ia2521 integration, ia2521 Datasheet - Page 2

• Manufacturer Part Number: ia2521
• Description: Ia2521 Camera Flash Led Driver
• Manufacturer: integration

PACKAGE PIN DEFINITIONS
Pin Number
(MSOP-8)
2, 7
1
3
4
5
6
8
Pin Number
1-2, 11-12
(QFN)
13-15
9, 10
3, 4
16
5
8
Pin Name
ENABLE
ITORCH
IFLASH
GND
VCC
LED
LX
Pin Function
Enable. Pulling this pin high turns on the IC.
Switch Node. Connections to internal power MOSFETs. Attach to inductor.
VCC. Battery input to run the IC and power the LED.
Flash-Mode Current Set. A resistor to ground sets the additional output current. Pulling
this pin high, or open, turns off the additional current.
Torch-Mode Current Set. A resistor to ground sets the output current.
LED Anode. Output power. Connect this pin to the anode of the LED, along with a
capacitor.
Ground.
VCC
VCC
LX1
LX1
ENABLE
IFLASH NC NC ITORCH
1
2
3
4
16
5
GND
15
6
14
GND
7
13
8
GND
12
11
10
9
LED
LED
LX2
LX2
IA2521
QFN16 3x3
MSOP-8
2