Datasheet LT3724 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | High Voltage, Current Mode Switching Regulator Controller |
| Pages / Page | 26 / 4 — ELECTRICAL CHARACTERISTICS. Note 1:. Note 4:. Note 2:. Note 5:. Note 6:. … |
| File Format / Size | PDF / 322 Kb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS. Note 1:. Note 4:. Note 2:. Note 5:. Note 6:. Note 7:. Note 3:. Note 8:. TYPICAL PERFORMANCE CHARACTERISTICS
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Text Version of Document
LT3724
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings temperature range. The LT3724MP is 100% tested and guaranteed over may cause permanent damage to the device. Exposure to any Absolute the –55°C to 125°C operating junction temperature range. Maximum Rating condition for extended periods may affect device
Note 4:
VIN voltages below the start-up threshold (7.5V) are only reliability and lifetime. supported when the VCC is externally driven above 6.5V.
Note 2:
The LT3724 includes overtemperature protection that is intended
Note 5:
Operating range is dictated by MOSFET absolute maximum VGS. to protect the device during momentary overload conditions. Junction
Note 6:
Supply current specification does not include switch drive temperature will exceed 125°C when overtemperature protection is active. currents. Actual supply currents will be higher. Continuous operation above the specified maximum operating junction temperature may impair device reliability.
Note 7:
DC measurement of gate drive output “ON” voltage is typically 8.6V. Internal dynamic bootstrap operation yields typical gate “ON”
Note 3:
The LT3724E is guaranteed to meet performance specifications voltages of 9.8V during standard switching operation. Standard operation from 0°C to 125°C junction temperature. Specifications over the –40°C gate “ON” voltage is not tested but guaranteed by design. to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The
Note 8:
The –1V absolute maximum on the SW pin is a transient condition. LT3724I is guaranteed over the full –40°C to 125°C operating junction It is guaranteed by design and not subject to test.
TYPICAL PERFORMANCE CHARACTERISTICS Shutdown Threshold (Rising) Shutdown Threshold (Falling) vs Temperature vs Temperature V CC vs Temperature
1.38 1.26 8.2 ICC = 20mA 1.37 1.25 8.1 8.0 1.36 1.24 7.9 1.35 1.23 (V) V CC 7.8 1.34 1.22 7.7 1.33 1.21 SHUTDOWN THRESHOLD, RISING (V) 7.6 SHUTDOWN THRESHOLD, FALLING (V) 1.32 1.20 7.5 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3724 G01 3724 G02 3724 G03
VCC vs ICC(LOAD) VCC vs VIN ICC Current Limit vs Temperature
8.2 9 70 TA = 25°C ICC = 20mA 8.1 T 8 A = 25°C 60 8.0 7 50 7.9 (V) (V) 6 V CC 7.8 V CC 40 5 7.7 CURRENT LIMIT (mA) I CC 30 7.6 4 7.5 3 20 0 5 10 15 20 25 30 35 4 5 6 7 8 9 10 11 12 –50 –25 0 25 50 75 100 125 ICC (LOAD) (mA) VIN (V) TEMPERATURE (°C) 3724 G04 3724 G05 3724 G06 3724fd 4
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings temperature range. The LT3724MP is 100% tested and guaranteed over may cause permanent damage to the device. Exposure to any Absolute the –55°C to 125°C operating junction temperature range. Maximum Rating condition for extended periods may affect device
Note 4:
VIN voltages below the start-up threshold (7.5V) are only reliability and lifetime. supported when the VCC is externally driven above 6.5V.
Note 2:
The LT3724 includes overtemperature protection that is intended
Note 5:
Operating range is dictated by MOSFET absolute maximum VGS. to protect the device during momentary overload conditions. Junction
Note 6:
Supply current specification does not include switch drive temperature will exceed 125°C when overtemperature protection is active. currents. Actual supply currents will be higher. Continuous operation above the specified maximum operating junction temperature may impair device reliability.
Note 7:
DC measurement of gate drive output “ON” voltage is typically 8.6V. Internal dynamic bootstrap operation yields typical gate “ON”
Note 3:
The LT3724E is guaranteed to meet performance specifications voltages of 9.8V during standard switching operation. Standard operation from 0°C to 125°C junction temperature. Specifications over the –40°C gate “ON” voltage is not tested but guaranteed by design. to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The
Note 8:
The –1V absolute maximum on the SW pin is a transient condition. LT3724I is guaranteed over the full –40°C to 125°C operating junction It is guaranteed by design and not subject to test.
TYPICAL PERFORMANCE CHARACTERISTICS Shutdown Threshold (Rising) Shutdown Threshold (Falling) vs Temperature vs Temperature V CC vs Temperature
1.38 1.26 8.2 ICC = 20mA 1.37 1.25 8.1 8.0 1.36 1.24 7.9 1.35 1.23 (V) V CC 7.8 1.34 1.22 7.7 1.33 1.21 SHUTDOWN THRESHOLD, RISING (V) 7.6 SHUTDOWN THRESHOLD, FALLING (V) 1.32 1.20 7.5 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3724 G01 3724 G02 3724 G03
VCC vs ICC(LOAD) VCC vs VIN ICC Current Limit vs Temperature
8.2 9 70 TA = 25°C ICC = 20mA 8.1 T 8 A = 25°C 60 8.0 7 50 7.9 (V) (V) 6 V CC 7.8 V CC 40 5 7.7 CURRENT LIMIT (mA) I CC 30 7.6 4 7.5 3 20 0 5 10 15 20 25 30 35 4 5 6 7 8 9 10 11 12 –50 –25 0 25 50 75 100 125 ICC (LOAD) (mA) VIN (V) TEMPERATURE (°C) 3724 G04 3724 G05 3724 G06 3724fd 4
