AL8806

HIGH EFFICIENCY 30V 1.5A BUCK LED DRIVER

AL8806

Document number: DS35144 Rev. 2 - 2

3 of 15

www.diodes.com

June 2011

© Diodes Incorporated

Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ.

Max

Unit

5.9

V

Internal regulator hysteresis

threshold

100

300

mV

Quiescent current

Output not switching (Note 2)

350

µA

Input supply Current

CTRL pin floating f = 250kHz

1.8

5

mA

Set current Threshold Voltage

95

100

105

mV

Set threshold hysteresis

±20

mV

SET pin input current

16

22

µA

CTRL pin input resistance

Referred to internal reference

50

k

Ω

Internal Reference Voltage

2.5

V

On Resistance of SW MOSFET

0.18

0.35

Ω

Switch leakage current

0.5

μA

θ

JA

Thermal Resistance Junction-to-

Ambient (Note 4)

MSOP-8EP (Note 3)

69

°C/W

Notes:

3. Measured on an FR4 51x51mm PCB with 2oz copper standing in still air. Refer to figure 5 for the device derating curve.

4. Test condition: Device mounted on FR-4 PCB (51mm x 51mm 2oz copper, minimum recommended pad layout on top layer and thermal vias to

bottom layer ground plane. For better thermal performance, larger copper pad for heat-sink is needed