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 

AN8027, AN8037

Voltage Regulators

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

Parameter

Symbol

Conditions

Oscillator (CF) minmum

off-period current 2

IOFF2-CF IFB = − 0.8 mA

Minimun off-period threshold

feedback current

IFB-TOFF

Overcurrent protection (OCP) pin IOCP-OCP

source current

Output oscillator frequency

FOSC

CF = 2 200 pF, ITR = 475 µA,

IFB = − 0.5 mA

Pre-startup low-level output voltage VOL-STB VCC = 13.5 V, IOUT = 1 mA

Low-level output voltage

VOL IOUT = 0.1 A

High-lebel output voltage

VOH IOUT = − 0.1 A

Pre-startup circuit current 1

ICC-STB1 VCC = 13.5 V

Circuit current 1

ICC1-OPR1 VCC = 10 V

Circuit current 2

ICC2-OPR2 VCC = 18 V

Circuit current durring startup 1 ISTART1

Min Typ Max Unit

−210 −160 −110 µA

− 0.78 − 0.6 − 0.42 mA

−130 −100 −70 µA

50 65 80 kHz

 1.0 1.25 V

 0.9 2.0 V

15.5 16.3  V

75 100 125 µA

8.5 11.5 14.5 mA

9.0 12.0 15.0 mA

 200 380 µA

• Design reference data

Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.

Parameter

Symbol

Conditions

Min Typ Max Unit

Low voltage protection (U.V.L.O.) ∆VCC

start/stop supply voltage difference

 6.3  V

Remote (RM) reset threshold voltage

Timer latch (SD) overcurrent

protection time

VTH2-RM

TCLM-SD

 0.1  V

 0.1 

s

Transformer reset detection (TR) ∆VTH-TR

threshold hysteresis width

 0.05  V

Maximum on-period

Minimum off-period

Overcurrent protection (OCP)

power-on charge period

TON(max) ITR = 0 mA, IFB = − 0.2 mA

TOFF(min) ITR = 0 mA, IFB = − 0.2 mA

TSD(ON)-OCP IFB = − 0.5 mA, ROCP = 22 kΩ

 26.5  µs

 5  µs

 1.8  µs

Overcurrent protection (OCP)

power-off charge period

TSD(OFF)-OCP IFB = − 0.5 mA, ROCP = 30 kΩ

 8.8  µs

Output rise time

Output fall time

TR output response time

CLM output response time

Pre-startup circuit current 2

Only for AN8037

tr

tf

TTR

TCLM

ICC-STB2

10% to 90%, IOUT = 0 mA

10% to 90%, IOUT = 0 mA

VCC = 13.5 V,

Ta = −30°C to +85°C

 60  ns

 20  ns

 800  ns

 100  ns

50 100 150 µA

Timer period during startup

TSTART

 100  µs

4

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