rating condition for extended periods may affect device TJ = TA + (PD • 45°C/W) reliability and lifetime.
Note 4:
Dynamic supply current is higher due to the gate charge being
Note 2:
The LTC3805-5 is tested under pulsed conditions such that delivered at the switching frequency. TJ ≈ TA. The LTC3805E-5 is guaranteed to meet specifications from
Note 5:
The LTC3805-5 is tested in a feedback loop that servos V 0°C to 85°C. Specifications over the –40°C to 85°C operating junction FB to the output of the error amplifier while maintaining I temperature range are assured by design, characterization and correlation TH at the midpoint of the current limit range. with statistical process controls. The LTC3805I-5 is guaranteed over the –40°C to 125°C operating junction temperature range, the LTC3805H-5 is
Note 6:
Peak current sense voltage is reduced dependent on duty cycle guaranteed over the full –40°C to 150°C operating junction temperature and an optional external resistor in series with the SENSE pin. For range and the LTC3805MP-5 is tested and guaranteed over the full –55°C details, refer to Programmable Slope Compensation in the Applications to 150°C operating temperature range. High junction temperatures Information section. degrade operating lifetimes. Operating lifetime is derated at junction
Note 7:
Guaranteed by design. temperatures greater than 125°C. Note that the maximum ambient
Note 8:
Overcurrent threshold voltage is reduced dependent on an temperature consistent with these specifications is determined by specific optional external resistor in series with the OC pin. For details, refer to operating conditions in conjunction with board layout, the rated package Programmable Overcurrent in the Applications Information section. thermal resistance and other environmental factors. 38055fe 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration order information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
TJ is calculated from the ambient temperature TA and power may cause permanent damage to the device. Exposure to any Absolute dissipation PD according to the following formula: Maximum Rating condition for extended periods may affect device TJ = TA + (PD • 45°C/W) reliability and lifetime.
Note 4:
Dynamic supply current is higher due to the gate charge being
Note 2:
The LTC3805-5 is tested under pulsed conditions such that delivered at the switching frequency. TJ ≈ TA. The LTC3805E-5 is guaranteed to meet specifications from
Note 5:
The LTC3805-5 is tested in a feedback loop that servos V 0°C to 85°C. Specifications over the –40°C to 85°C operating junction FB to the output of the error amplifier while maintaining I temperature range are assured by design, characterization and correlation TH at the midpoint of the current limit range. with statistical process controls. The LTC3805I-5 is guaranteed over the –40°C to 125°C operating junction temperature range, the LTC3805H-5 is
Note 6:
Peak current sense voltage is reduced dependent on duty cycle guaranteed over the full –40°C to 150°C operating junction temperature and an optional external resistor in series with the SENSE pin. For range and the LTC3805MP-5 is tested and guaranteed over the full –55°C details, refer to Programmable Slope Compensation in the Applications to 150°C operating temperature range. High junction temperatures Information section. degrade operating lifetimes. Operating lifetime is derated at junction
Note 7:
Guaranteed by design. temperatures greater than 125°C. Note that the maximum ambient
Note 8:
Overcurrent threshold voltage is reduced dependent on an temperature consistent with these specifications is determined by specific optional external resistor in series with the OC pin. For details, refer to operating conditions in conjunction with board layout, the rated package Programmable Overcurrent in the Applications Information section. thermal resistance and other environmental factors. 38055fe 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration order information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
