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Description
The R5426D112FA-TR is an electronic component model belonging to the IC Chips product category. It is a protection IC designed to prevent over-charge and discharge of rechargeable one-cell Lithium-ion (Li+) batteries. This IC also includes a short circuit protector to prevent large external short circuit currents. It is composed of voltage detectors, a reference unit, a delay circuit, a short circuit protector, and a logic circuit. The IC provides over-charge detection and resets when the charging voltage crosses the detector threshold. It also has a high accuracy detector threshold and a variety of detector thresholds for both over-charge and over-discharge conditions. The R5426D112FA-TR is available in a small SOT-23-6/6-pin package.
Specifications and Features
- Low supply current:
- Supply current Typ. 3.0µA
- Standby current (detecting over-discharge) Typ. 0.3µA (for R5421NxxxC)
- Typ. 1.0µA (for R5421NxxxF)
- High accuracy detector threshold:
- Over-charge detector (Topt=25°C) ±25mV (Topt=0 to 50°C) ±30 mV
- Over-discharge detector ±2.5%
- Variety of detector threshold:
- Over-charge detector threshold 4.0V - 4.4V step of 0.005V
- Over-discharge detector threshold 2.0V - 3.0V step of 0.005V
- Built-in protection circuit:
- Excess current protection 0.05V - 0.4V step of 0.005V
- Accuracy ±15%
- Output delay of over-charge: Time delay at C3=0.01µF and VDD=4.3V
- 75ms for R5421N111C
- Output delay of over-discharge: VDD=2.4V with built-in capacitor
- 10ms for R5421N111C/112C
Application Scenarios
The R5426D112FA-TR is commonly used as a Li+ one-cell protector for battery packs. It is also suitable for high precision protectors in cell phones and other devices that use a one-cell Li+ battery.
Comparison
Advantages- Provides over-charge and over-discharge protection for one-cell Li+ batteries
- High accuracy detector thresholds
- Variety of detector thresholds available
- Built-in protection circuit for excess current protection
- Small package size
Disadvantages- Specifically designed for one-cell Li+ batteries
- Limited to protection functions, may not provide other features
- Low supply current:
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
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Popular parts of the same kind
- Datasheet: Download R5426D112FA-TR
- Chipdatas Part: CD86-R5426D112FA-TR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/07/01 07:11 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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