IC OFFLINE SWIT UVLO HV TO220

TOP242YN

Manufacturer Part NumberTOP242YN
DescriptionIC OFFLINE SWIT UVLO HV TO220
ManufacturerPower Integrations
SeriesTOPSwitch®-GX
TypeOff Line Switcher
TOP242YN datasheet
 


Specifications of TOP242YN

Output IsolationIsolatedFrequency Range66 ~ 132kHz
Voltage - Output700VPower (watts)22W
Operating Temperature-40°C ~ 150°CPackage / CaseTO-220-7 (Formed Leads), 5 Leads
Output Voltage12 VInput / Supply Voltage (max)265 VAC
Input / Supply Voltage (min)85 VACDuty Cycle (max)83 %
Switching Frequency132 KHzSupply Current1.6 mA
Operating Temperature Range- 40 C to + 150 CMounting StyleThrough Hole
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names596-1067-5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Page 21
22
Page 22
23
Page 23
24
Page 24
25
Page 25
26
Page 26
27
Page 27
28
Page 28
29
Page 29
30
Page 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Page 25/52

Download datasheet (3Mb)Embed
PrevNext
In addition to using a minimum number of components,
TOPSwitch-GX provides many technical advantages in this
type of application:
1. Extremely low power consumption in the off mode: 80 mW
typical at 110 VAC and 160 mW typical at 230 VAC. This
is because, in the remote OFF mode, the TOPSwitch-GX
consumes very little power and the external circuitry does
not consume any current (either M, L or X pin is open) from
the high voltage DC input.
2. A very low cost, low voltage/current, momentary contact
switch can be used.
3. No debouncing circuitry for the momentary switch is
required. During turn-on, the start-up time of the power
supply (typically 10 ms to 20 ms) plus the microprocessor
initiation time act as a debouncing filter, allowing a turn-on
only if the switch is depressed firmly for at least the above
delay time. During turn-off, the microprocessor initiates
the shutdown sequence when it detects the first closure of
the switch and subsequent bouncing of the switch has no
effect. If necessary, the microprocessor could implement
the switch debouncing in software during turn-off, or a filter
capacitor can be used at the switch status input.
4. No external current limiting circuitry is needed for the
operation of the U4 optocoupler output due to internal
limiting of M pin current.
5. No high voltage resistors to the input DC voltage rail are
required to power the external circuitry in the primary. Even
the LED current for U3 can be derived from the CONTROL
pin. This not only saves components and simplifies layout,
but also eliminates the power loss associated with the high
voltage resistors in both ON and OFF states.
6. Robust design: There is no ON/OFF latch that can be
accidentally triggered by transients. Instead, the power
supply is held in the ON-state through the secondary-side
microprocessor.
TOP242-250
25
O
11/05