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MM1291JWBE
MM1291JWBE - Brand New MITSUMI IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
Outline
This is a protection IC for one-cell series that protects lithium ion batteries during excess charging, discharging, or overcurrent. If abnormalities occur during charging and excess voltage is applied, it has a function that turns off the external FET switch when voltage is applied to each battery beyond a specified time (overcharging detection). It also has a function that turns off the external FET switch when the voltage for each battery falls below a set voltage, to prevent excess discharge when discharging the battery (discharging detection). At that time, the IC is switched to low current consumption mode. Also, when there is a large current flow due to shorting or other reasons, there is a functions for turning off the external FET switch (overcurrent detection). These function comprise a protection circuit, with few external parts, for lithium ion batteries.
Features
1. Current consumption (during overcharging) VCC=4.5V VCC pin 40µA typ. VIN
pin 3µA typ.
2. Current consumption (normal) VCC=3.5V VCC pin 7µA typ. VIN pin 2µA typ.
3. Current consumption (during excess discharge) VCC=1.9V 0.7µA typ.
4. Consumption current (during excess discharge) VCC=1.0V 0.17µA max.
5. Overcharge detection voltage (Ta=-20°C~+70°C) A 4.35V±50mV
B 4.25V±50mV
C 4.10V±50mV
6. Overcharge detection hysteresis A 200mV typ.
B 200mV typ.
C 27mV typ.
7. Overcharge non-induction time CTD=0.082µF 1S typ.
8. Excess discharge voltage 1 VCS=0V 2.6V±0.1V
9. Excess discharge voltage 2 VCS=0.05V 2.4V±0.1V
10.Excess discharge reset voltage 2.9V±0.12V
11.Excess discharge during non-induction 10mS typ.
12.Overcurrent detection voltage A 100mV±10mV
B 100mV±10mV
C 150mV±15mV
13.Reset after overcurrent detection load release
14.Overcurrent detection non-induction time 10mS typ.
Applications
1. Cellular phones
2. PHS
3. MD
4. others
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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