NCP1253BSN100T1G
Precision-controlled switching for efficient DC-DC conversi
Inventory:3,976
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Part Number : NCP1253BSN100T1G
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Package/Case : TSOP-6
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Brand : Onsemi
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Components Classification : AC DC Converters, Offline Switches
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Datesheet : NCP1253BSN100T1G DataSheet (PDF)
Overview of NCP1253BSN100T1G
The NCP1253 is a highly integrated PWM controller capable of delivering a rugged and high performance offline power supply in a tiny TSOP-6 package. With a supply range up to 28 V, the controller hosts a jittered 65 kHz or 100 kHz switching circuitry operated in peak current mode control. When the power on the secondary side starts to decrease, the controller automatically folds back it's switching frequency down to a minimum level of 26 kHz. As the power further goes down, the part enters skip cycle while limiting the peak current. To avoid sub harmonic oscillations in CCM operation, adjustable slope compensation is available via the series inclusion of a simple resistor in the current sense signal. Besides the auto-recovery timer-based short-circuit protection, an Over Voltage Protection on the Vcc pin protects the whole circuitry in case of optocoupler destruction or adverse open loop operation.
Key Features
- Frequency Foldback down to 26 kHz and Skip-Cycle in Light Load
- Internal Ramp Compensation
- Frequency Jittering in Normal and Frequency Foldback modes
- Over Voltage Protection (OVP) monitoring on the Vcc pin
- Timer-based Auto-Recovery or Latched Short-Circuit Protection
Application
- Offline Adapters
- AC-DC converters
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Status | Active | Compliance | PbAHP |
Package Type | TSOP-6 | Case Outline | 318G-02 |
MSL Type | 1 | MSL Temp (°C) | 260 |
Container Type | REEL | Container Qty. | 3000 |
ON Target | Y | Topology | Flyback |
Control Mode | Current Mode | fsw Typ (kHz) | 100 |
Stand-by Mode | Yes | UVLO (V) | 8.8 |
Short Circuit Protection | Yes | Latch | No |
Soft Start | Yes | VCC Max (V) | 28 |
Drive Cap. (mA) | 300 / 500 | Pricing ($/Unit) | $0.2036Sample |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package
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Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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