NCP1239: Fixed Frequency Current Mode Controller for Flyback Converter with HV startup
|
|
»View Reliability Data
»View Material Composition » Product Change Notification |
The NCP1239 is a fixed-frequency current-mode controller featuring the Dynamic Self-Supply. This function greatly simplifies the design of the auxiliary supply and the Vcc capacitor by activating the internal startup current source to supply the controller during start-up, transients, latch, stand-by etc.
With a supply range up to 35 V, the controller hosts a jittered 65 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 minimum level of 26 kHz. As the power further goes down, the part enters skip cycle while limiting the peak current that insures excellent efficiency in light load condition.
It features a timer-based fault detection that ensures the detection of overload and an adjustable compensation to help keep the maximum power independent of the input voltage.
Features | Benefits | ||||
---|---|---|---|---|---|
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
Applications | End Products | |
---|---|---|
|
|
Technical Documentation & Design Resources
Application Notes (2) | Videos (1) |
Data Sheets (1) | Evaluation Board Documents (4) |
Package Drawings (1) |
Evaluation/Development Tool Information
Product | Status | Compliance | Short Description | Action | |
---|---|---|---|---|---|
NCP1239B65WGEVB | Active |
|
65W, 19V, Power Supply Evaluation Board |
Availability & Samples
|
Specifications
|
|
|
|
|
|
|
|
|
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Case Outline |
|
|
|
|
|||||||||||||
NCP1239AD100R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227 | ||||||||
NCP1239AD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227
|
||||||||
NCP1239BD100R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227
|
||||||||
NCP1239BD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227
|
||||||||
NCP1239CD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227 | ||||||||
NCP1239DD100R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227 | ||||||||
NCP1239DD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227
|
||||||||
NCP1239ED100R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227
|
||||||||
NCP1239ED65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933
|
||||||||
NCP1239FD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933 | ||||||||
NCP1239GD100R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933 | ||||||||
NCP1239HD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933 | ||||||||
NCP1239ID65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933
|
||||||||
NCP1239KD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933
|
||||||||
NCP1239LD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933 | ||||||||
NCP1239MD65R2G | Active, Not Rec |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933
|
||||||||
NCP1239ND65R2G | Active, Not Rec |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.3227
|
||||||||
NCP1239PD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933
|
||||||||
NCP1239QD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933
|
||||||||
NCP1239RD65R2G | Active |
|
NCP1239 | SOIC-7 | 751U | 1 | 260 | Tape and Reel | 2500 | $0.2933
|
Market Leadtime (weeks) | : | 4 to 8 |
ON Semiconductor (2020-09-02 00:00) | : | 15,000 |
Market Leadtime (weeks) | : | 8 to 12 |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | 8 to 12 |
Market Leadtime (weeks) | : | 8 to 12 |
ON Semiconductor (2020-09-02 00:00) | : | 10,000 |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | 4 to 8 |
ON Semiconductor (2020-09-02 00:00) | : | 12,500 |
Market Leadtime (weeks) | : | 4 to 8 |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | 8 to 12 |
Market Leadtime (weeks) | : | 4 to 8 |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | 8 to 12 |
Market Leadtime (weeks) | : | 4 to 8 |
ON Semiconductor (2020-09-02 00:00) | : | 12,500 |
Market Leadtime (weeks) | : | 8 to 12 |
ON Semiconductor (2020-09-02 00:00) | : | 17,500 |
Product
Description
Pricing ($/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
NCP1239AD100R2G
$0.3227
Pb
A
H
P
Active
Flyback
Current Mode
100
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239AD65R2G
$0.3227
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239BD100R2G
$0.3227
Pb
A
H
P
Active
Flyback
Current Mode
100
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239BD65R2G
$0.3227
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239CD65R2G
$0.3227
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239DD100R2G
$0.3227
Pb
A
H
P
Active
Flyback
Current Mode
100
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239DD65R2G
$0.3227
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239ED100R2G
$0.3227
Pb
A
H
P
Active
Flyback
Current Mode
100
Yes
8
Yes
No
Yes
35
500 / 500
SOIC-7
NCP1239ED65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
No
Yes
35
500 / 500
SOIC-7
NCP1239FD65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239GD100R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
100
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239HD65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239ID65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
No
Yes
35
500 / 500
SOIC-7
NCP1239KD65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239LD65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
NCP1239PD65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
No
Yes
35
500 / 500
SOIC-7
NCP1239QD65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
No
Yes
35
500 / 500
SOIC-7
NCP1239RD65R2G
$0.2933
Pb
A
H
P
Active
Flyback
Current Mode
65
Yes
8
Yes
Yes
Yes
35
500 / 500
SOIC-7
Case Outlines
751U
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.