Owner's manual

LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER AP1680
5
BCD Semiconductor Manufacturing LimitedApr. 2011 Rev. 1. 0
Preliminary Datasheet
Parameter Symbol Conditions Min Typ Max Unit
UVLO SECTION
Start-up Threshold
V
TH (ST)
16 18.5 21 V
Minimal Operating Voltage V
OPR
(min) 7.2 9 10.2 V
STANDBY CURRENT SECTION
Start-up Current
I
ST
V
CC
=V
TH (ST)
-0.5V,
Before start-up
0.6 µA
Operating Current I
CC(OPR)
Static 200 320 µA
DRIVE OUTPUT SECTION
OUT Maximum Current
Sink
I
OUT
50
mA
Source 24 30 36
CURRENT SENSE SECTION
Current Sense Threshold
V
CS
455 510 545 mV
Equivalent Current Sense Voltage Accuracy Note 2 3 %
Pre-Current Sense
V
CS(PRE)
365 410 455 mV
Leading Edge Blanking 750 ns
FEEDBACK INPUT SECTION
Feedback Pin Input Leakage Current
I
FB
V
FB
=4V
2.0 2.5 3.1 µA
Feedback Threshold
V
FB
3.59 3.83 4.07 V
(V
CC
=15V, T
A
=25
o
C, unless otherwise specified.)
Electrical Characteristics
Note 2: The output current is given by I
OUT
= .
x
eqVcs,
eqVcs,
∆
Ns
Np
x
Rcs
eqVcs,