NCP1562ADR2G DC-DC Power Conversion by ON Semiconductor

PWM Controller, High Performance, Active Clamp / Reset

Status: Active
Series: NCP1562
RoHS: Compliant
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The NCP1562x is a family of voltage mode controllers designed for dc-dc converters requiring high efficiency and low parts count. These controllers incorporate two in phase outputs with an overlap delay to prevent simultaneous conduction and facilitates soft switching. The main output is designed for driving a forward converter primary MOSFET. The secondary output is designed for driving an active clamp circuit MOSFET, a synchronous rectifier on the secondary side, or an asymmetric half bridge circuit. The NCP1562 family reduces component count and system size by incorporating high accuracy on critical specifications such as maximum duty cycle limit, undervoltage detector and overcurrent threshold. Two distinctive features of the NCP1562 are soft-stop and a cycle skip current limit with a time threshold. Softstop circuitry powers down the converter in a controlled manner if a severe fault is detected. The cycle skip detector enables a softstop sequence if a continuous overcurrent condition is present. Additional features found in the NCP1562 include line feedforward, frequency synchronization up to 1.0 MHz, cycle by cycle current limit with leading edge blanking (LEB), independent under and overvoltage detectors, adjustable output overlap delay, programmable maximum duty cycle, internal startup circuit and soft-start.

Where to Buy

Prices starting from US$1.08

Distributor Stock
Logo for Farnell
Farnell
from US$1.31
No stock
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Logo for Kruse
Kruse
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20,000
in stock
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Logo for EBV Elektronik
EBV Elektronik
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2,500
in stock
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Logo for Newark Electronics
Newark Electronics
from US$1.09
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Logo for Future Electronics
Future Electronics
from US$1.12
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Avnet America
from US$1.08
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element14
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Avnet Silica
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Features

Soft-Stop Powers Down Converter in a Controlled Manner
Independent Line Undervoltage and Overvoltage Detectors
Programmable Maximum Volt-Second Product
Programmable Soft-Start
Internal 100 V Startup Circuit
Dual Outputs with Adjustable Overlap Delay
>2 A Output Drive Capability
Cycle-by-Cycle Current Limit
Cycle Skip Initiated if Continuous Current Limit Condition Exists
Voltage Mode Operation with Input Voltage Feedforward
Fixed Frequency Operation up to 1 MHz
Bidirectional Frequency Synchronization
Accurate Programmable Maximum Duty Cycle
Precision 5 V Reference
Benefits
Eliminates Resonance Between Active Clamp Capacitor and Primary Inductance
Reduces External components
Prevents Transformer Saturation
Reduces Stress During Power Up
Eliminates the Need for External Components
Applications
High power isolated DC/DC converters
Desktop / Server PSU
Flat TV PSU
End Products
Power supplies
Telecom base station PSU

Specifications

Description NCP1562
Compliance Pb-free Halide free
Topology Forward
Phases 1
Control Mode Voltage Mode
VCC Min (V) 8
VCC Max (V) 100
fSW Typ (kHz) 1000
Package Type SOIC-16

Alternative Descriptions

IC VR SW PWM NCP1562A SOIC-16 | Kruse
Voltage Mode PWM Controller 20V 2A/1A 16-Pin SOIC T/R | EBV Elektronik
Ic,smps Controller,voltage-Mode,sop,16Pin,plastic |Onsemi NCP1562ADR2G | Newark Electronics
Switching Controllers HI PERF RESET PWM CONTLR | Future Electronics
IC, PWM CONTROLLER, CLAMP/RESET | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a NCP1562ADR2G?

Additional datasheets, footprints and schematics for NCP1562ADR2G are listed on our Part Details page. You can also find images and similar parts to NCP1562ADR2G on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for NCP1562ADR2G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view NCP1562ADR2G price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does NCP1562ADR2G fall under?

The NCP1562ADR2G is listed under Power Management > DC-DC Power Conversion > Controllers.

Can I view similar or alternative parts?

You can view similar parts to NCP1562ADR2G when available in the Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the NCP1562ADR2G you can contact the distributor directly for product support, shipping queries etc.

Is the NCP1562ADR2G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for NCP1562ADR2G have stock available?

Authorised distributors including Kruse, EBV Elektronik, Newark Electronics, Future Electronics and Avnet America have stock available or on a lead time for NCP1562ADR2G.

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