Datasheet LT1725 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | General Purpose Isolated Flyback Controller |
| Pages / Page | 28 / 7 — PI FU CTIO S ENDLY (Pin 13):. VCC (Pin 15):. GATE (Pin 16):. tON (Pin … |
| File Format / Size | PDF / 265 Kb |
| Document Language | English |
PI FU CTIO S ENDLY (Pin 13):. VCC (Pin 15):. GATE (Pin 16):. tON (Pin 14):. BLOCK DIAGRA
Model Line for this Datasheet
Text Version of Document
LT1725
U U U PI FU CTIO S ENDLY (Pin 13):
Pin for external programming resistor to
VCC (Pin 15):
Supply voltage for the LT1725. Bypass this set enable delay time. See Applications Information for pin to ground with 1µF or more. details.
GATE (Pin 16):
This is the gate drive to the external power
tON (Pin 14):
Pin for external programming resistor to set MOSFET switch and has large dynamic currents flowing switch minimum on time. See Applications Information through it. Keep the trace to the MOSFET as short as for details. possible to minimize electromagnetic radiation and volt- age spikes. A series resistance of 5Ω or more may help to dampen ringing in less than ideal layouts.
W BLOCK DIAGRA
VCC 3VOUT UVLO BIAS 3V REG (INTERNAL) t MINENAB ENDLY ON OSCAP GATE MOSFET OSC LOGIC DRIVER PGND ISENSE COMP IAMP SGND FB LOAD FDBK SOFT-START COMPENSATION 1725 BD VC SFST ROCMP RCMPC 1725fa 7
U U U PI FU CTIO S ENDLY (Pin 13):
Pin for external programming resistor to
VCC (Pin 15):
Supply voltage for the LT1725. Bypass this set enable delay time. See Applications Information for pin to ground with 1µF or more. details.
GATE (Pin 16):
This is the gate drive to the external power
tON (Pin 14):
Pin for external programming resistor to set MOSFET switch and has large dynamic currents flowing switch minimum on time. See Applications Information through it. Keep the trace to the MOSFET as short as for details. possible to minimize electromagnetic radiation and volt- age spikes. A series resistance of 5Ω or more may help to dampen ringing in less than ideal layouts.
W BLOCK DIAGRA
VCC 3VOUT UVLO BIAS 3V REG (INTERNAL) t MINENAB ENDLY ON OSCAP GATE MOSFET OSC LOGIC DRIVER PGND ISENSE COMP IAMP SGND FB LOAD FDBK SOFT-START COMPENSATION 1725 BD VC SFST ROCMP RCMPC 1725fa 7
