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SEN012-013 PDF даташит

Спецификация SEN012-013 изготовлена ​​​​«Power Integrations» и имеет функцию, называемую «Zero Loss High Voltage Sense Signal Disconnect IC».

Детали детали

Номер произв SEN012-013
Описание Zero Loss High Voltage Sense Signal Disconnect IC
Производители Power Integrations
логотип Power Integrations логотип 

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SEN012-013 Даташит, Описание, Даташиты
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/









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SEN012-013 Даташит, Описание, Даташиты
SEN012-013
SUPPLY (VCC)
Gate Drive
and
Protection
STEP
DOWN
DRAIN1 (D1)
DRAIN2 (D2)
DRAIN3 (D3)
GROUND (G)
SOURCE3 (S3)
SOURCE2 (S2)
SOURCE1 (S1)
PI-5815-012810
Figure 3. SENZero Functional Block Diagram
Pin Functional Description
SOURCE (S1, S2, S3) Pins :
Internally connect to the SOURCEs of MOSFETs 1, 2 and 3
respectively.
DRAIN (D1, D2, D3) Pins :
Internally connect to the DRAINs of MOSFETs 1, 2 and 3
respectively.
VOLTAGE SUPPLY (VCC) pin
The internal MOSFETs are fully turned on when the VCC pin
voltage is VCC(ON) (see parameter table) or more greater than their
SOURCE voltage relative to GROUND. VCC pin should be
connected to GROUND to turn the MOSFETs off.
GROUND (G) Pin:
This is the ground reference for all the SENZero pin voltages.
650
600
550
500
450
400
350
300
45 6 78
VCC-VS (V)
Figure 5. Typical RDS(ON) as a Function of VCC-VS Voltage.
9
VS = 0
VS = 3
VS = 6.5
TJ = 25 °C
10 11
D Package (SO-8)
S1 1
D1 2
NC 3
S2 4
SEN012DG
8 VCC
7G
6 NC
5 D2
S1 1
D1 2
D2 3
S2 4
SEN013DG
8 VCC
7G
6 D3
5 S3
550
500
450
400
VCC-VS = 6 V
VCC-VS = 5 V
Figure 4. Pin Configuration.
PI-5814-051710
350
0 1234567
VS (V)
Figure 6. Typical RDS(ON) as a Function of VS Voltage.
2
Rev. B 11/05/10
www.powerint.com
Free Datasheet http://www.datasheet4u.com/









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SEN012-013 Даташит, Описание, Даташиты
SEN012-013
Applications Considerations
The maximum voltage that the device can sustain across the
VCC and G pin is 16 V. The maximum voltage that any of the
source channels can be at with respect to the ground terminal
is 6.5 V. SENZero has a typical on state resistance of approxi-
mately 500 W at room temperature. The device is therefore
typically used in series with high ohmic value resistors where
this on resistance is a small percentage of the total series
impedance.
It is not necessary to provide a local bypass capacitor on the
VCC pin.
Operating Configurations for the SENZero
One configuration to power up the SENZero is shown in Figure 7.
In this circuit, SENZero is powered up from an unregulated bias
winding through a simple series pass regulator formed by Q1,
RevBeannidf
tVhZe.
This configuration ensures the VCC voltage is limited
maximum bias voltage exceeds 16 V. During power
down, as
turn off.
soon
as
the
bias
voltage
falls
below
VZ,
SENZero
will
The series pass transistor Q1 is necessary only if the bias
winding voltage regulation is not tight enough (unregulated). If
the voltage on the bias winding is regulated or is such that the
voltage on the VCC pin can be maintained in the range 6 V <
VCC < 16 V, then
be eliminated.
the
series
pass
transistor
(Q1,
RB
and
VZ)
can
Unregulated
Bias
Q1
(2N3904)
VCC
D1 D2
(2RkBΩ)
VZ
SENZero
G S1 S2
PI-6052-072010
Figure 7. SENZero Powered from an Unregulated Bias Winding Through a Series
Pass Regulator. Device is Enabled When Bias Voltage is Present.
A configuration that can be used to trigger remote-off
functionality is shown in Figure 8. In this configuration, a
regulated auxiliary output is used to power the IC. Transistor
Q1 serves as the ON/OFF switch which is commanded by the
Enable/Disable signal at its base.
Regulated
Auxiliary
Q1
(2N3906)
(20RkAΩ)
RB
(2 kΩ)
VCC
D1 D2
SENZero
Disable
ON/OFF
G S1 S2
PI-6051-072010
Figure 8. SENZero Powered From a Regulated Auxiliary Winding.
An alternative remote-off configuration is shown in Figure 9
where an unregulated bias voltage supplies the SENZero
through a series pass regulator similar to the one shown in
Figure 7. However the circuit of Figure 9 includes an ON/OFF
transistor Q2. In other versions of this circuit Q2 can be
replaced by an optocoupler allowing the ON/OFF disable signal
to be communicated from a secondary of the power supply
such as in PC power supplies.
Unregulated
Bias
Q1
(2N3904)
Q2
(2N3906)
VCC
D1 D2
ON/OFF
RB
(2 kΩ)
RB
(100 kΩ)
VZ
SENZero
G S1 S2
Enable
PI-6053-110510
Figure 9. A Modified Version of an Unregulated Bias Winding Supplying Power
Through a Series Pass Regulator. Transistor Q2 Provides Remote-Off
Functionality.
www.powerint.com
3
Rev. B 11/05/10
Free Datasheet http://www.datasheet4u.com/










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