Datasheet AL3353 (Diodes) - 4
| Manufacturer | Diodes |
| Description | High Performance Boost LED Controller |
| Pages / Page | 15 / 4 — AL3353. Electrical Characteristics. Symbol. Parameter. Conditions. Min. … |
| File Format / Size | PDF / 368 Kb |
| Document Language | English |
AL3353. Electrical Characteristics. Symbol. Parameter. Conditions. Min. Typ. Max. Unit. Supply Voltage. Under Voltage Lockout. Soft Start
Model Line for this Datasheet
Text Version of Document
AL3353 Electrical Characteristics
(VIN = 12V, VPWM = 5V, @TA = +25°C, unless otherwise specified.) (Note 6)
Symbol Parameter Conditions Min Typ Max Unit Supply Voltage
VIN Input Voltage – 9.0 – 40 V IOP Operating Supply Current VIN = 12V, VPWM = 5V, no load – 2 3 mA ISHDN Shutdown Supply Current PWM low > 50mS, Sleep Mode – 130 180 µA
Under Voltage Lockout T
VUVLO Input UVLO Threshold VIN Rising 7.8 8.3 8.8 V VHYS Input UVLO Hysteresis – – 800 – mV
UC Soft Start
ISS_SLOP Soft Start Slope – – 22 – mV/ms
OD Error Amplifier R
Reference voltage at
P
VFB Feedback Reference Voltage 394 400 406 mV non-inverting input
W
Am Open Loop Voltage Gain – – 70 – dB Gm Transconductance of EA – – 100 – µA/V
NE
ISOURCE Output Source Current – – 30 – µA ISINK Output Sink Current – – 60 – µA
PWM to Analog Dimming Control
– PWM Duty – 0 – 100 % VPWM_H – 2.5 – – V PWM Logic Input for Analog Dimming VPWM_L – – – 1.2 V
Protection Threshold
VOVP_OV Output Over Voltage Threshold Voltage – 1.9 2.0 2.1 V Normal operation – 250 – mV VOVP_UVLO OVP UVLO Threshold Voltage System startup – 150 – mV VCS_OCP Over Current Threshold Voltage Duty = 90% 425 500 575 mV VCS_HIGH CS High Protection Threshold Diode or Inductor short 1.1 1.2 1.3 V VCMP_HIGH COMP High Protection Threshold FB short to GND 2.9 3.2 3.5 V TOTP Over Temperature Threshold – – +160 – °C
Gate Driver
fOSC Oscillator Frequency – 110 120 130 kHz DMAX Max. Duty Cycle – 93 95 97 % VGATE Gate Pin Output Voltage VIN =24V – 13 – V tRISE Rising Time – 40 – ns 1nF load tFALL Falling Time – 20 – ns Note: 6. These parameters, although guaranteed by design, are not 100% tested in production. AL3353 4 of 15 February 2019 Document number: DS41487 Rev. 2 - 2
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© Diodes Incorporated Document Outline Pin Assignments Description Applications Features
(VIN = 12V, VPWM = 5V, @TA = +25°C, unless otherwise specified.) (Note 6)
Symbol Parameter Conditions Min Typ Max Unit Supply Voltage
VIN Input Voltage – 9.0 – 40 V IOP Operating Supply Current VIN = 12V, VPWM = 5V, no load – 2 3 mA ISHDN Shutdown Supply Current PWM low > 50mS, Sleep Mode – 130 180 µA
Under Voltage Lockout T
VUVLO Input UVLO Threshold VIN Rising 7.8 8.3 8.8 V VHYS Input UVLO Hysteresis – – 800 – mV
UC Soft Start
ISS_SLOP Soft Start Slope – – 22 – mV/ms
OD Error Amplifier R
Reference voltage at
P
VFB Feedback Reference Voltage 394 400 406 mV non-inverting input
W
Am Open Loop Voltage Gain – – 70 – dB Gm Transconductance of EA – – 100 – µA/V
NE
ISOURCE Output Source Current – – 30 – µA ISINK Output Sink Current – – 60 – µA
PWM to Analog Dimming Control
– PWM Duty – 0 – 100 % VPWM_H – 2.5 – – V PWM Logic Input for Analog Dimming VPWM_L – – – 1.2 V
Protection Threshold
VOVP_OV Output Over Voltage Threshold Voltage – 1.9 2.0 2.1 V Normal operation – 250 – mV VOVP_UVLO OVP UVLO Threshold Voltage System startup – 150 – mV VCS_OCP Over Current Threshold Voltage Duty = 90% 425 500 575 mV VCS_HIGH CS High Protection Threshold Diode or Inductor short 1.1 1.2 1.3 V VCMP_HIGH COMP High Protection Threshold FB short to GND 2.9 3.2 3.5 V TOTP Over Temperature Threshold – – +160 – °C
Gate Driver
fOSC Oscillator Frequency – 110 120 130 kHz DMAX Max. Duty Cycle – 93 95 97 % VGATE Gate Pin Output Voltage VIN =24V – 13 – V tRISE Rising Time – 40 – ns 1nF load tFALL Falling Time – 20 – ns Note: 6. These parameters, although guaranteed by design, are not 100% tested in production. AL3353 4 of 15 February 2019 Document number: DS41487 Rev. 2 - 2
www.diodes.com
© Diodes Incorporated Document Outline Pin Assignments Description Applications Features
