AL1663/AL1663R

Document number: DS38466 Rev. 2 - 2

5 of 15

www.diodes.com

March 2017

© Diodes Incorporated

AL1663/AL1663R

Symbol

Parameter

Condition

Min

Typ

Max

Unit

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.