SEN012 Datasheet, PDF (1/8 Pages) Power Integrations, Inc. – Zero Loss High Voltage Sense Signal Disconnect IC

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 V_CC 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
V_CC
System
Standby
Signal
VCC
D1 D2
SENZero ^G
S1 S2
System
Ground
Figure 1. Typical Application SEN012.
High-Voltage
DC Rail
To Controller(s)
Sense Pins
PI-5813-032510
System
V_CC
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
2
SEN013DG
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