Diodes AP2145/ AP2155 - Manual (Page 2)

AP2145/ AP2155
Document number: DS32031 Rev. 3 - 2
2 of 13
www.diodes.com
March 2013
© Diodes Incorporated
AP2145/ AP2155
Available Options
Part Number Channel
Enable Pin
(EN)
Current Limit
(typ)
Recommended Maximum
Continuous Load Current
AP2145 1 Active Low 0.8A 0.5A
AP2155 1 Active High 0.8A 0.5A
Pin Descriptions
Pin Name
Pin Number
Function
SO-8 MSOP-8EP
EN 1 1 Enable input, active low (AP2145) or active high (AP2155)
FLG 2 2 Over-current and over-temperature fault report; open-drain flag is active low when triggered.
GND 3 3 Ground
NC 4, 5 4, 5 No internal connection
OUT 6, 8 6, 8 Voltage output pin (all OUT pins must be tied together externally)
IN 7 7 Voltage input pin
Exposed Pad — Exposed Pad
Exposed Pad:
It should be externally connected to GND plane and thermal mass for enhanced thermal impedance.
It should not be used as electrical ground conduction path.
Functional Block Diagram
AP2145, AP2155
Thermal
Sense
Driver
FLG
OUT
GND
IN
EN
UVLO
Current
Limit
Current
Sense
Deglitch
Absolute Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Symbol Parameter Ratings Unit
ESD HBM Human Body Model ESD Protection 6 kV
ESD MM Machine Model ESD Protection 400 V
V
IN
Input Voltage 6.5 V
V OUT
Output Voltage V IN +0.3 V
V
EN ,
V
FLG
Enable Voltage 6.5 V
I
LOAD
Maximum Continuous Load Current Internal Limited A
T
J(MAX)
Maximum Junction Temperature 150 °C
T
ST
Storage Temperature Range (Note 4) -65 to +150 °C
Caution: Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling
and transporting these devices
Note: 4. UL Recognized Rating from -30°C to +70°C (Diodes qualified T
ST
from -65°C to +150°C)