Pin 2. RCT (Oscillator). Two resistors (RA and RB) and one capacitor (CT), connected as shown in fig. 22, allow to set separately the operating fre- quency of the oscillator in normal operation (fosc) and in standby mode (fSB). CT iS charged fro_m Vref through RA and RB in nor- mal operation(STANDBY = HIGH), through RA only in standby (STABY = LOW). See pin 16 description to see how the STANDBY signal is gen- erated. When the voltage on CT reaches 3V, the capaci- tor is quickly internally discharged. As the voltage has dropped t0 1V it starts being charged again.
PC10646U PC10646U PC10646U on stock| vcc | C1 | C2 | C3 | C4 | Cbypass |
| 3O t0 3.6 | 0.22 | 0.22 | 0.22 | 0.22 | 0.1 |
| 3.1 t0 3.6 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| 4.5 t0 5.5 | 0.047 | 0.33 | 0.33 | 0.33 | 0.1 |
| 3O t0 5.5 | 0.22 | 0.1 | 0.1 | 0.1 | 0.1 |
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| Parameter | Symbol | Conditions | MIN | TYP. | MAX | Unit |
| Input | Forward voltage | VF | | | 1 2 | 1 4 | v |
| Peak forward voltage | VFM | IFM=0.5A | | | 3 5 | V |
| Reverse Leakage Current | IR | VR=4V | | | 10 | LtA |
| Output | Peak Blocking Current | IDRM | VDRM=600V | | | 100 | nA |
| ON-State Voltage | VTM | ITM=lOOmA | | 1 6 | 2 8 | V |
| Transfer | Holding Current | IH | | | 1 0 | | rrA |
| charac- teristics | Critical rate of rise of OFF-state voltage | dV/dt | VDRM= (1/ | 600 | | | Vus |
| | Riso | DC500V | 5x1 0' | 1011 | | |
| Minimum trigger current | IFT | Main Terminal Voltage=3V | | | 5 | mA |
| | Ton | Vo=6V, RL=IOO ohm, IF=20mA | | | 100 | LLS |
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