RDK-115 Power Integrations, RDK-115 Datasheet

KIT REFERENCE DESIGN W/TN376PN

RDK-115

Manufacturer Part Number
RDK-115
Description
KIT REFERENCE DESIGN W/TN376PN
Manufacturer
Power Integrations
Series
TinySwitch®-PKr
Datasheets

Specifications of RDK-115

Main Purpose
AC/DC, Primary Side
Outputs And Type
4, Isolated
Power - Output
7.5W
Voltage - Output
3.3V, 5V, 12V, -12V
Current - Output
500mA, 500mA, 250mA, 30mA
Voltage - Input
85 ~ 265VAC
Regulator Topology
Flyback
Frequency - Switching
132kHz
Board Type
Fully Populated
Utilized Ic / Part
TNY376
Product
Accessories & Kits
Lead Free Status / RoHS Status
Not applicable / Not applicable
Other names
596-1145
TNY375-380
TinySwitch-PK Family
Energy-Effi cient, Off-Line Switcher With
Enhanced Peak Power Performance
Product Highlights
Lowest System Cost with Enhanced Flexibility
Enhanced Safety and Reliability Features
EcoSmart
Applications
www.powerint.com
Simple ON/OFF control, no loop compensation needed
Unique Peak Mode feature extends power range without
increasing transformer size
Selectable current limit through BP/M capacitor value
Tight I
ON time extension – typically extends low line regulation range/
hold-up time to reduce input bulk capacitance
Self-biased: no bias winding required for TNY375-376; winding
required for TNY377-380
Frequency jittering reduces EMI fi lter costs
Optimized pin out eases pcb/external heatsinking
Quiet source-connected heatsink pins for low EMI
Accurate hysteretic thermal shutdown with automatic recovery
provides complete system level overload protection and
eliminates need for manual reset
Auto-restart delivers <3% maximum power in short circuit and
open loop fault conditions
Output overvoltage shutdown with optional Zener
Line undervoltage detect threshold set using a single resistor
Very low component count enhances reliability and enables
single sided printed circuit board layout
High bandwidth provides fast turn on with no overshoot and
excellent transient load response
Extended creepage between DRAIN and all other pins improves
fi eld reliability
Easily meets all global energy effi ciency regulations
No-load <170 mW at 265 VAC without bias winding, <60 mW
with bias winding
ON/OFF control provides constant effi ciency down to very light
loads – ideal for mandatory CEC effi ciency regulations and 1 W
PC standby requirements
Applications with high peak-to-continuous power demands –
DVDs, PVRs, active speakers (e.g. PC audio), audio amplifi ers,
modems, photo printers
Applications with high power demands at startup (large output
capacitance or motor loads) - PC standby, low voltage motor
drives
Maximum frequency and current limit boosted at peak loads
Higher current limit extends maximum power in open frame
Lower current limit improves effi ciency in enclosed adapters
Allows optimum TinySwitch-PK choice by swapping devices
with no other circuit redesign
Maximizes MOSFET and magnetics power delivery
2
f parameter tolerance reduces system cost
®
– Extremely Energy Effi cient
®
Output Power Table
Description
TinySwitch-PK incorporates a 700 V MOSFET, oscillator, high-
voltage switched current source, current limit (user selectable),
and thermal shutdown circuitry. A unique peak mode feature
boosts current limit and frequency for peak load conditions. The
boosted current limit provides the peak output power while the
increased peak mode frequency ensures the transformer can be
sized for continuous load conditions rather than peak power
demands.
Table 1.
Notes:
1. Minimum continuous power in a typical non-ventilated enclosed adapter
2. Minimum continuous power in an open frame design (see Key Applications
3. Packages: P: DIP-8C, G: SMD-8C, D: SO-8C. Lead free only. See Part Ordering
4. See Key Application Considerations.
TNY375P/G/D
TNY376P/G/D
TNY377P/G
TNY378P/G
TNY379P/G
TNY380P/G
Figure 1.
measured at +50 °C ambient. Use of an external heatsink will increase power
capability.
Considerations).
Information.
Product
AC
IN
Output Power Table.
Typical Peak Power Application.
TinySwitch-PK
3
4
4
Adapter
8.5 W
10 W
13 W
16 W
18 W
20 W
230 VAC ± 15%
1
Frame
23.5 W
36.5 W
Open
15 W
19 W
28 W
32 W
2
16.5 W
Peak Adapter
22 W
28 W
34 W
39 W
45 W
10 W
12 W
14 W
6 W
7 W
8 W
85-265 VAC
1
Frame
11.5 W 12.5 W
21.5 W
28.5 W
PI-4266-012009
Open
15 W
18 W
25 W
OUT
2
July 2009
DC
+
17 W
23 W
27 W
31 W
35 W
Peak

Related parts for RDK-115

RDK-115 Summary of contents

Page 1

TNY375-380 ® TinySwitch-PK Family Energy-Effi cient, Off-Line Switcher With Enhanced Peak Power Performance Product Highlights Lowest System Cost with Enhanced Flexibility Simple ON/OFF control, no loop compensation needed • Unique Peak Mode feature extends power range without • increasing transformer ...

Page 2

TNY375-380 BYPASS/ MULTI-FUNCTION (BP/M) LINE UNDER-VOLTAGE 115 μA 25 μA ENABLE JITTER 2X 1 OSCILLATOR ENABLE/ 1.0 V UNDER- VOLTAGE (EN/UV) 6.4 V Figure 2 Functional Block Diagram. Pin Functional Description DRAIN (D) Pin: This pin ...

Page 3

A modulation of the threshold current reduces group pulsing. The threshold current is between 75 μA and 115 μA. The EN/UV pin also senses line undervoltage conditions through an ...

