FM2111-GB
Battery Protection IC Lithium-ion/Polymer SOT-23-6
Lithium battery protection IC
- Manufacturer
- FM
- Manufacturer part #
- FM2111-GB
- Store part #
- C2927920
- Package / case
- SOT-23-6
- Category
- Battery Management
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
1,880 in stock
#C2927920
Stock & price checked 5 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 20+ | ₹4.88 | ₹97.60 |
| 200+ | ₹3.77 | ₹754.00 |
| 600+ | ₹3.04 | ₹1,824.00 |
| 3,000+ | ₹2.67 | ₹8,010.00 |
| 9,000+ | ₹2.35 | ₹21,150.00 |
| 21,000+ | ₹2.18 | ₹45,780.00 |
20 × ₹4.88
₹97.60
excl. GST
₹115.17 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 3,000 per reel
FM2111-GB
₹97.60 for 20 + GST
Specifications
- Operating Temperature
- -40℃~+85℃
- Quiescent Current
- 100nA
- 0V Battery Charge
- Support
- Operating Voltage
- 1.5V~10V
- Type of Battery
- Lithium Battery
- Features
- Overcharge protection;Over-discharge protection;Overcurrent Protection;Short-Circuit Protection
- The Chip Type
- Protection IC
Packaging & compliance
- RoHS
- ROHS Compliant
- Lifecycle
- Active
- Packaging
- Tape & Reel (TR)
- Standard pack
- 3,000 / Reel
- Sold per
- Piece
- Minimum order
- 20 (multiples of 20)
- Unit weight
- 0.066 g
Overview
The FM2111-GB series is a high-precision overcharge and overdischarge protection circuit for single-cell rechargeable lithium batteries, integrating overvoltage charge protection, overvoltage discharge protection, and overcurrent discharge protection. Under normal operating conditions, the VDD pin voltage of the FM2111-GB remains between the overvoltage charge protection threshold (VOC) and the overvoltage discharge protection threshold (VOD), while the VM detection pin voltage remains between the charger detection voltage (VCHG) and the overcurrent discharge protection threshold (VEDI). In this state, both the COUT and DOUT pins output a high level, turning on the external charge control N-MOSFET Q1 and discharge control N-MOSFET Q2, respectively. This allows the battery to be charged via a charger or discharged through a load. The FM2111-GB performs overcharge/overdischarge protection by monitoring the voltage at the VDD or VM pin (relative to the VSS pin). When a charge/discharge protection condition occurs, COUT/DOUT transitions from high to low, switching Q1/Q2 from on to off and thereby halting the charge/discharge process. The FM2111-GB defines corresponding recovery conditions for each protection state; once a recovery condition is met, COUT/DOUT transitions from low to high, switching Q1/Q2 from off to on and returning the circuit to normal operation. A delay time is associated with each protection/recovery condition — the corresponding protection/recovery action is triggered only after the condition persists for the specified duration. If the protection/recovery condition clears before the delay time elapses, the circuit does not enter the protection/recovery state.
Applications
- Charge/discharge protection circuit for lithium batteries
- High-precision protector for phone batteries or other lithium batteries
Key features
- Ideal protection circuit for single-cell Li-ion or Li-polymer batteries
- High-accuracy protection voltage (overcharge/overdischarge) detection
- Selectable low-power mode enable/disable under overdischarge conditions
- High-accuracy overcurrent charge/discharge protection detection
- Battery short-circuit protection
- Multiple selectable detection voltage and delay time options
- Selectable 0V-battery charge enable/disable across different models
- Minimal external components
- Ultra-compact SOT23-6 package
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