Datasheet ADM3260 (Analog Devices) - 4

ADM3260 Data Sheet ELECTRICAL CHARACTERISTICS—3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
All typical specifications are at TA = 25°C, VIN = VISO = 3.3 V, VSEL resistor network RBOTTOM = 10 kΩ, RTOP = 16.9 kΩ. Minimum/maximum specifications apply over the entire recommended operation range which is 3.0 V ≤ VIN, VISO ≤ 3.6 V, and −40°C ≤ TA ≤ +105°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted.
Table 4. Parameter Symbol Min Typ Max Unit Test Conditions/Comments
DC-TO-DC CONVERTER SUPPLY Setpoint VISO 3.3 V IISO = 10 mA, RBOTTOM = 10 kΩ, RTOP = 16.9 kΩ Thermal Coefficient VISO (TC) −26 µV/°C IISO = 20 mA Line Regulation VISO (LINE) 20 mV/V IISO = 10 mA, VIN = 3.0 V to 3.6 V Load Regulation VISO (LOAD) 1.3 3 % IISO = 2 mA to 18 mA Output Ripple VISO (RIP) 50 mV p-p 20 MHz bandwidth, COUTPUT_BYPASS = 0.1 µF||10 µF, IISO = 18 mA Output Noise VISO (NOISE) 130 mV p-p COUTPUT_BYPASS = 0.1 µF||10 µF, IISO = 18 mA Switching Frequency fOSC 125 MHz Pulse-Width Modulation Frequency fPWM 600 kHz Output Current IISO (MAX) 20 mA 3.6 V > VISO > 3 V Efficiency at IISO (MAX) 27 % IISO = 18 mA IVIN, No VISO Load IVIN (Q) 3.3 10.5 mA IVIN, Full VISO Load IVIN (MAX) 77 mA Thermal Shutdown Shutdown Temperature TSHUTDOWN 154 °C Thermal Hysteresis THYST 10 °C
DC-TO-DC CONVERTER CHARACTERISTICS
All typical specifications are at TA = 25°C. Minimum/maximum specifications apply over the entire recommended operation range unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted.
Table 5. Parameter Symbol Min Typ Max Unit Test Conditions/Comments
UNDERVOLTAGE LOCKOUT VIN, VISO supply Positive Going Threshold VUV+ 2.7 V Negative Going Threshold VUV− 2.4 V PDIS PIN Input Threshold Logic High VIH 0.7 VIN V Logic Low VIL 0.3 VIN V Input Current IPDIS −10 +0.01 +10 µA 0 V ≤ VPDIS ≤ VIN Rev. D | Page 4 of 19 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/5 V SECONDARY ISOLATED SUPPLY ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY ELECTRICAL CHARACTERISTICS—3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY DC-TO-DC CONVERTER CHARACTERISTICS DIGITAL ISOLATOR DC SPECIFICATIONS DIGITAL ISOLATOR AC SPECIFICATIONS PACKAGE CHARACTERISTICS REGULATORY APPROVALS INSULATION AND SAFETY RELATED SPECIFICATIONS DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS RECOMMENDED OPERATING CONDITIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION VISO VOLTAGE TRUTH TABLE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CONDITION APPLICATIONS INFORMATION FUNCTIONAL DESCRIPTION DIGITAL ISOLATOR STARTUP TYPICAL APPLICATION DIAGRAM PCB LAYOUT THERMAL ANALYSIS EMI CONSIDERATIONS INSULATION LIFETIME APPLICATIONS EXAMPLE OUTLINE DIMENSIONS ORDERING GUIDE