Datasheet LT8705 (Analog Devices) - 13
| Fabricante | Analog Devices |
| Descripción | 80V VIN and VOUT Synchronous 4-Switch Buck-Boost DC/DC Controller |
| Páginas / Página | 44 / 13 — block DiagraM. Figure 1. Block Diagram |
| Formato / tamaño de archivo | PDF / 508 Kb |
| Idioma del documento | Inglés |
block DiagraM. Figure 1. Block Diagram
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LT8705
block DiagraM
VIN RSENSE1 RSENSE CSN CSP SWEN D BOOST1 B1 + TG1 CB1 D1 CSNIN M1 – (OPT) + A8 SW1 A7 A5 – CSPIN + BUCK M2 – LOGIC GATEVCC VIN BG1 IMON_IN GND MODE BOOST CAPACITOR CHARGE CONTROL CLKOUT BG2 SYNC M3 OSC SW2 BOOST D2 LOGIC (OPT) TG2 RT M4 + CB2 A9 BOOST2 – DB2 2.5V CSPOUT + UV_INTVCC OT OI_IN OI_OUT A6 RSENSE2 CSNOUT – VOUT STARTUP – SS IMON_OUT AND FAULT LOGIC FAULT_INT EA1 + UV_LDO33 UV_VIN UV_GATEVCC 1.208V + RSHDN1 SHDN EA2 + VIN – IMON_IN RSHDN2 RFBIN1 FBIN 1.234V – + EA3 RFBIN2 6.4V + – 1.205V LDO 3.3V EXTVCC REG LDO – VIN REG + 1.207V 6.35V EN EN 6.35V INTERNAL EA4 RFBOUT1 LDO LDO SUPPLY2 FBOUT REG REG – INTVCC INTERNAL RFBOUT2 VC SUPPLY1 LDO33 SRVO_IOUT SRVO_IIN SRVO_FBIN SRVO_FBOUT 8705 F01
Figure 1. Block Diagram
8705ff For more information www.linear.com/LT8705 13 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
block DiagraM
VIN RSENSE1 RSENSE CSN CSP SWEN D BOOST1 B1 + TG1 CB1 D1 CSNIN M1 – (OPT) + A8 SW1 A7 A5 – CSPIN + BUCK M2 – LOGIC GATEVCC VIN BG1 IMON_IN GND MODE BOOST CAPACITOR CHARGE CONTROL CLKOUT BG2 SYNC M3 OSC SW2 BOOST D2 LOGIC (OPT) TG2 RT M4 + CB2 A9 BOOST2 – DB2 2.5V CSPOUT + UV_INTVCC OT OI_IN OI_OUT A6 RSENSE2 CSNOUT – VOUT STARTUP – SS IMON_OUT AND FAULT LOGIC FAULT_INT EA1 + UV_LDO33 UV_VIN UV_GATEVCC 1.208V + RSHDN1 SHDN EA2 + VIN – IMON_IN RSHDN2 RFBIN1 FBIN 1.234V – + EA3 RFBIN2 6.4V + – 1.205V LDO 3.3V EXTVCC REG LDO – VIN REG + 1.207V 6.35V EN EN 6.35V INTERNAL EA4 RFBOUT1 LDO LDO SUPPLY2 FBOUT REG REG – INTVCC INTERNAL RFBOUT2 VC SUPPLY1 LDO33 SRVO_IOUT SRVO_IIN SRVO_FBIN SRVO_FBOUT 8705 F01
Figure 1. Block Diagram
8705ff For more information www.linear.com/LT8705 13 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts