Motore di ricerca datesheet componenti elettronici |
|
TC1237 Scheda tecnica(PDF) 1 Page - Microchip Technology |
|
TC1237 Scheda tecnica(HTML) 1 Page - Microchip Technology |
1 / 10 page TC1235 TC1236 TC1237 TC1235/6/7-1 3/24/00 © 2001 Microchip Technology Inc. DS21371A Inverting Dual (–VIN, –2VIN) Charge Pump Voltage Converters with Shutdown FEATURES s 10-Pin MSOP Package s Operates from 1.8V to 5.5V s Up to 5mA Output Current at –VIN Pin s Up to 1mA Output Current at –2VIN Pin s Power-Saving Shutdown Mode s –VIN and –2VIN Outputs Available s Low Active Supply Current .......................................... 120 µA (MAX) for TC1235 .......................................... 360 µA (MAX) for TC1236 .......................................... 1.5mA (MAX) for TC1237 s Fully Compatible with 1.8V Logic Systems TYPICAL APPLICATIONS s LCD Panel Bias s Cellular Phones PA Bias s Pagers s PDAs, Portable Dataloggers s Battery Powered Devices GENERAL DESCRIPTION The TC1235/1236/1237 are CMOS dual inverting charge pump voltage converters with a low power shutdown mode in MSOP 10-Pin packages. Only four external capaci- tors are required for full circuit implementation. Switching frequencies are 12kHz for the TC1235, 35kHz for the TC1236 and 125kHz for the TC1237. When the shutdown pin is held at a logic low, the device goes into a very low power mode of operation, consuming less than 1 µA of supply current. These devices provide both a negative voltage inver- sion (available at the –VIN output), and a negative doubling voltage inversion (available at the –2 VIN output) with a low output impedance capable of providing output currents up to 5mA for the –VIN output and 1mA for the –2VIN output. The input voltage can range from +1.8V to +5.5V. ORDERING INFORMATION Part No. Package Osc Freq (KHz) Temp Range TC1235EUN 10-Pin MSOP 12 –40 °C to +85°C TC1236EUN 10-Pin MSOP 35 –40 °C to +85°C TC1237EUN 10-Pin MSOP 125 –40 °C to +85°C TYPICAL OPERATING CIRCUIT C1+ C2+ SHDN VIN –VIN C1– C2 C2– C1 TC1235 TC1236 TC1237 COUT1 ON OFF NC –2 VIN + + + COUT2 + OUTPUT 1 OUTPUT 2 INPUT GND Notes: 1) C1 and COUT1 must have a voltage rating greater than or equal to VIN 2) C2 and COUT2 must have a voltage rating greater than or equal to 2VIN GND 10-Pin MSOP TC1235 –2 VIN 1 2 3 4 5 10 9 8 7 6 TC1236 TC1237 C1– C2– C1+ C2+ NC –VIN SHDN VIN PIN CONFIGURATION |
Codice articolo simile - TC1237 |
|
Descrizione simile - TC1237 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |