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PDF APL3512 Data sheet ( Hoja de datos )
| Número de pieza | APL3512 | |
| Descripción | Power-Distribution Switches | |
| Fabricantes | ANPEC | |
| Logotipo |  |
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APL3512
Power-Distribution Switches with Soft Start
Features
General Description
• 90mΩ High Side MOSFET
• 2A Continuous Current
• Soft-Start Time Programmable by External
Capacitor
• Wide Supply Voltage Range: 2.7V to 5.5V
• Current-Limit and Short-Circuit Protections
• Under-Voltage Lockout Protection
• Reverse Current Blocking when Switch Disabled
• Over-Temperature Protection
• Logic Level Enable Input
APL3512A: Active High
APL3512B: Active Low
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
• TFT LCD Modules
• Notebook and Desktop Computers
• USB Ports
• High-Side Power Protection Switches
The APL3512A/B is a power-distribution switch with some
protection functions that can deliver current up to 2A. The
device incorporates a 90mΩ N-channel MOSFET power
switch that is controlled by an enable logic pin and has a
SS pin dedicated to soft-start ramp-up rate control that
can be used in application where the inrush current is
concerned.
The device integrates some protection features, includ-
ing current-limit protection, short-circuit protection, over-
temperature protection, and UVLO. The current-limit and
short-circuit protection can protect down-stream devices
from catastrophic failure by limiting the output current at
current-limit threshold during over-load or short-circuit
events. When VOUT drops below VIN-1.5V the devices limit
the current to a lower and safe level. The over-tempera-
ture protection function shuts down the N-channel
MOSFET power switch when the junction temperature
rises beyond 140oC and will automatically turns on the
power switch when the temperature drops by 20oC. The
UVLO function keeps the power switch in off state until
there is a valid input voltage present.
The device is available in lead free SOT-23-5, TDFN2x2-
6 and SOP-8 packages with enable active-high(EN) and
active-low(ENB) versions.
Simplified Application Circuit
APL3512A/B
VIN VIN VOUT
VOUT
EN
Control
SS
EN/ ENB
GND
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 - Aug., 2012
1
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
1 page  
APL3512
Typical Operating Characteristics
Switch On Resistance vs. Junction
Temperature
160
140
VIN=3.3V
120
100
80
60 VIN=5V
40
20 IOUT=1.5A, CIN =1µF/X7R,
COUT =10µF/X7R
0
-50 0
50 100
Junction Temperature (oC)
150
Supply Current vs. Junction
Temperature
100
VIN =5V, RLOAD = Open,
CIN =COUT =33µF/
80
60
40 IC Enabled
20 IC Disabled
0
-50
0 50 100
Junction Temperature (oC)
150
Current-Limit Threshold vs.
Junction Temperature
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2 VIN =5V
2.0
-50
0
50 100
Junction Temperature (oC)
150
Copyright © ANPEC Electronics Corp.
Rev. A.6 - Aug., 2012
5
Switch On Resistance vs. Input
Voltage
130
120
110
100
90
80
70
60 IOUT=1.5A, CIN =1µF/X7R,
COUT =1µF/X7R, TA=25oC
50
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Input Voltage (V)
Supply Current vs. Input Voltage
80
70
60
50 IC Enabled
40
30
RLOAD = Open,
CIN =COUT =1µF/X7R
20
10 IC Disabled
00
2.5 3.0
3.5 4.0
4.5 5.0 5.5
Input Voltage (V)
Current-Limit Threshold vs.
Input Voltage
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
TA =25oC
2.0
2.5 3.0 3.5
4.0
4.5
Input Voltage (V)
5.0
5.5
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
5 Page 
APL3512
Typical Application Circuit
VIN
CIN
1µF
CSS
10nF
Controller
APL3512A/B
VIN VOUT
SS
CBY
0.1µF
VOUT
COUT
10µF
EN/ENB
GND
Copyright © ANPEC Electronics Corp.
Rev. A.6 - Aug., 2012
11
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet APL3512.PDF ] | |
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