© 2006 Semtech Corp.

POWER MANAGEMENT

SC614

United States Patent No. 6,504,422

www.semtech.com

4

Electrical Characteristics (Cont.)

r

e

t

e

m

a

r

a

Pl

o

b

m

y

Ss

n

o

i

t

i

d

n

o

Cn

i

Mp

y

Tx

a

Ms

t

i

n

U

s

n

o

i

t

a

c

i

f

i

c

e

p

S

s

u

B

e

c

a

f

r

e

t

n

I

C

e

g

a

tl

o

V

t

u

p

n

I

l

a

ti

g

i

DV

L

I

-

B

L

C

S

d

n

a

A

D

S4

.

0V

V

H

I

-

B

L

C

S

d

n

a

A

D

S6

.

1

e

g

d

e

l

w

o

n

k

c

A

A

D

S

e

g

a

tl

o

V

t

u

p

t

u

O

V

L

O

V

N

I

I

,

V

3

=

)

A

D

S

(

N

I

-

B

A

m

3

=4

.

0V

t

n

e

r

r

u

C

t

u

p

n

I

l

a

ti

g

i

DI

N

I

-

B

2

.

0

-2

.

0A

μ

e

c

n

a

ti

c

a

p

a

C

n

i

P

O

/IC

N

I

0

1F

p

s

n

o

i

t

a

c

i

f

i

c

e

p

S

g

n

i

m

i

T

C

y

c

n

e

u

q

e

r

F

k

c

o

l

Cf

L

C

S

0

0

40

4

4z

H

k

d

o

ir

e

P

w

o

L

L

C

S

)

2

(

t

W

O

L

3

.

1s

μ

d

o

ir

e

P

h

g

i

H

L

C

S

)

2

(

t

H

G

I

H

6

.

0s

μ

e

m

i

T

d

l

o

H

a

t

a

D

)

2

(

t

T

A

D

;

D

H

0s

μ

e

m

i

T

p

u

t

e

S

a

t

a

D

)

2

(

t

T

A

D

;

U

S

0

0

1s

n

e

m

i

T

p

u

-

t

r

a

t

S

e

c

a

f

r

e

t

n

I

)

2

(

t

N

E

h

g

i

h

d

e

ll

u

p

s

i

N

E

r

e

tf

a

e

m

it

p

u

-

t

r

a

t

s

s

u

B0

5

3s

μ

d

e

t

a

e

p

e

R

r

o

f

e

m

i

T

p

u

t

e

S

n

o

it

i

d

n

o

C

t

r

a

t

S

)

2

(

t

A

T

S

;

U

S

6

.

0s

μ

d

e

t

a

e

p

e

R

r

o

f

e

m

i

T

d

l

o

H

n

o

it

i

d

n

o

C

t

r

a

t

S

)

2

(

t

A

T

S

;

D

H

6

.

0s

μ

p

o

t

S

r

o

f

e

m

i

T

p

u

t

e

S

n

o

it

i

d

n

o

C

)

2

(

t

O

T

S

;

U

S

6

.

0s

μ

n

e

e

w

t

e

B

e

m

i

T

e

e

r

F

s

u

B

T

R

A

T

S

d

n

a

P

O

T

S

)

2

(

t

F

U

B

3

.

1s

μ

n

o

i

t

c

e

t

o

r

P

t

l

u

a

F

ti

u

c

r

i

C

t

r

o

h

S

t

u

p

t

u

O

ti

m

i

L

t

n

e

r

r

u

C

I

)

C

S

(

T

U

O

V

T

U

O

D

N

G

=0

0

3A

m

e

r

u

t

a

r

e

p

m

e

T

r

e

v

O

)

4

(

T

P

T

O

)

C

°

0

1

=

s

i

s

e

r

e

t

s

y

h

(

d

l

o

h

s

e

r

h

t

g

n

i

s

i

R0

6

1C

°

e

g

a

tl

o

V

r

e

v

O

t

u

p

t

u

OV

P

V

O

7

.

5V

Notes:

(1) LED matching applies to current sinks set to the same current only. Matching is calculated as follows:

(

)

()

%

100

I

I

I

I

I

MIN

MAX

MIN

MAX

LED

LED

•

+

−

±

=

−

(2) Guaranteed by design.

(3) The total quiescent current in Sleep Mode will increase when serial bus activity occurs, and with the clock frequency of that bus activity.

(4) When the junction temperature exceeds the Over Temperature (OT) threshold, the device will enter Sleep Mode with the contents of all registers retained.

The device will exit Sleep Mode and re-commence normal operation as soon as the junction temperature drops by more than the OT hysteresis.