Datasheet LT3791-1 (Analog Devices) - 26
| Manufacturer | Analog Devices |
| Description | 60V 4-Switch Synchronous Buck-Boost Controller |
| Pages / Page | 26 / 26 — Typical applicaTion. 2.5A Buck-Boost 36V SLA Battery Charger. relaTeD … |
| File Format / Size | PDF / 312 Kb |
| Document Language | English |
Typical applicaTion. 2.5A Buck-Boost 36V SLA Battery Charger. relaTeD parTs PART NUMBER. DESCRIPTION. COMMENTS
Model Line for this Datasheet
Text Version of Document
LT3791-1
Typical applicaTion 2.5A Buck-Boost 36V SLA Battery Charger
PVIN 9V TO 58V R + IN CIN CIN2 VIN INTV 0.003Ω CC 4.7µF 100µF 1µF 4.7µF 100V 63V D1 D2 ×2 50Ω BST2 IVINN BST1 0.1µF 470nF COUT + C TG1 OUT2 I M1 M4 VINP 0.1µF 499k 4.7µF 220µF SWI 50V 50V EN/UVLO L1 10µH ×2 BG1 OVLO M2 M3 57.6k INTVCC LT3791-1 200k SNSP 30.9k SHORT RSENSE RBAT 2.5A 0.04Ω CHARGE PWMOUT 0.004Ω SNSN TEST1 + 36V PGND SLA BATTERY IVINMON BG2 AGM TYPE ISMON 41V FLOAT SW2 44V CHARGE CHARGE CURRENT CONTROL CTRL TG2 AT 25°C CLKOUT FB SGND ISP 1µF 50Ω VREF ISN 0.1µF PWM C/10 1.00M CCM INTVCC 100k SS SYNC VC RT 20k 402k 30.1k 84.5k D1, D2: BAT46WJ 22nF 2.2k 300kHz L1: COILCRAFT SER2915L-103K M5 M1-M4: RENESAS RJK0651DPB M5: NXP NX7002AK 22nF 37911 TA03 CIN2: NIPPON CHEMI-CON EMZA630ADA101MJA0G COUT2: SUNCON 50HVT220M
relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LT3791 60V, 4-Switch, Synchronous Buck-Boost LED Driver VIN: 4.7V to 60V, VOUT Range: 1.2V to 60V, True Color PWM™, Analog, Controller ISD < 1µA, TSSOP-38E Packages LTC®3780 High Efficiency, Synchronous, 4-Switch Buck-Boost VIN: 4V to 36V, VOUT Range: 0.8V to 30V, ISD < 55µA, SSOP-24, QFN-32 Controller Packages LTC3789 High Efficiency, Synchronous, 4-Switch Buck-Boost VIN: 4V to 38V, VOUT Range: 0.8V to 38V, ISD < 40µA, 4mm × 5mm QFN-28, Controller SSOP-28 Packages LT3755/LT3755-1 High Side 60V, 1MHz LED Controller with True Color VIN: 4.5V to 40V, VOUT Range: 5V to 60V, 3000:1 True Color PWM, Analog, LT3755-2 3000:1 PWM Dimming ISD < 1µA, 3mm × 3mm QFN-16, MSOP-16E Packages LT3756/LT3756-1 High Side 100V, 1MHz LED Controller with True Color VIN: 6V to 100V, VOUT Range: 5V to 100V, 3000:1 True Color PWM, Analog, LT3756-2 3000:1 PWM Dimming ISD < 1µA, 3mm × 3mm QFN-16, MSOP-16E Packages LT3596 60V, 300mA Step-Down LED Driver VIN: 6V to 60V, VOUT Range: 5V to 55V, 10000:1 True Color PWM, Analog, ISD < 1µA, 5mm × 8mm QFN-52 Package LT3743 Synchronous Step-Down 20A LED Driver with VIN: 5.5V to 36V, VOUT Range: 5.5V to 35V, 3000:1 True Color PWM, Analog, Thee-State LED Current Control ISD < 1µA, 4mm × 5mm QFN-28, TSSOP-28E Packages 37911fb 26 LT 0517 REV B • PRINTED IN USA www.linear.com/LT3791-1 For more information www.linear.com/LT3791-1 LINEAR TECHNOLOGY CORPORATION 2012 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts
