Document
TOP252-262 TOPSwitch-HX Family
Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range
Product Highlights
Lower System Cost, Higher Design Flexibility • Multi-mode operation maximizes efficiency at all loads • New eSIP-7F and eSIP-7C packages
• Low thermal impedance junction-to-case (2 °C per watt) • Low height is ideal for adapters where space is limited • Simple mounting using a clip to aid low cost manufacturing • Horizontal eSIP-7F package ideal for ultra low height adapter
and monitor applications • Extended package creepage distance from DRAIN pin to
adjacent pin and to heat sink • No heat sink required up to 35 W using P, G and M packages
with universal input voltage and up to 48 W at 230 VAC • Output overvoltage protection (OVP) is user programmable for
latching/non-latching shutdown with fast AC reset • Allows both primary and secondary sensing • Line undervoltage (UV) detection prevents turn-off glitches • Line overvoltage (OV) shutdown extends line surge limit • Accurate programmable current limit • Optimized line feed-forward for line ripple rejection • 132 kHz frequency (254Y-258Y and all E/L packages) reduces transformer and power supply size • Half frequency option for video applications • Frequency jittering reduces EMI filter cost
+
AC
DC
IN
OUT
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D
TOPSwitch-HX
V
CONTROL C
S
XF
Figure 1. Typical Flyback Application.
PI-4510-100206
• Heat sink is connected to SOURCE for low EMI • Improved auto-restart delivers <3% of maximum power in
short circuit and open loop fault conditions • Accurate hysteretic thermal shutdown function automatically
recovers without requiring a reset • Fully integrated soft-start for minimum start-up stress • Extended creepage between DRAIN and all other pins
improves field reliability
Output Power Table
Product5
230 VAC ±15%4
Adapter1
Open Frame2
Peak3
TOP252PN/GN 9W
TOP252MN
15 W
21 W 21 W
85-265 VAC
Adapter1
Open Frame2
6W
10 W
Peak3 13 W 13 W
TOP253PN/GN TOP253MN
15 W
38 W
25 W
9W
43 W
15 W
25 W 29 W
TOP254PN/GN TOP254MN
16 W
28 W
47 W 62 W
11 W
20 W
30 W 40 W
TOP255PN/GN TOP255MN
19 W
30 W
54 W 81 W
13 W
22 W
35 W 52 W
TOP256PN/GN TOP256MN
21 W
34 W
63 W 98 W
15 W
26 W
40 W 64 W
TOP257PN/GN TOP257MN
25 W
41 W
70 W 119 W
19 W
30 W
45 W 78 W
TOP258PN/GN TOP258MN
29 W
48 W
77 W 140 W
22 W
35 W
50 W 92 W
Product5 TOP252EN/EG
230 VAC ±15%
Adapter1
Open Frame2
10 W 21 W
85-265 VAC
Adapter1
Open Frame2
6 W 13 W
TOP253EN/EG
21 W 43 W 13 W 29 W
TOP254EN/YN/EG 30 W 62 W 20 W 43 W
TOP255EN/YN/EG 40 W 81 W 26 W 57 W
TOP255LN
40 W 81 W 26 W 57 W
TOP256EN/YN/EG 60 W 119 W 40 W 86 W
TOP256LN
60 W 88 W 40 W 64 W
TOP257EN/YN/EG 85 W 157 W 55 W 119 W
TOP257LN
85 W 105 W 55 W 78 W
TOP258EN/YN/EG 105 W 195 W 70 W 148 W
TOP258LN
105 W 122 W 70 W 92 W
TOP259EN/YN/EG 128 W 238 W 80 W 171 W
TOP259LN
128 W 162 W 80 W 120 W
TOP260EN/YN/EG 147 W 275 W 93 W 200 W
TOP260LN
147 W 190 W 93 W 140 W
TOP261EN/YN/EG 177 W 333 W 118 W 254 W
TOP261LN
177 W 244 W 118 W 177 W
TOP262EN6
177 W 333 W 118 W 254 W
TOP262LN6
177 W 244 W 118 W 177 W
Table 1. Output Power Table. (for notes see page 2).
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This Product is Covered by Patents and/or Pending Patent Applications.
December 2021
TOP252-262
EcoSmart™– Energy Efficient • Energy efficient over entire load range • No-load consumption
• Less than 200 mW at 230 VAC • Standby power for 1 W input
• >600 mW output at 110 VAC input • >500 mW output at 265 VAC input
Description
TOPSwitch™-HX cost effectively incorporates a 700 V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.
Y Package Option for TOP259-261 In order to improve noise-immunity on large TOPSwitch-HX Y package parts, the F pin has been removed (TOP259-261YN are fixed at 66 kHz switching frequency) and replaced with a SIGNAL GROUND (G) pin. This pin acts as a low noise path for the C pin capacitor and the X pin resistor. It is only required for the TOP259-261YN package parts.
+
AC
DC
IN
OUT
-
Notes for Table 1: 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 continuous power in an open frame design at +50 °C ambient. 3. Peak power capability in any design at +50 °C ambient. 4. 230 VAC or 110/115 VAC with doubler. 5. Packages: P: DIP-8C, G: SMD-8C, M: SDIP-10C, Y: TO-220-7C, E: eSIP-7C, L: eSIP-7F. See part ordering information. 6. TOP261 and TOP262 have the same current limit set point. In some applications TOP262 may run cooler than TOP261 due to a lower RDS(ON) for the larger device.
D
TOPSwitch-HX
V
CONTROL C
S
XG
PI-4973-122607 Figure 2. Typical Flyback Application TOP259YN, TOP260YN and TOP2.