CALLM FA5332M, FA5331P, FA5331M Datasheet

FA5331P(M)/FA5332P(M)

FA5331P(M)/FA5332P(M)

Bipolar IC

For Power Factor Correction

■ Description

FA5331P(M) and FA5332P(M) are control ICs for a power
factor correction system. These ICs use the average current
control system to ensure stable operation. With this system, a
power factor of 99% or better can be achieved.
FA5331P(M) is a 1st generation IC and FA5332P(M) is 2nd
generation IC which light-load characteristics are improved.

■ Features

• Drive circuit for connecting a power MOS-FET(Io = ±1.5A)

• Pulse-by-pulse overcurrent and overvoltage limiting function

• Output ON/OFF control function by external signals

• External synchronizing signal terminal for synchronous
operation with other circuits

• Undervoltage malfunction prevention function

• Low standby current (90µA typical) for simple start-up circuit

• 16-pin package (DIP/SOP)

• ±2% accuracy reference voltage for setting DC output and
overvoltage protection [FA5332P(M) only]

• When there is a possibility of light-load operation,
FA5332P(M) is suitable.

■ Block diagram

■ Dimensions, mm

Á SOP-16

16

1

0.40

10.06

±0.1

9

8

1.27

Á DIP-16

FA5331P

16

1

0.81

19.4

±0.2

1.5

5.5

8

±0.3

7.8

+0.1

–0.05

0.20

0.7

0~10˚

9

6.5

2.0

Pin Pin Description
No. symbol

1 IFB Current error amplifier output
2 IIN– Inverting input to current error amplifier
3 VDET Multiplier input
4 OVP Overvoltage protection input
5 VFB Voltage error amplifier output
6 VIN– Inverting input to voltage error amplifier
7 GND Ground
8 OUT Output
9 VC Power supply to output circuit
10 VCC Power supply
11 CS Soft-start
12 ON/OFF Output ON/OFF control input
13 REF Reference voltage
14 SYNC Oscillator synchronization input
15 CT Oscillator timing capacitor and resistor
16 IDET Non-inverting input to current error amplifier

±0.25

2.54

FA5332P

16

1

0.71

±0.25

2.54

19.2

1.3

0.5

9

8

0.48

±0.1

±0.1

3.4

0.2min

6.3

3.6

0.51min

4.3max

3.1min

0~15˚

5.06max

2.54min

0~15˚

7.6

7.62

0~15˚

0.25

0~15˚

0.3

+0.1

–0.05

+0.1

–0.05

1

■ Absolute maximum ratings

Item Symbol Rating Unit

FA5331P(M) FA5332P(M)

Supply voltage VCC, VC 30 30 V
Output current IO ±1.5 ±1.5 A
Input voltage VSYNC, VON/OFF, VVIN– –0.3 to +5.3 –0.3 to +5.3 V

VVDET, VOVP
VIDET –10.0 to +5.3 –10.0 to +5.3 V

Total power dissipation Pd 850 (DIP-16) *1850 (DIP-16) *1mW
(Ta=25°C) 650 (SOP-16) *2650 (SOP-16) *

Operating temperature Topr –30 to +85 –30 to +85 °C
Storage temperature Tstg –40 to +150 –40 to +150 °C

2

■ Recommended operating conditions

Item Symbol FA5331P(M) FA5332P(M) Unit

Min. Max. Min. Max.

Supply voltage VCC, VC 10 28 10 28 V
IDET terminal input voltage VIDET –1.0 0 –1.0 0 V
VDET terminal input voltage VVDET 0 2.0 0 2.4 V
VDET terminal peak input voltage VPVDET 0.65 2.0 0.65 2.4 V
Oscillator timing capacitance CT – – 330 1000 pF
Oscillator timing resistance RT ––1075kΩ
Oscillation frequency fOSC 10 220 15 150 kHz
Noise filter resistance connected to IDET terminal

Rn 0 100 0 27 Ω

FA5331P(M)/FA5332P(M)

Notes:

1

Derating factor Ta > 25°C: 6.8mW/°C (on PC board)

*

2

Derating factor Ta > 25°C: 5.2mW/°C (on PC board)

*

■ Electrical characteristics (Ta=25°C, CT=470pF, RT=22kΩ, VCC=VC=18V)
Oscillator section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

