-
Description
The R5421NxxxC/F Series are protection ICs designed specifically for over-charge/discharge of rechargeable one-cell Lithium-ion (Li+) batteries. These ICs feature a short circuit protector to prevent large external short circuit currents. Each IC consists of three voltage detectors, a reference unit, a delay circuit, a short circuit protector, and a logic circuit. The over-charge detector switches to a low level when the charging voltage exceeds a certain threshold, and the VD1 can be reset after detecting over-charge. The R5421NxxxC/F version also has a high output when the VDD voltage decreases below a certain level or when a load is connected to VDD after disconnecting the charger from the battery pack.
Specifications and features
- Low supply current: Typ. 3.0µA (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: 75ms for R5421N111C
- Output delay of over-discharge: 10ms for R5421N111C/112C
- Small package: SOT-23-6 / 6-pin
Application Scenarios
- Li+ one-cell protector for battery pack
- High precision protectors for cell-phones and any other gadgets using on board Li+ one-cell battery
Comparison
Advantages- Low supply current
- High accuracy detector threshold
- Variety of detector threshold
- Built-in protection circuit
- Small package
Disadvantages- Output delay of over-charge
- Output delay of over-discharge
-
Similar parts: 430483 , Click to view
-
Datasheet
-
Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
- View more
Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
- View more
-
Popular parts of the same kind
- Datasheet: Download R5421N131C-TR
- Chipdatas Part: CD86-R5421N131C-TR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/07/01 07:16 +0800
-
- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
-
The fee is charged according to the rule of PayPal.
-
The fee is charged according to the rule of PayPal.
-
Western Union charge US$0.00 banking fee.
-
We recommend to use bank transfer for large orders to save on handling fees.
-
DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.