ZLED7x30 Datasheet

7

April 20, 2016

0

100

200

300

400

500

600

5

10

15

20

25

30

35

40

Vin(V)

Rs=0.10Ω

0.6

0.65

0.7

0.75

0.8

0.85

0.9

0.95

1

5

10

15

20

25

30

35

40

Vin(V)

1LED

3LED

7LED

10LED

No.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

1.3.17

Recommended output

switch duty cycle range

at fLXmax

DLX

0.3

0.9

1.3.18

Propagation delay of

internal comparator

tPD

25

ns

1.3.19

Thermal shutdown

temperature

TSD

150

°C

1.3.20

Thermal shutdown

hysteresis

TSD-HYS

20

K

1.4

Typical Operation Graphs

The curves are valid for the typical application circuit and Tamb = 25°C unless otherwise noted.

Figure 1.1

ZLED7x30 Supply Operating Current vs. Input Supply Voltage (VIN = 8.5 to 40V)

Figure 1.2

Efficiency (%) vs. Input Supply Voltage (VIN = 8.5 to 40V)

† Per Number of LEDs (Rs=0.10

Ω, L1=47μH)

† Minimum Vin depends on number of LEDs.