Data sheet, Electrical characteristics – Diodes AP3605 User Manual
Page 5
5
Jan. 2013 Rev. 1. 8
BCD Semiconductor Manufacturing Limited
4-Channel Charge Pump LED Driver with Current Balancing and Wide Range PWM Dimming AP3605
Data Sheet
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Input Section
Input Voltage
V
IN
I
D
=0 to 40 mA
2.7
5.5
V
Supply Current
I
CC
No Load, ISET floating
1.5
2.5
mA
Shutdown Supply Current
I
SHDN
V
EN
=GND
0.1
1
μA
Charge Pump Section
Switching Frequency
f
OSC
0.65
1
1.35
MHz
Efficiency
η
V
IN
=3.5V, I
D
=40mA Total
93
%
Current Source Section
Maximum Output Current per
Source
I
DX
3.2V
≤V
IN
≤5.5V,
T
A
=-40
o
C to 85
o
C
18
20
22
mA
Current Matching between Any
Two Outputs
I
D-MATCH
-3
3
%
Output Current Line Regulation
(
ΔI
D
/I
D
)/
ΔV
3.5V
≤V
IN
≤5.5V
-2
2
%/V
Current Matching between Any
Two Outputs under Different LED
Forward Voltage
ΔI
D
/I
D
3.0V
≤V
D
≤4.0V, V
IN
=3.5V
-5
5
%
Reference Voltage for Current Set
V
ISET
1.193
1.23
1.267
V
I
D
to I
SET
Current Ratio
K
100
120
140
Enable Section
EN High Level Threshold Voltage
V
IH
1.4
V
EN Low Level Threshold Voltage
V
IL
0.5
V
EN Input Leakage Current
I
EN
V
EN
=5.5V
-1
1
μA
EN Low Threshold Time for
Standby State
t
STB
2
ms
Total Device
Soft-Start Time
t
SS
I
D
=80mA Total
400
μs
Thermal Shutdown
T
OTSD
160
o
C
Thermal Shutdown Hysteresis
T
HYS
20
o
C
Electrical Characteristics
(V
IN
=3.5V, V
EN
=V
IN
, R
ISET
=1.8k
Ω
, C
FLY1
=C
FLY2
=C
IN
=C
OUT
=1
μ
F, T
A
=25
o
C, V
D1
=V
D2
=V
D3
=V
D4
=3.4V,
unless
otherwise specified. )