TOP234GN Power Integrations, TOP234GN Datasheet - Page 3

IC OFFLINE SWIT OVP UVLO 8SMD

TOP234GN

Manufacturer Part Number
TOP234GN
Description
IC OFFLINE SWIT OVP UVLO 8SMD
Manufacturer
Power Integrations
Series
TOPSwitch®-FXr
Type
Off Line Switcherr
Datasheet

Specifications of TOP234GN

Output Isolation
Isolated
Frequency Range
66 ~ 132kHz
Voltage - Output
700V
Power (watts)
30W
Operating Temperature
-40°C ~ 150°C
Package / Case
8-SMD Gull Wing, 7 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
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TOP234GN
Manufacturer:
PowerInt
Quantity:
350
Company:
Part Number:
TOP234GN,,5800,SOP-7,POWER,,,2020+
0
Company:
Part Number:
TOP234GN-TL
Manufacturer:
POWER
Quantity:
10 000
Company:
Part Number:
TOP234GN-TL,,12000,SOP-7,PI,,,2020+
0
Company:
Part Number:
TOP234GN-TL,,2500,SOP-7,POWER,,,2020+
0
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