Preliminary datasheet, Low-power off-line psr led controller ap1686, Electrical characteristics – Diodes AP1686 User Manual

Page 5: Parameter symbol conditions min typ max unit

Advertising
background image


Preliminary Datasheet

Low-Power Off-line PSR LED Controller AP1686

Nov. 2012 Rev. 1.1 BCD Semiconductor Manufacturing Limited

5

Electrical Characteristics

V

CC

=15V, T

A

=25°C, unless otherwise specified.

Parameter Symbol

Conditions

Min

Typ

Max

Unit

UVLO SECTION

Startup Threshold

V

TH

(ST)

13

15.5

18

V

Minimal Operating Voltage

V

OPR

(MIN)

3

3.5

4.5

V

STANDBY CURRENT SECTION

Startup Current

I

ST

V

CC

=V

TH

(ST)-1V,

Before startup

0 0.2 0.6

μA

Operating Current

I

CC

(OPR) Static

current

250

400 600

DRIVE OUTPUT SECTION

Output Current

Sink I

SINK

Apply 1V @OUT pin

200

300

500

mA

Source I

SOURCE

24

30

45

mA

CURRENT SENSE SECTION
Current Sense Threshold
Voltage

V

CS

440

500

550

mV

Equivalent Current Sense
Voltage Accuracy (Note 2)

eq

Vcs

eq

Vcs

,

,

Δ

4

%

Leading Edge Blanking

t

LEB

The minimum power
switch turn on time

300 475 720 ns

FEEDBACK INPUT SECTION

Input Resistance of FB Pin

R

FB

V

FB

=4V 1

1.6

2

M

Ω

Feedback Threshold

V

FB

3.7

3.974

4.21

V

LINE COMPENSATION SECTION
Line Compensation
Transconductance (Note 2)

g

m

1.14

1.43

1.72

μS

PROTECTION SECTION

Over Voltage Protection

V

FB

(OVP)

6.5

7.5

8.5

V

Maximum On Time of
Primary Side

tonp

(MAX)

11

18

50

μ

s

Note 2: The output current is given by

Ns

Np

Rcs

eq

Vcs

I

OUT

Ч

=

,









Advertising