tc1240a Microchip Technology Inc., tc1240a Datasheet
tc1240a
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tc1240a Summary of contents
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... The TC1240/TC1240A is a doubling CMOS charge pump voltage converter in a small 6-Pin SOT-23A package. The TC1240 doubles an input voltage that can range from +2.5V to +4.0V, while the TC1240A doubles an input voltage that can range from +2.5V to +5.5V. Conversion efficiency is typically >99%. Internal oscillator frequency is 160 kHz for both devices. The ...
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... ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † Input Voltage (V to GND) IN TC1240 ............................................. +4.5V, -0.3V TC1240A ........................................... +5.8V, -0.3V Output Voltage (V to GND) OUT TC1240 ....................................... +9.0V, V TC1240A ................................... +11.6V, V Current at V Pin............................................50 mA OUT Short-Circuit Duration GND .............Indefinite OUT Thermal Resistance .......................................210°C/W Power Dissipation ( °C)........................600 +25 A Operating Temperature Range............. -40°C to +85°C Storage Temperature (Unbiased) ....... -65° ...
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... TC1240A ELECTRICAL SPECIFICATIONS Electrical Specifications: Unless otherwise noted, typical values apply at T values apply for T = -40° to +85°C, and V A Parameters Sym Supply Current I DD Shutdown Supply Current I SHDN Minimum Supply Voltage V MIN Maximum Supply Voltage V MAX Output Current I LOAD ...
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... TC1240/TC1240A 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e ...
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... Note: Unless otherwise indicated, typical values apply at T 100 -50 - TEMPERATURE (°C) FIGURE 2-7: Switching Frequency vs. Temperature. 2003 Microchip Technology Inc. TC1240/TC1240A = +25° 4. 2.8V IN 100 125 DS21516C-page 5 ...
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... TC1240/TC1240A 3.0 PIN DESCRIPTION The description of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin No. Symbol GND SHDN 5 V OUT 6 C+ DS21516C-page 6 Description Power supply input Ground Commutation capacitor negative terminal Shutdown input (active high) Doubled output voltage Commutation capacitor positive terminal ...
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... The value of this equivalent output resistance is approx- 2 and S imately 12Ω nominal at +25°C and TC1240A and 17Ω nominal at +25°C and V for the TC1240. V loads for the TC1240A and +5.6V for the TC1240, and droops according to the equation below: EQUATION IN V DROOP . 2 V OUT 5 ...
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... R . Table 5 values assume 5mA output load . C2 OUTPUT RESISTANCE VS. C (ESR = 0.1Ω) 1 TC1240 TC1240A R (Ω) R (Ω) OUT OUT 47 35 28.5 20.5 19 15.5 10.5 13.6 9.3 12.5 8.3 12.2 8.1 OUTPUT VOLTAGE RIPPLE VS. C (ESR = 0.1Ω OUT TC1240/TC1240A V (mV) RIPPLE 142 6.7 2.5 1.6 2003 Microchip Technology Inc. ...
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... C ) connected from the input to GND. 1 5.5 Shutdown Input The TC1240 and TC1240A are disabled when SHDN is high, and enabled when SHDN is low. This input cannot be allowed to float OUT ...
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... Paralleling Multiple Devices To Reduce Output Resistance. DS21516C-page 10 5.8 Paralleling Devices To reduce the value of R TC1240As can be connected in parallel (Figure 5-5). ), but will The output resistance will be reduced by a factor where N is the number of TC1240/TC1240As. Each device will require its own pump capacitor (C1x), but all devices may share one reservoir capacitor (C2) ...
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... Package Marking Information 6-Pin SOT-23A & = part number code + temperature range 1 2 (two-digit code) Device Code TC1240 TC1240A ex: 1240AECH = E N represents year and 2-month code 3 represents production lot ID code 4 2003 Microchip Technology Inc. TC1240/TC1240A DN EN DS21516C-page 11 ...
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... TC1240/TC1240A 6-Lead Plastic Small Outline Transistor (CH) (SOT-23 β Dimension Limits Number of Pins Pitch Outside lead pitch (basic) Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...
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... Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. 2003 Microchip Technology Inc. TC1240/TC1240A . Examples: a) TC1240ECHTR: Tape and Reel, 6L SOT-23 (EIAJ) b) TC1240AECHTR: Tape and Reel, 6L SOT-23 (EIAJ) DS21516C-page 13 ...
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... TC1240/TC1240A NOTES: DS21516C-page 14 2003 Microchip Technology Inc. ...
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... Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. 2003 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, K MPLAB, PIC, PICmicro, PICSTART, PRO MATE and PowerSmart are registered trademarks of Microchip Technology Incorporated in the U ...
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... Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Italy Microchip Technology SRL Via Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 United Kingdom Microchip Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 03/25/03 2003 Microchip Technology Inc. ...