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TC1219ECH Datasheet(PDF) 2 Page - Microchip Technology |
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TC1219ECH Datasheet(HTML) 2 Page - Microchip Technology |
2 / 16 page TC1219/TC1220 DS21366B-page 2 2002 Microchip Technology Inc. 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Input Voltage (VIN to GND)....................... +6.0V, -0.3V Output Voltage (OUT to GND).................. -6.0V, +0.3V Current at OUT Pin..............................................50mA Short-Circuit Duration – OUT to GND ............Indefinite Power Dissipation (TA ≤ 70°C) 6-Pin SOT-23A .........................................240mW Operating Temperature Range............. -40°C to +85°C Storage Temperature (Unbiased) .......-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. TC1219/TC1220 ELECTRICAL SPECIFICATIONS Electrical Characteristics: TA = -40°C to +85°C, VIN = +5V, C1 = C2 = 10µF, (TC1219), C1 = C2 = 3.3µF (TC1220), TA = 25°C unless otherwise noted. Symbol Parameter Min Typ Max Units Device Test Conditions IDD Supply Current — — 60 115 115 325 µA TC1219 TC1220 ISHDN Shutdown Supply Current — 0.1 1.0 µA SHDN = GND, VIN = 5V (Note 2) VMIN Minimum Supply Voltage 2.5 —— VRLOAD = 1kΩ VMAX Maximum Supply Voltage —— 5.5 V RLOAD = 1kΩ FOSC Oscillator Frequency 6 19 12 35 20 56.3 kHz TC1219 TC1220 VIH SHDN Input Logic High — 1.5 1.8 1.5 — — — — — — — — V TC1219 TC1220 RLOAD = ∞ VIN = VMIN to 3V VIN = >3V to VMAX VIN = VMIN to VMAX VIL SHDN Input Logic Low —— 0.5 V VIN = VMIN to VMAX PEFF Power Efficiency — — 96 95 — — %RLOAD = 1kΩ VEFF Voltage Conversion Efficiency 95 99.9 — %RLOAD = ∞ ROUT Output Resistance — 25 65 Ω TC1219/TC1220 ILOAD = 0.5mA to 25mA (Note 1) Note 1: Capacitor contribution is approximately 20% of the output impedance [ESR = 1/ pump frequency x capacitance]. 2: VIN is guaranteed to be disconnected from OUT when the converter is in shutdown.. |
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