Typical applicaTion 2.5A Buck-Boost 36V SLA Battery Charger
PVIN 9V TO 58V R + IN CIN CIN2 VIN INTV 0.003Ω CC 4.7µF 100µF 1µF 4.7µF 100V 63V D1 D2 ×2 50Ω BST2 IVINN BST1 0.1µF 470nF COUT + C TG1 OUT2 I M1 M4 VINP 0.1µF 499k 4.7µF 220µF SWI 50V 50V EN/UVLO L1 10µH ×2 BG1 OVLO M2 M3 57.6k INTVCC LT3791-1 200k SNSP 30.9k SHORT RSENSE RBAT 2.5A 0.04Ω CHARGE PWMOUT 0.004Ω SNSN TEST1 + 36V PGND SLA BATTERY IVINMON BG2 AGM TYPE ISMON 41V FLOAT SW2 44V CHARGE CHARGE CURRENT CONTROL CTRL TG2 AT 25°C CLKOUT FB SGND ISP 1µF 50Ω VREF ISN 0.1µF PWM C/10 1.00M CCM INTVCC 100k SS SYNC VC RT 20k 402k 30.1k 84.5k D1, D2: BAT46WJ 22nF 2.2k 300kHz L1: COILCRAFT SER2915L-103K M5 M1-M4: RENESAS RJK0651DPB M5: NXP NX7002AK 22nF 37911 TA03 CIN2: NIPPON CHEMI-CON EMZA630ADA101MJA0G COUT2: SUNCON 50HVT220M
relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LT3791 60V, 4-Switch, Synchronous Buck-Boost LED Driver VIN: 4.7V to 60V, VOUT Range: 1.2V to 60V, True Color PWM™, Analog, Controller ISD < 1µA, TSSOP-38E Packages LTC®3780 High Efficiency, Synchronous, 4-Switch Buck-Boost VIN: 4V to 36V, VOUT Range: 0.8V to 30V, ISD < 55µA, SSOP-24, QFN-32 Controller Packages LTC3789 High Efficiency, Synchronous, 4-Switch Buck-Boost VIN: 4V to 38V, VOUT Range: 0.8V to 38V, ISD < 40µA, 4mm × 5mm QFN-28, Controller SSOP-28 Packages LT3755/LT3755-1 High Side 60V, 1MHz LED Controller with True Color VIN: 4.5V to 40V, VOUT Range: 5V to 60V, 3000:1 True Color PWM, Analog, LT3755-2 3000:1 PWM Dimming ISD < 1µA, 3mm × 3mm QFN-16, MSOP-16E Packages LT3756/LT3756-1 High Side 100V, 1MHz LED Controller with True Color VIN: 6V to 100V, VOUT Range: 5V to 100V, 3000:1 True Color PWM, Analog, LT3756-2 3000:1 PWM Dimming ISD < 1µA, 3mm × 3mm QFN-16, MSOP-16E Packages LT3596 60V, 300mA Step-Down LED Driver VIN: 6V to 60V, VOUT Range: 5V to 55V, 10000:1 True Color PWM, Analog, ISD < 1µA, 5mm × 8mm QFN-52 Package LT3743 Synchronous Step-Down 20A LED Driver with VIN: 5.5V to 36V, VOUT Range: 5.5V to 35V, 3000:1 True Color PWM, Analog, Thee-State LED Current Control ISD < 1µA, 4mm × 5mm QFN-28, TSSOP-28E Packages 37911fb 26 LT 0517 REV B • PRINTED IN USA www.linear.com/LT3791-1 For more information www.linear.com/LT3791-1 LINEAR TECHNOLOGY CORPORATION 2012 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts
