Power Integrations - Product Family Flyer

®
TinySwitch-II Family
Enhanced Energy Efficient Low Power
Off-line Switcher IC
JUNE 2004
PRODUCT HIGHLIGHTS
• Fully integrated auto-restart for short circuit and
open loop fault protection–saves external
component costs
• Programmable line under-voltage detect feature
prevents power on/off glitches–saves external
components
• Frequency jittering dramatically reduces EMI
(~10 dB)–minimizes EMI filter component costs
• 132 kHz operation reduces transformer size–allows
use of EF12.6 or EE13 cores for low cost and small
size
• Built-in circuitry practically eliminates audible noise
with ordinary dip-varnished transformer
NEW! TNY263 and TNY265 Family Members Expand
the Coverage for Low Power Applications
FEATURES & BENEFITS
TYPICAL FLYBACK APPLICATION
+
+
Optional
UV Resistor
BETTER COST/PERFORMANCE OVER RCC & LINEARS
• Very tight tolerances and negligible temperature variation
on key parameters eases design and lowers cost
• Expanded scalable device family for low system cost
• Lower system cost than RCC, discrete PWM and other
integrated/hybrid solutions
• Cost effective replacement for bulky regulated linears
• Simple design practically eliminates rework in
manufacturing
Wide-Range
HV DC Input
®
EcoSmart - EXTREMELY ENERGY EFFICIENT
• No load consumption <50 mW with bias winding and
<250 mW without bias winding at
265 VAC input
• Meets Blue Angel, Energy Star,
and EC requirements
• Ideal for cell-phone charger,
DVD player, and PC standby applications
D
EN/UV
BP
TinySwitch-II
S
PI-2684-101700
HIGH PERFORMANCE AT LOW COST
• Simple ON/OFF control–no loop compensation needed
• No bias winding–simpler, lower cost transformer
• High voltage powered–ideal for charger applications
• High bandwidth provides fast turn on with no overshoot
• Current limit operation rejects line frequency ripple
• Built-in current limit and thermal protection improves
safety
DC Output
OUTPUT POWER TABLE
PRODUCT
TNY263 P or G
230 VAC ±15%
Open
Adapter
Frame
5W
7.5 W
85-265 VAC
Open
Adapter
Frame
3.7 W
4.7 W
TNY264 P or G
5.5 W
9W
4W
6W
TNY265 P or G
8.5 W
11 W
5.5 W
7.5 W
TNY266 P or G
10 W
15 W
6W
9.5 W
TNY267 P or G
13 W
19 W
8W
12 W
TNY268 P or G
16 W
23 W
10 W
15 W
See Data Sheet for Additional Notes and Conditions.
www.powerint.com
P = DIP-8
G = SMD-8
June 2004
®
TinySwitch-II Family Design Tools
POWER SUPPLY DESIGN SOFTWARE
With PI Expert™, you’re only “mouse-clicks”
away from determining the key components
in your next switching power supply design,
including the best Power Integrations power
IC and design details for the transformer!
It’s fast & easy...and best of all, FREE!
DESIGN ACCELERATOR KIT (DAK)
DAKs include a working prototype power supply,
sample devices, unpopulated pcb, data sheet,
comprehensive engineering report & other related
documentation.
