© 2008 Semtech Corporation

SC811 / SC813

5

Electrical Characteristics (continued)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Thermal Limiting Threshold

Temperature

T

TL

130

°C

Thermal Limiting Rate

i

T

50

mA/ °C

ENB or MODE Input High Voltage

Threshold

V

IH

1.6

V

ENB or MODE Input Mid Voltage Range

V

IM

0.7

1.3

V

ENB or MODE Input Low Voltage

Threshold

V

IL

0.3

V

ENB Input High-range Threshold Input

Current

I

ENB_IH_TH

ENB current required to pull ENB from

floating midrange into high range

23

50

μA

ENB Input High-range Sustain Input

Current

I

ENB_IH_SUS

Current required to hold ENB in

high range, Min V

IH

≤ V

ENB

≤ V

BAT

,

Min V

IH

≤ V

BAT

≤ 4.2V

0.3

1

μA

MODE Input High-range Input Current

I

MODE_IH

V

MODE

= Min V

IH

23

75

μA

ENB or MODE Input Mid-range Load

Limit

I

IM

Input will float to mid range when this

load limit is observed.

-5

5

μA

ENB or MODE Input Low-range Input

Current

I

IL

0V ≤ (V

ENB

or V

MODE

) ≤ Max V

IL

-25

12

μA

MODE Input Monitor State Input

Current

I

MODE_MON

V

MODE

= V

BAT

= 4.2V,

V

ENB

= 1V and Charging Terminated

1μA

ENB or MODE Input Leakage

I

ILEAK

V

VIN

= 0V or V

VIN

= 5V,

V

ENB

and V

MODE

= V

BAT

= 4.2V

1μA

STATB Output Low Voltage

V

STAT_LO

I

STAT_SINK

= 2mA

0.5

V

STATB Output High Current

I

STAT_HI

V

STAT

= 5V

1

μA

Notes:

(1) Sustained operation to VT

ADUVLO-F

≤ V

VIN

is guaranteed only if a current limited charging source applied to VIN is pulled below VT

ADUVLO-R

by the

charging load; forced VIN voltage below VT

ADUVLO-R

may in some cases result in regulation errors or other unexpected behavior.