UCS1002-1 datasheet(19/116 Pages) MICROCHIP

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Programmable USB Port Power Controller with Charger Emulation

Datasheet

SMSC UCS1002

Revision 1.4 (07-16-13)

DATASHEET

Port Power Switch

Port Power Switch - DC Parameter

Over-voltage Lockout

VS_OV

On Resistance

RON_PSW

4.75 V < VS < 5.25 V

VS Leakage Current

ILEAK_VS

2.2

µA

Sleep state

into VS pin

Back-voltage Protection

Threshold

VBV_TH

150

VBUS > VS

VS > VS_UVLO

Back-drive Current

IBD_1

µA

VDD < VDD_TH,

Any powered power pin to any

unpowered power pin. Current

out of unpowered pin.

IBD_2

µA

VDD > VDD_TH,

Any powered power pin to any

unpowered power pin, except

for VDD to VBUS in Detect

power state and VS to VBUS in

Active power state. Current out

of unpowered pin.

Selectable Current Limits

ILIM1

450

467

500

ILIM Resistor = 0 or 47 k

(500 mA setting)

ILIM2

810

839

900

ILIM Resistor = 10 k

Ω or 56 kΩ

(900 mA setting)

ILIM3

900

932

1000

ILIM Resistor = 12 k

Ω or 68 kΩ

(1000 mA setting)

ILIM4

1080

1112

1200

ILIM Resistor = 15 k

Ω or 82 kΩ

(1200 mA setting)

ILIM5

1350

1385

1500

ILIM Resistor = 18 k

Ω or

100 k

(1500 mA setting)

ILIM6

1620

1702

1800

ILIM Resistor = 22 k

Ω or

120 k

(1800 mA setting)

ILIM7

1800

1892

2000

ILIM Resistor = 27 k

Ω or

150 k

(2000 mA setting)

ILIM8

2250

2355

2500

ILIM Resistor = 33 k

Ω or VDD

(2500 mA setting)

Pin Wake Time

tPIN_WAKE

3ms

Table 3.3 Electrical Specifications (continued)

VDD = 4.5 V to 5.5 V, VS = 2.9 V to 5.5 V, VPULLUP = 3V to 5.5V, TA = -40 °C to 85 °C

all Typical values at VDD = VS = 5 V, TA = 27 °C unless otherwise noted.

CHARACTERISTIC

SYMBOL

MIN

TYP

MAX

UNIT

CONDITIONS

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