ia2505 integration, ia2505 Datasheet - Page 2

• Manufacturer Part Number: ia2505
• Description: Ia2505 Four Channel Led Current Source For Flash And Backlighting
• Manufacturer: integration

PACKAGE PIN DEFINITIONS
Pin Number
5-8
1
2
3
4
Pin Name
LED1-4
ISET
GND
VCC
EN
Pin Function
Battery input to run the IC and power the LED. Bypass with a 1µF ceramic capacitor to
GND
Enable pin. Driving this pin to logic high or connecting to VCC enables the device.
Driving this pin to logic low shuts down the device. Dimming can be achieved by driving
EN with a PWM signal
A resistor to ground sets the output current.
Ground.
LED Cathodes. Connect these pins to the cathodes of the LEDs. Any number of these
pins may be tied together for higher current.
ISET
VCC
GND
EN
3x3 DFN PIN ASSIGNMENT
1
2
3
4
8
7
6
5
LED1
LED3
LED2
LED4
IA2505
2