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TOP222YN Datasheet Download - Power Integrations

Номер произв TOP222YN
Описание Three-Terminal Off-Line PWM Switch
Производители Power Integrations
логотип Power Integrations логотип 



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TOP222YN Даташит, Описание, Даташиты
This product is not recommended for new designs.
TOP221-227
TOPSwitch-II Family
Three-Terminal Off-Line PWM Switch
Product Highlights
• Lowest cost, lowest component count switcher solution
• Cost competitive with linears above 5 W
• Very low AC/DC losses – up to 90% efficiency
• Built-in Auto-restart and Current limiting
• Latching Thermal shutdown for system level protection
• Implements Flyback, Forward, Boost or Buck topology
• Works with primary or opto feedback
• Stable in discontinuous or continuous conduction mode
• Source connected tab for low EMI
• Circuit simplicity and Design Tools reduce time to market
Description
The second generation TOPSwitch-II family is more cost
effective and provides several enhancements over the first
generation TOPSwitch family. The TOPSwitch-II family
extends the power range from 100W to 150W for 100/115/
230 VAC input and from 50W to 90W for 85-265 VAC univer-
sal input. This brings TOPSwitch technology advantages
to many new applications, i.e. TV, Monitor, Audio amplifiers,
etc. Many significant circuit enhancements that reduce the
sensitivity to board layout and line transients now make the
design even easier. The standard 8L PDIP package option
AC
IN
D
TOPSwitch
CONTROL C
S
Figure 1. Typical Flyback Application.
PI-1951-091996
reduces cost in lower power, high efficiency applications.
The internal lead frame of this package uses six of its pins to
transfer heat from the chip directly to the board, eliminating
the cost of a heat sink. TOPSwitch incorporates all functions
necessary for a switched mode control system into a three
terminal monolithic IC: power MOSFET, PWM controller, high
voltage start up circuit, loop compensation and fault protec-
tion circuitry.
Output Power Table
TO-220 (Y) Package1
PART
ORDER
NUMBER
Single Voltage Input 3
100/115/230 VAC ±15%
P 4,6
MAX
Wide Range Input
85 to 265 VAC
P 4,6
MAX
TOP221YN
12 W
7W
TOP222YN
25 W
15 W
8L PDIP (P) or 8L SMD (G) Package2
PART
ORDER
NUMBER
Single Voltage Input3
100/115/230 VAC ±15%
P 5,6
MAX
Wide Range Input
85 to 265 VAC
P 5,6
MAX
TOP221 PN or TOP221GN
9W
6W
TOP222 PN or TOP222GN
15 W
10 W
TOP223YN
50 W
30 W
TOP223 PN or TOP223GN
25 W
15 W
TOP224YN
75 W
45 W
TOP224 PN or TOP224GN
30 W
20 W
TOP225YN
100 W
60 W
TOP226YN
125 W
75 W
TOP227YN
150 W
90 W
Notes: 1. Package outline: TO-220/3 2. Package Outline: DIP-8 or SMD-8 3. 100/115 VAC with doubler input 4. Assumes appro-
priate heat sinking to keep the maximum TOPSwitch junction temperature below 100 °C. 5. Soldered to 1 sq. in. (6.45 cm2), 2 oz.
cpoopwpeer rccalpaadb(i6lit1y0ingma /gmiv2)en6a. pPpMAliXciastitohne
maximum practical continuous power output level for conditions
depends on thermal environment, transformer design, efficiency
shown. The continuous
required, minimum spec-
ified input voltage, input storage capacitance, etc. 7. Refer to key application considerations section when using TOPSwitch-II in
an existing TOPSwitch design.
www.power.com
This Product is Covered by Patents and/or Pending Patent Applications.
August 2016







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TOP222YN Даташит, Описание, Даташиты
TOP221-227
CONTROL
VC
ZC
SHUNT REGULATOR/
ERROR AMPLIFIER
-
+ 5.7 V
5.7 V
4.7 V
0
SHUTDOWN/ 1
AUTO-RESTART
+
-
INTERNAL
SUPPLY
8
IFB
OSCILLATOR
DMAX
CLOCK
SAW
RE
THERMAL
SHUTDOWN
POWER-UP
RESET
SQ
RQ
-
+
PWM
COMPARATOR
SQ
RQ
DRAIN
+
- VILIMIT
CONTROLLED
TURN-ON
GATE
DRIVER
LEADING
EDGE
BLANKING
MINIMUM
ON-TIME
DELAY
SOURCE
Figure 2. Functional Block Diagram.
Pin Functional Description
DRAIN Pin:
Output MOSFET drain connection. Provides internal bias
current during start-up operation via an internal switched
high-voltage current source. Internal current sense point.
CONTROL Pin:
Error amplifier and feedback current input pin for duty cycle
control. Internal shunt regulator connection to provide inter-
nal bias current during normal operation. It is also used as
the connection point for the supply bypass and auto-restart/
compensation capacitor.
SOURCE Pin:
YN package – Output MOSFET source connection for high
voltage power return. Primary side circuit
common and reference point.
PN and GN package – Primary-side control circuit common
and reference point.
SOURCE (HV RTN) Pin: (P and G package only)
Output MOSFET source connection for high voltage power
return.
PI-1935-091696
Tab Internally
Connected to SOURCE Pin
Y Package (TO-220/3)
DRAIN
SOURCE
CONTROL
S1
S2
S2
C4
8 S (HV RTN)
7 S (HV RTN)
6 S (HV RTN)
5D
P Package (DIP-8)
G Package (SMD-8)
Figure 3. Pin Configuration.
PI-2084-040401
2
Rev. G 08/16
www.power.com







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TOP222YN Даташит, Описание, Даташиты
TOPSwitch-II Family Functional Description
TOPSwitch is a self biased and protected linear control cur-
rent-to-duty cycle converter with an open drain output. High
efficiency is achieved through the use of CMOS and integra-
tion of the maximum number of functions possible. CMOS
process significantly reduces bias currents as compared to
bipolar or discrete solutions. Integration eliminates external
power resistors used for current sensing and/or supplying
initial start-up bias current.
During normal operation, the duty cycle of the internal output
MOSFET decreases linearly with increasing CONTROL pin
current as shown in Figure 4. To implement all the required
control, bias, and protection functions, the DRAIN and CON-
TROL pins each perform several functions as described
below. Refer to Figure 2 for a block diagram and to Figure 6
for timing and voltage waveforms of the TOPSwitch inte-
grated circuit.
TOP221-227
Auto-restart
DMAX
IB
Slope = PWM Gain
DMIN
ICD1 2.0
6.0
IC (mA)
Figure 4. Relationship of Duty Cycle to CONTROL Pin Current.
PI-2040-050197
5.7 V
VC 4.7 V
0
DRAIN VIN
0
5.7 V
VC 4.7 V
0
DRAIN VIN
0
CTcoisnntheectteodtatloetxhteerCnaOlNcTaRpaOcLitpanince
Figure 5. Start-up Waveforms for (a) Normal Operation and (b) Auto-restart.
www.power.com
3
Rev. G 08/16










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