Datasheet LTC3810-5 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | 60V Current Mode Synchronous Switching Regulator Controller |
| Páginas / Página | 38 / 4 — elecTrical characTerisTics The. denotes specifications which apply over … |
| Formato / tamaño de archivo | PDF / 544 Kb |
| Idioma del documento | Inglés |
elecTrical characTerisTics The. denotes specifications which apply over the full operating
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LTC3810-5
elecTrical characTerisTics The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 2), INTVCC = DRVCC = VBOOST = VON = VRNG = SHDN = UVIN = VEXTVCC = VNDRV = 5V, VMODE/SYNC = VSENSE+ = VSENSE– = VBGRTN = VSW = 0V, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS PGOOD Output
DVFBOV PGOOD Upper Threshold VFB Rising 7.5 10 12.5 % PGOOD Lower Threshold VFB Falling –7.5 –10 –12.5 % DVFB,HYST PGOOD Hysterisis VFB Returning 1.5 3 % VPGOOD PGOOD Low Voltage IPGOOD = 5mA 0.3 0.6 V IPGOOD PGOOD Leakage Current VPGOOD = 5V 0 2 µA PG Delay PGOOD Delay VFB Falling 120 µs
Tracking
ISS/TRACK SS/TRACK Source Current VSS/TRACK > 0.5V 0.7 1.4 2.5 µA VFB,TRACK Feedback Voltage at Tracking VTRACK = 0V, ITH = 1.2V (Note 4) –0.018 V VTRACK = 0.5V, ITH = 1.2V (Note 4) 0.48 0.5 0.52 V
VCC Regulators
VEXTVCC EXTVCC Switchover Voltage EXTVCC Rising l 4.45 4.7 V EXTVCC Hysterisis 0.1 0.25 0.4 V VINTVCC,1 INTVCC Voltage from EXTVCC 6V < VEXTVCC < 15V 5.2 5.5 5.8 V DVEXTVCC,1 VEXTVCC - VINTVCC at Dropout ICC = 20mA, VEXTVCC = 5V 75 150 mV DVLOADREG,1 INTVCC Load Regulation from EXTVCC ICC = 0mA to 20mA, VEXTVCC = 10V 0.01 % VINTVCC,2 INTVCC Voltage from NDRV Regulator Linear Regulator in Operation 5.2 5.5 5.8 V DVLOADREG,2 INTVCC Load Regulation from NDRV ICC = 0mA to 20mA, VEXTVCC = 0 0.01 % INDRV Current into NDRV Pin VNDRV – VINTVCC = 3V 20 40 60 µA INDRVTO Linear Regulator Timeout Enable 210 270 350 µA Threshold VCCSR Maximum Supply Voltage Trickle Charger Shunt Regulator 15 V ICCSR Maximum Current into NDRV/INTVCC Trickle Charger Shunt Regulator, 10 mA INTVCC ≤ 16.7V (Note 8)
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings dissipation PD according to the following formula: may cause permanent damage to the device. Exposure to any Absolute LTC3810-5: TJ = TA + (PD • 34°C/W) Maximum Rating condition for extended periods may affect device
Note 4:
The LTC3810-5 is tested in a feedback loop that servos V reliability and lifetime. FB to the reference voltage with the ITH pin forced to a voltage between 1V and 2V.
Note 2:
The LTC3810-5 is tested under pulsed load conditions such that
Note 5:
The dynamic input supply current is higher due to the power TJ ≈ TA. The LTC3810E-5 is guaranteed to meet performance specifications MOSFET gate charging being delivered at the switching frequency from 0°C to 85°C. Specifications over the –40°C to 125°C operating (Q junction temperature range are assured by design, characterization and G • fOSC). correlation with statistical process controls. The LTC3810I-5 is guaranteed
Note 6:
Guaranteed by design. Not subject to test. to meet performance specifications over the full –40°C to 125°C operating
Note 7:
This IC includes overtemperature protection that is intended junction temperature range. The LTC3810H-5 is guaranteed to meet to protect the device during momentary overload conditions. Junction performance specifications over the full –40°C to 150°C operating junction temperature will exceed 150°C when overtemperature protection is active. temperature range. High junction temperatures degrade operating lifetimes; Continuous operation above the specified maximum operating junction operating lifetime is derated for junction temperatures greater than 125°C. temperature may impair device reliability.
Note 3:
T
Note 8:
I J is calculated from the ambient temperature TA and power CC is the sum of current into NDRV and INTVCC.
