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PDF SEN012-013 Data sheet ( Hoja de datos )
| Número de pieza | SEN012-013 | |
| Descripción | Zero Loss High Voltage Sense Signal Disconnect IC | |
| Fabricantes | Power Integrations | |
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SEN012-013
SENZero® Family
Zero1 Loss High Voltage Sense Signal Disconnect IC
Product Highlights
Features and Performance
• Eliminates significant standby losses
• Disconnects unnecessary circuit blocks during standby,
remote-off, or light-load conditions
• Ultra low leakage (maximum 1 mA) 650 V MOSFETs
• <0.5 mW per channel during standby
• Single component provides remote disconnect functionality
• No external components or additional bias supply needed for
remote-off
• Integrates multiple disconnect MOSFETs, gate drive, and
protection
• Minimal component count provides higher reliability
• Protection features to help production/manufacturing yields
• Pin-to-pin fault and ESD protection
• Triggerable via remote-off signal or load conditions
• Integrated gate pull down circuit protects against loss of
trigger signal fault
• Green package technology
• RoHS compliant and halogen free
• Withstands high differential surge conditions
• S1, S2 and S3 interface with controller pins up to 6.5 V
above system ground
EcoSmart® – Energy Efficient
• <3 mW loss at 230 VAC in Off/standby mode
Applications
• ACDC converters with high-voltage resistive signal paths
• Ideal for all very low standby systems such as those meeting
EuP Lot 6 and similar energy efficiency standards
Description
SENZero is a compact low cost solution to eliminate losses in
resistive signal paths connected between high-voltage rails and
switching power supply controller(s). Examples include feed-
forward or feedback signal paths connected to boost controllers
in power factor corrected systems and feedforward signal paths
in two switch forward / LLC / half and full bridge converters.
The device is available in 2 (SEN012) and 3 (SEN013) channel
versions according to the application’s requirements. The
internal gate drive and protection circuitry provides gate drive
signals to the internal 650 V MOSFETs in response to the voltage
applied to the VCC pin. This simple configuration provides easy
integration into existing systems by using the system VCC rail as
an input to the SENZero.
The SENZero family uses a low cost compact SO-8 package to
reduce PCB area while the pin configuration is designed to meet
pin-pin fault conditions.
High-Voltage
DC Rail
System
VCC
System
Standby
Signal
VCC
D1 D2
SENZero G
S1 S2
System
Ground
Figure 1. Typical Application SEN012.
To Controller(s)
Sense Pins
PI-5813-032510
High-Voltage
DC Rail
System
VCC
System
Standby
Signal
VCC
D1 D2 D3
SENZero G
S1 S2
S3
System
Ground
Figure 2. Typical Application SEN013.
To Controller(s)
Sense Pins
PI-5812-032510
Component Selection Table
Product2
Integrated Disconnect
MOSFETs
230 VAC
Power Consumption
in Standby
SEN012DG
SEN013DG
2
3
<1 mW
<1.5 mW
Table 1. Component Selection Table.
Notes:
1. IEC 62301 clause 4.5 rounds standby power use below 5 mW to zero.
2. Package: D: SO-8.
www.powerint.com
November 2010
Free Datasheet http://www.datasheet4u.com/
1 page  
SEN012-013
QA
UB
RA
2 kΩ
VCC
R1
10 Ω
C1
Figure 13. Typical Connection with PS(ON) Signal.
The figure above shows a typical VCC arrangement to satisfy
timing requirements.
Transistor QA is enabled during remote on condition. Capacitor
C2 will charge through D1 while C1 is charged through R1.
SENZero will turn on ahead of PFC IC. Diode D2 makes C2
voltage tracks C1 voltage. Capacitor C2 can be increased to
ensure that during turn-off, PFC turns-off first before SENZero.
Capacitors C1 and C2 can be 100 nF standard decoupling
capacitors. However, C1 needs to be ≥C2.
D2
VCC
PFC IC
GND
D1
OVP
C2 SENZero
GND
PI-6204-102510
www.powerint.com
5
Rev. B 11/05/10
Free Datasheet http://www.datasheet4u.com/
5 Page | ||
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| PDF Descargar | [ Datasheet SEN012-013.PDF ] | |
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