Diodes AP3591 - Manual (Page 7)

AP3591
Document number: DS36906 Rev. 1 - 2
7 of 18
www.diodes.com
March 2014
© Diodes Incorporated
AP3591
N
E
W
P
R
O
D
U
C
T
A Product Line of
Diodes Incorporated
Electrical Characteristics
(Cont. V
IN
= 12V, V
DD
= V
DDP
= 5V, V
OUT
= 1.05V, T
A
= +25 o C, unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Unit
VOUT AND REFERENCE VOLTAGE
V OUT Output Voltage – 0.75 – 5.5 V
R DISCHARGE Output Discharge Resistance V EN = 0V – 20 – Ω
V FB Feedback Voltage V DD = 4.5V to 5.5V 0.742 0.75 0.758 V
I
FB Feedback Bias Current V
FB
= 0.75V -1 – 1 µA
PROTECTION
I
OC Current Limit Source Current CS to GND 9 10 11 µA
– I
OC
Temperature Coefficient – – 4500 – ppm/ o C
V ILIM_SET
Current Limit Setting Voltage
Range
CS to GND 30 – 200 mV
V
OCL_OFFSET
Over Current Limit Comparator
Offset Voltage
V CS = 60mV,
V
CS-GND
-V
PGND-PHASE
-10 0 10 mV
V
ZC_OFFSET
Zero Crossing Comparator
Offset Voltage
V
PHASE
to GND, V
EN
=
5V
-10 0 10 mV
V
UCL_OFFSET
Negative Over Current Limit
Comparator Offset Voltage
EN floating, V
CS
= 60mV,
V CS-GND -V PHASE-PGND
-10 0 10 mV
V
FBOV
/V
FB
Feedback Over Voltage
Threshold
– 120 125 130 %
t
FBOV_D
Feedback Over Voltage Delay
Time
– – 33 – µs
V
FBUV
/V
FB
Feedback Under Voltage
Threshold
– 65 70 75 %
t FBUV_D
Feedback Under Voltage
Protection Delay Time
– – 28 – µs
t
FBUV_EN_D
Feedback Under Voltage
Protection Enable Delay Time
– 1.3 2 3.1 ms
V UVLO
V
DD
Under Voltage Lock
Threshold
V DD Rising 3.7 3.9 4.1 V
V
HYS
V
DD
Under Voltage Lock
Hysteresis
– – 300 – mV
T OTSD Thermal Shutdown – – +160 – o C
T HYS Thermal Shutdown Hysteresis – – +20 – o C
LOGIC THRESHOLD
V
ENH
EN Control Logic Input Voltage
Setting DEM mode 2.4 2.65 2.9 V
V
ENH-HYS Hysteresis – 25 – mV
V
EN_FT Setting PWM-only mode 1.9 1.96 2 V
V
ENL
Shutdown Threshold 0.8 1.24 1.6 V
V
ENL-HYS
Hysteresis – 65 – mV
I
EN_PH
EN Pull_up Current V
EN
= 0V – 1 – µA