|
|
PDF APL3227 Data sheet ( Hoja de datos )
| Número de pieza | APL3227 | |
| Descripción | High-Current Overvoltage Protectors | |
| Fabricantes | ANPEC | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de APL3227 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
|
No Preview Available !
APL3227
High-Current Overvoltage Protectors with Adjustable OVLO
Features
• Wide supply voltage range from 2.5V to 28V
• Low ON resistance: 50mΩ(Max) at a supply voltage
of 5V
• Flexible overvoltage-protection trip level
-Wide adjustable OVLO threshold range from 4V
to 20V
-Preset internal accurate OVLO threshold
• Low quiescent current 70µA
• Internal 8ms startup debounce
• Protection circuitry:
-Surge Immunity to 120V
-Overvoltage lockout
• Low Capacitance ESD Protection
• Available in WLCSP1.82x1.22-12 Packages
• Lead Free Green Devices Available (RoHS
Compliant)
General Description
The APL3227 overvoltage protection devices feature a
low 50mΩ (max) RON internal FET and protect low-volt-
age systems against voltage faults up to +28VDC. An
internal clamp also protects the devices from surge up to
+120V. When the input voltage exceeds the overvoltage
threshold, the internal FET is turned off to prevent dam-
age to the protected downstream components.
The overvoltage protection threshold can be adjusted with
optional external resistors to any voltage between 4V and
20V. With the OVLO input set below the external OVLO
select voltage, the APL3227 automatically choose the
accurate internal trip thresholds. The internal overvoltage
thresholds (OVLO) are preset to 15.5V typical(APL3227A),
6.8V typical(APL3227B),5.825V typical(APL3227C),9.98V
typical(APL3227D), and 13.32V typical(APL3227E). The
devices feature an open-drain ACOK output indicating a
stable supply between minimum supply voltage and
VOVLO. The APL3227 are also protected against over
current events by an internal thermal shutdown.
Applications
• Smart Phones and PDAs
• Digital Still Cameras
• Portable Devices
Pin Configuration
Top View
EN
OUT
OUT
(A1) (A2) (A3)
GND
(A4)
ACOK
OUT
IN
GND
(B1) (B2) (B3) (B4)
Simplified Application Circuit
POWER
ADAPTER
1µF
R1
R2
IN
IN
IN
OVLO APL3227
OUT
OUT
OUT
VI/O
1µF
EN ACOK
GND
OVLO
IN
IN GND
(C1) (C2) (C3) (C4)
WLCSP1.82x1.22-12
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.3 - Oct., 2016
1
www.anpec.com.tw
1 page  
APL3227
Typical Operating Characteristics
IN Supply Current vs. Junction
Temperature
150
130
110
90
70
50
-40
VIN=5V
0 40 80
Junction Temperature (oC)
120
OVLO Supply Current vs. Junction
Temperature
150
130
110
90
70
50
-40
VIN=5V
VOVLO=3V
0 40 80
Junction Temperature (oC)
120
External OVLO Threshold vs.
Junction Temperature
1.3
1.26
1.22
1.18
VOVLO Rising
VOVLO Falling
1.14
1.1
-40
VIN=5V
0 40 80
Junction Temperature (oC)
120
Copyright © ANPEC Electronics Corp.
Rev. A.3 - Oct., 2016
5
IN Shutdown Current vs. Junction
Temperature
40
30
20
10
0
-40
VIN=5V
0 40 80
Junction Temperature (oC)
120
Internal Overvoltage vs. Junction
Temperature
7
6.9
VIN Rising
6.8
6.7 VIN Falling
6.6
6.5
-40
0 40 80
Junction Temperature (oC)
120
Power Switch On Resistance vs.
100 Junction Temperature
80
60
40
20
0
-40
VIN= 5V
IOUT=1A
0 40 80
Junction Temperature(oC)
www.anpec.com.tw
5 Page 
APL3227
Application Information
IN Bypass Capacitor
For most applications, bypass IN to GND with a 1µF ce-
ramic capacitor as close as possible to the device. If the
power source has significant inductance due to long lead
length, the device clamps the overshoot due to LC tank
circuit.
External OVLO Adjustment Functionality
If OVLO is connected to ground, the internal OVLO com-
parator uses the internally set OVLO value.
If an external resistor-divider is connected to OVLO and
VOVLO exceeds the OVLO select voltage, V ,OVLO_SELECT the
internal OVLO comparator reads the IN fraction fixed by
the external resistor divider. R1 = 1MΩ is a good starting
value for minimum current consumption. Since VIN_OVLO,
V , and R1 are known,R2 can be calculated from
OVLO_THRESH
the following formula:
VIN_OVLO
=
VOVLO_TH
×
1+
R1
R2
This external resistor-divider is completely independent
from the internal resistor-divider.
Recommended Minimum Footprint
0.29
1.82
Unit: mm
0.4
1.22
WLCSP1.82x1.22-12
Copyright © ANPEC Electronics Corp.
Rev. A.3 - Oct., 2016
11
www.anpec.com.tw
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet APL3227.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| APL3222 | Slew-Rate-Controlled Load Switch | ANPEC |
| APL3225 | Li+ Charger Protection IC | ANPEC |
| APL3227 | High-Current Overvoltage Protectors | ANPEC |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |