TC1044SCOA

The TC1044SCOA belongs to TC1044S which is a pin-compatible upgrade to the Industry standard TC7660 charge pump voltage converter. Operation below 10kHz (for lower supply current applications) is possible by connecting an external capacitor from OSC to ground (with pin 1 open). The TC1044S is available in both 8-pin DIP and 8-pin small outline (SOIC) packages in commercial and extended temperature ranges. It converts a +1.5V to +12V input to a corresponding -1.5V to -12V output using only two low cost capacitors, eliminat- ing inductors and their associated cost, size and 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 10kHz. Frequency is increased to 45kHz when pin 1 is connected to V+.

The features of TC1044SCOA can be summarized as (1)converts +5V logic supply to ±5V system; (2)wide input voltage range 1.5V to 12V; (3)efficient voltage conversion, 99.9%; (4)excellent power efficiency, 98%; (5)low power consumptio, 80A @VIN=5V; (6)low cost and easy to use -only two external capacitors required; (7)RS-232 negative power supply; (8)available in 8-pin small outline (SOIC) and 8-Pin plastic DIP packages; (9)improved ESD protection, up to 10kV; (10)no external diode required for high voltage operation; (11)frequency boost raises FOSC to 45kHz.

The absolute maximum ratings* of TC1044SCOA are (1)supply voltage: +13V; (2)LV, boost and OSC inputs voltage (Note 1): -0.3V to (V++ 0.3V) for V+ < 5.5V; (3)(V+ -5.5V) to (V++ 0.3V) for V+ > 5.5V; (4)current into LV (Note 1): 20A for V+>3.5V; (5)output short duration (VSUPPLY 5.5V): continuous; (6)lead temperature (soldering, 10 sec): +300°C; (7)package power dissipation (TA 70°C) (Note 2), 8-Pin CerDIP: 800mW, 8-Pin Plastic DIP: 730mW, 8-Pin SOIC: 470mW; (8)operating temperature range: C Suffix: 0°C to +70°C, Suffix: -25°C to +85°C, E Suffix: -40°C to +85°C, M Suffix: -55°C to +125°C; (9)storage temperature range: -65°C to +150°C(*Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above 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 above those indicated in the operation sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.).