AP65402
Document number: DS37107 Rev. 1 - 2
4 of 15
www.diodes.com
April 2014
© Diodes Incorporated
P65402
Electrical Characteristics (@T
A
= +25°C, V
IN
= 12V, unless otherwise specified.)
Symbol Parameter Test Conditions Min Typ Max Unit
I
SHDN
Shutdown Supply Current
V
EN
= 0V
—
0.3 3.0 µA
I
Q
Supply Current (Quiescent)
V
EN
= 2.0V, V
FB
= 1.0V
—
0.3 1.5 mA
R
DS(ON)1
High-Side Switch On-Resistance (Note 8) —
—
80
—
m
R
DS(ON)2
Low-Side Switch On-Resistance (Note 8) —
—
32
—
m
I
LIMIT
HS Current Limit Minimum duty cycle
—
7
—
A
I
LIMIT
LS Current Limit From Drain to Source
—
0.9
—
A
— High-Side Switch Leakage Current
V
EN
= 0V, V
SW
= 0V, V
SW
=12V
—
0 10 A
AVEA
Error Amplifier Voltage Gain
(Note8)
— — 800 — V/V
GEA Error Amplifier Transconductance
I
C
= ±10µA
— 1000 — µA/V
GCS
COMP to Current Sense
Transconductance
— — 2.8 — A/V
F
SW
Oscillator Frequency
V
FB
= 0.75V
440 500 560 kHz
F
FB
Fold-back Frequency
V
FB
= 0V
—
0.30
—
f
SW
D
MAX
Maximum Duty Cycle
V
FB
= 800mV
—
90
—
%
T
ON
Minimum On Time —
—
160
—
ns
V
FB
Feedback Voltage
T
A
= -40°C to +85°C
—
800
—
mV
— Feedback Overvoltage Threshold — — 1.0 — V
V
EN_RISING
EN Rising Threshold — 0.7 0.8 1.2 V
— EN Lockout Threshold Voltage — 2.2 2.5 2.7 V
— EN Lockout Hysteresis — — 220 — mV
INUV
VTH
V
IN
Under Voltage Threshold Rising
— 3.80 4.05 4.40 V
INUV
HYS
V
IN
Under Voltage Threshold Hysteresis
—
—
250
—
mV
—
Soft-Start Current
V
SS
= 0V
—
6
—
A
—
Soft-Start Period
C
SS
= 0.1µF
—
13
—
ms
T
SD
Thermal Shutdown (Note 8) —
—
160
—
°C
Note: 8. Guaranteed by design
