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Power Integrations

TNY284K Datasheet Preview

TNY284K Datasheet

(TNY284 - TNY290) Off-Line Switcher

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TNY284-290
TinySwitch-4 Family
Energy-Efficient, Off-Line Switcher with
Line Compensated Overload Power
Product Highlights
Lowest System Cost with Enhanced Flexibility
725 V rated MOSFET
Increases BV de-rating margin
Line compensated overload power – no additional components
Dramatically reduces max overload variation over universal input
voltage range
±5% turn on UV threshold: line voltage sense with single external
resistor
Simple ON/OFF control, no loop compensation needed
Selectable current limit through BP/M capacitor value
Higher current limit extends peak power or, in open frame
applications, maximum continuous power
Lower current limit improves efficiency in enclosed adapters/
chargers
Allows optimum TinySwitch-4 choice by swapping devices with
no other circuit redesign
Tight I2f parameter tolerance reduces system cost
Maximizes MOSFET and magnetics utilization
ON-time extension – extends low-line regulation range/hold-up time
to reduce input bulk capacitance
Self-biased: no bias winding or bias components
Frequency jittering reduces EMI filter costs
Pin-out simplifies heat sinking to the PCB
SOURCE pins are electrically quiet for low EMI
Enhanced Safety and Reliability Features
Accurate hysteretic thermal shutdown protection with automatic
recovery eliminates need for manual reset
Auto-restart delivers <3% of maximum power in short-circuit and
open loop fault conditions
Output overvoltage shutdown with optional Zener
Fast AC reset with optional UV external 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 field
reliability
EcoSmart™– Extremely Energy Efficient
Easily meets all global energy efficiency regulations
No-load <30 mW with bias winding, <150 mW at 265 VAC without
bias winding
ON/OFF control provides constant efficiency down to very light loads
– ideal for mandatory CEC regulations and EuP standby requirements
Applications
PC Standby and other auxiliary supplies
DVD/PVR and other low power set top decoders
Supplies for appliances, industrial systems, metering, etc
Chargers/adapters for cell/cordless phones, PDAs, digital cameras,
MP3/portable audio, shavers, etc.
+
Wide-Range
High-Voltage
DC Input
D
TinySwitch-4
S
EN/UV
BP/M
Figure 1. Typical Standby Application.
+
DC
Output
PI-6578-020915
SO-8C (D Package)
DIP-8C (P Package)
Figure 2. Package Options.
eSOP-12B (K Package)
Output Power Table
Product3
230 VAC ± 15%
Adapter1
Peak or
Open
Frame2
85-265 VAC
Adapter1
Peak or
Open
Frame2
TNY284P/D/K
TNY285P/D
TNY285K
6W
8.5 W
11 W
11 W
15 W
15 W
5W
6W
7.5 W
8.5 W
11.5 W
11.5 W
TNY286P/D
10 W
19 W
7W
15 W
TNY286K
13.5 W
19 W
9.5 W
15 W
TNY287P
13 W
23.5 W
8W
18 W
TNY287D
TNY287K
TNY288P
TNY288D
TNY288K
11.5 W
18 W
16 W
14.5 W
23 W
23.5 W
23.5 W
28 W
26 W
28 W
7W
11 W
10 W
9W
14.5 W
18 W
18 W
21.5 W
19.5 W
21.5 W
TNY289P
18 W
32 W
12 W
25 W
TNY289K
25 W
32 W
17 W
25 W
TNY290P
20 W
36.5 W
14 W
28.5 W
TNY290K
28 W
36.5 W
20 W
28.5 W
Table 1. Output Power Table.
Notes:
1. Minimum continuous power in a typical non-ventilated enclosed adapter
measured at +50 °C ambient. Use of an external heat sink will increase power
capability.
2. Minimum peak power capability in any design or minimum continuous power
in an open frame design (see Key Applications Considerations).
3. Packages: P: DIP-8C, D: SO-8C, K: eSOP-12B. See Part Ordering Information.
www.power.com
This Product is Covered by Patents and/or Pending Patent Applications.
August 2016




Power Integrations

TNY284K Datasheet Preview

TNY284K Datasheet

(TNY284 - TNY290) Off-Line Switcher

No Preview Available !

TNY284-290
BYPASS/
MULTI-FUNCTION
(BP/M)
25 µA
115 µA
ENABLE
ENABLE/
UNDER-
VOLTAGE
(EN/UV)
1.0 V + VT
1.0 V
LINE UNDERVOLTAGE
FAULT
PRESENT
AUTO-
RESTART
COUNTER
RESET
JITTER
CLOCK
DCMAX
OSCILLATOR
6.4 V
OVP
LATCH
REGULATOR
5.85 V
DRAIN
(D)
BYPASS PIN
+ UNDER-VOLTAGE
BYPASS
CAPACITOR
-
SELECT AND
CURRENT
5.85 V
4.9 V
VILIMIT
LIMIT STATE
MACHINE
LINE
COMPENSATION
CURRENT LIMIT
COMPARATOR
-
+
THERMAL
SHUTDOWN
SQ
RQ
LEADING
EDGE
BLANKING
Figure 3. Functional Block Diagram.
Pin Functional Description
DRAIN (D) Pin:
This pin is the power MOSFET drain connection. It provides internal
operating current for both start-up and steady-state operation.
BYPASS/MULTI-FUNCTION (BP/M) Pin:
This pin has multiple functions:
It is the connection point for an external bypass capacitor for the
internally generated 5.85 V supply.
It is a mode selector for the current limit value, depending on the
value of the capacitance added. Use of a 0.1 μF capacitor results
in the standard current limit value. Use of a 1 μF capacitor results
in the current limit being reduced to that of the next smaller device
size. Use of a 10 μF capacitor results in the current limit being
increased to that of the next larger device size for TNY285-290.
It provides a shutdown function. When the current into the bypass
pin exceeds ISD, the device latches off until the BP/M voltage
drops below 4.9 V, during a power-down or, when the UV function
is employed with external resistors connected to the BP/UV pin, by
taking the UV/EN pin current below IUV minus the reset hysteresis
(Typ. 18.75 μA). This can be used to provide an output overvolt-
age function with a Zener connected from the BYPASS/MULTI-
FUNCTIONAL pin to a bias winding supply.
SOURCE
(S)
PI-6639-072115
D Package (SO-8C)
EN/UV 1
BP/M 2
D4
8S
7S
6S
5 S P Package (DIP-8C)
EN/UV 1
8S
Exposed Pad (On Bottom)
Internally Connected to
SOURCE Pin
K Package
(eSOP-12B)
EN/UV 1
BP/M 2
N/C 3
N/C 4
D6
BP/M 2
D4
12 S
11 S
10 S
9S
8S
7S
7S
6S
5S
PI-6577-021015
Figure 4. Pin Configuration.
2
Rev. D 08/16
www.power.com


Part Number TNY284K
Description (TNY284 - TNY290) Off-Line Switcher
Maker Power Integrations
Total Page 26 Pages
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