LTC2953CDD-2#PBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
LTC2953CDD-2#PBF is a pushbutton on/off controller integrating dual-input battery monitoring, output supervision, and interrupt generation for system power management. Features adjustable thresholds in a 12-pin DFN package. Available from stock worldwide at competitive pricing.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- LTC2953CDD-2#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.2000(MOQ 10)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Pushbutton on/off control with debounce and programmable hold time prevents accidental power toggling in portable and handheld devices
- Dual-input battery monitor with adjustable threshold comparators enables simultaneous monitoring of two supply rails or battery voltages in a single IC
- Integrated output supervisor and µP interrupt output allows direct connection to MCU reset and interrupt pins, eliminating discrete supervisor components
Applications
LTC2953CDD-2#PBF is designed for portable electronics, handheld instruments, and battery-powered systems requiring reliable pushbutton power control combined with supply voltage monitoring. It manages system startup and shutdown sequences, alerts the host processor to undervoltage conditions through an interrupt output, and supervises the system output rail for brownout detection. The compact 12-pin DFN package and adjustable thresholds make it suitable for 1-cell to 4-cell Li-ion battery systems in consumer and industrial IoT devices.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1725 |
| YTEOL | 10 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | PUSHBUTTON ON/OFF CONTROLLER |
| JESD-30 Code | S-PDSO-N12 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 27V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.45mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## LTC2953CDD-2#PBF Alternates Showing results | Image |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does LTC2953CDD-2#PBF handle pushbutton debounce and prevent accidental power-off events?
LTC2953CDD-2#PBF incorporates internal debounce filtering with a programmable hold time set by an external capacitor, requiring the pushbutton to be pressed continuously for a minimum duration of 50 ms to 10 s before initiating a power-off sequence. This programmable hold time prevents accidental power-off from brief contact bounces or inadvertent button touches, which is critical in handheld instruments and wearable devices where button presses occur in mechanically demanding environments.
What dual battery monitoring capability does LTC2953CDD-2#PBF provide and how are thresholds configured?
LTC2953CDD-2#PBF features two independent voltage monitor inputs each with an adjustable threshold set by external resistor voltage dividers, enabling simultaneous monitoring of two battery cells, two power rails, or a battery voltage plus a regulated supply. Each monitor asserts the interrupt output when its input falls below the programmed threshold, allowing the host MCU to implement staged low-battery warnings with thresholds as low as 1 V and as high as the supply rail.
For a single-cell Li-ion powered embedded device, how does LTC2953CDD-2#PBF simplify the power path design compared to discrete components?
LTC2953CDD-2#PBF integrates pushbutton control, two voltage comparators, output supervision, and interrupt generation into a single 12-pin DFN measuring approximately 3 mm × 2 mm, replacing a discrete solution that would require a separate pushbutton controller IC, two comparator ICs, and an output supervisor — a minimum of 3 additional devices and 10 to 15 passive components. This integration reduces solution PCB area by approximately 50% and lowers BOM cost for single-cell 3.7 V Li-ion battery management circuits.
What does the -2 variant suffix in LTC2953CDD-2#PBF indicate compared to LTC2953CDD-1#PBF?
The -2 suffix in LTC2953CDD-2#PBF designates an active-high power enable output polarity for the ON signal, meaning the device drives the enable pin of the downstream power converter or load switch high to turn the system on. The -1 variant produces an active-low enable output, turning on inverting-enable regulators. Choosing the correct variant avoids an inverting logic gate in the power control path, reducing parts count by 1 component and simplifying the 3.3 V or 5 V power sequencing circuit.
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Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| 19+ | $4.2400 | $80.56 |
| 1000+ | $3.2000 | $3200.00 |
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