S-8209AAF-T8T1S SII Semiconductor Integrated Circuit (Small Outline Packages) In Stock
SII Semiconductor S-8209AAF-T8T1S is a single-channel lithium-ion battery protection IC in a TSSOP-8 package. Provides overcharge, overdischarge, and overcurrent protection for 1-cell Li-ion battery packs with precision voltage detection thresholds. Available in stock worldwide with fast shipping.
- Manufacturer
- SII Semiconductor
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- S-8209AAF-T8T1S Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel Li-ion battery protection with precision overcharge detection voltage typically at 4.25 V for 1-cell pack safety
- TSSOP-8 (R-PDSO-G8) package with 0.65 mm pitch enables compact PCB layout in portable device battery management circuits
- Integrated overcurrent and short-circuit protection functions reduce external component count in slim Li-ion battery pack designs
Applications
The S-8209AAF-T8T1S is used in single-cell lithium-ion and lithium-polymer battery packs for portable electronics such as smartphones, wearable devices, and wireless earbuds requiring compact overcharge and overdischarge protection in an 8-pin TSSOP footprint. Its integrated protection functions simplify battery management circuit design, making it suitable for power banks, handheld scanners, and IoT devices that operate from a single Li-ion cell.
Specifications
| YTEOL | 6.25 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | BATTERY PROTECTOR |
| JESD-30 Code | R-PDSO-G8 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 8V |
| Supply Voltage-Min (Vsup) | 1.5V |
| Supply Voltage-Nom (Vsup) | 3.5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What protection functions does the S-8209AAF-T8T1S provide for a single Li-ion cell?
The S-8209AAF-T8T1S provides overcharge, overdischarge, and overcurrent protection for a single Li-ion cell, with a typical overcharge detection voltage of approximately 4.25 V and overdischarge detection near 2.4 V. These 3 protection modes guard the cell against the most common failure scenarios, extending battery life and preventing thermal runaway in compact portable devices.
Why is the TSSOP-8 package of the S-8209AAF-T8T1S preferred in slim battery pack designs?
The TSSOP-8 (thin shrink small outline) package measures approximately 3.0 mm x 4.4 mm with a 0.65 mm pitch and a slim body height under 1.2 mm, making it one of the most compact 8-pin housings for a battery protection IC. In slim wearable and smartphone battery packs where PCB area is measured in square millimeters, this small footprint allows the protection circuit to fit alongside the cell without adding bulk to the pack.
When would a designer choose the S-8209AAF-T8T1S over a multi-cell battery protection IC?
Designers select the S-8209AAF-T8T1S when the application uses a single Li-ion cell at a nominal 3.7 V with capacities up to a few thousand milliamp-hours, such as in earbuds, fitness trackers, or small IoT nodes. Multi-cell ICs carry higher cost and complexity for series voltage management that a 1-cell system does not need, making the S-8209AAF-T8T1S a lower-cost, simpler solution for single-cell packs.
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