UCS2113 datasheet(5/62 Pages) MICROCHIP

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DS20005680B-page 5

UCS2113

Port Power Switch

Port Power Switch - DC Parameter

Overvoltage Lockout

VS_OV

—6

—

Note 2

VS Low Threshold

VS_UVLO

—2.5

—

Note 2

VS Low Hysteresis

VS_UVLO_HYST

—100

—

Note 2

On Resistance

RON_PSW

—40

—



4.75V < VS < 5.25V

VS Leakage Current

ILEAK_VS

—

µA

Sleep state into VS pin on one

channel (Note 1)

Back-Voltage Protection

Threshold

VBV_TH

—150

—

VBUS > VS

VS > VS_UVLO

Leakage Current

ILKG_1

—0

µA

VDD < VDD_TH,

Leakage current from VBUS pins

to the VDD and the VS pins

(Note 1)

ILKG_2

—0

µA

VDD > VDD_TH,

Leakage current from VBUS pins

to the VS pins, when the power

switch is open

Selectable Current Limits

ILIM1

—530

—

ILIM Resistor = 0 or 47 k

(530 mA setting)

ILIM2

—960

—

ILIM Resistor = 10 k or 56 k

(960 mA setting)

ILIM3

—

1070

—

ILIM Resistor = 12 k or 68 k

(1070 mA setting)

ILIM4

—

1280

—

ILIM Resistor = 15 k or 82 k

(1280 mA setting)

ILIM5

—

1600

—

ILIM Resistor = 18 k or 100 k

(1600 mA setting)

ILIM6

—

2130

—

ILIM Resistor = 22 k or 120 k

(2130 mA setting)

ILIM7

2500

2670

2900

ILIM Resistor = 27 k or 150 k

(2670 mA setting)

ILIM8

3000

3200

3400

ILIM Resistor = 33 k or VDD

(3200 mA setting)

Pin Wake Time

tPIN_WAKE

—3

—

SMBus Wake Time

tSMB_WAKE

—4

—

Idle Sleep Time

tIDLE_SLEEP

—200

—

First Thermal Shutdown

Stage Threshold

TTSD_LOW

—

120

—

°C

Die Temperature at which the

power switch will open if it is in

constant current mode

First Thermal Shutdown

Stage Hysteresis

TTSD_LOW_HYST

—

°C

Hysteresis for TTSD_LOW func-

tionality. Temperature must drop

by this value before any of the

power switches can be closed.

TABLE 1-2:

ELECTRICAL SPECIFICATIONS (CONTINUED)

Electrical Characteristics: Unless otherwise specified, VDD = 4.5V to 5.5V, VS = 2.9V to 5.5V,

VPULLUP = 3V to 5.5V, TA = -40°C to 105°C. All typical values at VDD = VS = 5V, TA = 27°C.

Characteristic

Symbol

Min.

Typ.

Max.

Unit

Conditions

Note 1:

This parameter is characterized, not 100% tested.

This parameter is ensured by design and not 100% tested.

The current measurement full scale range maximum value is 3.4A. However, the UCS2113 cannot report values above

ILIM (if IBUS_R2MIN  ILIM) or above IBUS_R2MIN (if IBUS_R2MIN > ILIM and ILIM  1.6A).

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