PTLV4021R1YKAR Texas Instruments Integrated Circuit (BGA) In Stock
Texas Instruments PTLV4021R1YKAR is a single low-power voltage comparator with an integrated precision reference in a 4-ball DSBGA package. It features an open-drain output and ultra-low 5 nA bias current for always-on threshold detection. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- BGA
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- PTLV4021R1YKAR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTLV4021R1YKAR?
- Integrated precision voltage reference eliminates external reference components in threshold-detect circuits
- Ultra-low 5 nA average bias current extends battery life in always-on IoT sensing nodes
- 4-ball DSBGA package occupies minimal PCB area, ideal for space-constrained wearable designs
What is PTLV4021R1YKAR used for?
PTLV4021R1YKAR is ideal for battery-level detection, supply monitoring, and power-on reset circuits in portable and wearable electronics where board space and quiescent current are tightly constrained. Its integrated precision reference simplifies low-threshold alert circuits in IoT sensor nodes without adding a discrete reference IC. The open-drain output allows easy level shifting and wired-OR configurations with microcontroller GPIO pins.
What are the specifications of PTLV4021R1YKAR?
| Date Of Intro | 2018-10-21 |
| YTEOL | 0 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 0.005 µA |
| JESD-30 Code | S-PBGA-B4 |
| Number of Functions | 1 |
| Output Type | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Response Time-Nom | 450ns |
| Supply Voltage Limit-Max | 6V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | BALL |
| Terminal Pitch | 0.35mm |
| Terminal Position | BOTTOM |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PTLV4021R1YKAR datasheet?
PTLV4021R1YKAR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTLV4021R1YKAR?
Compatible alternatives and drop-in replacements for PTLV4021R1YKAR:
Frequently Asked Questions
How does the integrated precision reference in PTLV4021R1YKAR simplify a battery under-voltage lockout circuit?
Because PTLV4021R1YKAR includes a built-in precision reference, a designer only needs a resistor divider on the battery rail to set the trip threshold — no external reference IC or DAC is required. The 5 nA maximum bias current means the monitoring path draws negligible current from the cell, extending shelf life and runtime.
What PCB footprint does the PTLV4021R1YKAR 4-ball DSBGA package require, and why does that matter for wearables?
The 4-ball DSBGA (VFBGA) package has a 0.4 mm pitch and an overall outline under 1 mm × 1 mm, occupying less than 1 mm² of board area. For wearable devices where every square millimeter is competed for, this allows a fully functional comparator-plus-reference in a footprint smaller than a grain of rice.
In a multi-rail system, how does the open-drain output of PTLV4021R1YKAR support level-shifting to a 3.3 V microcontroller?
The open-drain output pulls low when the threshold is crossed and floats when not asserted. Tying a pull-up resistor — typically 100 kΩ — to the 3.3 V rail converts the output to a 3.3 V logic-compatible signal regardless of the comparator supply voltage, enabling safe connection to a 3.3 V MCU GPIO without any active level-shifting IC.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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