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TC7662AMJA Folha de dados(PDF) 1 Page - Microchip Technology |
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TC7662AMJA Folha de dados(HTML) 1 Page - Microchip Technology |
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1 / 7 page  TC7662A EVALUATION KIT AVAILABLE TC7662A-5 9/11/96 © 2001 Microchip Technology Inc. DS21468 + – COMPARATOR WITH HYSTERESIS C F/F Q Q VREF LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT VDD P SW1 CAP CP EXT N SW4 N SW2 N SW3 CAP CR EXT RL V I COSC + GND – OUT 8 2 3 OUT 5 4 7 + + TC7662A GENERAL DESCRIPTION The TC7662A is a pin-compatible upgrade to the In- dustry standard TC7660 charge pump voltage converter. It converts a +3V to +18V input to a corresponding –3V to –18V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and EMI. In addi- tion to a wider power supply input range (3V to 18V versus 1.5V to 10V for the TC7660), the TC7662A can source output currents as high as 40mA. The on-board oscillator operates at a nominal frequency of 12kHz. Operation be- low 10kHz (for lower supply current applications) is also possible by connecting an external capacitor from OSC to ground. The TC7662A directly is recommended for designs requiring greater output current and/or lower input/output voltage drop. It is available in 8-pin PDIP, and CerDIP packages in commercial and extended temperature ranges. FEATURES s Wide Operating Range ............................. 3V to 18V s Increased Output Current .............................. 40mA s Pin Compatible with ICL7662/SI7661/TC7660/ LTC1044 s No External Diodes Required s Low Output Impedance @ IL = 20mA ....... 40 Ω Typ. s No Low-Voltage Terminal Required s CMOS Construction FUNCTIONAL BLOCK DIAGRAM CHARGE PUMP DC-TO-DC CONVERTER ORDERING INFORMATION Temperature Part No. Package Range TC7662ACPA 8-Pin Plastic DIP 0 °C to +70°C TC7662AEPA 8-Pin Plastic DIP – 40 °C to +85°C TC7662AIJA 8-Pin CerDIP – 25 °C to +85°C TC7662AMJA 8-Pin CerDIP – 55 °C to +125°C TC7662A 1 2 3 4 VDD 5 6 7 8 OSC VOUT NC C+ GND C– NC NC = NO INTERNAL CONNECTION PIN CONFIGURATION PDIP/CerDIP |
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Descrição semelhante - TC7662AMJA |
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