Datasheet LT8711 (Analog Devices) - 9
| Hersteller | Analog Devices |
| Beschreibung | Micropower Synchronous Multitopology Controller with 42V Input Capability |
| Seiten / Seite | 38 / 9 — BLOCK DIAGRAM |
| Revision | A |
| Dateiformat / Größe | PDF / 1.1 Mb |
| Dokumentensprache | Englisch |
BLOCK DIAGRAM
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Textversion des Dokuments
LT8711
BLOCK DIAGRAM
CINTVEE VIN CIN VIN BIAS UVLO LDO INTVEE BIAS REV DRIVER LEVEL TG M2 IREC × + COMP SHIFT PFET BUCK/ZETA RSENSE L1 RSENSE OPMODE MODE BOOST/SEPIC CURRENT – LOGIC INTV V SENSE CC OUT DETECTION BUCK-BOOST PROCESSOR I DRIVER SW × RSENSE BG M1 NFET IS CS + CSP A1 – CSN + ISP A2 – ISN RFB1 R + FB IN1 EN/FBIN – C 0.88V + R OUT FB2 SS_L 1.35V – RIN2 + DIE UVLO TEMP D1 – 165°C D2 LDO LOGIC Q EXTVCC S R VOUT 1.215V PWM W3 W4 REF START-UP DISABLE COMP I DRIVER S AND + – FAULT CINTVCC LDO LOGIC INTVCC SYNC SYNC RAMP BLOCK ADJUSTABLE GENERATOR RT OSCILLATOR CLK D6 D4 – EN/FBIN + RT EA2 EA1 + 1.2V – 0.8V QUICK DISCHARGE 410k R CHARGE + 85mV SS_L Q1 – PNP SS VC 8711 BD CSS CC CF RC Rev A For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Start-Up and Fault Sequence Operation Applications Information Appendix Typical Applications Package Description Typical Application Related Parts
BLOCK DIAGRAM
CINTVEE VIN CIN VIN BIAS UVLO LDO INTVEE BIAS REV DRIVER LEVEL TG M2 IREC × + COMP SHIFT PFET BUCK/ZETA RSENSE L1 RSENSE OPMODE MODE BOOST/SEPIC CURRENT – LOGIC INTV V SENSE CC OUT DETECTION BUCK-BOOST PROCESSOR I DRIVER SW × RSENSE BG M1 NFET IS CS + CSP A1 – CSN + ISP A2 – ISN RFB1 R + FB IN1 EN/FBIN – C 0.88V + R OUT FB2 SS_L 1.35V – RIN2 + DIE UVLO TEMP D1 – 165°C D2 LDO LOGIC Q EXTVCC S R VOUT 1.215V PWM W3 W4 REF START-UP DISABLE COMP I DRIVER S AND + – FAULT CINTVCC LDO LOGIC INTVCC SYNC SYNC RAMP BLOCK ADJUSTABLE GENERATOR RT OSCILLATOR CLK D6 D4 – EN/FBIN + RT EA2 EA1 + 1.2V – 0.8V QUICK DISCHARGE 410k R CHARGE + 85mV SS_L Q1 – PNP SS VC 8711 BD CSS CC CF RC Rev A For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Start-Up and Fault Sequence Operation Applications Information Appendix Typical Applications Package Description Typical Application Related Parts