AL3353

Note:

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

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply Voltage

Input Voltage

–

9.0

–

40

V

Operating Supply Current

–

2

3

mA

Shutdown Supply Current

PWM low > 50mS, Sleep Mode

–

130

180

µA

Under Voltage Lockout

Input UVLO Threshold

7.8

8.3

8.8

V

Input UVLO Hysteresis

–

–

800

–

mV

Soft Start

Soft Start Slope

–

–

22

–

mV/ms

Error Amplifier

Feedback Reference Voltage

Reference voltage at

non-inverting input

394

400

406

mV

Open Loop Voltage Gain

–

–

70

–

dB

Transconductance of EA

–

–

100

–

µA/V

Output Source Current

–

–

30

–

µA

Output Sink Current

–

–

60

–

µA

PWM to Analog Dimming Control

–

PWM Duty

–

0

–

100

%

PWM Logic Input for Analog Dimming

–

2.5

–

–

V

–

–

–

1.2

V

Protection Threshold

Output Over Voltage Threshold Voltage

–

1.9

2.0

2.1

V

OVP UVLO Threshold Voltage

Normal operation

–

250

–

mV

System startup

–

150

–

mV

Over Current Threshold Voltage

Duty = 90%

425

500

575

mV

CS High Protection Threshold

Diode or Inductor short

1.1

1.2

1.3

V

COMP High Protection Threshold

FB short to GND

2.9

3.2

3.5

V

Over Temperature Threshold

–

–

+160

–

°C

Gate Driver

Oscillator Frequency

–

110

120

130

kHz

Max. Duty Cycle

–

93

95

97

%

Gate Pin Output Voltage

–

13

–

V

Rising Time

1nF load

–

40

–

ns

Falling Time

–

20

–

ns

AL3353

Document number: DS41487 Rev. 2 - 2

4 of 15

www.diodes.com

February 2019

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