TC1222ECHTR Microchip Technology, TC1222ECHTR Datasheet
TC1222ECHTR
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TC1222ECHTR Summary of contents
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... C – V OUT IN NOTE: 6-Pin SOT-23A is equivalent to the EIAJ SC-74 2002 Microchip Technology Inc. TC1221/TC1222 General Description The TC1221/TC1222 are CMOS “charge-pump” voltage converters in ultra-small 6-Pin SOT-23A packages. They invert and/or double an input voltage which can range from +1.8V to +5.5V. Conversion efficiency is typically 96% ...
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... TC1221 — 25 — TC1222 Test Conditions SHDN = GND (Note Ω R LOAD = 1k Ω R LOAD MIN MAX MIN MAX = 1k Ω R LOAD = ∞ R LOAD I = 0.5mA to 25mA (Note 1) LOAD = 1k Ω R LOAD 2002 Microchip Technology Inc. ...
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... TABLE 2-1: 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. TC1221/TC1222 Description DS21367B-page 3 ...
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... C2. During the IN second phase, S2 and S4 are closed, and S1 and S3 are opened. This action connects C1 across C2, restoring charge to C2. DS21367B-page 4 FIGURE 3-1: IDEAL SWITCHED CAPACITOR CHARGE PUMP TC1221/1222 OSC Phase 1 2002 Microchip Technology Inc – OUT IN ...
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... Figure 4-2). The value of R can be approximated at 0.5Ω for the SWITCH TC1221/TC1222. The remaining losses in the circuit are due to factor (4) above, and are shown in Equation 4-2. The output voltage ripple is given by Equation 4-3. 2002 Microchip Technology Inc. EQUATION 4-2: P LOSS (4) (C )(V RIPPLE 2 ...
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... RIPPLE 1 32 OUT 22 TC1221 16 2 TC1220 – 5 SHDN Device TC1221 TC1222 to avoid significant current flows. IN plus any voltage drops due to loading. VOLTAGE INVERTER TEST CIRCUIT OUT GND 1µF 1µF 1µF 0.22µF 0.22µF 0.22µF 2002 Microchip Technology Inc. ...
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... PARALLELING MULTIPLE DEVICES TO REDUCE OUTPUT RESISTANCE Shutdown Control 2002 Microchip Technology Inc. TC1221/TC1222 4.8 Paralleling Devices To reduce the value of R TC1222’s can be connected in parallel (Figure 4-5). ) but will droop The output resistance will be reduced by a factor of N where N is the number of TC1221/TC1222. Each ...
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... As with any switching power supply circuit, good layout practice is recommended. Mount components as close together as possible to minimize stray inductance and capacitance. Noise leakage into other circuitry can be minimized with the use of a large ground plane D1 1N4148 2 TC1221 TC1222 OUT OUT + (V FD1 (2V ) – – FD2 2002 Microchip Technology Inc. ...
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... RL = 1K, +25° 5.0V 1K, +25°C IN 250 200 150 V = 5.0V IN 100 CAPACITANCE (µF) 2002 Microchip Technology Inc. = 25°C unless otherwise noted. A 600 500 400 300 200 4.5 5.0 5.5 100 0 0 130 1µ ∞, +25°C 120 4.5 5.0 5.5 ...
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... TC1222 Output Voltage Droop vs. Capacitance 3.3V 1K, +25° 5.0V 1K, +25° 5. 3. CAPACITANCE (µF) TC1222 Oscillator Frequency vs. Supply Voltage 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) 2002 Microchip Technology Inc. ...
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... Component Taping Orientation for 6-Pin SOT-23A (EIAJ SC-74) Devices Device Marking PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package 6-Pin SOT-23A 2002 Microchip Technology Inc. TC1221/TC1222 User Direction of Feed Standard Reel Component Orientation For TR Suffix Device (Mark Right Side Up) Carrier Width (W) ...
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... DS21367B-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. TC1221/TC1222 DS21367B-page13 ...
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... TC1221/TC1222 NOTES: DS21367B-page14 2002 Microchip Technology Inc. ...
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... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...
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... 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 ...