ON Semiconductor NCP1252BDR2G
- Part Number:
- NCP1252BDR2G
- Manufacturer:
- ON Semiconductor
- Ventron No:
- 3257805-NCP1252BDR2G
- Description:
- IC REG CTRLR FLYBK ISO PWM 8SOIC
- ECAD Model:
-
- Datasheet:
- NCP1252BDR2G
Description
The NCP1252 controller is designed for cost-effective and reliable AC-DC switching supplies, particularly for ATX power supplies. It utilizes an internally fixed timer to detect output overload without relying on auxiliary Vec. The Brown-Out input provides protection against low input voltages and enhances converter safety. The SOIC-8 package saves PCB space and is suitable for cost-sensitive projects.
Features
Peak Current Mode Control
Adjustable Switching Frequency up to 500 kHz
Jittering Frequency ±5% of the Switching Frequency
Latched Primary Over Current Protection with 10 ms Fixed Delay
Delayed Operation Upon Start-up via an Internal Fixed Timer
Adjustable Soft-start Timer
Auto-recovery Brown-Out Detection
UC384X-like UVLO Thresholds
Vec Range from 9 V to 28 V with Auto-recovery UVLO
Internal 160 ns Leading Edge Blanking
Adjustable Internal Ramp Compensation
500 mA /-800 mA Source / Sink Capability
Applications
Power Supplies for PC Silver Boxes, Games Adapters
Flyback and Forward Converters
The NCP1252 controller is designed for cost-effective and reliable AC-DC switching supplies, particularly for ATX power supplies. It utilizes an internally fixed timer to detect output overload without relying on auxiliary Vec. The Brown-Out input provides protection against low input voltages and enhances converter safety. The SOIC-8 package saves PCB space and is suitable for cost-sensitive projects.
Features
Peak Current Mode Control
Adjustable Switching Frequency up to 500 kHz
Jittering Frequency ±5% of the Switching Frequency
Latched Primary Over Current Protection with 10 ms Fixed Delay
Delayed Operation Upon Start-up via an Internal Fixed Timer
Adjustable Soft-start Timer
Auto-recovery Brown-Out Detection
UC384X-like UVLO Thresholds
Vec Range from 9 V to 28 V with Auto-recovery UVLO
Internal 160 ns Leading Edge Blanking
Adjustable Internal Ramp Compensation
500 mA /-800 mA Source / Sink Capability
Applications
Power Supplies for PC Silver Boxes, Games Adapters
Flyback and Forward Converters
ON Semiconductor NCP1252BDR2G technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor NCP1252BDR2G.
- Factory Lead Time5 Weeks
- Lifecycle StatusACTIVE (Last Updated: 3 days ago)
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case8-SOIC (0.154, 3.90mm Width)
- Number of Pins8
- Operating Temperature-25°C~125°C TJ
- PackagingTape & Reel (TR)
- Published2008
- JESD-609 Codee3
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations8
- ECCN CodeEAR99
- Terminal FinishTin (Sn)
- SubcategorySwitching Regulator or Controllers
- Terminal PositionDUAL
- Terminal FormGULL WING
- Number of Functions1
- Frequency500kHz
- Base Part NumberNCP1252
- Pin Count8
- Number of Outputs1
- Output Voltage18V
- Input Voltage-Nom15V
- Analog IC - Other TypeSWITCHING CONTROLLER
- Output Current800mA
- Voltage - Supply (Vcc/Vdd)9V~28V
- Control FeaturesFrequency Control, Soft Start
- TopologyFlyback, Forward
- Control ModeCURRENT-MODE
- Frequency - SwitchingUp to 500kHz
- Halogen FreeHalogen Free
- Control TechniquePULSE WIDTH MODULATION
- Rise Time26ns
- Fall Time (Typ)22 ns
- Nominal Input Voltage10V
- Switcher ConfigurationSINGLE
- Internal Switch(s)No
- Fault ProtectionCurrent Limiting
- Max Duty Cycle80 %
- Output IsolationIsolated
- Voltage - Start Up10V
- Height1.5mm
- Length5mm
- Width4mm
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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