R1280D002B-TR - Brand New RICOH IC Chips
In Stock:10060 ,Ready for Immediate Shipping
New
RoSH Lead free
In Stock:
10060,
Ready for Immediate Shipping
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Description
The R1280D002B-TR is a 2-channel PWM Step-up/Inverting DC/DC converter controller with a CMOS process. It consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a reference current unit, a protection circuit, and an under voltage lockout (UVLO) circuit. This IC can be used to compose a high-efficiency Step-up/Inverting DC/DC converter with additional components such as inductors, diodes, power MOSFETs, resistors, and capacitors. The output voltage can be adjusted with external resistors, and the soft-start time can be adjusted with external capacitors.
Specifications and features
- Input Voltage Range: 2.5V to 5.5V
- Built-in Latch-type Protection Function by monitoring duty cycle (Fixed Delay Time TYP. 100ms)
- Oscillator Frequency: 700kHz (R1280D002A, B), 200kHz (R1280D002C)
- Maximum Duty Cycle: TYP. 90% (Only applied to R1280D002B Series)
- High Reference Voltage Accuracy: ±1.5%
- U.V.L.O. Threshold: TYP. 2.2V (Hysteresis: TYP. 0.1V)
- Small Package: thin SON-10 (package thickness MAX. 0.9mm)
Application Scenarios
- Constant Voltage Power Source for portable equipment
- Constant Voltage Power Source for LCD and CCD
Comparison
Advantages- High efficiency
- Adjustable output voltage
- Adjustable soft-start time
Disadvantages- Limited to 2-channel PWM Step-up/Inverting DC/DC conversion
- Requires additional components for operation
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Datenblatt
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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:
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
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Weitere Informationen
- Datasheet: Download R1280D002B-TR
- Chipdaten Teil: CD94-R1280D002B-TR
- Lagerhaus: China, Hongkong
- Versenden: Innerhalb von 24 Stunden
- Kostenloser Versand: Yes
- Bevorzugter Versand: Yes, 3-5 days
- Letzte Aktualisierung: 2024/09/28 21:37 +0800
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