HA16142FP Datasheet, PDF (6/20 Pages) Renesas Technology Corp – PFC and PWM Controller

HA16141P/FP, HA16142P/FP
System Diagram
Rec+
Rec−
B+
1.8m
Q1
From PFC-OUT
+
470µ
(600V)
570k
(1/2W)
+
4.7µ
T1
To
710k
PFC-FB
VRB
From
4.7k
Q2 drain
VREF
820k
36k
CAO
Oscillator
200kHz
5µs
1µs (HA16141) ^CT
22.2V
2.3µs (HA16142) _PWM-RES
VCC
H
UVLO
L
5V Internal Bias
5V VREF
Generator
500ns
10µs
0.65V
3.4V
100kHz
PFC-DT
RAMP
VREF ^H
GOOD _L
UVL
VREF GOOD
3.3n
220p _IAC
910k
PFC
100 -CS
0.1
(5W)
10n
PFC
750k -EO
47n
4.7n
PFC
-FB
From
VRB(B+monitor)
720k
2.2µ
33k
PFC
-ON
51k
VREF
5.1k
Enable to
secondary
PG
IMO = K {IAC × (VEO − 1V)}
IAC
VEO K IMO
2.7k
−
+
VREF
PFC-CAMP 55k
−
+
−0.5V
+
−
PFC-CLIMIT
K = 0.25
R
Q
S
R
Q
S
Gate Driver
±1.5A(PEAK)
Gate Driver
±1A(PEAK)
K = 0.05
PFC-VAMP
2.5V
+
−
3.83V
3.63V
−
+
Gain Selector
Supervisor
+
−
2.75V
2.60V
−
+
2.34V
1.70V
−
+
0.1µ
1.5V
1.2V
VREF GOOD
+B HIGH
+B LOW
PFC-OFF
PWM-OFF
PWM-RES
R
Q
S
VCC ^5RB
HA16141 only
PWM-VAMP
−
RB
+
2.5V
2R
×1
R
Latch Block
+
S
Q
− _4V
R
− ^VCC
+ _7.1V
R
Q
+
S
− _2.5V
Over
Current
0.1µ
Detector
+
+
−
−
1V
0.3V
LOGIC LOGIC
5V
3V
38.2µ
26.2µ
Integrator
5.2µ
Circuit Ground Level
B+ OUT
(385V dc)
GND
VREF
0.1µ
PFC ^To
-OUT ^{Q1 gate}
To T1
PWM
-OUT
1
(1W)
PWM
-EO
51k
1n
0.47µ
External parts of
PWM-EO pin are
applies to HA16141
only.
PWM
-CS
O.C
0.1
(1W)
Current Monitor
TIM
1n
GND
Unit R: Ω
C: F
Note: The constants for the external components are for reference. Please confirm the operation when designing the system.
Rev.4, Sep. 2001, page 4 of 4