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TEA1738L
TEA1738L - Brand New NXP Semiconductors AC DC Converters, Offline Switchers
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 TEA1738(L) is a low cost Switched Mode Power Supply (SMPS) controller IC
intended for flyback topologies. The TEA1738(L) operates in peak current and
frequency control mode. Frequency jitter has been implemented to reduce
ElectroMagnetic Interference (EMI). Slope compensation is integrated for
Continuous Conduction Mode (CCM) operation.
The TEA1738(L) IC includes OverPower Protection (OPP). This enables the
controller to operate under overpower situations for a limited amount of time.
Two pins, VINSENSE and PROTECT, are reserved for protection purposes. Input
UnderVoltage Protection (UVP), output OverVoltage Protection (OVP) and
OverTemperature Protection (OTP) can be implemented using a minimal number of
external components.
At low power levels the primary peak current is set to 25 % of the maximum
peak current and the switching frequency is reduced to limit switching losses.
The combination of fixed frequency operation at high output power and
frequency reduction at low output power provides high efficiency over the
total load range.
The TEA1738(L) enables low cost, highly efficient and reliable supplies for
power requirements up to 75 W to be designed easily and with a minimum number
of external components.
Features and benefits
Features
■ SMPS controller IC enabling low-cost applications
■ Large input voltage range (12 V to 30 V)
■ Integrated OverVoltage Protection (OVP) on pin VCC
■ Very low supply current during start-up and restart (10 μA typical)
■ Low supply current during normal operation (0.55 mA typical without load)
■ Overpower or high/low line compensation
■ Adjustable overpower time-out
■ Adjustable overpower restart timer
■ Fixed switching frequency with frequency jitter to reduce EMI
■ Frequency reduction at medium power operation to maintain high efficiency
■ Frequency reduction with fixed minimum peak current at low power to maintain
high efficiency at low output power levels
■ Frequency increase at peak power operation
■ Slope compensation for CCM operation
■ Low and adjustable OverCurrent Protection (OCP) trip level
■ Adjustable soft start
■ Two protection inputs (e.g. for input UVP and OTP)
■ IC overtemperature protection
Applications
■ All applications requiring efficient and cost-effective power supply solutions up to 75 W.
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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