Motore di ricerca datesheet componenti elettronici |
|
MC33064DM-5 Scheda tecnica(PDF) 4 Page - Motorola, Inc |
|
MC33064DM-5 Scheda tecnica(HTML) 4 Page - Motorola, Inc |
4 / 8 page Figure 7. Clamp Diode Forward Current versus Voltage Figure 8. Low Voltage Microprocessor Reset Figure 9. Low Voltage Microprocessor Reset with Additional Hysteresis 80 60 40 20 0 0 0.4 0.8 1.2 1.6 VF , FORWARD VOLTAGE (V) Vin = 0 V TA = 25°C A time delayed reset can be accomplished with the addition of CDLY. For systems with extremely fast power supply rise times (<500 ns) it is recommended that the RCDLY time constant be greater than 5.0 µs. Vth(MPU) is the microprocessor reset input threshold. tDLY = RCDLY In 1 1 – Vth(MPU) Power Supply + – 2 (2) R 1 (1) Reset CDLY Microprocessor Circuit 1.2 Vref 3 (4) – + Power Supply + – 2 (2) RL 1 (1) Reset Microprocessor Circuit 1.2Vref 3 (4) – + VH ≈ 4.6 RH + 0.02 ∆Vth(lower) ≈ 340 RH x 10–6 Where: RH ≤ 150 Ω Where: RL ≥ 1.5 Ω, ≤ 10 kΩ Comparator hysteresis can be increased with the addition of resistor RH. The hysteresis equation has been simplified and does not account for the change of input current Iin as VCC crosses the comparator threshold (Figure 4). An increase of the lower threshold ∆Vth(lower) will be observed due to Iin which is typically 340 µA at 4.59 V. The equations are accurate to ±10% with RH less than 150 Ω and RL between 1.5 kΩ and 10 kΩ. Iin RH Vin RL MC34064 MC33064 4 MOTOROLA ANALOG IC DEVICE DATA Test Data VH (mV) ∆Vth (mV) RH ( Ω) RL (k Ω) 20 0 0 0 51 3.4 10 1.5 40 6.8 20 4.7 81 6.8 20 1.5 71 10 30 2.7 112 10 30 1.5 100 16 47 2.7 164 16 47 1.5 190 34 100 2.7 327 34 100 1.5 276 51 150 2.7 480 51 150 1.5 |
Codice articolo simile - MC33064DM-5 |
|
Descrizione simile - MC33064DM-5 |
|
|
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 |