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