Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Electrical Characteristics
V
CC
=15V, T
A
=25°C, unless otherwise specified.
Parameter
UVLO Section
Start-up Threshold
Minimal Operating Voltage
Standby Current Section
Start-up Current
Operating Current
Drive Output Section
Output High Level Voltage
Output Low Level Voltage
Output Voltage Rise Time
Output Voltage Fall Time
Output Clamp Voltage
UVLO Saturation Voltage
Maximum Switch On-time
DIM Input Section
Voltage Gain to RI
Internal Source Current
Reload Threshold
RD and RI Section
RD Pin Voltage
Maximum RD Current
Maximum RI Current
Current Sense Section
Current Sense Voltage
Maximum CS Current
Leading Edge Blanking
Symbol
V
TH
(ST)
V
OPR
(Min)
Conditions
Min
16.5
Typ
19
9
Max
21.5
10.8
Unit
V
After turn on
V
CC
=V
TH
(ST)-0.5V,
Before start up
Static
I
GD-SOURCE
=20mA
V
CC
=12V
I
GD-SINK
=20mA
V
CC
=12V
C
L
=1nF
C
L
=1nF
I
GD-SOURCE
=5mA
V
CC
=20V
V
CC
=0 to V
CC–ON
I
SINK
=10mA
7.2
I
ST
I
CC
1.7
700
900
10
1100
µA
V
OH
V
OL
t
R
t
F
V
O-CLAMP
V
UVLO
t
ONP_MAX
8
1
120
30
11
220
50
13
320
90
15
1
16.5
V
V
ns
ns
V
V
µs
∆V
RI
/∆V
DIM
-1.2
11
0.8
-1.1
20
1
-1.0
35
1.25
µA
V
V
RD
1.3
1.5
150
250
1.75
V
µA
µA
V
CS
V
DIM
=0
450
500
120
600
560
mV
µA
ns
Jul. 2011
Rev. 1. 2
6
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
