TC7660SCOA Datasheet

Charge Pumps


The TC7660SCOA device is a pin-compatible replacement for the industry standard 7660 charge pump voltage converter. It converts a +1.5V to +12V input to a corresponding -1.5V to -12V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and electromagnetic interference (EMI). Added features include an extended supply range to 12V, and a frequency boost pin for higher operating frequency, allowing the use of smaller external capacitors. The on-board oscillator operates at a nominal frequency of 10 kHz. Frequency is increased to 45 kHz when pin 1 is connected to V+ Operation below 10 kHz (for lower supply current applications) is possible byconnecting an external capacitor from OSC to ground (with pin 1 open). The TC7660SCOA is available in 8-Pin PDIP and 8-Pin Small Outline (SOIC) packages in commercial and extended temperature ranges. TC7660SCOA Features • Oscillator boost from 10 kHz to 45 kHz• Converts +5V Logic Supply to ±5V System• Wide Input Voltage Range: +1.5V to +12V• Efficient Voltage Conversion (99.9%, typical)• Excellent Power Efficiency (98%, typical)• Low Power Consumption: 80 µA (typical) @ VIN = 5V• Low Cost and Easy to Use- Only Two External Capacitors Required• Available in 8-Pin Small Outline (SOIC) and 8-Pin PDIP Packages• Improved ESD Protection (10 kV HBM)• No External Diode Required for High-Voltage Operation TC7660SCOA Applications • RS-232 Negative Power Supply• Simple Conversion of +5V to ±5V Supplies• Voltage Multiplication VOUT = ± n V+• Negative Supplies for Data Acquisition Systems and Instrumentation


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Manufacturer information


Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.

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