NCP1250: PWM Controller, Current Mode, for Offline Power Supplies
|
|
»View Reliability Data
»View Material Composition » Product Change Notification |
The NCP1250 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 its 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. 40W Adapter
Over Power Protection (OPP) is a difficult exercise especially when no-load standby requirements drive the converter specifications. The ON proprietary integrated OPP lets you harness the maximum delivered power without affecting your standby performance simply via two external resistors. An Over Voltage Protection input is also combined on the same pin and protects the whole circuitry in case of optocoupler failure or adverse open loop operation.
Finally, a timer-based short-circuit protection offers the best protection scheme, letting you precisely select the protection trip point irrespective of a loose coupling between the auxiliary and the power windings.
Over Power Protection (OPP) is a difficult exercise especially when no-load standby requirements drive the converter specifications. The ON proprietary integrated OPP lets you harness the maximum delivered power without affecting your standby performance simply via two external resistors. An Over Voltage Protection input is also combined on the same pin and protects the whole circuitry in case of optocoupler failure or adverse open loop operation.
Finally, a timer-based short-circuit protection offers the best protection scheme, letting you precisely select the protection trip point irrespective of a loose coupling between the auxiliary and the power windings.
Features | Benefits | ||||
---|---|---|---|---|---|
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
Applications | End Products | |
---|---|---|
|
|
Technical Documentation & Design Resources
Evaluation/Development Tool Information
Product | Status | Compliance | Short Description | Action | |
---|---|---|---|---|---|
NCP1250B40WGEVB | Active |
|
40 W Notebook Adapter Demonstration Evaluation Board |
Availability & Samples
|
Specifications
|
Case Outlines
|
Application Diagram
|
Interactive Block Diagram
|
|
|
|
|
|
|
|
|
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Case Outline |
|
|
|
|
|||||||||||||
NCP1250ASN100T1G | Obsolete |
|
NCP1250 | TSOP-6 | 318G-02 | 1 | 260 | Tape and Reel | 3000 | |||||||||
NCP1250ASN65T1G | Lifetime |
|
NCP1250 | TSOP-6 | 318G-02 | 1 | 260 | Tape and Reel | 3000 | $0.1872
|
||||||||
NCP1250BP65G | Active |
|
NCP1250 | PDIP-8 | 626-05 | NA | Tube | 50 | $0.4
|
|||||||||
NCP1250BSN100T1G | Obsolete |
|
NCP1250 | TSOP-6 | 318G-02 | 1 | 260 | Tape and Reel | 3000 | |||||||||
NCP1250BSN65T1G | Active |
|
NCP1250 | TSOP-6 | 318G-02 | 1 | 260 | Tape and Reel | 3000 | $0.214 |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
PandS (2020-09-14 00:00) | : | >1K |
Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
fsw Typ (kHz)
Stand-by Mode
UVLO (V)
Short Circuit Protection
Latch
Soft Start
VCC Max (V)
Drive Cap. (mA)
Package Type
Application
Diagram - Block
Your request has been submitted for approval.
Please allow 2-5 business days for a response.
You will receive an email when your request is approved.
Please allow 2-5 business days for a response.
You will receive an email when your request is approved.
Request for this document already exists and is waiting for approval.