Datasheet LTC7862 (Analog Devices) - 4

LTC7862
ELECTRICAL CHARACTERISTICS The
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denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2), VIN = 12V, VRUN = 5V, VEXTVCC = 0V, VDRVUV = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Gate Driver
TG Pull-up On-Resistance VDRVUV = INTVCC 2.2 Ω TG Pull-down On-Resistance 1.0 Ω BG Pull-up On-Resistance VDRVUV = INTVCC 2.0 Ω BG Pull-down On-Resistance 1.0 Ω TG Transition Time: (Note 6) VDRVUV = INTVCC Rise Time CLOAD = 3300pF 25 ns Fall Time CLOAD = 3300pF 15 ns BG Transition Time: (Note 6) VDRVUV = INTVCC Rise Time CLOAD = 3300pF 25 ns Fall Time CLOAD = 3300pF 15 ns Top Gate Off to Bottom Gate On Delay CLOAD = 3300pF Each Driver, VDRVUV = INTVCC Synchronous Switch-On Delay Time (Note 6) 55 ns Bottom Gate Off to Top Gate On Delay CLOAD = 3300pF Each Driver, VDRVUV = INTVCC Top Switch-On Delay Time (Note 6) 50 ns tON(MIN) TG Minimum On-Time (Note 7) VDRVUV = INTVCC 80 ns
Charge Pump for High Side Driver Supply
ICPUMP Charge Pump Output Current VBOOST =16V, VSW = 12V, VFREQ = 0V 65 µA VBOOST =19V, VSW = 12V, VFREQ = 0V 55 µA
DRVCC LDO Regulator
DRVCC Voltage from VIN LDO VEXTVCC = 0V 7V < VIN < 150V, DRVUV = 0V 5.8 6.0 6.2 V 11V < VIN < 150V, DRVUV = INTVCC 8.6 9.0 9.4 V DRVCC Load Regulation from VIN LDO ICC = 0mA to 50mA, VEXTVCC = 0V DRVUV = 0V 1.4 2.5 % DRVUV = INTVCC 0.9 2.0 % DRVCC Voltage from EXTVCC LDO 7V < VEXTVCC < 13V, DRVUV = 0V 5.8 6.0 6.2 V 11V < VEXTVCC < 13V, DRVUV = INTVCC 8.6 9.0 9.4 V DRVCC Load Regulation from ICC = 0mA to 50mA EXTVCC LDO DRVUV = 0V, VEXTVCC = 8.5V 0.7 2.0 % DRVUV = INTVCC, VEXTVCC = 13V 0.5 2.0 % EXTVCC LDO Switchover Voltage EXTVCC Ramping Positive DRVUV = 0V 4.5 4.7 4.9 V DRVUV = INTVCC 7.4 7.7 8.0 V EXTVCC Hysteresis 250 mV
INTVCC LDO Regulator
VINTVCC INTVCC Voltage ICC = 0mA to 2mA 4.7 5.0 5.2 V
Oscillator and Phase-Locked Loop
Programmable Frequency RFREQ = 25k 105 kHz Programmable Frequency RFREQ = 65k 375 440 505 kHz Programmable Frequency RFREQ =105k 835 kHz Low Fixed Frequency VFREQ = 0V 320 350 380 kHz High Fixed Frequency VFREQ = INTVCC 485 535 585 kHz Rev 0 4 For more information www.analog.com Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS TIMING DIAGRAM FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION TYPICAL APPLICATION RELATED PARTS