LNK584-586
™
LinkZero-AX
Zero Standby Consumption Integrated Off-Line Switcher
Product Highlights
+
+
Lowest System Cost with Zero Standby Consumption
PIN <0.00 W at
325 VDC in
Power Down Mode
DC
Output
•ꢀ Simple system configuration provides zero consumption
standby/Power-Down with user controlled wake up
•ꢀ Very tight IC parameter tolerances improves system manufac-
turing yield
•ꢀ Suitable for low-cost clampless designs
•ꢀ Frequency jittering greatly reduces EMI filter cost
•ꢀ Extended package creepage improves system field reliability
Wide Range
High-Voltage
DC Input
D
S
FB
Power
Down
LinkZero-AX
BP/M
Pulse
≥2.5 ms
Advanced Protection/Safety Features
•ꢀ Hysteretic thermal shutdown protection – automatic recovery
reduces field returns
CBP
Reset/Wake
Up Pulse
•ꢀ Universal input range allows worldwide operation
•ꢀ Auto-restart reduces delivered power by >85% during
short-circuit and open loop fault conditions
PI-5909-120710
Figure 1. Typical Application Schematic.
•ꢀ Simple ON/OFF control, no loop compensation needed
•ꢀ High bandwidth provides fast turn on with no overshoot
Output Power Table
EcoSmart™ – Energy Efficient
230 VAC 15%
85-265 VAC
•ꢀ Standby/Power-Down consumption less than 3 mW at
325 VDC input (Note 1)
Product3
Open Frame2
Open Frame2
•ꢀ Easily meets all global energy efficiency regulations with no
added components
•ꢀ ON/OFF control provides constant efficiency to very light loads
LNK584DG
LNK584GG
LNK585DG
LNK585GG
LNK586DG
LNK586GG
3 W
3 W
3 W
3 W
4.5 W
5 W
4 W
Applications
4.5 W
5 W
•ꢀ Ultra low consumption isolated or non-isolated standby and
auxiliary supplies
6 W
6.5 W
5.5 W
Description
LinkZero-AX combines extremely low standby/Power-Down energy
use with the industry’s lowest component count standby supply
solution. Below 3 mW at 230 VAC in Power-Down (PD) mode
meets IEC 62301 definition of zero power consumption and is
immeasurable on most power meters. LinkZero-AX is set into
Power-Down mode using an external signal to pull the FEEDBACK
pin high for 2.5 ms. Such an external signal can be generated by a
system micro controller or infrared controller. In Power-Down mode
the BYPASS pin remains regulated allowing the LinkZero-AX to be
woken up with a reset pulse to pull the BYPASS pin below a reset
threshold (1.5 V). Ultra low system consumption is therefore achieved
without needing to disconnect the input voltage with a relay.
Table 1. Output Power Table.
Notes:
1. IEC 62301 Clause 4.5 rounds standby power use below 5 mW to zero.
2. Maximum practical continuous power in an open frame design with adequate heat
sinking, measured at 50 °C ambient.
3. Packages: D: SO-8C, G: SMD-8C.
LinkZero-AX is designed to be used in isolated or non-isolated
converters. In either, the tightly specified FEEDBACK (FB) pin
voltage reference enables universal input primary side regulated
power supplies that cost effectively replace unregulated linear
transformer and other switched mode supplies. The start-up and
operating power are derived directly from the DRAIN pin. The
internal oscillator frequency is jittered to significantly reduce both
quasi-peak and average EMI, minimizing filter cost.
www.powerint.com
May 2011
POWERINT [ Power Integrations ]
