Datasheet AL3644 (Diodes) - 3
| Manufacturer | Diodes |
| Description | Dual 1.5A Current Source Camera Flash LED Driver |
| Pages / Page | 23 / 3 — AL3644. Functional Block Diagram. C U. O R P. www.diodes.com |
| File Format / Size | PDF / 805 Kb |
| Document Language | English |
AL3644. Functional Block Diagram. C U. O R P. www.diodes.com
Model Line for this Datasheet
Text Version of Document
AL3644 Functional Block Diagram
SW B1 Over Voltage Comparator 2/4 MHz - IN VREF Oscillator + A2 VOVP
86mW C1
T
Input Voltage OUT UVLO Flash Monitor
C U
LED1 LED2
D
- + PWM - + Control
O R P
65mW Thermal
W
Shutdown
E
INTC +150°C C3
N
TORCH/ TEMP D3 LED1 + - Error - + Amplifier + FB SELECT D1 - LED2 OUT-VHR Current NTC V + TRIP Sense/Current + Limit Slope Soft-Start Compensation A3 SDA I2C Control Interface Logic/Registers B3 SCL C2 B2 D2 A1 HWEN STROBE TX GND
AL3644 3 of 23 July 2019 Document number: DS41558 Rev. 1 - 2
www.diodes.com
© Diodes Incorporated
SW B1 Over Voltage Comparator 2/4 MHz - IN VREF Oscillator + A2 VOVP
86mW C1
T
Input Voltage OUT UVLO Flash Monitor
C U
LED1 LED2
D
- + PWM - + Control
O R P
65mW Thermal
W
Shutdown
E
INTC +150°C C3
N
TORCH/ TEMP D3 LED1 + - Error - + Amplifier + FB SELECT D1 - LED2 OUT-VHR Current NTC V + TRIP Sense/Current + Limit Slope Soft-Start Compensation A3 SDA I2C Control Interface Logic/Registers B3 SCL C2 B2 D2 A1 HWEN STROBE TX GND
AL3644 3 of 23 July 2019 Document number: DS41558 Rev. 1 - 2
www.diodes.com
© Diodes Incorporated
