CAT4237TD-GT3
LED Lighting Drivers LED Driver,Boost 8 LED,series
Brands: onsemi
Mfr.Part #: CAT4237TD-GT3
Datasheet: CAT4237TD-GT3 Datasheet (PDF)
Package/Case: SOT-23-5Thin,TSOT-23-5
RoHS Status:
Stock Condition: 6754 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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Add To BomCAT4237TD-GT3 General Description
The CAT4237 is a DC-DC step-up converter that delivers an accurate constant current ideal for driving LEDs. Operation at a constant switching frequency of 1 MHz allows the device to be used with small value external ceramic capacitors and inductor. LEDs connected in series are driven with a regulated current set by the external resistor R1. LED currents up to 40 mA can be supported over a wide range of input supply voltages from 2.8 V to 5.5 V, making the device ideal for battery-powered applications. The CAT4237 high-voltage output stage is perfect for driving six, seven or eight white LEDs in series with inherent current matching in LCD backlight applications.
LED dimming can be done by using a DC voltage, a logic signal, or a pulse width modulation (PWM) signal. The shutdown input pin allows the device to be placed in power-down mode with 'zero' quiescent current.
In addition to thermal protection and overload current limiting, the device also enters a very low power operating mode during 'Open LED' fault conditions.
Features
- Drives 6 to 8 White LEDs in series from 3 V
- Up to 87% efficiency
- Low Quiescent Ground Current 0.6 mA
- Adjustable Output Current (up to 40 mA)
- High Frequency 1 MHz Operation
- High Voltage Power Switch
- Shutdown current less than 1 µA
- Open LED low power mode
- Automatic Shutdown at 1.9 V (UVLO)
- Thermal shutdown protection
- Digital Still Cameras
Application
- Color LCD and Keypad Backlighting
- Digital Cameras
Specifications
Parameter | Value | Parameter | Value |
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Product Status | Last Time Buy | Type | DC DC Regulator |
Topology | Step-Up (Boost) | Internal Switch(s) | Yes |
Number of Outputs | 1 | Voltage - Supply (Min) | 2.8V |
Voltage - Supply (Max) | 5.5V | Voltage - Output | 30V |
Current - Output / Channel | 40mA | Frequency | 1MHz |
Dimming | Analog, PWM | Applications | Backlight |
Operating Temperature | -40°C ~ 85°C (TA) | Mounting Type | Surface Mount |
Package / Case | SOT-23-5 Thin, TSOT-23-5 | Supplier Device Package | TSOT-23-5 |
Base Product Number | CAT4237 |
Shipping
Shipping Type | Ship Fee | Lead Time | |
---|---|---|---|
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days | |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days | |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days | |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days | |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days | |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time:Shipping fee depend on different zone and country.
Payment
Terms of payment | Hand Fee | |
---|---|---|
Wire Transfer | charge US$30.00 banking fee. | |
Paypal | charge 4.0% service fee. | |
Credit Card | charge 3.5% service fee. | |
Western Union | charge US.00 banking fee. | |
Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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Step1 :Product
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Step2 :Vacuum packaging
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Step3 :Anti-static bag
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Step4 :Individual packaging
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Step5 :Packaging boxes
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Step6 :bar-code shipping tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
We provide high quality products, thoughtful service and after sale guarantee
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We have rich products, can meet your various needs.
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Minimum order quantity starts from 1pcs.
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Lowest international shipping fee starts from $0.00
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365 days quality guarantee for all products