UCS1003-1 datasheet(6/138 Pages) MICROCHIP

6 / 138 page

UCS1003-1/2/3

DS20005346B-page 6

 2014-2015 Microchip Technology Inc.

TABLE 1-2:

ELECTRICAL CHARACTERISTICS

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 +85°C; all Typical values at VDD = VS = 5V, TA = +27°C.

Characteristic

Sym.

Min.

Typ.

Max.

Unit

Conditions

Power Supply

Supply Voltage

VDD

4.5

5.5

(Note 1)

Source Voltage

2.9

5.5

(Note 1)

Supply Current in Active

(IDD_ACTIVE + IVS_ACT)

IACTIVE

—

650

750

µA

Average current, IBUS =0 mA

Supply Current in Sleep

(IDD_SLEEP + IVS_SLEEP)

ISLEEP

—

µA

Average current,

VPULLUP  VDD

Supply Current in Detect

(IDD_DETECT + IVS_DETECT)

IDETECT

—

185

—

µA

Average current,

no portable device attached

Power-on Reset

VS Low Threshold

VS_UVLO

—2.5

—

VS voltage increasing

VS Low Hysteresis

VS_UVLO_HYST

—100

—

VS voltage decreasing

VDD Low Threshold

VDD_TH

—4

—

VDD voltage increasing

VDD Low Hysteresis

VDD_TH_HYST

—500

—

VDD voltage decreasing

I/O Pins – SMCLK (UCS1003-1), SMDATA (UCS1003-1), EM_EN, M1, M2, PWR_EN, S0, LATCH, ALERT#, A_DET#

(UCS1003-1 and UCS1003-3), CHRG# (UCS1003-2) – DC Parameters

Output Low Voltage

VOL

——

0.4

ISINK_IO = 8 mA,

SMDATA, ALERT#,

A_DET#, CHRG#

Input High Voltage

VIH

2.0

—

PWR_EN, EM_EN, M1, M2,

LATCH, S0, SMDATA, SMCLK

Input Low Voltage

VIL

—

0.8

PWR_EN, EM_EN, M1, M2,

LATCH, S0, SMDATA, SMCLK

Leakage Current

ILEAK

—

±5

µA

Powered or unpowered,

VPULLUP  VDD

Interrupt Pins – AC Parameters

ALERT#, A_DET# Pins

Blanking Time

tBLANK

—25

—

ALERT# Pin

Interrupt Masking Time

tMASK

—5

—

SMBus/I2C Timing (UCS1003-1 only)

Input Capacitance

CIN

—5

—

Clock Frequency

fSMB

—

400

kHz

Spike Suppression

tSP

—50

(Note 2)

Bus Free Time Stop to Start

tBUF

1.3

—

µs

Note 1:

For split supply systems using the Attach Detection feature, VS must not exceed VDD +150 mV.

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

This parameter is characterized, but not 100% production tested.

The current measurement full-scale range maximum value is 3.0A. However, the UCS1003-1 cannot report

values above ILIM (if IBUS_R2MIN  ILIM) or above IBUS_R2MIN (if IBUS_R2MIN > ILIM and ILIM 1.68A).

The Min and Max values represent the boundaries of a programmable range for UCS1003-1 only. Each value

in the range is typical.

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