AIC1574CS 데이터 시트보기 (PDF) - Analog Intergrations

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AIC1574CS

5-bit DAC, Synchronous PWM Power Regulator with Triple Linear Controllers

Analog Intergrations 

AIC1574

n ELECTRICAL CHARACTERISTICS (Vcc=12V, TJ=25°C, Unless otherwise specified)

PARAMETER

TEST CONDITIONS

SYMBOL MIN. TYP. MAX. UNIT

VCC SUPPLY CURRENT

Supply Current

UGATE, LGATE, GATE3 and

VOUT2 open

POWER ON RESET

Rising VCC Threshold

VOCSET=4.5V

Falling VCC Threshold

VOCSET=4.5V

Rising VAUX Threshold

VAUX Threshold Hysteresis

Rising VOCSET1 Threshold

OSCILLATOR

Free Running Frequency

RT=Open

Total Variation

6kΩ<RT to GND<200kΩ

Ramp. Amplitude

RT=open

REFERENCE AND DAC

DAC (VID0~VID4) Input Low

Voltage

DAC (VID0~VID4) Input High

Voltage

DACOUT Voltage Accuracy VDAC=1.8V~3.5V

Bandgap Reference Voltage

Bandgap Reference Toler-

ance

LINEAR REGULATOR (OUT2, OUT3, OUT4)

Regulation

VSEN2 Regulation Voltage Select<0.8V

VSEN2 Regulation Voltage Select>2.0V

VSEN3 Regulation Voltage

VSEN3 Regulation Voltage

Under-Voltage Level

( VSEN/VREG)

VSEN Rising

Under-Voltage Hysteresis

(VSEN/VREG)

VSEN Falling

Output Drive Current (All

Linears )

VAUX-VDRIVE > 0.6V

ICC

3

mA

VCCTHR

10.4 V

VCCTHF 8.2

V

VAUXTHR

2.5

V

VAUXHYS

500

mV

VOCSETH

1.26

V

F

170 200 230 KHz

-15

+15 %

∆VOSC

1.5

VP-P

VIDL

0.8

V

VIDH

2.0

V

-1.0

+1.0 %

VREF

1.265

V

-2.5

+2.5 %

3

%

VREG2

1.5

V

VREG2

3.3

V

VREG3

1.5

V

VREG4

1.8

V

VSENUV

75

%

5

%

20

30

mA

4

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