 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LTC2919HMS-2.5-PBF Datasheet(PDF) 6 Page - Linear Technology |
|
||||||||||||||||||||||||||||||
LTC2919HMS-2.5-PBF Datasheet(HTML) 6 Page - Linear Technology |
|
|
6 / 16 page  LTC2919 6 2919f PI FU CTIO S (MSOP/DFN Package) SEL (Pin 1): Input Polarity Select Three-State Input. Con- nect to VCC, GND or leave unconnected in open state to select one of three possible input polarity combinations (refer to Table 1). VCC (Pin 2): Power Supply. Bypass this pin to ground with a 0.1μF (or greater) capacitor. Operates as a direct supply input for voltages up to 6V. Operates as a shunt regulator for supply voltages greater than 6V and should have a resistor between this pin and the supply to limit VCC input current to no greater than 10mA. When used without a current-limiting resistor, pin voltage must not exceed 6V. UVLO options allow VCC to be used as an accurate third fixed -10% UV supply monitor. OUT1 (Pin 3): Open-Drain Logic Output 1. Asserts low when positive polarity ADJ1 voltage is below threshold or negative polarity ADJ1 voltage is above threshold. Requires an external pull-up resistor and may be pulled above VCC. OUT2 (Pin 4): Open-Drain Logic Output 2. Asserts low when positive polarity ADJ2 voltage is below threshold or negative polarity ADJ2 voltage is above threshold. Requires an external pull-up resistor and may be pulled above VCC. RST (Pin 5): Open-Drain Inverted Reset Logic Output. Asserts low when any positive polarity input voltage is below threshold or any negative polarity input voltage is above threshold or VCC is below UVLO threshold. Held low for a timeout period after all voltage inputs are valid. Requires an external pull-up resistor and may be pulled above VCC. GND (Pin 6): Device Ground. REF (Pin 7): Buffered Reference Output. 1V nominal reference used for the offset of negative-monitoring ap- plications. The buffered reference can source and sink up to 1mA. The reference can drive a capacitive load of up to 1000pF. Larger capacitance may degrade transient performance. This pin does not require a bypass capacitor, nor is one recommended. Leave open if unused. TMR (Pin 8): Reset Timeout Control. Attach an external capacitor (CTMR) to GND to set a reset timeout period of 9ms/nF. A low leakage ceramic capacitor is recom- mended for timer accuracy. Capacitors larger than 1μF (9 second timeout) are not recommended. See Applica- tions Information for further details. Leaving this pin open generates a minimum timeout of approximately 400μs. A 2.2nF capacitor will generate a 20ms timeout. Tying this pin to ground will enable the internal 200ms timeout. Ty- ing this pin to VCC will disable the reset timer and put the part in comparator mode. Signals from the comparator outputs will then go directly to RST. ADJ2 (Pin 9): Adjustable Voltage Input 2. Input to volt- age monitor comparator 2 (0.5V nominal threshold). The polarity of the input is selected by the state of the SEL pin (refer to Table 1). Tie to GND if unused (with SEL = GND or Open). OUT1, OUT2, RST VOL vs Output Sink Current ISEL vs Temperature ISEL vs Temperature OUTPUT SINK CURRENT (mA) 0 0.6 0.8 1.0 20 2919 G16 0.4 0.2 0 5 10 15 25 30 TA = 150°C TA = 125°C TA = 25°C VCC = 3V NO PULL-UP R TA = –40°C TEMPERATURE (°C) –50 –25 –22 –18 –12 –10 0 50 75 2919 G17 –20 –14 –16 25 100 150 125 SEL = GND TEMPERATURE (°C) –50 –25 10 14 22 20 0 50 75 2919 G18 12 18 16 25 100 150 125 SEL = VCC TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted. |
Similar Part No. - LTC2919HMS-2.5-PBF |
|
Similar Description - LTC2919HMS-2.5-PBF |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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
