APW7066 datasheet(4/35 Pages) ANPEC

4 / 35 page

Rev. A.8 - Aug., 2009

APW7066

www.anpec.com.tw

Electrical Characteristics (Cont.)

APW7066

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

INPUT SUPPLY POWER (CONT.)

VCC Rising

4.15

4.23

4.4

VCC Falling

3.9

4.0

4.15

VCC12 Rising

7.55

7.8

Power-On Reset Threshold

VCC12 Falling

7.1

7.3

7.55

SYSTEM ACCURACY

Outputs 1 and 3 Reference Voltage

0.6

Output 2 Reference Voltage

3.3V

Outputs 1 and 2 System Accuracy

-0.8

0.8

Output 3 System Accuracy

-0.8

0.8

OSCILLATOR

Accuracy

-20

Frequency

FS/SYNC pin open

240

300

360

kHz

Adjustment Range

FS/SYNC pin: resistor to GND; resistor

to VCC12

800

kHz

Sawtooth Amplitude

2.1

Duty-Cycle Range

ERROR AMPLIFIER (OUT1 AND OUT2)

Open-Loop Gain

RL = 10k

Ω to ground

Open-Loop Bandwidth

CL = 100pF, RL = 10k

Ω to ground

MHz

Slew Rate

CL = 100pF, RL = 10k

Ω to ground

µs

EA Offset

COMP1/2 to FB1/2; compare to internal

VREF/REFIN

Maximum Output Voltage

RL = 10k

Ω to ground; (may trip

short-circuit)

VCC

Output High Source Current

COMP1/2, VCOMP=2V

-50

Output Low Sink Current

COMP1/2, VCOMP=2V

PROTECTION AND MONITOR

Under-Voltage Threshold (COMP1 and

COMP2)

Causes PGOOD to go low; if there for a

filter time, implies the COMP pin(s) is

out-of-range, and shuts down IC

3.3

UV Filter Time

Based on internal oscillator clock

frequency (nominal 300kHz = 3.3

µs

clock period)

Clock

pulses

PGOOD Low Voltage

IPGOOD = 2mA

0.1

0.3

LINEAR REGULATOR (OUT3)

EA Offset

DRIVE3 to FB3; compare to internal

VREF

DRIVE3 High Output Voltage

VCC12

DRIVE3 High Output Source Current

1.5

DRIVE3 Low Output Sink Current

2.5

Operating Conditions: V

CC = 5V, VCC12 = 12V, TA = 0 to 70°C, unless Otherwise Specified.

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