NCP1631DR2G ON Semiconductor, NCP1631DR2G Datasheet - Page 7

• Manufacturer Part Number: NCP1631DR2G
• Description: IC CTLR PFC INTERLEAVED 16SOIC
• Manufacturer: ON Semiconductor

Specifications of NCP1631DR2G

• Mode: Critical Conduction (CRM), Discontinuous Conduction (DCM)
• Frequency - Switching: 130kHz
• Current - Startup: 100µA
• Voltage - Supply: 10 V ~ 15 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Vcontrol
FFOLD
ZCD2
ZCD1
Latch
OVP
FB
Rt
Generation of the oscillator
charge current I
function of V
(frequency fold−back)
Generation of the charge
current for the internal
timing capacitors (max
on−time setting for the
two phases)
BO_NOK
I
Vcc < Vcc(r eset)
0.955*Vref
Rt
Vovp = Vref
Vcc_OK
pfcOK
12% Vr ef
< 7 mA
V
Zero current
detection for
Zero current
detection for
OVLflag1
BO
Vout low
detect
phase 2
Vref
Error Amplifier
phase 1
OF F
Vr ef
REGUL
V
−
−
FF
+
+
DMG1
−
+
+
−
as a
−
+
IRt_low
V
3V
pfcOK
I
FF
DMG2
±20 mA
V
DRV1
DT
ZCD1
DRV2
( 0.6 V cl amp vo ltag e
4R
OVP
5R
I
UVP
Figure 2. Functional Block Diagram
CH
V
L SHDN
R
S
ZCD2
i s acti vated)
DRV1
On−time control
V
V
230 mA
BOcomp
pfcOK
for the two
REGUL
SK I P
All the RS latches are
phases
DT
RESET dom inant
Q
OVLflag1
http://onsemi.com
VD D
DRV2
OC P
SHDN
In−rush
Vton
processing
circuitry
TS D
Fault
management
OVP
Shutdown
7
OFF
Vton
Vpwm1
Vpwm2
Thermal
Internal
OFF
OC P
STOP
S
R
Lstup
CLK1
CLK2
SKIP
In−rush
In−rush
In−rush
I
I
CS
CS
SHDN
BO_NOK
UVP
IRt_low
CLK2
CLK1
Q
OF F
> 210 mA
> 14 mA
Q
Q
Stup
Vpwm2
UVLO
Vpwm1
STOP
STOP
ZCD1
ZCD2
V
with interleaving and
frequency foldback
ZCD1
Oscillator block
DRV1
DRV2
OFF
V
VD D
Vref
Iref
BOcomp
Vcc_OK
detection with
V
50−ms delay
Brown−out
ZCD2
Current Sense Block
proportional to I
L
L
S
R
S
R
pwm2
pwm1
Regul
REF5V
(Building of I
Q
Q
I
−
+
FF
BO_NOK
pfcOK
In−rush
Ics
Ou tpu t
Buffer 2
Ou tpu t
Buffer 1
Vcc(on)
Vcc(off)
Vcc
CS
COIL
Vcc
V
BO
)
pfcOK/
REF5V
Vcc
BO
OSC
CS
GND
DRV2
DRV1