TOP250Y Power Integrations, TOP250Y Datasheet - Page 25
![IC OFFLINE SWIT UVLO HV TO220](/photos/7/32/73245/596-to-220-7c_sml.jpg)
TOP250Y
Manufacturer Part Number
TOP250Y
Description
IC OFFLINE SWIT UVLO HV TO220
Manufacturer
Power Integrations
Series
TOPSwitch®-GXr
Type
Off Line Switcherr
Datasheet
1.TOP242GN-TL.pdf
(52 pages)
Specifications of TOP250Y
Output Isolation
Isolated
Frequency Range
66 ~ 132kHz
Voltage - Output
700V
Power (watts)
290W
Operating Temperature
-40°C ~ 150°C
Package / Case
TO-220-7 (Formed Leads), 5 Leads
Output Voltage
12 V
Input / Supply Voltage (max)
265 VAC
Input / Supply Voltage (min)
85 VAC
Duty Cycle (max)
83 %
Switching Frequency
132 KHz
Supply Current
2.4 mA
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TOP250Y
Manufacturer:
POWER
Quantity:
3 585
Company:
Part Number:
TOP250Y
Manufacturer:
POWER
Quantity:
990
Company:
Part Number:
TOP250YN
Manufacturer:
PowerInt
Quantity:
2 750
Part Number:
TOP250YN
Manufacturer:
POWER
Quantity:
20 000
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
2. A very low cost, low voltage/current, momentary contact
3. No debouncing circuitry for the momentary switch is
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.
switch can be used.
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
4. No external current limiting circuitry is needed for the
5. No high voltage resistors to the input DC voltage rail are
6. Robust design: There is no ON/OFF latch that can be
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.
operation of the U4 optocoupler output due to internal
limiting of M pin current.
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.
accidentally triggered by transients. Instead, the power
supply is held in the ON-state through the secondary-side
microprocessor.
TOP242-250
11/05
O
25