High-Voltage, 350mA, Adjustable Linear

High-Brightness LED (HB LED) Driver

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3

Note 1: Resistors were added from OUT to CS+ to aid with the power dissipation during testing.

Note 3: Dropout is measured as follows:

Note 5: Current regulation varies with V5 load (see the Typical Operating Characteristics).

Note 6: Thermal shutdown does not function if the output of the 5V reference is shorted to ground.

ELECTRICAL CHARACTERISTICS (continued)

Ω between CS+ and CS-. Connect OUT to

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

THERMAL OVERLOAD

Thermal-Shutdown Temperature

+155

°C

Thermal-Shutdown Hysteresis

23

°C

+5V REGULATOR

Output Voltage Regulation

V5

5.0

5.27

5.5

V

Output Voltage Change

∆V5

15

60

Ω

V5 Short-Circuit Current

V5 = 0V (Note 6)

30

mA

Typical Operating Characteristics

OUTPUT CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

50

100

150

200

250

300

350

400

450

0

-40

125

OUTPUT CURRENT (mA)

320

290

230 260

80 110 140 170 200

50

0.201

0.202

0.203

0.204

0.205

0.206

0.207

0.208

0.209

0.210

0.200

20

350

OUTPUT CURRENT

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

35

30

5

10

15

20

25

50

100

150

200

250

300

350

400

0

040