Datasheet LTC3901 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters |
| Seiten / Seite | 16 / 2 — ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL … |
| Dateiformat / Größe | PDF / 239 Kb |
| Dokumentensprache | Englisch |
ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL CHARACTERISTICS The
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LTC3901
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
TOP VIEW ORDER PART Supply Voltage PV 1 CC 16 VCC NUMBER VCC, PVCC .. 12V ME 2 15 MF Input Voltage ME 3 14 MF LTC3901EGN CSE–, CSF–, TIMER ... –0.3V to (VCC + 0.3V) PGND 4 13 PGND SYNC .. –12V to 12V CSE– 5 12 CSF– Input Current CSE+ 6 11 CSF+ GN PART CSE+, CSF+ ... 15mA TIMER 7 10 GND MARKING Operating Temperature Range (Note 2) ...–40°C to 85°C GND 8 9 SYNC Storage Temperature Range ..–65°C to 150°C 3901 GN PACKAGE Lead Temperature (Soldering, 10 sec).. 300°C 16-LEAD NARROW PLASTIC SSOP TJMAX = 125°C, θJA = 130°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range. VCC = 5V, TA = 25
°
C unless otherwise specified. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage Range ● 4.5 5 11 V VUVLO VCC Undervoltage Lockout Threshold Rising Edge ● 4.1 4.5 V VCC Undervoltage Lockout Hysteresis Rising Edge to Falling Edge 0.5 V IVCC VCC Supply Current VSYNC = 0V ● 0.5 1 mA fSYNC = 100kHz, CME = CMF = 4700pF (Note 4) ● 7 15 mA
Timer
VTMR Timer Threshold Voltage ● –10% VCC/5 10% V ITMR Timer Input Current VTMR = 0V ● –6 –10 µA tTMRDIS Timer Discharge Time CTMR = 1000pF, RTMR = 4.7k ● 40 120 ns VTMRMAX Timer Pin Clamp Voltage CTMR = 1000pF, RTMR = 4.7k 2.5 V
Current Sense (Note 5)
ICS+ CS+ Input Current VCS+ = 0V ● ±1 µA ICS– CS– Input Current VCS– = 0V ● ±1 µA VCSMAX CS+ Pin Clamp Voltage IIN = 5mA, Driver Off 11 V VCS Current Sense Threshold Voltage VCS– = 0V 7.5 10.5 13.5 mV (Note 6) ● 3 18 mV
SYNC Input
ISYNC SYNC Input Current VSYNC = ±10V ● ±1 ±10 µA VSYNCP SYNC Input Positive Threshold ● 1.0 1.4 1.8 V SYNC Positive Input Hysteresis (Note 7) 0.2 V VSYNCN SYNC Input Negative Threshold ● –1.8 –1.4 –1.0 V SYNC Negative Input Hysteresis (Note 7) 0.2 V
Driver Output
RONH Driver Pull-Up Resistance IOUT = –100mA 0.9 1.2 Ω ● 1.6 RONL Driver Pull-Down Resistance IOUT = 100mA 0.8 1.2 Ω ● 1.6 IPK Driver Peak Output Current (Note 7) 2 A 3901f 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
TOP VIEW ORDER PART Supply Voltage PV 1 CC 16 VCC NUMBER VCC, PVCC .. 12V ME 2 15 MF Input Voltage ME 3 14 MF LTC3901EGN CSE–, CSF–, TIMER ... –0.3V to (VCC + 0.3V) PGND 4 13 PGND SYNC .. –12V to 12V CSE– 5 12 CSF– Input Current CSE+ 6 11 CSF+ GN PART CSE+, CSF+ ... 15mA TIMER 7 10 GND MARKING Operating Temperature Range (Note 2) ...–40°C to 85°C GND 8 9 SYNC Storage Temperature Range ..–65°C to 150°C 3901 GN PACKAGE Lead Temperature (Soldering, 10 sec).. 300°C 16-LEAD NARROW PLASTIC SSOP TJMAX = 125°C, θJA = 130°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range. VCC = 5V, TA = 25
°
C unless otherwise specified. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage Range ● 4.5 5 11 V VUVLO VCC Undervoltage Lockout Threshold Rising Edge ● 4.1 4.5 V VCC Undervoltage Lockout Hysteresis Rising Edge to Falling Edge 0.5 V IVCC VCC Supply Current VSYNC = 0V ● 0.5 1 mA fSYNC = 100kHz, CME = CMF = 4700pF (Note 4) ● 7 15 mA
Timer
VTMR Timer Threshold Voltage ● –10% VCC/5 10% V ITMR Timer Input Current VTMR = 0V ● –6 –10 µA tTMRDIS Timer Discharge Time CTMR = 1000pF, RTMR = 4.7k ● 40 120 ns VTMRMAX Timer Pin Clamp Voltage CTMR = 1000pF, RTMR = 4.7k 2.5 V
Current Sense (Note 5)
ICS+ CS+ Input Current VCS+ = 0V ● ±1 µA ICS– CS– Input Current VCS– = 0V ● ±1 µA VCSMAX CS+ Pin Clamp Voltage IIN = 5mA, Driver Off 11 V VCS Current Sense Threshold Voltage VCS– = 0V 7.5 10.5 13.5 mV (Note 6) ● 3 18 mV
SYNC Input
ISYNC SYNC Input Current VSYNC = ±10V ● ±1 ±10 µA VSYNCP SYNC Input Positive Threshold ● 1.0 1.4 1.8 V SYNC Positive Input Hysteresis (Note 7) 0.2 V VSYNCN SYNC Input Negative Threshold ● –1.8 –1.4 –1.0 V SYNC Negative Input Hysteresis (Note 7) 0.2 V
Driver Output
RONH Driver Pull-Up Resistance IOUT = –100mA 0.9 1.2 Ω ● 1.6 RONL Driver Pull-Down Resistance IOUT = 100mA 0.8 1.2 Ω ● 1.6 IPK Driver Peak Output Current (Note 7) 2 A 3901f 2