Zakładka z wyszukiwarką danych komponentów |
|
TC96C555EPA Arkusz danych(PDF) 7 Page - TelCom Semiconductor, Inc |
|
TC96C555EPA Arkusz danych(HTML) 7 Page - TelCom Semiconductor, Inc |
7 / 9 page 4-165 TELCOM SEMICONDUCTOR, INC. 7 6 5 4 3 1 2 8 TC96C555 3A OUTPUT PROGRAMMABLE POWER OSCILLATOR TYPICAL CHARACTERISTICS (Cont.) APPLICATIONS The oscillator timing can easily be controlled by two external resistors, RCHG and RDIS, and capacitor C. RCHG and RDIS set the two constant current sources for charging and discharging C. The source current is always flowing when in operation. When the capacitor has charged to a 2V threshold, the current sink circuit is enabled to discharge the ROUT vs. Temperature Output HIGH Temperature (°C) VIN = 0V 10 –55 –35 5 25 45 65 85 105 125 –15 8 6 4 2 0 5V 10V 18V ROUT vs. Temperature Output LOW Temperature (°C) VIN = 3V –55 –35 5 25 45 65 85 105 125 –15 0 5V 10V 18V 7 1 2 3 4 5 6 Figure 3. VIN and Output Waveform 4 3 2 VDD VREF 1V 2V 3V Q1 Q2 1 ISOURCE 4V Q3 ISINK 7 6 OUTPUT 10µF 5 GND VREF 8 RCHG VR1 VR2 VIN RDIS 1V 2V C Figure 2. Fixed Frequency Power Oscillator 4 3 6 7 OUTPUT GND 2 1 C1 = 1800pF 5 VREF INPUT 8 1 µF WIMA MKS-2 0.1 µF CERAMIC TEST CIRCUIT VDD = 18V TC96C555 +5V INPUT 0V 18V 0V OUTPUT 10% tD1 tD2 90% 90% 10% 10% 90% tR 100KHz Square Wave tRISE = tFALL ≤ 10nsec tF capacitor to the 1V threshold. When 1V is reached, the current sink turns OFF to start another cycle. Resistor RCHG is connected from VREF at Pin 3 to VR1 Pin 4 to program the charging current. Current is set with resistor RDIS connected from VREF Pin 3 to VR2 Pin 1. Both currents can range from 5 µA to 150µA. VIN 0V 2V 1V OUTPUT VDD TCHG Figure 1. Output Switching Time |
Podobny numer części - TC96C555EPA |
|
Podobny opis - TC96C555EPA |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów 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 |