SI91842DT-28-T1 SI91842DT-28-T1 SI91842DT28T1 Datasheet Notes: '1. Supply current when output is high is typically l.OmA less at Vcc = 5V *2. Tested at Vcc = 5V and Vcc = 15V *3. This will determine the maximum value of RA + RB for 15V operation. The maximum total R = 20MI , and for 5V operation the maximum total R = 6.6Ml . *4. Matching characteristics refer to the difference between performance characteristics of each timer section in the monostable mode. SI91842DT-28-T1 SI91842DT-28-T1 SI91842DT28T1 Price Many engineers have heard that solid tantalum capacitors are prone to failure if they undergo high surge currents. This is historically true and AVX type TPS capacitors are specially tested for surge capability, but surge ruggedness is not a critical issue with the output capacitor. Solid tantalum capacitors fail during very high turn-on surges, which do not occur at the output of regulators. High discharge surges, such as when the regulator output is dead-shorted, do not harm the capacitors. SI91842DT-28-T1 SI91842DT-28-T1 SI91842DT28T1 on stock| VTH | Differential Receiver Input Threshold Voltage | -2V " (VA + VB)/2 " 2V (Figure 3) | q | - 0.2 0.2 | V | | O\/TH | Receiver Input Hysteresis | -2V " (VA + VB)/2 " 2V (Figure 3) | q | 1 5 40 | mV | | IIN | Receiver Input Current (A, B) | -10V " VA,B " 10V | q | ±0.66 | mA | | RIN | Receiver Input Impedance | -10V " VA,B " 10V | q | 1 5 30 | k | | trtf | Rise or Fall Time | (Figures 3, 7) | | 15 | ns | | tPLH | Input to Output | (Figures 3, 7) (LTC1543C) (Figures 3, 7) (LTC15431) | q q | 50 80 50 90 | ns ns | | tPHL | Input to Output | (Figures 3, 7) (LTC1543C) (Figures 3, 7) (LTC15431) | q q | 50 80 50 90 | ns ns | | | Input to Output Difference, ltPLH - tPHLI | (Figures 3, 7) (LTC1543C) (Figures 3, 7) (LTC15431) | q q | 0 4 1 6 0 4 21 | ns ns | | | | | | |
| O01aaa506 104 | O01aaa498 1200 | | VCEsat (mV) | | | | | | | | | | | | | VBEsat (mV) 1000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 103 | | 800 | _ | | | | 7 < | | 7 | | | | | | | | | | | | | | | | | | | | | | | | | | | 102 | | | | | | | | | | | | 600 | 7 | | | | | | | | | | | | | | | | | | | | | | 400 | 7 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IU 10-1 1 10 102 103 104 lc (mA) IC/IB = 50; Tamb = 25 YC. Fig 7. Collector-emitter saturation voltage as a function of collector current; typical values. | LUU 10-1 1 10 102 103 104 lc (mA) IC/IB = 10. (1) Tamb = -55 IC. (2) Tamb = 25 YC. (3) Tamb = 100 IC. Fig 8. Base-emitter saturation voltage as a function of collector current; typical values. | | O01aaa499 | O01aaa500 | | ItUU VBEsat | | | | | | | | | | | | | IUUU | | | | | | | | | 7 | | | | (mV) | | | | | | | | | | | | | VBEsat (mV) | | | | | | | J | | | | | 1000 | | | | | | | | | j | | | 800 | | | | | | | | | | | | | | | | | | | | | | | | 800 | | | | | 7 | | | | | | | | | | | j7 | | | | | | | 600 | | | | | | | | | | | | 600 | | | | | | | | | | | | 7 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tuu 10-1 1 10 102 103 104 lc (mA) IC/IB = 20; Tamb = 25 YC. Fig 9. Base-emitter saturation voltage as a function of collector current; typical values. | tuu 10-1 1 10 102 103 104 lc (mA) IC/IB = 50; Tamb = 25 YC. Fig 10. Base-emitter saturation voltage as a function of collector current; typical values. | | | | | | | | | | | | | | | | | | | | | | | | | |
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