Similar Parts Comparison PARAMETER LTC3810 LTC3810-5 LTC3812-5
Maximum VIN 100V 60V 60V MOSFET Gate Drive 6.35V to 14V 4.5V to 14V 4.5V to 14V INTVCC UV+ 6.2V 4.2V 4.2V INTVCC UV– 6V 4V 4V 38105fd 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
elecTrical characTerisTics The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 2), INTVCC = DRVCC = VBOOST = VON = VRNG = SHDN = UVIN = VEXTVCC = VNDRV = 5V, VMODE/SYNC = VSENSE+ = VSENSE– = VBGRTN = VSW = 0V, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS PGOOD Output
DVFBOV PGOOD Upper Threshold VFB Rising 7.5 10 12.5 % PGOOD Lower Threshold VFB Falling –7.5 –10 –12.5 % DVFB,HYST PGOOD Hysterisis VFB Returning 1.5 3 % VPGOOD PGOOD Low Voltage IPGOOD = 5mA 0.3 0.6 V IPGOOD PGOOD Leakage Current VPGOOD = 5V 0 2 µA PG Delay PGOOD Delay VFB Falling 120 µs
Tracking
ISS/TRACK SS/TRACK Source Current VSS/TRACK > 0.5V 0.7 1.4 2.5 µA VFB,TRACK Feedback Voltage at Tracking VTRACK = 0V, ITH = 1.2V (Note 4) –0.018 V VTRACK = 0.5V, ITH = 1.2V (Note 4) 0.48 0.5 0.52 V
VCC Regulators
VEXTVCC EXTVCC Switchover Voltage EXTVCC Rising l 4.45 4.7 V EXTVCC Hysterisis 0.1 0.25 0.4 V VINTVCC,1 INTVCC Voltage from EXTVCC 6V < VEXTVCC < 15V 5.2 5.5 5.8 V DVEXTVCC,1 VEXTVCC - VINTVCC at Dropout ICC = 20mA, VEXTVCC = 5V 75 150 mV DVLOADREG,1 INTVCC Load Regulation from EXTVCC ICC = 0mA to 20mA, VEXTVCC = 10V 0.01 % VINTVCC,2 INTVCC Voltage from NDRV Regulator Linear Regulator in Operation 5.2 5.5 5.8 V DVLOADREG,2 INTVCC Load Regulation from NDRV ICC = 0mA to 20mA, VEXTVCC = 0 0.01 % INDRV Current into NDRV Pin VNDRV – VINTVCC = 3V 20 40 60 µA INDRVTO Linear Regulator Timeout Enable 210 270 350 µA Threshold VCCSR Maximum Supply Voltage Trickle Charger Shunt Regulator 15 V ICCSR Maximum Current into NDRV/INTVCC Trickle Charger Shunt Regulator, 10 mA INTVCC ≤ 16.7V (Note 8)
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings dissipation PD according to the following formula: may cause permanent damage to the device. Exposure to any Absolute LTC3810-5: TJ = TA + (PD • 34°C/W) Maximum Rating condition for extended periods may affect device
Note 4:
The LTC3810-5 is tested in a feedback loop that servos V reliability and lifetime. FB to the reference voltage with the ITH pin forced to a voltage between 1V and 2V.
Note 2:
The LTC3810-5 is tested under pulsed load conditions such that
Note 5:
The dynamic input supply current is higher due to the power TJ ≈ TA. The LTC3810E-5 is guaranteed to meet performance specifications MOSFET gate charging being delivered at the switching frequency from 0°C to 85°C. Specifications over the –40°C to 125°C operating (Q junction temperature range are assured by design, characterization and G • fOSC). correlation with statistical process controls. The LTC3810I-5 is guaranteed
Note 6:
Guaranteed by design. Not subject to test. to meet performance specifications over the full –40°C to 125°C operating
Note 7:
This IC includes overtemperature protection that is intended junction temperature range. The LTC3810H-5 is guaranteed to meet to protect the device during momentary overload conditions. Junction performance specifications over the full –40°C to 150°C operating junction temperature will exceed 150°C when overtemperature protection is active. temperature range. High junction temperatures degrade operating lifetimes; Continuous operation above the specified maximum operating junction operating lifetime is derated for junction temperatures greater than 125°C. temperature may impair device reliability.
Note 3:
T
Note 8:
I J is calculated from the ambient temperature TA and power CC is the sum of current into NDRV and INTVCC.
Similar Parts Comparison PARAMETER LTC3810 LTC3810-5 LTC3812-5
Maximum VIN 100V 60V 60V MOSFET Gate Drive 6.35V to 14V 4.5V to 14V 4.5V to 14V INTVCC UV+ 6.2V 4.2V 4.2V INTVCC UV– 6V 4V 4V 38105fd 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts