Datasheet for DC2191A-A:
- Manufacturer Part Number : DC2191A-A
- Manufacturer : AD
- Description : 2.5µA, 1% Accurate SOT-23 Comparator and Voltage Reference for Battery Monitoring IC
- Series : LTC1998
- Reference Price : USD 0
- Our Price : We have a better price, contact us by email
- Product Type : Comparators
- Function : Application Specific Comparators
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : LTC2000 + LT5579 Combo Board | 16-Bit 2.5Gsps DAC with Upconverting Mixer
- Pins : -
- MFG Package Case : -
- Part Type : EVAL
- Standard Packing Type : -
- Standard Packing Quantity : -
- Working Temperature : -
- Other Part Number : DC2191A-A
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LTC1998 is a micropower comparator and a precision adjustable reference in a 6-pin SOT-23 package that is optimized for lithium-ion low battery detection circuits.
The LTC1998 features a voltage detection circuit with an adjustable threshold voltage and hysteresis. The threshold voltage can be programmed from 2.5V to 3.25V with two external resistors. A 10mV to 750mV hysteresis can be added with a third external resistor.
A proprietary internal architecture maintains 1% threshold voltage accuracy over temperature with low cost 1% external resistors.
A separate power supply pin, VLOGIC, allows the battery-low logic output to operate below the battery voltage, allowing compatibility with low voltage microprocessors without a pull-up resistor. Power supply glitches are eliminated by preventing the cross-conducting current which occurs when the output changes state.
The LTC1998 operates with battery or supply voltages up to 5.5V and its battery-low output is valid for battery voltages above 1.5V.
Applications
- Lithium-Ion Battery-Powered Equipment
- PDAs
- Cell Phones
- Handheld Instruments
- Battery Packs
- Pagers
- Palm Top Computers
- POS Terminals
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