Page 4

TNY375-380 BYPASS/MULTI-FUNCTION Pin Undervoltage The BYPASS/MULTI-FUNCTION pin undervoltage circuitry disables the power MOSFET when the BYPASS/MULTI- FUNCTION pin voltage drops below 4 steady state operation. Once the BYPASS/MULTI-FUNCTION pin voltage drops below 4 steady state operation, ...

Page 5

V EN CLOCK DC MAX I DRAIN V DRAIN Figure 6. Operation at Near Maximum Loading ( CLOCK DC MAX I DRAIN V DRAIN Figure 7. Operation at Moderately Heavy Loading (f Enable Function TinySwitch-PK senses the EN/UV ...

Page 6

TNY375-380 V EN CLOCK D MAX I DRAIN V DRAIN Figure 9. Operation at Very Light Load (f 132 kHz). OSC 200 V 100 DC-INPUT BYPASS 0 400 200 V DRAIN Time (ms) ...

Page 7

At very light loads, the current limit will be reduced even further (Figure 9). Only a small percentage of cycles will occur ...

Page 8

TNY375-380 D1 FR106 D2 F1 FR106 85-265 22 F VAC 400 1N4007 1N4007 TinySwitch-PK U1 TNY376P Figure 14. TNY376PN, Four Output, 7 ...

Page 9

Key Application considerations TinySwitch-PK Design Considerations Output Power Table Data sheet maximum output power table (Table 1) represents the maximum practical continuous output power level that can be obtained under the following assumed conditions: 1. The minimum DC input voltage ...

Page 10

TNY375-380 should be located as close as possible to the SOURCE and BYPASS pins of the device. For best performance of the OVP function recommended that a relatively high bias winding voltage is used, in the range of ...

Page 11

... TinySwitch-PK device as specifi the data sheet. Under low-line maximum power, a maximum TinySwitch-PK device SOURCE pin temperature of 110 °C is recommended to allow for these variations. Design Tools Up-to-date information on design tools can be found at the Power Integrations web site: www.powerint.com. TNY375-380 Maximize hatched copper areas ( ) for optimum heatsinking ...

Page 12

TNY375-380 (1,4) Absolute Maximum Ratings DRAIN Voltage .............................................................................. -0 700 V DRAIN Peak Current: TNY375 ...........................................................0.6 A TNY376 ...........................................................0.8 A TNY377 ........................................................... 1.4 A TNY378 ............................................................2.2 A TNY379 ...........................................................2.9 A TNY380...........................................................4.3 A EN/UV Voltage ................................................................................... -0 ...

Page 13

Parameter Symbol Control Functions (cont.) I CH1 BP/M Pin Charge Current I CH2 BP/M Pin Voltage V BP/M BP/M Pin Voltage V Hysteresis BP/MH BP/M Pin Shunt V Voltage SHUNT EN/UV Pin Line Under- I voltage Threshold LUV Circuit Protection ...

Page 14

TNY375-380 Parameter Symbol Circuit Protection (cont.) Peak Current Limit (BP/M Capacitor = I LIMITPEAKinc 10 μF) See Note E 2 Power Coeffi cient I f Initial Current Limit I INIT Leading Edge t Blanking Time LEB Current Limit Delay t ...

Page 15

Parameter Symbol Output ON-State R Resistance DS(ON) I DSS1 OFF-State Drain Leakage Current I DSS2 Breakdown BV Voltage DSS DRAIN Supply Voltage Auto-Restart t ON-Time OSC Auto-Restart DC Duty Cycle AR www.powerint.com Conditions SOURCE = 0 V; ...

Page 16

TNY375-380 NOTES: A. For all BP/M pin capacitor values accurate estimate of device controller current consumption at no-load, since operating frequency is so low under these S1 conditions. Total device consumption at no-load is the sum ...

Page 17

BP/M S EN/UV S NOTE: This test circuit is not applicable for current limit or output characteristic measurements. Figure 17. General Test Circuit. Figure 18. Duty Cycle Measurement. www.powerint.com 470 Ω 470 Ω ...

Page 18

TNY375-380 1.1 1.0 0.9 -50 - 100 125 150 Junction Temperature (°C) Figure 21. Breakdown vs. Temperature. 1.2 1 0.8 0.6 0.4 0 Temperature (°C) Figure 23. Standard Current Limit vs. Temperature. ...

Page 19

Scaling Factors: TNY375 1.0 120 TNY376 1.33 TNY377 2.33 TNY378 3.67 90 TNY379 4.87 TNY380 7. 200 DRAIN Voltage (V) Figure 27. Drain Capacitance Power. www.powerint.com 400 600 Figure 28. Undervoltage Threshold vs. Temperature. TNY375-380 ...

Page 20

TNY375-380 ⊕ .004 (.10) -E- .240 (6.10) .260 (6.60) Pin 1 .100 (2.54) (BSC) .367 (9.32) -D- .387 (9.83) .125 (3.18) .145 (3.68) .032 (.81) .048 (1.22) .037 (.94) .053 (1.35) ⊕ .004 (.10) -E- .240 ...

Page 21

B 4 4.90 (0.193) BSC A 8 3.90 (0.154) BSC 2 0.10 (0.004 Pin 1 ID 1.27 (0.050) BSC 1.25 - 1.65 1.35 (0.053) 1.75 (0.069) (0.049 - 0.065) 0.10 (0.004) 0.25 (0.010) Reference Solder Pad ...

Page 22

... The products and applications illustrated herein (including transformer construction and circuits external to the products) 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. Power Integrations grants its customers a license under certain patent rights as set forth at http://www ...

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