Datasheet LT4351 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | MOSFET Diode-OR Controller |
| Pages / Page | 20 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| File Format / Size | PDF / 346 Kb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
Model Line for this Datasheet
Text Version of Document
LT4351
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT = 5V, VDD = 16.1V, VUV = 0.4V, VOV = 0.2V, GATE Open, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IOV OV Input Bias Current VOV = VOV(TH) – 10mV l –100 –400 V VF(ON) FAULT Pin On-Voltage IF = 5mA in Fault Condition l 0.14 0.25 V IF(OFF) FAULT Pin Leakage Current VF = 30V, VIN = 4.9V l 0.04 1 µA
Boost Supply
VBR Boost Regulation Trip Voltage Measured as VDD to VIN, Rising Edge l 10.2 10.7 11.4 V tOFF Boost Supply Off-Time 600 ns ISWLIM Boost Supply Switch Current Limit l 350 450 650 mA
Gate Drive
VIOR Input-to-Output Regulated Voltage l 4 15 25 mV ∆VGL Gate Voltage Limit VIN = 5V, VOUT = 4.9V, VDD = 13V Measured with l –2.3 –3 V Respect to VDD ∆VG(MAX) Maximum Gate Voltage VIN = 5V, VOUT = 4.9V, VDD = 16.1V Measured with l 7 7.4 7.8 V Respect to VOUT VG(OFF) Gate Off-Voltage VOUT = 5.1V l 0.16 0.30 V IGSO Gate Source Current VOUT = 4.9V, VGATE = 9V 0.670 A IGSK Gate Sink Current VOUT = 5.1V, VGATE = 9V 0.670 A VDD Operating Range l 30 V IVDD VDD Supply Current VIN = 1.2V, VOUT = 1.1V, VDD = 12.3V, GATE Open l 3 4 mA VIN = 18V, VOUT = 17.9V, VDD = 29.1V, GATE Open l 3.6 5.6 mA
Status Functions
∆VGIS Minimum Gate Voltage for Turning VOUT = 4.9V, ISTATUS = 1mA l 0.75 1 V On Status VIOGF VIN to VOUT Fault Voltage with VOUT Falling, Measured with Respect to VIN 185 210 230 mV Open Gate VST(ON) Status Pin On-Voltage IST = 5mA, VOUT = 4.9V, Status On l 0.13 0.25 V IST(OFF) Status Pin Leakage Current VST = 30V, Status Off, VIN = 4.9V l 0.04 1 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 2:
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 • 120°C/W) reliability and lifetime. 4351fd 3 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 Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT = 5V, VDD = 16.1V, VUV = 0.4V, VOV = 0.2V, GATE Open, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IOV OV Input Bias Current VOV = VOV(TH) – 10mV l –100 –400 V VF(ON) FAULT Pin On-Voltage IF = 5mA in Fault Condition l 0.14 0.25 V IF(OFF) FAULT Pin Leakage Current VF = 30V, VIN = 4.9V l 0.04 1 µA
Boost Supply
VBR Boost Regulation Trip Voltage Measured as VDD to VIN, Rising Edge l 10.2 10.7 11.4 V tOFF Boost Supply Off-Time 600 ns ISWLIM Boost Supply Switch Current Limit l 350 450 650 mA
Gate Drive
VIOR Input-to-Output Regulated Voltage l 4 15 25 mV ∆VGL Gate Voltage Limit VIN = 5V, VOUT = 4.9V, VDD = 13V Measured with l –2.3 –3 V Respect to VDD ∆VG(MAX) Maximum Gate Voltage VIN = 5V, VOUT = 4.9V, VDD = 16.1V Measured with l 7 7.4 7.8 V Respect to VOUT VG(OFF) Gate Off-Voltage VOUT = 5.1V l 0.16 0.30 V IGSO Gate Source Current VOUT = 4.9V, VGATE = 9V 0.670 A IGSK Gate Sink Current VOUT = 5.1V, VGATE = 9V 0.670 A VDD Operating Range l 30 V IVDD VDD Supply Current VIN = 1.2V, VOUT = 1.1V, VDD = 12.3V, GATE Open l 3 4 mA VIN = 18V, VOUT = 17.9V, VDD = 29.1V, GATE Open l 3.6 5.6 mA
Status Functions
∆VGIS Minimum Gate Voltage for Turning VOUT = 4.9V, ISTATUS = 1mA l 0.75 1 V On Status VIOGF VIN to VOUT Fault Voltage with VOUT Falling, Measured with Respect to VIN 185 210 230 mV Open Gate VST(ON) Status Pin On-Voltage IST = 5mA, VOUT = 4.9V, Status On l 0.13 0.25 V IST(OFF) Status Pin Leakage Current VST = 30V, Status Off, VIN = 4.9V l 0.04 1 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 2:
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 • 120°C/W) reliability and lifetime. 4351fd 3 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 Package Description Revision History Typical Application Related Parts
