AN8027 Просмотр технического описания (PDF) - Panasonic Corporation

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производитель

AN8027

AC-DC switching power supply control IC with standby mode

Panasonic Corporation 

Voltage Regulators

AN8027, AN8037

s Electrical Characteristics at VCC = 18 V, Ta = 25°C

Parameter

Symbol

Conditions

Min Typ Max Unit

Low voltage protection (U.V.L.O.) VCC-START

initial startup supply voltage

13.4 14.9 16.4 V

Low voltage protection (U.V.L.O.) VCC-STOP

operation stop supply voltage

7.7 8.6 9.5 V

Overvoltage protection (OVP)

operating supply voltage

VCC-OVP

19.4 20.5 21.6 V

Overvoltage protection (SD)

operating threshold voltage

VTH1-SD

3.5 3.9 4.3 V

Overvoltage protection (SD)

reset threshold voltage

VTH2-SD

0.4 0.8 1.2 V

Remote (RM) operating

threshold voltage

VTH1-RM

0.05 0.15 0.3 V

Shutdown (SD) standby voltage

Overvoltage protection (OVP)

reset supply voltage

VSTB-SD SD pin = Open

VCC-OVPC

1.0 1.5 2.0 V

7.3 8.1 8.9 V

Remote (RM) operating time

circuit current

ICC-RM VCC = 18 V, VSD = 0 V

3.0 4.0 5.0 mA

Overvoltage protection (SD)

operating time circuit current 1

ICC1-SD VCC = 10 V, VSD = 4.3 V → Open 1.2 1.5 1.8 mA

Overvoltage protection (SD)

operating time circuit current 2

ICC2-SD VCC = 18 V, VSD = 4.3 V → Open 3.6 4.5 5.4 mA

Timer latch (SD) charge current 1

Timer latch (SD) charge current 2

Timer latch (SD) start feedback

current

ISD1-TIM

ISD2-TIM

IFB-TIM

FB pin = Open, ITR = −270 µA

FB pin = Open, ITR = −1.64 mA

ITR = −1 mA, ROCP = 30 kΩ

68 102 136 µA

179 267 355 µA

− 0.95 − 0.75 − 0.55 mA

Transformer reset detection (TR)

threshold voltage

VTH-TR

0.15 0.25 0.35 V

Transformer reset detection (TR) VCLH-TR ITR = 3 mA

upper limit clamp voltage

0.55 0.7 0.85 V

Transformer reset detection (TR) VCLL-TR ITR = −3 mA

lower limit clamp voltage

− 0.3 − 0.15 0

V

Overcurrent protection (CLM)

threshold voltage

VTH-CLM

−220 −200 −180 mV

Oscillator (CF) upper limit voltage VH-CF

Oscillator (CF) lower limit voltage 1 VL1-CF

Oscillator (CF) lower limit voltage 2 VL2-CF

Oscillator (CF) maximum

on-period current gain

GION-CF

FB pin = Open, CF = 2 200 pF

FB pin = Open, CF = 2 200 pF

IFB = − 0.5 mA, CF = 2 200 pF

FB pin = Open, ITR = −750 µA

3.8 4.2 4.6 V

0.8 1.0 1.2 V

0 0.1 0.3 V

0.8 1.0 1.2 

Oscillator (CF) maximum

on-period current

ION-CF ITR = 0 mA

200 250 300 µA

Oscillator (CF) minmum

off-period current 1

IOFF1-CF IFB = − 0.4 mA

−880 −660 −440 µA

3

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