SI9145BY - Brand New SILICON LABS DC DC Switching Controllers
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Description
Si9145BY is a current mode PWM controller designed specifically for ISDN power supplies. It is packaged in a 14-pin SOIC package and provides all the necessary functions for implementing a single-switch PWM with minimal external components. This controller is equipped with a 200-V depletion mode MOSFET, allowing it to be powered directly from the high input bus without the need for an external start-up circuit. The Start and Stop input voltage thresholds can be programmed within the operating input voltage range using a resistor divider. The Start voltage (+VIN) must be greater than the Stop voltage (+VIN).
Specifications and Features
- BiC/DMOS Technology
- Current Mode Control
- Max 50% Duty Cycle Operation
- 1.3-MHz Error Amp
- Up to 500-kHz Internal Oscillator
- Soft-Start
- 0.6-V Fast Over-Current Protection
- <5-µA Supply Current for +VIN <18 V
- 23.5-V to 200-V Input Voltage Range
- Programmable Start/Stop Capability
- Internal Start-Up Circuit
- Power_Good Output
Application Scenarios
This model is specifically designed for ISDN power supplies. It can be used in various applications that require a current mode PWM controller, such as telecommunications equipment, networking devices, and power supplies.
Comparison
Advantages- Integration of necessary functions
- Can be powered directly from high input bus
- Programmable Start/Stop capability
- Internal Start-Up Circuit
Disadvantages- Designed specifically for ISDN power supplies
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Similar parts: 3823 , Click to view
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Datasheet
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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:
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Payment:
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Popular parts of the same kind
- Datasheet: Download SI9145BY
- Chipdatas Part: CD94-SI9145BY
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/02 11:19 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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