Diodes AP2014/A - Manual (Page 8)

AP2014/A
SYNCHRONOUS PWM CONTROLLER
AP2014/A Rev. 5 8 of 14 FEBRUARY 2009
www.diodes.com © Diodes Incorporated
Absolute Maximum Ratings
Symbol Parameter Rating Unit
V
CC
V
CC
Supply Voltage 20 V
Vc Vc Supply Voltage (not rated for inductive load) 32 V
T
ST
Storage Temperature Range -65 to +150 o C
T
OP
Operating Junction Temperature Range 0 to +125 o C
θ
JC
Thermal Resistance Junction to Case 7 o C/W
θ
JA
Thermal Resistance Junction to Ambient 160 o C/W
Notes: 3. Test conditions for SOP-8L: Device mounted on 2oz copper, minimum recommended pad layout, FR-4 PCB.
Electrical Characteristics
Unless otherwise specified, these specifications apply over V
CC
=5V, V
C
=12V and T
A
=0 to 70°C. Typical values refer to T
A
=25°C. Low
duty cycle pulse testing is used which keeps junction and case temperatures equal to the ambient temperature.
Symbol Parameter Conditions Min. Typ. Max. Unit
Reference Voltage
V
FB
FB Voltage
AP2014 1.225 1.25 1.275
V
AP2014A 0.784 0.800 0.816
L
REG
FB Voltage Line Regulation 5 < Vcc < 12 - 0.2 0.35 %
UVLO
UVLO V
CC
UVLO Threshold - V
CC Supply Ramping Up
4.0 4.2 4.4 V
UVLO Hysteresis - V
CC
- 0.25 - V
UVLO V
C
UVLO Threshold - V
C Supply Ramping Up
3.1 3.3 3.5 V
UVLO Hysteresis - V
C
- 0.2 - V
UVLO FB
UVLO Threshold - FB
FB Ramping Down
(AP2014)
0.4 0.6 0.8 V
FB Ramping Down
(AP2014A)
0.3 0.4 0.5 V
UVLO Hysteresis - FB - 0.1 - V
Supply Current
Operation I
CC
V
CC
Operation Supply Current
Freq=200KHz,
C
L
=1500pF
- 7 10 mA
Operation I
C
V
C
Operation Supply Current
Freq=200KHz,
C
L
=1500pF
- 7 10 mA
I
CCQ
V
CC
Static Supply Current SS=0V - 3.3 6 mA
I
CQ
V
C
Static Supply Current SS=0V - 1 4.5 mA
Soft-Start Section
SS
IB
Charge Current SS=0V 10 20 30 μA
Error Amp
I
FB1
FB Voltage Input Bias Current SS=3V, FB=1V - -0.1 - μA
I
FB2
FB Voltage Input Bias Current SS=0V, FB=1V - -64 - μA
gm Transconductance 450 600 750 μmho
Oscillator
Freq Frequency
AP2014 170 200 230 KHz
AP2014A 340 400 460 KHz
V
RAMP
Ramp-Amplitude Voltage 1.225 1.25 1.275 V
Output Drivers
T
r
Rise Time C
L
=1500pF - 50 100 ns
T
f
Fall Time C
L
=1500pF - 50 100 ns
T
DB
Dead Band Time 50 150 250 ns
T
ON
Max Duty Cycle FB=1V, Freq=200KHz 85 90 95 %
T
OFF
Min Duty Cycle FB=1.5V 0 0 - %