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Электронный компонент: HA16142P

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HA16141P/FP, HA16142P/FP
PFC and PWM Controller
ADE-204-036D (Z)
Preliminary
Rev.4
Sep. 2001
Description
The HA16141P/FP and the HA16142P/FP are power supply controller ICs combining an AC-DC converter
switching controllers for power factor correction and off-line power supply switching controllers. PFC
(Power factor correction) section employs average current mode PWM and off-line power supply control
section employs peak current mode PWM.
The HA16142P/FP is the change version of HA16141P/FP's PWM maximum on duty cycle.
The PFC operation can be turned on and off by external control signal. Use of this on/off function makes it
possible to disable PFC operation at a low line voltage, or to perform remote control operation from the
transformer secondary side. The PFC power supply boosted output voltage is not only fed to an error
amplifier input signal but also fed to as the boost voltage monitor circuit.
PG signal is put out if the boost
voltage is out-of-spec.
The PWM controller, which begins operation at the same time as release of the IC's UVLO (under-voltage
lockout) is suitable for auxiliary power supply use in a multi-output power supply system.
Features
Synchronized PFC and PWM timing
Self oscillation with fixed frequency
PFC : 100 kHz (
15 %)
PWM : 200 kHz (
15 %)
PFC function on/off control
PFC boosted output voltage monitor
High-output current gate drivers
PFC driver peak current :
1.5 A typ.
PWM driver peak current :
1.0 A typ.
PWM maximum on duty cycle
72% min (HA16141P/FP)
49.5% max (HA16142P/FP)
HA16141P/FP, HA16142P/FP
Rev.4, Sep. 2001, page 2 of 2
Pin Arrangement
(Top view)
1
2
3
4
5
6
7
8
PWM-CS
PWM-EO
O.C
PFC-EO
TIM
PFC-FB
IAC
PFC-ON
16
15
14
13
12
11
10
9
GND
PWM-OUT
PFC-OUT
VCC
VREF
2/
CAO
PFC-CS
Pin Description
Pin No.
Symbol
Function
1 GND
Ground
2
PWM-OUT
Power MOS FET driver output (PWM control)
3
PFC-OUT
Power MOS FET driver output (PFC control)
4 VCC
Supply
voltage
5 VREF
Reference
voltage
6
PG
Power Good signal output (open-drain output)
7
CAO
Average current control error amp. output
8
PFC-CS
PFC control current sense signal input
9
PFC-ON
PFC function on/off signal input
10
IAC
Multiplier reference current input
11
PFC-FB
PFC control error amp. input
12
TIM
Overcurrent timer time setting
13
PFC-EO
PFC control error amp. output
14
O.C
Overcurrent detector signal input
PWM control error amp. output (photocoupler input also possible) (HA16141 only)
15 PWM-EO
PWM control feedback voltage signal input (HA16142 only)
16
PWM-CS
PWM control current sense signal input
HA16141P/FP, HA16142P/FP
Rev.4, Sep. 2001, page 3 of 3
Block Diagram
13
11
2.5V
-0.5V
PFC-FB
14
O.C
9
PFC-ON
PFC-EO
PFC-V
AMP
PWM-V
AMP
PFC-C
AMP
PFC-C
LIMIT
7
CAO
4
5 VREF
1 GND
2 PWM-OUT
16 PWM-CS
3 PFC-OUT
VCC
10
IAC
2.5V
100kHz
1.5A
200kHz
Multiplier
Integrator
LATCH
RES
VCC
VCC
5R
2.7k
PFC/PWM
Supervisor
1.0A
Over
Current Det.
Gain
Selector
8
PFC-CS
PFC Control
UVLO
VREF
Oscillator
PWM Control
R
12
6
TIM
15
PWM-EO
2/
HA16141 only