DAK-14A
3 W, 9 V Universal Input Charger/Adapter
TinySwitch-II PRODUCT & DESIGN COLLATERAL*
Data Sheet
Design Ideas1
Engineering
Prototype
Reports2
Design
Example
Reports3
TNY263-268
DI-77
DI-63
DI-62
DI-61
DI-34
DI-33
DI-28
DI-13
DI-11
EPR-62
EPR-29
EPR-14
EPR-9
DER-35
DER-33
DER-11
DER-10
DER-09
DER-08
DER-07
DER-06
DER-05
DER-04
DER-03
TinySwitch-II Family Data Sheet
Application: Charger/Adapter (3 W, 9 V, Universal Input), <200 mW No-load
Application: Charger/Adapter (4.8 W, 6 V, Universal Input)
Application: Charger/Adapter (3 W, 5 V, Universal Input), <30 mW No-load
Application: Charger/Adapter (3 W, 5 V, Universal Input), <200 mW No-load
Application: Charger/Adapter (5 W, 5 V, Universal Input)
Application: DVD Player (11 W, 17 W Peak, 3.3 V / 5 V / 12 V / -12 V, Universal Input)
Application: Charger/Adapter (3 W, 5 V, Universal Input), <30 mW No-load
Application: Charger/Adapter (3 W, 9 V, Universal Input)
Application: General Purpose (1.2 W, 12 V, Universal Input Buck Converter)
Application: Charger/Adapter (3 W, 5 V, Universal Input), <30 mW No-load
Application: DVD Player (11 W, 15.5 W Peak, 3.3 V / 5 V / 12 V / -12 V, Universal Input)
Application: Charger/Adapter (3 W, 9 V, Universal Input) (DAK-14)
Application: Appliance (5 W, 5 V / 12 V, Universal Input)
Application: Charger/Adapter (3.5 W, 5.5 V, Universal Input)
Application: Charger/Adapter (3.9 W, 6.5 V, Universal Input), <80 mW No-load
Application: PC Standby (15 W, 5 V / 13 V)
Application: DVD Player (4.9 W, 8.5 W Peak, 5 V / 3.3 V / 12 V / -12 V, Universal Input)
Application: DVD Player (4.4 W, 5.7 W Peak, 5 V / 3.3 V / 12 V / -12 V, Universal Input)
Application: DVD Player (9 W, 11 W Peak, 5 V / 3.3 V / 12 V / -12 V / -22 V / 4 V, Universal Input)
Application: DVD Player (9 W, 10.5 W Peak, 5 V / 3.3 V / 12 V / -12 V / -23 V / 3 V, Universal Input)
Application: Charger/Adapter (3.6 W, 5.1 V, Universal Input)
Application: DVD Player (11 W, 17 W Peak, 3.3 V / 5 V / 12 V / -12 V)
Application: Charger/Adapter (2.4 W, 6 V, Universal Input)
Application: Charger/Adapter (2.4 W, 6 V, Universal Input)
1. Design Ideas (DI) - Design Ideas are two-page documents describing real world applications using Power Integrations’ ICs. All necessary information is provided for building the circuit.
2. Design Example Report (DER) - Design Example Reports contain a power supply design specification, schematic, bill of materials, and transformer documentation.
Performance data and typical operation characteristics are included. This design has had very limited production (typically a one-off design). 3. Engineering Prototype
Report (EPR) - Engineering Prototype Reports contain a power supply reference design specification, schematic, bill of materials and transformer documentation.
Performance data and typical operating characteristics are also included. The design has been produced in small quantities for use in our Design Accelerator Kits.
* Downloadable from www.powerint.com
www.powerint.com
Design Idea DI-77
®
TinySwitch-II 3 W Adapter:
<200 mW No-Load Consumption
Application
Device
Power Output
Input Voltage
Output Voltage
Topology
Adapter
TNY263P
3W
85-265 VAC
9 V / 330 mA
Flyback
(a similarly rated linear transformer adapter will typically
consume approximately 1 W under no-load). This low no-load
consumption is the result of the inherent cycle skipping feature of
the TinySwitch-II and careful transformer design.
Design Highlights
•
•
•
•
•
•
Replaces a linear transformer based power supply at the same
or lower cost, but with much higher performance
<200 mW no-load consumption (at 115/230 VAC)
Meets CISPR 22-B with >15 dB margin, w/o Y capacitor
Low cost, low component count solution: only 24 parts!
TinySwitch-II On/Off regulation scheme produces ±5% output
regulation over temperature with a 2% Zener
Does not require a transformer bias winding
Key Design Points
•
Operation
•
This TinySwitch-II based flyback converter produces an isolated 3 W,
9 VDC output from an 85 VAC to 265 VAC input. Fusible resistor
RF1 gives short circuit fault protection and limits startup inrush
current. Inductors L1 and L2 and capacitors C1 and C2 form a
low-cost pi ( ) filter that attenuates conducted EMI. In addition,
the internal frequency jitter of the TinySwitch-II, the use of shield
windings, an output RC snubber, and a primary-side RCD clamp
makes the circuit meet CISPR-22 Class B conducted EMI limits
without a Y capacitor, resulting in a very low value of AC leakage
current (<300 A).
