 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
AAT3527ICX-2.63-200-T1 Datasheet(PDF) 7 Page - Advanced Analog Technology, Inc. |
|
||||||||||||||||||||||||||||||
AAT3527ICX-2.63-200-T1 Datasheet(HTML) 7 Page - Advanced Analog Technology, Inc. |
|
|
7 / 9 page  Applications Information Reset Output Options The AAT3528 has an active low open drain output and the AAT3526/7 have a push-pull output. The AAT3528 may be used in multiple voltage systems with an external pull-up resistor. This allows the AAT3528 to interface to microprocessors with high- er supply voltages up to 5.5V (Figure 2). In the event of a power-down or brown-out condition, the reset signal remains valid until the V CC drops below 1.2V. To ensure validity down to ground, an external 100k Ω resistor should be connected between the RESET output and GND. Manual Reset Input A logic low signal on MR asserts a reset condition. Reset continues to be asserted as long as MR is low and for a minimum of 150ms after MR returns high. This input is internally pulled up to V CC via a 65kΩ resistor, so leaving the pin unconnected is accept- able if the manual reset function is not needed. The MR input is internally debounced which allows the use of a mechanical switch. It should be a normally- open momentary switch connected from MR to GND. Additionally, the MR pin can be driven from TTL, CMOS, or open drain logic outputs. Supply Voltage Transient Behavior In some cases, fast negative transients of short duration can appear on the V CC power supply. The AAT3526/7/8 series devices provide some immunity to line transients which can generate invalid reset pulses. Figure 1 shows typical behavior to short duration pulses versus RESET comparator over- drive. As shown in the Maximum Transient Duration vs. Reset Threshold Overdrive graph, when the tran- sient voltage becomes larger, the time allowed before asserting a reset becomes shorter (e.g., typ- ically a transient of 100mV below the reset threshold would have to present for more than 50 µs to cause a reset). Immunity can be increased by the addition of a small bypass capacitor of 0.1µF connected as close to the V CC pin as possible. AAT3526/7/8 MicroPower™ Supervisory Circuit with Manual Reset 3526.2006.03.1.6 7 Figure 2: Using Recommended Bypass Capacitor. Figure 3: Using AAT3528 Open Drain Output with Multiple Supplies. AAT3528 5V System +3.3V VCC VCC RESET 100k GND GND RESET INPUT MR +5.0V *AAT3528 Only AAT3526 AAT3527 AAT3528 µP V 0.1µF MR CC VCC VCC RESET (RESET) GND GND RESET INPUT 100k (nominal) * |
Similar Part No. - AAT3527ICX-2.63-200-T1 |
|
Similar Description - AAT3527ICX-2.63-200-T1 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
