AL1663/AL1663R

Document number: DS38466 Rev. 1 - 2

5 of 15

www.diodes.com

May 2016

© Diodes Incorporated

AL1663/AL1663R

Symbol

Parameter

Conditions

Min

Typ

Max

Units

UVLO Section

Startup Threshold Voltage

–

17

18.5

20

V

Minimal Operating Voltage

After Turn On

7

7.8

8.5

V

VCC OVP Voltage

–

25

27

29.9

V

Standby Current Section

Startup Current

up

–

0.8

–

µA

Operating Current

100pF

–

1

–

mA

Shunt Current in OVP Mode

–

5

–

mA

Drive Output Section

Output Voltage Rise Time (Note 6)

–

90

–

ns

Output Voltage Fall Time (Note 6)

–

30

–

ns

Output Clamp Voltage

13

14

15

V

Minimum On Time (Note 6)

–

–

400

–

ns

Maximum On Time

–

–

22

–

µs

Maximum Off Time

–

–

35

–

µs

Minimum Off Time

–

–

2

–

µs

Maximum Frequency

–

–

150

–

KHz

Internal CS reference

Internal Reference Voltage

–

0.291

0.3

0.309

V

Primary Current Clamp Voltage

–

–

1.2

–

V

Error Amplifier

Gm

Trans-Conductance

–

–

16.7

–

µA/V

Amplifier Source Current

–

–

10

–

µA

Feedback Input Section

FB CV Threshold

–

1.4

1.5

1.6

V

APWM Section

PWM Signal Low Threshold Voltage

–

–

–

0.3

V

PWM Signal High Threshold Voltage

–

2.4

–

–

V

–

Linear Dimming Range on APWM

–

0.3

–

2.4

V

PWMD Section

PWM Signal Low Threshold Voltage

–

–

–

0.4

V

PWM Signal High Threshold Voltage

–

2

–

–

V

Thermal Fold-back Section

Overheating Temperature Regulation

(Note 6)

–

–

+145

–

Over Temperature Protection Section

–

Shutdown Temperature (Notes 6, 7)

–

–

+165

–

Notes:

6. These parameters, although guaranteed by design, are not 100% tested in production.

7. The

device will latch when OTP happens and the device won’t operate constantly at this temperature.