TC1220 Microchip Technology, TC1220 Datasheet
TC1220
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TC1220 Summary of contents
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... They invert and/or double an input voltage which can range from +2.5V to +5.5V. Conversion efficiency is typically >95%. Switching frequency is 12kHz for the TC1219, 35kHz for the TC1220. When the shutdown pin is held at a logic low, the device goes into a very low power mode of operation, consuming less than 1µ ...
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... Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. = +5V µ F, (TC1219 3.3 µ F (TC1220 Min Typ Max ...
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... PIN FUNCTION TABLE Pin No. Symbol (6-Pin SOT-23A) 1 OUT Inverting charge pump output Positive power supply input. IN – Commutation capacitor negative terminal. 4 GND Ground. 5 SHDN Shutdown input (active low Commutation capacitor positive terminal. 2002 Microchip Technology Inc. TC1219/TC1220 Description DS21366B-page 3 ...
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... TC1219/TC1220 3.0 DETAILED DESCRIPTION The TC1219/TC1220 charge pump converters invert the voltage applied to the V pin. Conversion consists two-phase operation (Figure 3-1). During the first phase, switches S2 and S4 are opened and S1 and S3 are closed. During this time, C1 charges to the voltage on V and load current is supplied from C2. During the ...
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... APPLICATIONS INFORMATION 4.1 Output Voltage Considerations The TC1219/TC1220 perform voltage conversion but do not provide regulation. The output voltage will droop in a linear manner with respect to load current. The value of this equivalent output resistance is approxi- mately 25Ω nominal at +25°C and V IN approximately -5V at light loads, and droops according ...
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... TC1219/TC1220. DS21366B-page 6 4.5 Shutdown Input The TC1219/TC1220 is enabled when SHDN is high, and disabled when SHDN is low. This input cannot be allowed to float. (If SHDN is not required, see the TCM828/829 data sheet.) The SHDN input can be only driven to 0.5V above V flows ...
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... Cascading Devices Two or more TC1219/TC1220 can be cascaded to increase output voltage (Figure 4-4). If the output is lightly loaded, it will be close to (- least the first device multiplied by the I OUT of the second. It can be seen that the output resistance rises rapidly for multiple cascaded devices. ...
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... TC1219/TC1220 4.9 Voltage Doubler/Inverter Another common application of the TC1219/TC1220 is shown in Figure 4-6. This circuit performs two functions in combination. C1 and C2 form the standard inverter circuit described previously. C3 and C4 plus the two diodes form the voltage doubler circuit. C1 and C3 are the pump capacitors and C2 and C4 are the reservoir capacitors ...
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... CAPACITANCE (µF) TC1219 Pump Frequency vs. Temperature 5. 3. -40 - 5.5 TEMPERATURE ( ° C) TC1219/TC1220 TC1220 Output Current vs. Capacitance 4.75V -4.0V IN OUT 3.15V -2.5V IN OUT CAPACITANCE ( µF) TC1219 Output Current vs ...
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... TC1219/TC1220 TYPICAL CHARACTERISTICS (CONTINUED) Output Voltage vs. Output Current 0.5 -0.5 -1 3.3V IN -2.5 -3 5.0V IN -4.5 -5 OUTPUT CURRENT (mA) DS21366B-page 10 Efficiency vs. Output Current 110 100 CURRENT (mA) 2002 Microchip Technology Inc. ...
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... Marking PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) 6-Pin SOT-23A 2002 Microchip Technology Inc. TC1219/TC1220 User Direction of Feed Standard Reel Component Orientation For TR Suffix Device (Mark Right Side Up) Pitch (P) Part Per Full Reel 8 mm ...
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... TC1219/TC1220 6.3 Package Dimensions SOT-23A-6 .122 (3.10) .098 (2.50) .020 (0.50) .014 (0.35) .057 (1.45) .035 (0.90) .006 (0.15) .000 (0.00) DS21366B-page 12 .075 (1.90) REF. .069 (1.75) .059 (1.50) .037 (0.95) REF. .118 (3.00) .110 (2.80) 10° MAX. .024 (0.60) .004 (0.10) Dimensions: inches (mm) .008 (0.20) .004 (0.09) 2002 Microchip Technology Inc. ...
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... The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. 2002 Microchip Technology Inc. TC1219/TC1220 DS21366B-page13 ...
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... TC1219/TC1220 NOTES: DS21366B-page14 2002 Microchip Technology Inc. ...
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... Microchip. No licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. 2002 Microchip Technology Inc. TC1219/TC1220 Trademarks The Microchip name and logo, the Microchip logo, FilterLab microID, MPLAB, PIC, PICmicro, PICMASTER, ...
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... Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...