Diodes AP3608E - Manual (Page 6)

EIGHT-CHANNEL CONSTANT CURRENT SINK WITH CURRENT MATCH AP3608E
Data Sheet
6
Mar. 2011 Rev. 1. 5 BCD Semiconductor Manufacturing Limited
Parameter Symbol Min Max Unit
Input Voltage
V
CC 4.2 5.5 V
Recommended PWM Dimming Frequency f
PWM
0.1 25 kHz
Full Scale Setting Current per Channel V
CHX
≥0.5V
I
CHX
10 25
mA
V
CHX
≥1V 10 65
V
CHX
≥1.5V 10 110
Operating Temperature Range T
A
-40 85 o C
Recommended Operating Conditions
Electrical Characteristics
Parameter Symbol Conditions Min Typ Max Unit
Input Section
Input Voltage V
IN
4.2 5.5 V
Quiescent Current I
Q
No load 0.5 1 mA
Shutdown Quiescent Current I
SDB
V
EN
=0V 0.1 1 µA
Under Voltage Lockout Threshold V
UVLO
Falling Edge 3.6 3.8 4.0 V
Under Voltage Lockout Hysteresis V
HUVLO
200 mV
Current Sink Section
ISET Reference Voltage V
ISET
1.170 1.194 1.218 V
Current Multiplication Ratio K I
CHX
/I
SET
370 400 430
Maximum Output Current per Channel I
CHX_MAX
V
CHX
=0.5V 23 45
mA V
CHX
=1V 65 70
V
CHX
=1.5V 110 120
Current Matching between Any Two Channels I
CH-MATCH
I
CHX
=60mA
V
CHX
=1V
-1.5 1.5 %
Current Sink Saturation Voltage per Channel V
CHX_SAT
I
CHX
=20mA 0.45
V I
CHX
=60mA 0.8
I
CHX
=100mA 1.2
Output Current Line Regulation V
CC
=4.2V to 5.5V 2 %/V
Output Current Load Regulation V
CHX
=0.5V to 2.8V 4 %
Limits in standard typeface are guaranteed for V
IN
=V
EN
=5V, R
ISET
=8k Ω ,, T
A
=25 o
C, unless otherwise specified.