Datasheet LT3751 (Analog Devices) - 29
| Hersteller | Analog Devices |
| Beschreibung | High Voltage Capacitor Charger Controller with Regulation |
| Seiten / Seite | 34 / 29 — TYPICAL APPLICATIONS. