MAX1795EUA Maxim Integrated Products, MAX1795EUA Datasheet
MAX1795EUA
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MAX1795EUA Summary of contents
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... Quiescent Supply Current o Low-Noise Antiringing Feature o LBI/LBO Comparator Enabled in Shutdown o 2µA Shutdown Current , where V o 8-Pin µMAX Package OUT OUT PART MAX1795 EUA MAX1796 EUA MAX1797 EUA True-Shutdown is a trademark of Maxim Integrated Products. IN 0.7V TO 5.5V 8 BATT 7 OUT GND ...
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Low Supply Current, Step-Up DC-DC Converters with True-Shutdown ABSOLUTE MAXIMUM RATINGS OUT, LX, SHDN, LBI, LBO, BATT to GND................-0.3V to +6V FB .............................................................-0. ..............................................................................±1.5A LX OUT Output Short-Circuit Duration ...................................................5s Continuous Power Dissipation 8-Pin µMAX ...
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Low Supply Current, Step-Up DC-DC Converters ELECTRICAL CHARACTERISTICS (continued +2V, OUT = +3.3V), SHDN = LBI = GND, T BATT OUT T = +25°C.) A PARAMETER SYMBOL Operating Current into BATT Shutdown Current into BATT ...
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Low Supply Current, Step-Up DC-DC Converters with True-Shutdown ELECTRICAL CHARACTERISTICS (continued +2V, OUT = +3.3V), SHDN = LBI = GND, T BATT OUT PARAMETER SYMBOL Internal NFET, PFET On- R DS(ON) Resistance I LIM LX ...
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Low Supply Current, Step-Up DC-DC Converters (L = 22µ 47µ 47µ OUT MAX1795 EFFICIENCY vs. LOAD CURRENT (+5V) 100 V = +3.6V BATT +1.2V 70 BATT V = +2.4V BATT ...
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Low Supply Current, Step-Up DC-DC Converters with True-Shutdown (L = 22µ 47µ 47µ OUT A LOW-BATTERY INPUT THRESHOLD vs. INPUT BATT VOLTAGE 0.950 0.925 0.900 INCREASING V LBI 0.875 0.850 DECREASING V LBI 0.825 ...
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Low Supply Current, Step-Up DC-DC Converters (L = 22µ 47µ 47µ OUT LIGHT-LOAD SWITCHING WAVEFORMS MAX1795/96/97 toc17 20µs/div V = +3.6V BATT V = +5.0V OUT I = 40mA LOAD LOAD-TRANSIENT RESPONSE MAX1795/96/97 toc19 ...
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... MAX1797s’ low operating current and high efficiency over a wide load range. The architecture combines the high output power and efficiency of a pulse-width-mod- ulation (PWM) device with the ultra-low quiescent cur- Dual Mode is a trademark of Maxim Integrated Products. 8 _______________________________________________________________________________________ Pin Description ...
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Low Supply Current, Step-Up DC-DC Converters BATT R1 1M SHDN LBO LBI + 0.85V TIMER BLOCK TOFF TON MAX START MAX OUT SELECT _ R3 REFERENCE Figure 2. Functional Diagram Synchronous Rectification The ...
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Low Supply Current, Step-Up DC-DC Converters with True-Shutdown V IN BATT R1 200Ω MAX1795 MAX1796 DAMPING MAX1797 SWITCH LX OUT Figure 3. Simplified Diagram of Inductor Damping Switch 2µs/div Figure 4. LX Ringing for Conventional Step-Up Converter (without Damping Switch) ...
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Low Supply Current, Step-Up DC-DC Converters V is the input voltage where the low-battery detec- TRIP tor output goes high impedance. For single-cell applications, LBI may be connected to the battery. When V <1.0V>, the LBI threshold BATT increases to ...
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Low Supply Current, Step-Up DC-DC Converters with True-Shutdown Table 1. Suggested Components for Typical Applications COMPONENT VALUE (MAX1797, 1A CURRENT COMPONENT LIMIT) Sumida CDRH6D28-220, 22µH Inductor Coilcraft DS3316P-223, 22µH Sanyo POSCAP 6TPA47M, Input Capacitor 47µF AVX TPSD476M016R0150, 47µF Output Capacitor ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________13 © 2000 Maxim Integrated Products ...