If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

V

-0.3V to 6.0V

SCL, SDIO, VIO pin voltages

-0.3V to (V

w/ 6.0V max

I

-0.3V to

(V

w/ 6.0V max

Continuous Power Dissipation

(Note 3)

Internally Limited

Junction Temperature (T

Storage Temperature Range

Maximum Lead Temperature

(Soldering)

(Note 4)

ESD Rating (Note 5)

Human Body Model - I

Human Body Model - All other

Pins:

1.0kV

2.0kV

Input Voltage Range

2.7V to 5.5V

LED Voltage Range

2.0V to 4.0V

Junction Temperature (T

-30˚C to +100˚C

Ambient Temperature (T

Range(Note 6)

-30˚C to +85˚C

Thermal Properties

Juntion-to-Ambient Thermal

Resistance (

θ

(Note 7)

41.3˚C/W

Limits in standard typeface are for T

less otherwise specified: V

Ω; BankA,

BankB, and DKEY = Fullscale Current; ENA, ENB, ENK Bits = “1”; C1=C2=1.0µF, C

output current(s) and current setting pins (I

Symbol

Parameter

Condition

Min

Typ

Max

Units

I

Dxx

Output Current Regulation

BankA or BankB Enabled

3.0V

≤ V

IN

≤ 5.5V

BankA or BankB Full-Scale

ENA or ENB = "1", ENK = “0”

13.77

(-10%)

15.3

16.83

(+10%)

mA

(%)

3.0V

≤ V

IN

≤ 5.5V

BankA or BankB Half-Scale

ENA or ENB = "1", ENK = “0”

7.5

mA

2.7V

≤ V

IN

≤ 3.0V

BankA or BankB Full-Scale

ENA or ENB = "1", ENK = “0”

15

mA

Output Current Regulation

Keypad Driver Enabled

3.0V

≤ V

IN

≤ 5.5V

DKEY Full-Scale

ENA = ENB = “0”, ENK = “1”

52.8

(-12%)

60

67.2

(+12%)

mA

(%)

Output Current Regulation

BankA and DKEY Enabled

(Note 10)

3.2V

≤ V

IN

≤ 5.5V

R

Ω,R

Ω

V

BankA and DKEY Full-Scale

ENA = ENK = “1”, ENB = “0”

30

DxA

mA

60

DKEY

R

OUT

Open-Loop Charge Pump Output

Resistance

Gain = 3/2

2.75

Ω

Gain = 1

1

V

DxTH

V

Threshold

V

375

mV

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