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PDF APL3516 Data sheet ( Hoja de datos )
| Número de pieza | APL3516 | |
| Descripción | Power-Distribution Switches | |
| Fabricantes | ANPEC | |
| Logotipo |  |
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APL3516
Power-Distribution Switches
Features
General Description
• 40mΩ (3.3V Input) High Side MOSFET
• Current-Limit and Short Circuit Protections
• Over-Temperature Protection
• Under-Voltage Lockout Protection
• Reverse Current Blocking when Disabled
• Deglitched Fault Indication Output
• Internal Soft-Start Control
• Output Discharge when Disabled
• Logic Level Enable Input
• UL Approved-File No. E328191
• Nemko IEC 60950-1:2005 (2nd Edition) and EN
60950-1:2006 CB_Scheme Certified, No.62494
• TUV IEC 60950-1:2005 + A1:2009 and EN 60950-1:
2006 + A11:2009 + A1:2010 Certified, No.44 780 11
393869
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
The APL3516A/B/C/D series are 40mΩ (3.3V input) high
side load switches with an EN logic input and an OCB
fault indication output.
The protection features include current-limit protection,
short circuit protection, and over-temperature protection.
The device limits the output current at current-limit thresh-
old level. When VOUT drops below 1.5V, the devices limit
the current to a lower and safe level. The OTP limits the
junction temperature below 140oC in case of short circuit
or over load conditions.
Pin Configuration
GND 1
VIN 2
VIN 3
EN 4
APL3516A/C
SOP-8
Top View
8 VOUT
7 VOUT
6 VOUT
5 OCB
• Display Ports
• Notebook and Desktop Computers
• High-Side Power Protection Switches
• Short-Circuit Protections
• Heavy Capacitive Loads Protections
GND 1
VIN 2
VIN 3
ENB 4
APL3516B/D
8 VOUT
7 VOUT
6 VOUT
5 OCB
Simplified Application Circuit
SOP-8
Top View
2.9~3.7V
Controller
VIN VOUT
APL3516
A/B/C/D
OCB
EN/ENB
GND
Load
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. A.6 - Jun., 2011
1
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
1 page  
APL3516
Typical Operating Characteristics
Supply Current vs. Input Voltage
80
RLOAD = Open,
75 CIN =COUT =1µF/X7R, TA=25oC
70
65
60
55
50
45
2.5
2.9 3.3 3.7
Input Voltage (V)
4.1
Output Leakage Current vs.
Junction Temperature
VIN=3.3V, Output Short to GND,
Shut Down mode
CIN =COUT =1µF/X7R
-50 0
50 100 150
Junction Temperature (oC)
Switch Off Supply Current vs.
Junction Temperature
VIN=3.3V, RLOAD = Open,
CIN =COUT =1µF/X7R
-50 0
50 100 150
Junction Temperature (oC)
Copyright © ANPEC Electronics Corp.
Rev. A.6 - Jun., 2011
5
Supply Current vs. Junction Temperature
VIN=3.3V, RLOAD =Open,
CIN =COUT =1µF/X7R
-50 0
50 100 150
Junction Temperature (oC)
1200
1000
Turn-On Rising Time vs. Junction
Temperature
VIN=3.3V
800
600
400
200
0
-50 0
50 100 150
Junction Temperature (oC)
Over Current Protection
Characteristics
4.0
VIN=3.3V, TA =25oC
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0 0 0.2 0.4 0.6 0.8 1.0
Output Current (A)
1.2
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
5 Page 
APL3516
Function Description
VIN Under-Voltage Lockout (UVLO)
The APL3516A/B/C/D series of power switches are built-
in an under-voltage lockout circuit to keep the output shut-
ting off until internal circuitry is operating properly. The
UVLO circuit has hysteresis and a de-glitch feature so
that it will typically ignore undershoot transients on the
input. When input voltage exceeds the UVLO threshold,
the output voltage starts a soft-start to reduce the inrush
current.
Power Switch
The power switch is an N-channel MOSFET with a low
R . The internal power MOSFET does not have the
DS(ON)
body diode. When IC is off, the MOSFET prevents a cur-
rent flowing from the VOUT back to VIN and VIN to VOUT.
Current-Limit Protection
The APL3516A/B/C/D series of power switches provide
the current-limit protection function. During current-limit,
the devices limit output current at current limit threshold.
For reliable operation, the device should not be operated
in current limit for extended period.
Enable/Disable
Pull the ENB above 2V or EN below 0.8V to disable the
device, and pull ENB pin below 0.8V or EN above 2V to
enable the device. When the IC is disabled, the supply
current is reduced to less than 1µA. The enable input is
compatible with both TTL and CMOS logic levels. The
EN/ENB pins cannot be left floating.
Over-Temperature Protection
When the junction temperature exceeds 140oC, the inter-
nal thermal sense circuit turns off the power FET and
allows the device to cool down. When the device’s junc-
tion temperature cools by 20oC, the internal thermal
sense circuit will enable the device, resulting in a pulsed
output during continuous thermal protection. Thermal
protection is designed to protect the IC in the event of
over temperature conditions. For normal operation, the
junction temperature cannot exceed TJ=+125oC.
Short-Circuit Protection
When the output voltage drops below 1.5V, which is
caused by the over load or short circuit, the devices limit
the output current down to a safe level. The short circuit
current limit is used to reduce the power dissipation dur-
ing short circuit condition. If the junction temperature is
over the thermal shutdown temperature, the device will
enter the thermal shutdown.
OCB Output
The APL3516A/B/C/D series of power switches provide
an open-drain output to indicate that a fault has occurred.
When any of current-limit or over-temperature protection
occurs for a deglitch time of t , the OCB goes low.
D(OCB)
Since the OCB pin is an open-drain output, connecting a
resistor to a pull high voltage is necessary.
Copyright © ANPEC Electronics Corp.
Rev. A.6 - Jun., 2011
11
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet APL3516.PDF ] | |
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