Rainbow-electronics MAX16800 Bedienungsanleitung PDF herunterladen (Seite 2)

MAX16800

High-Voltage, 350mA, Adjustable Linear

High-Brightness LED (HB LED) Driver

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= +12V, EN = V

, C

= 0.1µF to GND, I

= 0, CS- = GND, connect R

SENSE

= 0.58Ω between CS+ and CS-. Connect OUT to

CS+ (Note 1). T

= -40°C to +125°C, unless otherwise noted. Typical values are at T

= +25°C.) (Note 2)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

IN, OUT, and EN to GND........................................-0.3V to +45V

CS+, V5 to GND .......................................................-0.3V to +6V

CS- to GND............................................................-0.3V to +0.3V

OUT Short Circuited to GND Duration

(at V

= +16V) ........................................................60 minutes

Maximum Current Into Any Pin (except V

and OUT) .......±20mA

Continuous Power Dissipation (T

= +70°C)

16-Pin TQFN 5mm x 5mm

(derate 33.3mW/

C above +70

C)............................2666.7mW

Operating Junction Temperature Range...........-40°C to +125°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Supply Voltage Range V

(Note 1) 6.5

40.0

Ground Current I

LOAD

= 350mA 1.4 3 mA

Shutdown Supply Current I

SHDN

EN ≤ 0.6V 12 40 µA

Guaranteed Output Current I

OUT

SENSE

= 0.55Ω

350

Output Current Accuracy 35mA < I

OUT

< 350mA

±3.5

OUT

= 350mA (current pulsed),

12V < V

< 40V

0.5 1.2 V

Dropout Voltage (Note 3) ∆VDO

OUT

= 350mA (current pulsed),

6.5V < V

< 40V

0.5 1.5 V

Current rising 5.4

Output Current Slew Rate

Current falling 90

mA/µs

Short-Circuit Current V

OUT

= 0V, V

= 12V

400 600 800

LOGIC INPUT

EN Input Current I

100

EN Input Voltage High V

2.8 V

EN Input Voltage Low V

0.6 V

Turn–On Time t

EN rising edge to 90% of OUT

135 350

µs

CURRENT SENSE (Note 4)

Regulated R

SENSE

Voltage V

RSNS

SENSE

= V

CS+

- V

CS-

197 204 211

Input Current (CS+) V

CS+

= 220mV -14 µA

Input Current (CS-) V

CS+

= 220mV

+84

µA

1 2 3 4 5 6 7 8 9

MAX16800 1

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