IC SW PWM DC-DC 48VDC 12W 8SMD

TOP414GN

Manufacturer Part NumberTOP414GN
DescriptionIC SW PWM DC-DC 48VDC 12W 8SMD
ManufacturerPower Integrations
SeriesTOPSwitch®
TypeStep-Down (Buck), Step-Up (Boost), Flyback, Forward Converter
TOP414GN datasheet
 

Specifications of TOP414GN

Internal Switch(s)YesSynchronous RectifierNo
Number Of Outputs1Frequency - Switching120kHz
Operating Temperature-40°C ~ 125°CMounting TypeSurface Mount
Package / Case8-SMD Gull WingOutput Voltage5.8 V
Input / Supply Voltage (max)265 VACInput / Supply Voltage (min)85 VAC
Duty Cycle (max)70 %Switching Frequency120 KHz
Supply Current1.4 mAOperating Temperature Range- 40 C to + 150 C
Mounting StyleSMD/SMTLead Free Status / RoHS StatusLead free / RoHS Compliant
Current - Output-Voltage - Output-
Voltage - Input-Power - Output-
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TOP412/414
V C
CONTROL
Z C
SHUNT REGULATOR/
ERROR AMPLIFIER
-
+
5.7 V
I FB
OSCILLATOR
D MAX
CLOCK
SAW
R E
Figure 2. Functional Block Diagram.
Pin Functional Description
DRAIN Pin:
Output MOSFET drain connection. Provides internal bias
current during start-up operation via an internal switched high-
voltage current source. Internal current sense point.
CONTROL Pin:
Error amplifier and feedback current input pin for duty cycle
control. Internal shunt regulator connection to provide internal
bias current during normal operation. Trigger input for latching
shutdown. It is also used as the supply bypass and auto-restart/
compensation capacitor connection point.
SOURCE Pin:
Output MOSFET source connection. Primary-side circuit
common, power return, and reference point.
2
A
4/99
0
INTERNAL
SUPPLY
1
SHUTDOWN/
AUTO-RESTART
+
÷ 8
5.7 V
-
4.7 V
POWER-UP
RESET
EXTERNALLY
R
Q
TRIGGERED
SHUTDOWN
S
Q
THERMAL
SHUTDOWN
-
S
Q
+
R
Q
PWM
COMPARATOR
CONTROL
Figure 3. Pin Configuration.
+
-
V I
LIMIT
CONTROLLED
TURN-ON
GATE
DRIVER
LEADING
EDGE
BLANKING
MINIMUM
ON-TIME
DELAY
SOURCE
1
SOURCE (HV RTN)
8
SOURCE
2
7
SOURCE (HV RTN)
SOURCE
SOURCE (HV RTN)
3
6
4
5
DRAIN
G Package (SMD-8)
DRAIN
SOURCE
PI-1746-011796
PI-2208-120798