Oscillation frequency fOSC CT=470pF 68 75 82 68 75 82 kHz

RT=22kΩ

Frequency variation 1 (due to supply voltage change) fdV VCC=10 to 30V 1 1 3 %
Frequency variation 1 (due to temperature change) f
Output peak voltage VOSC 3.55 3.55 V
Synchronizing input peak voltage VSYNC

dT

Ta=–30 to +85°C 5 58%

SYNC terminal voltage

1.5 1.5 V

Voltage error amplifier section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

Reference voltage Vr 1.48 1.54 1.60 1.519 1.550 1.581 V
Input bias current IBE –500 –50 –500 –50 nA
Open-loop voltage gain AVE 80 80 dB
Output voltage VOE+ No load 3.5 3.8 3.5 3.8 V

OE–

V

Output source current IOE+ VOE=0V –900 –900 µA

50 200 50 200 mV

2

FA5331P(M)/FA5332P(M)

Current error amplifier section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

Input threshold voltage VTH IDET VDET=0V –––03060mV

VFB=Vr, Rn=30Ω

Input bias current IBC IDET=0V –350 –230 –350 –250 –150 µA
Open-loop voltage gain A
Output voltage VOC+ No load 3.5 3.8 3.5 3.8 V

Output source curent IOC+ VIFB=0V –900 –900 µA

Reference voltage section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Output voltage VREF 4.8 5.0 5.2 4.8 5.0 5.2 V
Voltage variation 1 (by supply voltage variation) VRDV VCC=10 to 30V 25 25 mV
Voltage variation 2 (by load change) V

Multiplier section

VC

80 80 dB

VOC– 50 200 50 200 mV

Min. Typ. Max. Min. Typ. Max.

RDT

OR

I

=0.1 to 2mA 2 2 5 mV

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

VDET terminal input voltage V
VFB terminal input voltage VMVFB 1.5 3.5 1.5 3.5 V
Output current IM VIIN–=0V –65 –65 µA
Output voltage coefficient K –1.0 –1.0 –

MVDET

0 2.0 0 2.4 V

Pulse width modulation circuit section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

Maximum duty cycle DMAX 89 92 95 89 92 95 %

Output circuit section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

Output voltage VOL IO=100mA 1.3 1.8 1.3 1.8 V

VOH IO=–100mA 15.5 16.5 15.5 16.5 V

VCC=18V

Rise time tr No load 300 300 ns
Fall time tr No load 200 200 ns

Soft-start circuit section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

Input threshold voltage VTHCSO Duty cycle=0% 0.1 0.1 V

THCSM

V

Charge current ICHG CS terminal=0V –10 –10 µA

Duty cycle=DMAX 3.55 3.55 V

3

FA5331P(M)/FA5332P(M)

Overvoltage protection circuit section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

Input threshold voltage VTHOVP OVP terminal 1.56 1.64 1.72 1.617 1.650 1.683 V

Input threshold voltage/reference voltage(VTHOVP/ Vr) 움 – – – 1.044 1.065 1.086 –
Delay time TPDOVP 200 200 ns

Overcurrent limiting circuit section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Input threshold voltage V
Delay time TPDOCP 200 200 ns

THOCP

Output ON/OFF circuit section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Threshold voltage VTHONOFF Ta=–30°C – – – 3.7 4.3 V

Input current at ON ITHON ON/OFF terminal 60 120 – – µA

voltage

Min. Typ. Max. Min. Typ. Max.

IDET terminal –1.25 –1.15 –1.05 –1.20 –1.10 –1.00 V
voltage

Min. Typ. Max. Min. Typ. Max.

Ta=+25°C 2.0 3.5 2.8 3.4 V
Ta=+85°C – – – 1.5 2.8 V

voltage=3.5V
ON/OFF terminal – – 10 40 µA

voltage=VTHONOFF

Undervoltage lockout circuit section

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

OFF to ON threshold voltage VTHUON 14.3 15.3 16.3 14.6 15.3 16.0 V
ON to OFF threshold voltage ITHUOFF 7.6 8.3 9.0 7.6 8.3 9.0 V
Voltage hysteresis VUHYS 7.0 7.0 V

Overall device

Item Symbol Test condition FA5331P(M) FA5332P(M) Unit

Min. Typ. Max. Min. Typ. Max.

Standby current ICCST VCC=14V 90 140 90 140 µA
Operating-state supply current I
OFF-state supply current ICCOFF Pin 12=0V 1.1 1.8 1.1 1.8 mA

CCOP

10 15 10 15 mA

4