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MAX8831EWE+T
MAX8831EWE+T - Brand New Maxim Integrated LED Drivers
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
General Description
The MAX8831 integrates a 60mA, 28V PWM DC-DC step-up converter with five low- dropout LED current regulators for display and keypad backlighting in cell phones, PDAs, and other portable devices. The IC provides up to 90% efficiency over the entire input voltage range of 2.7V to 5.5V. The step-up converter operates at a fixed 2MHz switching frequency, enabling the use of very small external components to achieve a compact circuit area. For improved efficiency, the step-up converter automatically transitions to pulse-skipping mode at light loads.
Features
♦ 28V Step-Up DC-DC Converter
Integrated NMOS Power Switch
90% Efficiency
Fixed 2MHz Switching
Pulse Skipping for Improved Light-Load Efficiency
Tiny External Components
♦ I2C Programmable (0x9A Write/0x9B Read), Compatible with 1.8V Logic
♦ Two 25mA Regulators for Display Backlighting
I2C-Programmable Output Current (50µA to 25.25mA)
128-Step Logarithmic Dimming
Individually Programmable Ramp (Up/Down) Timers
Low Dropout (200mV max)
♦ Three 5mA Current Regulators for Keypad Lighting
I2C-Programmable Output Current (50µA to 5.0mA)
32-Step Logarithmic Dimming
Individually Programmable Ramp (Up/Down) Timers
Individual Blink Rate and Duty Cycle Timers
Low Dropout (150mV max)
♦ Open/Short LED and Open-Circuit Diode Detection
♦ Thermal-Shutdown and Output Overvoltage Protection
♦ Ultra-Low 0.1mA Shutdown Current
♦ Tiny 2mm x 2mm, 16-Bump WLP Package
Applications
Cell Phones
PDAs
Smartphones
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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