TOP233Y Power Integrations, TOP233Y Datasheet - Page 3
![IC OFFLINE SWIT OVP UVLO TO220](/photos/7/32/73250/596-to-220-7b_sml.jpg)
TOP233Y
Manufacturer Part Number
TOP233Y
Description
IC OFFLINE SWIT OVP UVLO TO220
Manufacturer
Power Integrations
Series
TOPSwitch®-FXr
Type
Off Line Switcherr
Datasheet
1.TOP234YN.pdf
(36 pages)
Specifications of TOP233Y
Output Isolation
Isolated
Frequency Range
66 ~ 132kHz
Voltage - Output
700V
Power (watts)
50W
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)
78 %
Switching Frequency
132 KHz
Supply Current
1.5 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:
TOP233Y
Manufacturer:
POWER
Quantity:
5 510
Company:
Part Number:
TOP233Y
Manufacturer:
NEOFIDELI
Quantity:
5 510
Part Number:
TOP233Y
Manufacturer:
N/A
Quantity:
20 000
Company:
Part Number:
TOP233YN
Manufacturer:
PowerInt
Quantity:
50
Company:
Part Number:
TOP233YN
Manufacturer:
POWER
Quantity:
2 108
Part Number:
TOP233YN
Manufacturer:
POWER
Quantity:
20 000
Figure 2. Functional Block Diagram.
Pin Functional Description
DRAIN (D) Pin:
High voltage power MOSFET drain output. The internal start-
up bias current is drawn from this pin through a switched high-
voltage current source. Internal current limit sense point for
drain current.
CONTROL (C) Pin:
Error amplifier and feedback current input pin for duty cycle
control. Internal shunt regulator connection to provide internal
bias current during normal operation. It is also used as the
connection point for the supply bypass and auto-restart/
compensation capacitor.
MULTI-FUNCTION (M) Pin:
Input pin for OV, UV, line feed forward with DC
external set current limit, remote ON/OFF and synchronization.
A connection to SOURCE pin disables all functions on this pin
and makes TOPSwitch-FX operate in simple three terminal
mode (like TOPSwitch-II).
FREQUENCY (F) Pin: (Y package only)
Input pin for selecting switching frequency: 132 kHz if connected
to SOURCE pin and 66 kHz if connected to CONTROL pin.
(Y Package Only)
FREQUENCY (F)
CONTROL (C)
FUNCTION (M)
MULTI-
R E
Z C
I FB
SHUNT REGULATOR/
ERROR AMPLIFIER
SENSE
V BG + V T
CURRENT
LINE
+
ADJUST
-
V C
LIMIT
V BG
V I (LIMIT)
ON/OFF
5.8 V
OV/UV
DC MAX
OSCILLATOR WITH JITTER
5.8 V
4.8 V
COMPARATOR
INTERNAL UV
DC MAX
HALF
FREQUENCY
STOP
+
MAX
-
START
SOFT-
reduction,
CLOCK
D MAX
SAW
SOFT START
COMPARATOR
AUTO-RESTART
The switching frequency is internally set for 132 kHz only
operation in P and G packages.
SOURCE (S) Pin:
Output MOSFET source connection for high voltage power
return. Primary side control circuit common and reference point.
Figure 3. Pin Configuration.
SHUTDOWN/
HYSTERETIC
PWM
SHUTDOWN
THERMAL
+
-
÷ 8
0
1
Connected to SOURCE Pin
INTERNAL
SUPPLY
Tab Internally
S
R
Y Package (TO-220-7B)
M
C
S
S
G Package (SMD-8B)
P Package (DIP-8B)
1
2
3
4
Q
Q
CONTROLLED
GATE DRIVER
CURRENT LIMIT
COMPARATOR
TURN-ON
BLANKING
+
-
LEADING
EDGE
TOP232-234
8
7
5
S
S
D
7 D
5 F
4 S
3 M
1 C
SOURCE (S)
DRAIN (D)
PI-2501-031901
PI-2535-083099
7/01
B
3