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PDF DNP015 Data sheet ( Hoja de datos )
| Número de pieza | DNP015 | |
| Descripción | Green Mode Fairchild Power Switch | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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1. DNP015 datasheet pdf  Hay una vista previa y un enlace de descarga de DNP015 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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April 2013
DNP015
Green Mode Fairchild Power Switch (FPS™)
Features
mWSaver™ Technology
Achieves Low No-Load Power Consumption:
< 40 mW at 230 VAC (EMI Filter Loss Included)
Meets 2013 ErP Standby Power Regulation
(< 0.5 W Consumption with 0.25 W Load) for
ATX Power and LCD TV Power
Eliminates X-Cap Discharge Resistor Loss with
AX-CAP® Technology
Linearly Decreased Switching Frequency at
Light-Load Condition and Advanced Burst Mode
Operation at No-Load Condition
700 V High-Voltage JFET Startup Circuit to
Eliminate Startup Resistor Loss
Highly Integrated with Rich Features
Internal Avalanche-Rugged 700 V SenseFET
Built-in 5 ms Soft-Start
Peak-Current-Mode Control
Cycle-by-Cycle Current Limiting
Leading-Edge Blanking (LEB)
Synchronized Slope Compensation
Proprietary Asynchronous Jitter to Reduce EMI
Advanced Protection
Internal Overload / Open-Loop Protection (OLP)
VDD Under-Voltage Lockout (UVLO)
VDD Over-Voltage Protection (OVP)
Constant Power Limit (Full AC Input Range)
Internal Latch Protection (OLP, VDD OVP, OTP)
Internal OTP Sensor with Hysteresis
Description
The DNP015 is a next-generation, Green Mode
Fairchild Power Switch (FPS™) that incorporates
Fairchild’s innovative mWSaver™ technology, which
dramatically reduces standby and no-load power
consumption, enabling conformance to all worldwide
Standby Mode efficiency guidelines. It integrates an
advanced current-mode pulse width modulator (PWM)
and an avalanche-rugged 700 V SenseFET in a single
package, allowing auxiliary power designs with higher
standby efficiency, reduced size, improved reliability,
and lower system cost than prior solutions.
Fairchild Semiconductor’s mWSaver™ technology
offers best-in-class minimum no-load and light-load
power consumption. An innovative Ax-CAP® method,
one of the five proprietary mWSaver™ technologies,
minimizes losses in the EMI filter stage by eliminating
the X-cap discharge resistors while meeting IEC61010-1
safety requirements. mWSaver™ Green Mode gradually
decreases switching frequency as load decreases to
minimize switching losses.
Proprietary asynchronous jitter decreases EMI emission
and built-in synchronized slope compensation allows
stable peak-current-mode control over a wide range of
input voltage. The proprietary internal line compensation
ensures constant output power limit over the entire
universal line voltage range.
Requiring a minimum number of external components,
DNP015 provides a basic platform that is well suited for
the cost-effective flyback converter design with low
standby power consumption.
Applications
General-purpose switched-mode power supplies
(SMPS) and flyback power converters, including:
Auxiliary Power Supply for PC, Server, LCD TV,
and Game Console
SMPS for VCR, SVR, STB, DVD, and DVCD
Player, Printer, Facsimile, and Scanner
General Adapter
LCD Monitor Power / Open-Frame SMPS
Ordering Information
Part Number SenseFET
DNP015
3 A / 700 V
Operating
Temperature Range
-40°C to +105°C
Package
Packing Method
8-Pin, Dual In-Line Package (DIP)
Tube
© 2013 Fairchild Semiconductor Corporation
DNP015 • Rev. 1.0.0
1
www.fairchildsemi.com
1 page  
Electrical Characteristics
VDD=15 V and TA=25C unless otherwise specified.
