LM2793LD datasheet(3/10 Pages) NSC

3 / 10 page

Absolute Maximum Ratings (Notes 1,

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

-0.3V to 6.0V

SD-BRGT

-0.3V to (V

IN +

0.3V) w/ 6.0V max

Continuous Power Dissipation (Note

Internally Limited

Junction Temperature (T

J-MAX-ABS)

150˚C

Storage Temperature Range

-65˚C to 150˚C

Lead Temp. (Soldering, 5 sec.)

260˚C

ESD Rating (Note 5)

Human Body Model

2kV

Machine Model

200V

Operating Ratings (Notes 2, 8)

Input Voltage V

2.7V to 5.5V

SD-BRGT

0V to V

Brightness Adjustment Control

Range of V

SD-BRGT

0.75V to 2.75V

Junction Temperature Range (T

-30˚C to +100˚C

Ambient Temperature Range (T

-30˚C to +85 ˚C

(Note 6)

Thermal Information

Junction-to-Ambient Thermal

Resistance,

LLP-10 Package (

JA) (Note 7)

55˚C/W

Electrical Characteristics

(Notes 2, 8)

Limits in standard typeface are for T

J = 25˚C, and limits in boldface type apply over the full operating junction temprature

range. Unless otherwise specified: C

1=C2=CIN=CHOLD=1µF; VIN=3.6V; VSD-BRGT=3.0V; VDX=3.6V

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Output Current Regulation

3.3V

≤ V

≤ 5.5V

DX = 3.9V

14.7

13.7

15.9

17.2

17.3

3.0V

≤ V

≤ 5.5V

DX = 3.8V

14.7

13.7

15.9

17.2

17.3

2.7V

≤ V

≤ 5.5V

DX = 3.4V

14.7

13.7

15.9

17.2

17.3

2.5V

≤ V

≤ 3.9V

(Note 9)

14.7

13.7

15.9

17.2

17.3

SD-BRGT= 2.0V

SD-BRGT= 0.75V

0.1

D-MATCH

D1-to-ID2 Current Matching

0.3

3.0

OUT

Charge Pump Output

Resistance

IN = 2.7V

3.5

Ω

HR-min

Minimum Current Source

Voltage Headroom (V

POUT -

IDx) (Note 10)

DX = 16mA

400

Quiescent Supply Current

DX,IPOUT = 0

1.2

2.2

Shutdown Supply Current

2.7V

≤ V

≤ 5.5V

SD-BRGT =0V

µA

ON/OFF

SD-BRGT Pin Thresholds

for Active and Shutdown

Modes

Active

IN = 3.0V

0.70

Shutdown

IN = 3.0V

0.25

LEAK-SD

SD-BRGT Pin Leakage

Current

µA

Switching Frequency

2.7V

≤ V

≤ 5.5V

325

500

675

kHz

START

Startup Time

DX = 90% steady state

µs

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of

the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the

Electrical Characteristics tables.

Note 2: All voltages are with respect to the potential at the GND pin.

Note 3: Voltage on the SD-BRGT pin should not exceed 6V.

Note 4: Thermal shutdown circuitry protects the device from permanent damage. D1 and D2 may be shorted to GND without damage.

LM2793LD bảng dữ liệu(PDF) 3 Page - National Semiconductor (TI)

LM2793LD bảng dữ liệu(HTML) 3 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10

bảng dữ liệu tải về

Link URL