Factory Lead Time
15 Weeks
Lifecycle Status
ACTIVE (Last Updated: 4 days ago)
Mounting Type
Mounting Type refers to the method by which an electronic component is attached to a printed circuit board (PCB) or other surface. Common mounting types include:
* Through-hole: Component leads are inserted into holes in the PCB and soldered on the other side.
* Surface-mount: Component is placed on the surface of the PCB and soldered in place.
* Press-fit: Component is pressed into place on the PCB without soldering.
* Socket: Component is inserted into a socket on the PCB, allowing for easy replacement.
The mounting type is determined by factors such as the component's size, shape, and power requirements.
Surface Mount
Package / Case
Package / Case refers to the physical housing or enclosure that encapsulates an electronic component. It provides protection, facilitates handling, and enables electrical connections. The package type determines the component's size, shape, pin configuration, and mounting options. Common package types include DIP (dual in-line package), SOIC (small outline integrated circuit), and BGA (ball grid array). The package also influences the component's thermal and electrical performance.
8-SOIC (0.154, 3.90mm Width), 7 Leads
Number of Pins
Number of Pins: Indicates the number of electrical connections available on the component. These pins are used to connect the component to other components or circuits on a printed circuit board (PCB). The number of pins determines the functionality and connectivity options of the component. It is important to ensure that the component has the correct number of pins for the intended application.
7
Operating Temperature
Operating Temperature is the range of temperatures at which an electronic component can function properly. It is typically specified in degrees Celsius (°C) and indicates the minimum and maximum temperatures at which the component can operate without experiencing damage or degradation. Operating Temperature is an important parameter to consider when designing electronic circuits, as it ensures that the components will function reliably in the intended operating environment.
-40°C~150°C TJ
Packaging
Tape & Reel (TR)
Part Status
Part Status is an electronic component parameter that indicates the availability and production status of a component. It is typically used to inform customers about the availability of a component, whether it is in production, end-of-life, or obsolete. Part Status can also provide information about any restrictions or limitations on the component's use, such as whether it is only available for certain applications or if it has been discontinued.
Active
Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a measure of the susceptibility of a surface mount electronic component to moisture-induced damage during soldering. It is classified into six levels, from 1 (least sensitive) to 6 (most sensitive). MSL is determined by the materials used in the component's construction, including the solderability of its terminals and the presence of moisture-absorbing materials. Components with higher MSL ratings require more stringent handling and storage conditions to prevent moisture absorption and subsequent damage during soldering.
1 (Unlimited)
Subcategory
Switching Regulator or Controllers
Output Voltage
Output Voltage is the voltage level produced by an electronic component when it is operating. It is typically measured in volts (V) and can be either positive or negative. The output voltage of a component is determined by its design and the input voltage applied to it. For example, a voltage regulator will produce a fixed output voltage regardless of the input voltage, while an amplifier will produce an output voltage that is proportional to the input voltage.
16V
Operating Supply Voltage
28V
Analog IC - Other Type
SWITCHING CONTROLLER
Output Current
Output Current is the maximum amount of current that an electronic component can deliver to a load without exceeding its specified operating limits. It is typically measured in amperes (A) or milliamperes (mA). Output Current is a critical parameter for selecting electronic components, as it determines the amount of power that the component can provide to a load.
800mA
Voltage - Supply (Vcc/Vdd)
8.9V~28V
Control Mode
CURRENT-MODE
Frequency - Switching
100kHz
Halogen Free
Halogen Free
Control Technique
PULSE WIDTH MODULATION
Fault Protection
Fault Protection is an electronic component parameter that indicates the component's ability to withstand and protect against electrical faults or abnormal conditions. It specifies the maximum fault current or voltage that the component can safely handle without sustaining damage or compromising its functionality. This parameter is crucial for ensuring the reliability and safety of electronic systems by preventing catastrophic failures and protecting sensitive components from damage.
Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage
Output Isolation
Isolated
Height
Height, in the context of electronic components, refers to the vertical dimension of the component. It is typically measured in millimeters (mm) or inches (in). Height is an important parameter to consider when designing and assembling electronic circuits, as it affects the overall size and form factor of the device. Components with a smaller height are often preferred for applications where space is limited, such as in portable devices or embedded systems.
1.5mm
Length
Length, in the context of electronic components, refers to the physical dimension of a component along its longest axis. It is typically measured in millimeters (mm) or inches (in). Length is a crucial parameter for determining the physical size and space requirements of a component on a printed circuit board (PCB) or other assembly. It also affects the component's electrical characteristics, such as inductance and capacitance, which can be influenced by the length of conductors or traces within the component.
5mm
RoHS Status
ROHS3 Compliant
Description
The NCP1246 is a fixed-frequency current-mode controller featuring Dynamic Self-Supply. This function simplifies the design of the auxiliary supply and Vcc capacitor by activating the internal startup current source to supply the controller during various operating conditions. It also contains a high-voltage detector that detects application unplug from the AC input line and triggers the X2 discharge current, enabling brown-out detection.
Features
Fixed-frequency current-mode operation (65 kHz and 100 kHz frequency options)
Frequency foldback and skip mode for maximized performance in light load and standby conditions
Timer-based overload protection with latched (Option A) or auto-recovery (Option B) operation
High-voltage current source with brown-out detection and dynamic self-supply
Frequency modulation for softened EMI signature
Adjustable overpower protection dependent on the bulk voltage
Latch-off input combined with the overpower protection sensing input
Vcc operation up to 28 V, with overvoltage detection
500/800 mA source/sink drive peak current capability
10 ms soft-start, 4 ms soft-start (AL/BL versions)
Internal thermal shutdown
No-load standby power <30 mW
X2 capacitor in EMI filter discharging feature
Applications
AC-DC adapters for notebooks, LCDs, and printers
Offline battery chargers
Consumer electronic power supplies
Auxiliary/housekeeping power supplies
Offline adapters for notebooks