•
•
•
Minimize secondary-side power consumption. Zener diode
VR1 receives its bias current from the opto-LED in U2. Using
a low current device minimizes consumption while providing
an output voltage tolerance of ±5%. A TL431 can be used for
tighter output voltage accuracy.
Minimize clamp losses: design the transformer to have a low
reflected voltage (VOR). In this case, VOR was set to 90 V.
Minimize leakage inductance: select wire gauge sizes that
completely fill each winding layer of the transformer.
Minimize intra-winding capacitance and no-load consumption:
put a layer of tape between each primary winding layer.
Use >200 k resistor in the RCD clamp to further reduce
power losses if the following two conditions are met: 1) the
EMI performance is not compromised, and 2) there is enough
drain voltage (BVDSS) margin for the internal MOSFET.
The key performance characteristic of this circuit is the
extremely low no-load power consumption of <200 mW
R2
16 Ω
L2
Bead
R1
200 kΩ
1/2 W
L
D1
1N4007
D2
1N4007
10
85 - 265
VAC
R3
200 Ω
C2
4.7 µF
400 V
D
D4
1N4007
S
L1
1.0 mH
C6
100 µF
25 V
RTN
VR1
BZX79-B8V2
TinySwitch-II
U1
TNY263P
EN
U2
PC817A
BP
D3
1N4007
C5
330 µF
16 V
8
T1
EE16
Lp = 1.6 mH
D5
1N4007G
N
9 V, 330 mA
D6
11DQ06
3
C1
4.7 µF
400 V
L3
Bead
NC NC
1
C3
1 nF
1 kV
RF1
8.2 Ω
1.0 W
C7
1 µF
50 V
C4
0.1 µF
50 V
PI-3877-052004
Figure 1. TinySwitch-II 3.0 W Adapter.
www.powerint.com
DI-77
TRANSFORMER PARAMETERS
TDK PC40 EE16, AL = 190 nH/T
EE16 Horizontal 10 pin
Winding Details
Core Cancellation: 26T, 2 x 36 AWG
Primary: 46T + 46T, 35 AWG
Shield: 8T, 2 x 26 AWG
Secondary: 10T, T.I.W. 24 AWG
Winding Order
(pin numbers)
Core Cancellation (1-NC), 2 x Tape,
Primary (3-1), Tape, Shield (2-NC),
2 x Tape, Secondary (10-8)
Primary Inductance
1.60 mH ±10%
Primary Resonant
Frequency
600 kHz (minimum)
Leakage Inductance
50 H (maximum)
dBµV
30
20
10
0
7.0
50
100 150 200 250 300 350
Figure 3. Load Regulation–CV Characteristics.
Quasi Peak
40
7.5
Output Current (mA)
Average
300
PI-3879-051204
PI-3880-051204
AV
8.0
0
70
50
85 VAC
265 VAC
8.5
6
80
QP
9.0
6.5
Table 1. Transformer Construction Information.
60
Output Voltage (VDC)
Bobbin
9.5
Power Consumption (mW)
Core Material
PI-3878-051204
10.0
2
250
200
150
100
50
-10
-20
0.15
0
1.0
10.0
80
-100.0
MHz
Figure 2. Conducted EMI, Full-Load, 230 VAC, Power Return
Connected to "Artificial Hand" of LISN.
130
180
230
280
Input Voltage (VAC)
Figure 4. No-Load Input Power Variation with
Input Voltage.
For the latest updates, visit our Web site: www.powerint.com
Power Integrations may make changes to its products at any time. Power Integrations has no liability arising from your use of any information, device or circuit described herein nor does it convey any license under its patent rights or the
rights of others. POWER INTEGRATIONS MAKES NO WARRANTIES HEREIN AND SPECIFICALLY DISCLAIMS ALL WARRANTIES INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS. The products and applications illustrated herein (including circuits external to the products and transformer construction) may be covered by one or more U.S. and foreign patents
or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at www.powerint.com.
The PI Logo, TOPSwitch, TinySwitch, LinkSwitch and EcoSmart are registered trademarks of Power Integrations. PI Expert and DPA-Switch are trademarks of Power Integrations. ©Copyright 2004, Power Integrations.
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