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TC1121 Datasheet(PDF) 3 Page - Microchip Technology |
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TC1121 Datasheet(HTML) 3 Page - Microchip Technology |
3 / 14 page © 2006 Microchip Technology Inc. DS21358C-page 3 TC1121 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Supply Voltage (VDD) ............................................... 6V OSC, FC, SHDN Input Voltage ..... -0.3V to (V+ + 0.3V) Output Short Circuit Duration ........................... 10 Sec. Package Power Dissipation (TA ≤ 70°C) 8-Pin PDIP .............................................. 730 mW 8-Pin SOIC .............................................. 470 mW 8-Pin MSOP ............................................ 333 mW Operating Temperature Range C Suffix............................................ 0°C to +70°C E Suffix......................................... -40°C to +85°C Storage Temperature Range .............. -65°C to +150°C *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. TC1121 ELECTRICAL SPECIFICATIONS Electrical Characteristics: TA = 0°C to 70°C (C suffix), -40°C to +85°C (E suffix), V += 5V ±10% C OSC = Open, C1, C2 = 10 μF, FC = V+, SHDN = VIH, typical values are at TA = 25°C unless otherwise noted. Symbol Parameter Min Typ Max Units Test Conditions IDD Active Supply Current — — 50 0.6 100 1 μA mA RL = Open, FC = Open or GND RL = Open, FC = V + ISHUTDOWN Shutdown Supply Current — 0.2 1.0 μASHDN = 0V V+ Supply Voltage 2.4 — 5.5 V VIH SHDN Input Logic High VDD x 0.8 — — V VIL SHDN Input Logic Low — — 0.4 V IIN Input Leakage Current -1 -4 — — 1 4 μASHDN, OSC FC pin ROUT Output Source Resistance — 12 20 Ω IOUT = 60 mA IOUT Output Current 60 100 VOUT = more negative than -3.75V FOSC Oscillator Frequency 5 100 10 200 — — kHz Pin 7 Open, Pin 1 Open or GND SHDN = VIH, Pin 1 = V + PEFF Power Efficiency — 93 94 — — 97 97 92 — — — % FC = GND for all RL = 2k between V + and V OUT RL = 1kΩ between VOUT and GND IL = 60 mA to GND VEFF Voltage Conversion Efficiency 99 99.9 — % RL = Open Note 1: Connecting any input terminal to voltages greater than V+ or less than GND may cause destructive latch-up. It is recommended that no inputs from sources operating from external supplies be applied prior to “power up” of the TC1121. |
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