UCS1002-2 datasheet(17/114 Pages) MICROCHIP

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Programmable USB Port Power Controller with Charger Emulation

Datasheet

SMSC UCS1002

Revision 1.4 (07-16-13)

DATASHEET

SMBus / I2C Timing

Input Capacitance

CIN

5pF

Clock Frequency

fSMB

400

kHz

Spike Suppression

tSP

Bus Free Time Stop to

Start

tBUF

1.3

µs

Start Setup Time

tSU:STA

0.6

µs

Start Hold Time

tHD:STA

0.6

µs

Stop Setup Time

tSU:STO

0.6

µs

Data Hold Time

tHD:DAT

µs

When transmitting to the

master

Data Hold Time

tHD:DAT

0.3

µs

When receiving from the

master

Data Setup Time

tSU:DAT

0.6

µs

Clock Low Period

tLOW

1.3

µs

Clock High Period

tHIGH

0.6

µs

Clock / Data Fall Time

tFALL

300

Min = 20+0.1CLOAD ns

Clock / Data Rise Time

tRISE

300

Min = 20+0.1CLOAD ns

Capacitive Load

CLOAD

400

Per bus line

Timeout

tTIMEOUT

Disabled by default

Idle Reset

tIDLE_RESET

350

µs

Disabled by default.

High-speed Data Switch

High-speed Data Switch - DC Parameters

Switch Leakage Current

IHSW_OFF

±0.5

µA

Switch open - DPIN to DPOUT,

DMIN to DMOUT, or all four

pins to ground. VDD < VS.

Charger Resistance

RCHG

DPOUT or DMOUT to VBUS or

ground, see Figure 3.2

BC1.2 DCP charger emulation

active

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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