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MAX1640D Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1640D Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 11 page Adjustable-Output, Switch-Mode Current Source with Synchronous Rectifier 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = +12V, VOUT = 6V, Circuit of Figure 2, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note 1: This ratio is generated by a 1:8 clock divider and is not an error source for current calculations. IN to GND ...............................................................-0.3V to +28V LDOH to IN ...............................................................+0.3V to -6V LDOL to GND ...........................................................-0.3V to +6V PDRV to GND .............................. (VLDOH - 0.3V) to (VIN + 0.3V) NDRV to GND .........................................-0.3V to (VLDOL + 0.3V) TOFF, REF, SET, TERM, CC to GND ......-0.3V to (VLDOL + 0.3V) D0, D1 to GND .........................................................-0.3V to +6V CS+, CS- to GND ...................................................-0.3V to +28V PGND to GND.....................................................................±0.3V Continuous Power Dissipation (TA = +70°C) QSOP (derate 8.30mW/°C above +70°C) ................... 667mW Operating Temperature Range MAX164_EEE ...................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) ............................ +300°C IREF = 0 to 50µA D0 = D1 = low D0 = D1 = low (off mode) D0 or D1 = high VOUT = 2V to 24V VIN = VOUT + 0.5V to 26V MAX1641 MAX1641 MAX1640 VIN = 5.5V to 26V, ILOAD = 0 to 20mA VIN = 5.5V to 26V, ILOAD = 0 to 20mA MAX1640 CONDITIONS µA 1 VSET Input Current mV 4 10 Reference Load Regulation V 1.96 2.00 2.04 VREF Reference Voltage V 4.05 4.20 4.35 VLDOL Undervoltage Lockout µA 1 Output Current in Off Mode 500 mA 2 4 Quiescent VIN Supply Current 0.1 %/V 0.1 0.4 Output Current Compliance %/V 0.03 Current-Sense Line Regulation 34 37.5 41 mV 36 42 48 147 150 153 mV 142 150 158 Full-Scale Current-Sense Threshold V VIN - VIN - VIN - 5.5 5.0 4.5 VLDOH Linear-Regulator Output Voltage, VIN Referenced V 4.5 5.0 5.5 VLDOL Linear-Regulator Output Voltage, Ground Referenced UNITS MIN TYP MAX SYMBOL PARAMETER V 5.5 26 VIN Input Voltage Range FET Drive Output Resistance PFET and NFET drive 12 Ω Off-Time Range 1 10 µs Off-Time Accuracy RTOFF = 62kΩ 1.7 2.2 2.7 µs Pulse-Trickle Mode Duty-Cycle Period D0 = low, D1 = high, RTOFF = 100kΩ 27 33 40 ms Pulse-Trickle Mode Duty Cycle (Note 1) D0 = low, D1 = high, RTOFF = 100kΩ 12.5 % Quarter-Scale Current-Sense Threshold MAX1640 MAX1641 µA |
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