LP8727 datasheet(6/33 Pages) TI1

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LP8727

SNVS898A – OCTOBER 2012 – REVISED MAY 2013

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Electrical Characteristics

(1)(2) (continued)

Limits in standard typeface are for TJ = 25°C. Limits in boldface type apply over the operating ambient temperature range

(

−40°C ≤ TJ ≤ +125°C). Unless otherwise noted, specifications apply to the Typical Application Circuit with VVBAT = 3.7V,

VVBUS = 5V.

Symbol

Parameter

Conditions

Typ

Min

Max

Units

LOGIC AND CONTROL OUTPUTS

INT\, IOUT = 2mA

0.4

VOL

Output Low Level

SDA, ISINK = 3mA

0.4

ID DETECTION LDO

IOUT = 500 µA, VOUT = 2.3V

VOUT

Output Voltage Accuracy

-3

IOUT = 500 µA, VOUT = 2.6V

IOUT

Output Current Rating

10 Hz

≤ f ≤ 100 kHz

Output Noise Voltage

µVRMS

COUT = 1µF

(2)

f = 10 kHz, COUT = 1µF

Power Supply Ripple

PSRR

Rejection Ratio

IOUT = 20 mA

(2)

External Output Capacitance

COUT

See(2)

1.0

0.6

µF

for Stability

EXPDET LDO

IOUT = 1mA, VOUT = 4.85V @ VVBUS

VOUT

Output Voltage Accuracy

-5

= 5V

VDO

Dropout Voltage

IOUT = 50 mA @ VVBUS = 5V

330

IOUT(MAX)

Output Current Rating

ISC

Short Circuit Current Limit

VOUT = 0V

330

External Output Capacitance

COUT

See(3)

1.0

0.6

µF

for Stability

(3)

Min and Max limits are specified by design, test or statistical analysis. Typical numbers are not ensured, but do represent the most likely

norm.

Multiplexer Switches Electrical Characteristics

Typical values and limits appearing in normal type apply for TJ=25°C. Unless otherwise noted, VVBAT = 3.7V, VBUS is

disconnected. Limits appearing in boldface type apply over the entire junction temperature range for operation, TJ = −40°C to

+125°C.

(1)

Symbol

Parameter

Conditions

Typ

Min

Max

Units

CP_EN = 0

VCC

VDP,DN

Analog Signal Range

CP_EN = 1

VSWPOS

RSWONUSB

On Resistance

2.5

On Resistance Match

ΔRSWONUSB

0V < VD+ or VD-< 1V

0.5

Ω

Between Channels

RFLATUSB

On Resistance Flatness

0.5

ILEAKUSB(OFF)

Off Leakage Current(2)

−360

360

0V < VD+ or VD-< 3.3V, CP_EN = 1

ILEAKUSB(ON)

On Leakage Current(2)

−360

360

UART ANALOG SWITCHES (U1, U2)

CP_EN = 0

VCC

VU1, U2

Analog Signal Range

CP_EN = 1

VSWPOS

RSWONART

On Resistance

2.5

On Resistance Match

ΔRSWONART

0V < VD+ or VD-< 1V

0.5

Ω

Between Channels

RFLATURT

On Resistance Flatness

0.5

(1)

Junction-to-ambient thermal resistance is highly application and board layout dependent. In applications where high power dissipation

exists, special care must be given to thermal dissipation issues in board design.

(2)

Min and Max limits are specified by design, test or statistical analysis. Typical numbers are not ensured, but do represent the most likely

norm.

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