Diodes AP3032 - Manual (Page 5)

Data Sheet
WHITE LED STEP-UP CONVERTER AP3032
Dec. 2012 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
5
Electrical Characteristics
V
IN
=V
CTRL
=5.0V, unless otherwise specified. Specification with standard typeface are for T
A
= 25 °C, and those in
boldface type apply over the full operating temperature rang (T
A
=-40 °C to 85°C).
Parameters Symbol Conditions Min Typ Max Unit
SUPPLY VOLTAGE (VIN PIN)
Input Voltage V
IN
2.7 9 V
Quiescent Current I
Q
V
FB
=V
IN,
Not Switching
3.0 4.0 5.0 mA
Shutdown Supply Current I
SHDN
V
CTRL
=0V 50 μA
ENABLE (EN PIN)
CTRL Pin Voltage V
CTRL
1.2 V
CTRL Pin Bias Current I
CTRL
60 μA
OUTPUT VOLTAGE
OVP Voltage V
OVP
27 V
VOLTAGE REFERENCE (FB PIN)
Feedback Voltage V
FB
188 200 212 mV
Feedback Bias Current I
FB
35 100 μA
SWITCHING REGULATOR
Switching Frequency f 0.75 1 1.3 MHz
Maximum Duty Cycle D
MAX
90 93 %
Switch Current Limit I
LIMIT
D=60% 1.2 1.4 A
Switch V
CE
Saturation Voltage V
CE_SAT
I
SW
=1A 300 mV
Switch Leakage Current V
SW
=9V 0.01 5 μA
THERMAL SHUTDOWN
Thermal Shutdown T
OTSD
160 ºC
Thermal Shutdown Hysteresis T
HYS
20 ºC
SOFT START
Soft-start Time t
SS
300 μs
Standby Time t
STANDBY
0.7 ms