SC1544 Ver la hoja de datos (PDF) - Semtech Corporation

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componentes Descripción

Fabricante

SC1544

ACPI Controller for Advanced Motherboards

Semtech Corporation 

SC1544

POWER MANAGEMENT

PRELIMINARY

Absolute Maximum Ratings

Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified

in the Electrical Characteristics section is not implied.

Parameter

Symbol

Maximum

Units

Input Supply Voltage

V5VSB

-0.6 to 7

V

Logic Input Pins

-0.6 to V5VSB

V

Charge Pump Output Voltage

VFC

-0.6 to 13.2

V

Thermal Impedance Junction to Case

θJC

15.6

°C/W

Thermal Resistance Junction to Ambient

θJA

83.8

°C/W

Operating Ambient Temperature Range

TA

0 to 70

°C

Operating Junction Temperature Range

TJ

0 to 125

°C

Storage Temperature Range

TSTG

-65 to +150

°C

Lead Temperature (Soldering) 10 Sec.

TLEAD

300

°C

Electrical Characteristics(1)

Unless specified: all applicable silver box supplies (3.3V, 5V, 5VSB) ± 5%, GND = 0V, VSENSE PINS = VOUT(NOM), TA = 25°C. Values in bold apply over full

operating ambient temperature range.

Parameter

Symbol

Test Conditions

Min Typ Max Units

IN

Supply Voltage

Quiescent Current

V5VSB

IQ

All states (S0, S3, S5, disabled)

Undervoltage Lockout

Threshold Voltage

VUVLO

V5VSB Rising

Logic Inputs (EN, PCI, PWR_OK, /S3, /S5, TYPEDET, USB)

Logic Pin Sink Current(2)

Logic Pin Source Current

ISINK

ISOURCE

Threshold Voltage

VIH

VIL

1.8V Output

VBIAS = 5V, all logic pins

EN, VEN = 0V

PCI, TYPEDET, USB, VPIN = 0V

/S3, PWR_OK, VPIN = 0V

/S5, V/S5 = 0V

Output Voltage(3)

V1.8V

1mA ≤ IOUT ≤ 720mA

4.5

5.0

5.5

V

10

15 mA

20

3.5

4.0

4.4

V

0.1

1

µA

0.5

3

µA

50

200

100 400

150 600

2.4

V

0.8

V

1.764 1.800 1.836 V

1.746

1.854

 2002 Semtech Corp.

2

www.semtech.com

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