ha16158 Renesas Electronics Corporation., ha16158 Datasheet - Page 22

• Manufacturer Part Number: ha16158
• Description: Pfc & Pwm Control Ic
• Manufacturer: Renesas Electronics Corporation.

HA16158P/FP
Application Circuit Example
Rev.2.00 Jan 30, 2007 page 22 of 23
4.4µ
From
VRB1(B+monitor1)
720k
VREF
0.082
(5W)
18.6k
100
Rec+
Rec−
20k
36k
1.02M
200k
270p
750k
1M
0.47µ
3000p
1M
0.015µ
1k
1200p
0.68µ
GND
PFC
PFC
PFC
PFC
-ON
-CS
-EO
CAO
IAC
-FB
RT
From PFC-OUT
I
Circuit
Ground
AC
V
1.5mH
EO
T1
I
0.1µ
MO
OSCILLATOR
7.7µs
2.5V
+
1.5V
1.2V
−
K
770ns
= K {I
Q1
15.4µs
0.65V
VREF GOOD
1.6V
I
3.3k
MO
OCP
3.2V
AC
(450V)
+
−
330µ
GAIN SELECTOR
3.85µs
× (V
65kHz
3.4V
+
130kHz
EO
PFC-C
2.80V
2.60V
2.40V
1.50V
3.80V
3.40V
−
+
+
−
−
+
− 1V)}
20V
−
+
SUPERVISOR
AMP
VREF
PFC-OVP
B+ LOW
PFC-OFF
CT
PWM-RES
PFC-DT
RAMP
56µ
K = 0.20
K = 0.05
S
R
Q
+
27.5V
−
+
−0.5V −0.25V
PFC-C
51k(5W)
VCC
H
L
SOFT START
16V
10V
+
−
LIMIT
UVLO
PWM stop
PFC stop
from
auxiliary
f/64 Divider
OCP
OVP Latch
Power Saving for PWM
UVL
−
+
+
−
−
+
R
S
R
S
RAMP
Q S
5V VREF
Generator
CT
Q
Q
R
S
R
1V
Vref
Q
PWM-RES
−
+
VREF GOOD
5V Internal Bias
VREF
GOOD
25µA
To
PFC-FB
7.1V
VREF GOOD
VCC
R
In
Out
2R
Vref
3.5V
25µA
Gate Driver
±1.0A(PEAK)
Gate Driver
±1.0A(PEAK)
1.4V
+
+
−
−
2.5k
4.0V
VRB1
1.7V
H
L
500k
3.3k
VREF
PFC
-OUT
PWM
-OUT
PWM
-COMP
PWM
-CS
PFC
-SS
PWM
-SS
0.47µ
1000p
2200p
(385V dc)
VREF
B+ OUT
(1W)
0.66
GND
VREF
To
Q1 gate
To
main trans
0.1µ
Unit R: Ω
240
Q2
VREF
620
200
0.033µ
C: F