ia2505 integration, ia2505 Datasheet - Page 4

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

Electrical Characteristics
Test conditions T
The • denotes specifications which apply over the full operating temperature range.
Note 5. Dropout voltage is defined as the LED pin voltage at which the LED current is 80% of the LED nominal current at VCC = 5V
Parameters
VCC
Supply Current
EN (ENABLE)
Enable Threshold
Enable Input Current
Turn-on Time
Turn-off Time
LED CURRENT
Sink Current
Channel Current Matching
Dropout Voltage (Note 5)
LED Leakage Current
ISET
Iset Voltage
Leakage Current
LED Current Set Factor, α
OTHER
Thermal Shutdown
Thermal Shutdown Hysteresis
A
= 25 ºC, VCC = +5V, unless otherwise noted.
EN = 0V
EN ≥ 4.5V(No Load) with Rset = open
Logic Low
Logic High
Rset = 60KΩ
Rset = 15KΩ
Rset = 60KΩ, LED Pins Voltage = 1V
Rset = 15KΩ, LED Pins Voltage = 1V
Rset = 60KΩ
LED Pins Voltage = 3.0V
Rset = 60KΩ, VCC = 5V
Iset Voltage = 1.2V
Rset = 60KΩ, α = I
Condition
led
* Rset
•
•
•
•
•
•
•
•
•
0.9VCC
1.12
Min
900
15
70
-1
-1
-1
1200
0.01
0.01
0.01
1.20
0.01
Typ
600
160
40
10
20
80
10
30
10
5
1500
Max
1.32
0.8
55
25
90
50
1
1
1
1
Units
µsec
µsec
IA2505
mA
mA
mV
µA
µA
µA
µA
µA
°C
°C
%
%
V
V
V
4