AIC1571 Ver la hoja de datos (PDF) - Analog Intergrations

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componentes Descripción

Fabricante

AIC1571

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

Analog Intergrations 

AIC1571

ELECTRICAL CHARACTERISTICS (Vcc=12V, TJ=25°C, Unless otherwise speci-

fied)

PARAMETER

TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNIT

VCC SUPPLY CURRENT

Supply Current

UGATE, LGATE, GATE2

ICC

and GATE3 open

1.8

5

mA

POWER ON RESET

Rising VCC Threshold

VOCSET=4.5V

VCCTHR

8.6

9.5

10.4

V

Falling VCC Threshold

VOCSET=4.5V

VCCTHF

8.2

9.2

10.2

V

Rising VIN2 Under-Voltage

Threshold

VIN2THR

2.5

2.6

2.7

V

VIN2 Under-Voltage Hys-

teresis

VIN2HYS

130

mV

Rising VOCSET1 Threshold

OSCILLATOR

VOCSETH

1.3

V

Free Running Frequency

RT=Open

F

170

200

230 KHz

Ramp. Amplitude

REFERENCE AND DAC

RT=open

∆VOSC

1.3

VP-P

DAC (VID0~VID4) Input Low

Voltage

VIDL

0.8

V

DAC (VID0~VID4) Input

High Voltage

VIDH

2

V

DACOUT Voltage Accuracy VDAC=1.3V~3.5V

-1.0

+1.0

%

FB2 Reference Voltage

VREF2

1.245 1.270 1.295

V

FB3 Reference Voltage

VREF3

1.250 1.275 1.300

V

3

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