NCP1615_16 Datasheet, PDF (1/46 Pages) ON Semiconductor – High Voltage High Efficiency Power Factor Correction Controller

NCP1615
High Voltage High
Efficiency Power Factor
Correction Controller
The NCP1615 is a high voltage PFC controller designed to drive
PFC boost stages based on an innovative Current Controlled
Frequency Foldback (CCFF) method. In this mode, the circuit
operates in critical conduction mode (CrM) when the inductor current
exceeds a programmable value. When the current is below this preset
level, the NCP1615 linearly decays the frequency down to a minimum
of about 26 kHz at the sinusoidal zero−crossing. CCFF maximizes the
efficiency at both nominal and light load. In particular, the standby
losses are reduced to a minimum. Innovative circuitry allows near−
unity power factor even when the switching frequency is reduced.
The integrated high voltage start−up circuit eliminates the need for
external start−up components and consumes negligible power during
normal operation. Housed in a SOIC−14 or SOIC−16 package, the
NCP1615 incorporates the features necessary for robust and compact
PFC stages, with few external components.
www.onsemi.com
16
1
SOIC−16 NB
CASE 752AC
14
1
SOIC−14 NB
CASE 751AN
MARKING DIAGRAMS
16
14
NCP1615xxG
AWLYWW
NCP1615xxG
AWLYWW
1
1
General Features
• High Voltage Start−Up Circuit with Integrated Brownout Detection
• Input to Force Controller into Standby Mode
• Restart Pin Allows Adjustment of Bulk Voltage Hysteresis in
NCP1615xx = Specific Device Code
xx
= A, A1, B, C, C2, C3, C4, C5, D or D2
A
= Assembly Location
WL = Wafer Lot
Y
= Year
Standby Mode
• Skip Mode Near the Line Zero Crossing
WW = Work Week
G
= Pb−Free Package
• Fast Line / Load Transient Compensation
• Valley Switching for Improved Efficiency
• High Drive Capability: −500 mA/+800 mA
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
• Wide V_CC Range: from 9.5 V to 28 V
• Input Voltage Range Detection
• Open Pin Protection for FB and FOVP/BUV Pins
• Input X2 Capacitor Discharge Circuitry
• Internal Thermal Shutdown
• Power Saving Mode (PSM) Enables < 30 mW No−load
• Bi−Level Latch Input for OVP and OTP
Power Consumption
• This is a Pb and Halogen Free Device
• Bypass/Boost Diode Short Circuit Protection
• Open Ground Pin Protection
Safety Features
• Adjustable Bulk Undervoltage Detection (BUV)
• Soft Overvoltage Protection
• Line Overvoltage Protection
• Overcurrent Protection
Typical Applications
• PC Power Supplies
• Off Line Appliances Requiring Power Factor Correction
• LED Drivers
• Flat TVs
HVFB
FB
Restart
FOVP/BUV
VControl
FFControl
Fault
STDBY
HV PIN CONNECTIONS
FB
VCC
DRV
GND
CS/ZCD
PFCOK
Restart
FOVP/BUV
VControl
FFControl
Fault
PSTimer
STDBY
HV
VCC
DRV
GND
CS/ZCD
PFCOK
NCP1615 16 Pins (Top View)
NCP1615 14 Pins (Top View)
© Semiconductor Components Industries, LLC, 2016
1
June, 2016 − Rev. 8
Publication Order Number:
NCP1615/D