ha16174p Renesas Electronics Corporation., ha16174p Datasheet - Page 3

• Manufacturer Part Number: ha16174p
• Description: Power Factor Correction Controller Ic
• Manufacturer: Renesas Electronics Corporation.

HA16174P/FP
Block Diagram
Rev.1.00 Jan 06, 2006 page 3 of 36
PFC-ON
PGADJ
CAO
IAC
CS
EO
RT
CT
FB
10
12
14
13
9
7
8
5
4
IAC
IMO = K × {IAC × (VEO – 1V)}
0.1 µ
2.5 V
K
15.4 µs
IMO
V
2.40 V
Oscillator
0.65 V
AMP
770 ns
Selector
0.50 V
0.95 V
Gain
3.3 k
S
R
65 kHz
3.6 V
1.75 V
1.60 V
C
Q
Q
AMP
K = 0.20
K = 0.05
Select
Gain
B+PG
RESET
VCC
VREF
GOOD
27.5 V
RAMP
55 k
PFC-DT
16
S
R
Q
Q
VREF
VREF
H
L
C
IN
OUT
IN
OUT
SS
9.0 V
LIMIT
10.5 V
Reset:
Vcc<5 V
UVLO
Shut
down
– 0.30 V
2.688 V
2.638 V
2.638 V
R
S
PFC
DELAY
PG
DELAY
R
S
R
S
3.0 V
Q
Q
Q
Q
Q
Q
PFC
DELAY
DELAY
RESET
PG
DELAY
Shut
down
FB LOW
B+OVP
UVL
B+PG
RESET
S
R
S
R
Q
Q
Q
Q
Generator
5 V VREF
B+GOOD
PFC-OFF
VREF
GOOD
2.50 V
1.25 V
VREF GOOD
DELAY
RESET
Gate Driver
+/– 1.0 A (PEAK)
Out
In
5 V Internal Bias
VREF
Circuit Ground
4.0 V
25 µA
VREF
100 µA
10 µA
15
11
6
1
3
2
VREF
OUT
DELAY
SS
GND
PG