Symbol
Parameter
SenseFET Section(11)
BVDSS Drain-Source Breakdown Voltage
IDSS Zero-Gate-Voltage Drain Current
RDS(ON)
CISS
Drain-Source On-State Resistance(12)
Input Capacitance
COSS Output Capacitance
CRSS Reverse Transfer Capacitance
td(on)
Turn-On Delay
tr Rise Time
td(off)
Turn-Off Delay
tf Fall Time
Control Section
Condition
VGS = 0 V, ID=250 µA,
TJ=25°C
VDS = 700 V, VGS = 0 V
VDS = 560 V, VGS = 0 V,
TC = 125C
VGS = 10 V, ID = 1 A
VGS = 0 V, VDS = 25 V,
f = 1 MHz
VGS = 0 V, VDS = 25 V,
f = 1 MHz
VGS = 0 V, VDS = 25 V,
f = 1 MHz
VDS = 350 V, ID = 1.0 A
VDS = 350 V, ID = 1.0 A
VDS = 350 V, ID = 1.0 A
VDS = 350 V, ID = 1.0 A
VDD Section
VDD-ON
VDD-OFF1
VDD-OFF2
UVLO Start Threshold Voltage
UVLO Stop Threshold Voltage
Threshold Voltage of VDD Pin for HV
Device Turn-On at Latch Mode
VDD-LH
IDD-ST
IDD-OP1
Threshold Voltage on VDD Pin for
Latch-Off Release Voltage
Startup Supply Current
Operating Supply Current with Normal
Switching Operation
VDD-ON – 0.16 V
VDD=15 V, VFB=3 V
IDD-OP2
VDD-OVP
tD-VDDOVP
Operating Supply Current without
Switching Operation
VDD Over-Voltage Protection(11)
VDD Over-Voltage Protection
Debounce Time(11)
VDD=15 V, VFB=1 V
HV Section
IHV Supply Current Drawn from HV Pin
IHV-LC Leakage Current after Startup
VAC-ON Brown-in Threshold Level (VDC)
KDISCHARGE X-Cap Discharge Threshold
tAC-OFF
AC-Off Debounce Time for HV
Discharge Function(11)
HV=120 VDC,
VDD=0 V with 10 µF
HV=700 V,
VDD=VDD-OFF1+1 V
DC Voltage Applied to
HV Pin through 200 kΩ
R=200 kΩ to HV Pin
© 2013 Fairchild Semiconductor Corporation
DNP015 • Rev. 1.0.0
5
Min. Typ. Max. Unit
700 V
50
μA
200
4.00 4.75
Ω
315 410
pF
47 61 pF
9.0 24.0
11.2 33.0
34 78
28.2 67.0
32 74
pF
ns
ns
ns
ns
11 12 13 V
5 6 7V
8 9 10 V
3.5 4.0 4.5
V
30 µA
3.6 mA
1.6 mA
28 V
150 µs
1.5 5.0 mA
10 µA
102 110 118
V
60 %
160 ms
Continued on the following page…
www.fairchildsemi.com
5 Page 
Protections
Protection functions include Overload / Open-Loop
Protection (OLP), Over-Voltage Protection (OVP), and
Over-Temperature Protection (OTP). All the protections
are implemented as Latch Mode. Once the fault
condition is detected, switching is terminated and the
SenseFET remains off. This causes VDD to fall and
“hiccup” between 9 V and 12 V. As long as AC input is
unplugged; VDD falls to 4 V, the latch can be released,
and the HV startup circuit charges VDD up to 12 V
voltage; allowing restart.
Open-Loop / Overload Protection (OLP)
Because of the pulse-by-pulse current-limit capability,
the maximum peak current through the SenseFET is
limited and maximum input power is limited. If the output
consumes more than the limited maximum power, the
output voltage (VO) drops below the set voltage. Then
the current through the opto-coupler LED and the
transistor become virtually zero and FB voltage is pulled
HIGH, as shown in Figure 25. If feedback voltage is
above 4.6 V for longer than 56 ms, OLP is triggered.
This protection is also triggered when the feedback loop
is open due to a soldering defect.
VFB
5.4V
VFB-OLP (4.6V)
VDD Over-Voltage Protection (OVP)
If the secondary-side feedback circuit malfunctions or a
solder defect causes an opening in the feedback path,
the current through the opto-coupler transistor becomes
virtually zero. Then feedback voltage climbs up in a
similar manner to the overload situation, forcing the
preset maximum current to be supplied to the SMPS
until the overload protection triggers. Because more
energy than required is provided to the output, the
output voltage may exceed the rated voltage before the
overload protection triggers, resulting in the breakdown
of the devices in the secondary side. To prevent this
situation, an OVP circuit is employed. Since VDD voltage
is proportional to the output voltage by the transformer
coupling, the over voltage of output is indirectly detected
using VDD voltage. The OVP is triggered when VDD
voltage reaches 28 V. Debounce time (typically 150 µs)
is applied to prevent false triggering by switching noise.
Over-Temperature Protection (OTP)
The SenseFET and the control IC are integrated in one
package. This makes it easier for the control IC to
detect the abnormal over temperature of the SenseFET.
If the temperature exceeds approximately 135°C, the
OTP is triggered and the MOSFET remains off.
OLP Shutdown Delay
56ms
OLP Triggered
Figure 25. OLP Operation
© 2013 Fairchild Semiconductor Corporation
DNP015 • Rev. 1.0.0
11
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet DNP015.PDF ] | |
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