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LTC1929C Datasheet(PDF) 3 Page - Linear Technology |
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LTC1929C Datasheet(HTML) 3 Page - Linear Technology |
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3 / 24 page  3 LTC1929 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 15V, VRUN/SS = 5V unless otherwise noted. ISDLHO Shutdown Latch Disable Current VEAIN = 0.5V 1.6 5 µA ISENSE Total Sense Pins Source Current Each Channel: VSENSE1–, 2– = VSENSE1+, 2+ = 0V – 60 µA DFMAX Maximum Duty Factor In Dropout 98 99.5 % Top Gate Transition Time: TG1, 2 tr Rise Time CLOAD = 3300pF 30 90 ns TG1, 2 tf Fall Time CLOAD = 3300pF 40 90 ns Bottom Gate Transition Time: BG1, 2 tr Rise Time CLOAD = 3300pF 30 90 ns BG1, 2 tf Fall Time CLOAD = 3300pF 20 90 ns TG/BG t1D Top Gate Off to Bottom Gate On Delay Synchronous Switch-On Delay Time CLOAD = 3300pF Each Driver 90 ns BG/TG t2D Bottom Gate Off to Top Gate On Delay Top Switch-On Delay Time CLOAD = 3300pF Each Driver 90 ns Internal VCC Regulator VINTVCC Internal VCC Voltage 6V < VIN < 30V; VEXTVCC = 4V 4.8 5.0 5.2 V VLDO INT INTVCC Load Regulation ICC = 0 to 20mA; VEXTVCC = 4V 0.2 1.0 % VLDO EXT EXTVCC Voltage Drop ICC = 20mA; VEXTVCC = 5V 120 240 mV VEXTVCC EXTVCC Switchover Voltage ICC = 20mA, EXTVCC Ramping Positive q 4.5 4.7 V VLDOHYS EXTVCC Switchover Hysteresis ICC = 20mA, EXTVCC Ramping Negative 0.2 V Oscillator and Phase-Locked Loop fNOM Nominal Frequency VPLLFLTR = 1.2V 200 220 250 kHz fLOW Lowest Frequency VPLLFLTR = 0V 110 140 170 kHz fHIGH Highest Frequency VPLLFLTR ≥ 2.4V 270 310 350 kHz RPLLIN PLLIN Input Resistance 50 k Ω IPLLFLTR Phase Detector Output Current Sinking Capability fPLLIN < fOSC –15 µA Sourcing Capability fPLLIN > fOSC 15 µA RRELPHS Controller 2-Controller 1 Phase 180 Deg Differential Amplifier/Op Amp Gain Block (Note 5) ADA Gain Differential Amp Mode 0.995 1 1.005 V/V CMRRDA Common Mode Rejection Ratio Differential Amp Mode; 0V < VCM < 5V 46 55 dB RIN Input Resistance Differential Amp Mode; Measured at VOS+ Input 80 k Ω VOS Input Offset Voltage Op Amp Mode; VCM = 2.5V; VDIFFOUT = 5V; 6 mV IDIFFOUT = 1mA IB Input Bias Current Op Amp Mode 30 200 nA AOL Open Loop DC Gain Op Amp Mode; 0.7V ≤ VDIFFOUT < 10V 5000 V/mV VCM Common Mode Input Voltage Range Op Amp Mode 0 3 V CMRROA Common Mode Rejection Ratio Op Amp Mode; 0V < VCM < 3V 70 90 dB PSRROA Power Supply Rejection Ratio Op Amp Mode; 6V < VIN < 30V 70 90 dB ICL Maximum Output Current Op Amp Mode; VDIFFOUT = 0V 10 35 mA VO(MAX) Maximum Output Voltage Op Amp Mode; IDIFFOUT = 1mA 10 11 V GBW Gain-Bandwidth Product Op Amp Mode; IDIFFOUT = 1mA 2 MHz SR Slew Rate Op Amp Mode; RL = 2k 5 V/ µs |
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