UCS2113 datasheet(7/62 Pages) MICROCHIP

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DS20005680B-page 7

UCS2113

Auto-Recovery Mode Cycle

Time

tCYCLE

—

Time delay before error

condition check.

Programmable 15-50 ms,

default listed

Auto-Recovery Delay

tTST

—

Portable device attached, VBUS

must be > VTEST after this time.

Programmable 10-25 ms,

default listed

Discharge Time

tDISCHARGE

—

200

—

Amount of time discharge

resistor applied.

Programmable 100-400 ms,

default listed

Port Power Switch Operation With Trip Mode Current Limiting

Region 2 Current

Keep-Out

IBUS_R2MIN_1

——

0.1

Note 2

Minimum VBUS

Allowed at Output

VBUS_MIN_1

2.0

—

Note 2

Port Power Switch Operation With Constant Current Limiting (Variable Slope)

Region 2 Current

Keep-Out

IBUS_R2MIN

—

2.13

Note 2

Minimum VBUS

Allowed at Output

VBUS_MIN

2.0

—

Note 2

Current Measurement - DC

Current Measurement Range

IBUS_M

—

3400

Range (Note 2 and Note 3)

Reported Current

Measurement Resolution

IBUS_M

—

13.3

—

1 LSB

Current Measurement

Accuracy

—

±2

—

200 mA < IBUS < ILIM

—±2

—

LSB

IBUS < 200 mA

Current Measurement - AC

Sampling Rate

—

1.1

—

Note 2

Conversion Time

Both Channels

tCONV

—

2.2

—

All registers updated in digital

(Note 2)

Charge Rationing - DC

Accumulated Current

Measurement Accuracy

——

±4.5

—

Charge Rationing - AC

Current Measurement

Update Time

tPCYCLE

—1

—

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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