US12231

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

6 of 15

www.unisonic.com.tw

QW-R502-A82.a



ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

LOGIC SECTION ( SYSRST , SHDNx , STBYx , PERSTx , RCLKENx, OCx , CPUSBx ,

CPPEx )

Logic Input Supply Current

Input

)

SYSRST

(

I

SYSRST =3.6V, sinking

0

1

μA

Input

)

SYSRST

(

I

SYSRST =0V, sourcing

0

1

μA

10

30

Input

)

SHDNx

(

I

SHDNx =3.6V, sinking

0

1

μA

SHDNx =0V, sourcing

10

30

Input

)

STBYx

(

I

STBYx =3.6V, sinking

0

1

μA

STBYx =0V, sourcing

10

30

Input

RCLKENx=0V, sourcing

10

30

μA

Inputs

)

CPUSBx

(

I

Or

)

CPPEx

(

I

CPUSB or CPPE =0V, sinking

0

1

μA

CPUSB or CPPE =3.6V,

sourcing

10

30

Logic Input Voltage

High Level

2

V

Low Level

0.8

RCLEN Output Low Voltage

Output

0.4

V

PERST Assertion Threshold Of Output

Voltage ( PERST Asserted When Any Output

Voltage Falls Below The Threshold)

2.7

3

V

2.7

3

1.2

1.35

PERST Assertion Delay From Output Voltage

)

PERST

(

FD

t

falling

500 ns

PERST De-assertion Delay From Output

Voltage

)

PERST

(

RD

t

rising within tolerance

4

10

20

ms

PERST Assertion Delay From SYSRST

)

PERST

(

FD

t

2

Max time from SYSRST asserted

or de-asserted

500 ns

PERST Minimum Pulse Width

)

PERST

(

W

t

falling out of tolerance or

triggered by SYSRST

100 250

μs

PERST Output Low Voltage

)

PERST

(

OL

V

0.4

V

PERST Output High Voltage

)

PERST

(

OH

V

2.4

V

OC Output Low Voltage

)

OC

(

OL

V

0.4

V

OC Leakage Current

)

OC

(

IKG

I

1

μA

OC Deglitch

)

OC

(

D

t

Falling into or out of an

overcurrent condition

6

20 mS

UNDERVOLTAGE LOCKOUT (UVLO)

2.6

2.9

V

1

1.25

switches are off

2.6

2.9

UVLO Hysteresis

100

mV

Note: Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be

taken into account separately. ELECTRICAL CHARACTERISTICS(Cont.)