Owner's manual

BOOST CONTROLLER AP3039
Data Sheet
7
BCD Semiconductor Manufacturing LimitedJun. 2010 Rev. 1. 6
Parameter Symbol Conditions Min Typ Max Unit
Input Voltage V
IN
V
CC
=V
IN
56
V
V
CC
bypassed to GND
through a 0.47µF capacitor
627
Feedback Voltage
V
FB
490 500 510 mV
FB Pin Bias Current I
FB
35 100 nA
Quiescent Current I
Q
No switching 3 5 mA
Shutdown Quiescent Current I
SHDN
V
EN
=0V 1 2 µA
VCC Voltage
V
CC
9V≤V
IN
≤27V 5.566.5
V
6V≤V
IN
<9V 5
VCC Current Limit I
CC-LIM
50 mA
Drop Voltage Across Bypass Switch
V
IN
-V
CC
I
CC
=0mA, f
OSC
≤200kHz,
6V≤V
IN
<8.5V
300 mV
Bypass Switch Turn-off Threshold
V
BYP-HI
V
IN
increasing
8.7 V
Bypass Switch Threshold Hysteresis
V
BYP-HYS
V
IN
decreasing
260 mV
VCC Pin UVLO Rising Threshold
V
CC-HI
4.7 V
VCC Pin UVLO Falling Hysteresis
V
CC-HYS
300 mV
Oscillator Frequency
f
OSC
Adjustable, R
T
=51kΩ
to 470kΩ
150 1000 kHz
UVLO Threshold V
UVLO
1.22 1.25 1.28 V
UVLO Hysteresis Current Source I
HYS
22 µA
Current Limit Threshold Voltage V
CS
90 110 130 mV
RT Voltage V
RT
1.20 1.25 1.30 V
Error Amplifier Transconductance G
S
470 µA/V
EN Pin Threshold Voltage
V
EH
2.0
V
V
EL
0.5
SHDN Pin Threshold Voltage
V
IH
2.0
V
V
IL
0.5
Electrical Characteristics
(V
IN
=12V, V
EN
=V
IN
, T
A
=25
o
C, unless otherwise specified.)