Datasheet LTC1922-1 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | Synchronous Phase Modulated Full-Bridge Controller |
| Pages / Page | 24 / 7 — BLOCK DIAGRA. W U. TI I G DIAGRA. NOTE: |
| File Format / Size | PDF / 316 Kb |
| Document Language | English |
BLOCK DIAGRA. W U. TI I G DIAGRA. NOTE:
Model Line for this Datasheet
Text Version of Document
LTC1922-1
W BLOCK DIAGRA
VCC VREF CT SYNC SBUS 15 11 20 1 9 UVLO 5V SHUNT REG REF AND LDO OSC 10.25V “ON” 6V “0FF” ERROR 1.2V AMPLIFIER 8 PDLY FB 6 – + 1.2V PHASE MODULATOR 50k 18 OUTA COMP 4 – PASSIVE Q DELAY + T + QB 17 OUTB 0.4V 14.9k – RAMP 2 BLANK QB R 13 OUTE SYNC V RECTIFIER REF Q S DRIVE LOGIC 12µA 12 OUTF SS 7 FAULT LOGIC + 16 OUTC – R QB 600mV ACTIVE R 5 SHUTDOWN S DELAY LEB CURRENT LIMIT 14 OUTD SLOPE COMPENSATION CT/R CS 3 BLANK + 10 ADLY 19 – 400mV 1922 • BD GND PULSE BY PULSE CURRENT LIMIT
W U W TI I G DIAGRA
ACTIVE DELAY PASSIVE DELAY OUTA OUTB OUTC OUTD RAMP COMP CURRENT DOUBLER OUTE OUTF 1922 TD
NOTE:
SHADED AREAS CORRESPOND TO POWER DELIVERY PULSES 7
W BLOCK DIAGRA
VCC VREF CT SYNC SBUS 15 11 20 1 9 UVLO 5V SHUNT REG REF AND LDO OSC 10.25V “ON” 6V “0FF” ERROR 1.2V AMPLIFIER 8 PDLY FB 6 – + 1.2V PHASE MODULATOR 50k 18 OUTA COMP 4 – PASSIVE Q DELAY + T + QB 17 OUTB 0.4V 14.9k – RAMP 2 BLANK QB R 13 OUTE SYNC V RECTIFIER REF Q S DRIVE LOGIC 12µA 12 OUTF SS 7 FAULT LOGIC + 16 OUTC – R QB 600mV ACTIVE R 5 SHUTDOWN S DELAY LEB CURRENT LIMIT 14 OUTD SLOPE COMPENSATION CT/R CS 3 BLANK + 10 ADLY 19 – 400mV 1922 • BD GND PULSE BY PULSE CURRENT LIMIT
W U W TI I G DIAGRA
ACTIVE DELAY PASSIVE DELAY OUTA OUTB OUTC OUTD RAMP COMP CURRENT DOUBLER OUTE OUTF 1922 TD
NOTE:
SHADED AREAS CORRESPOND TO POWER DELIVERY PULSES 7
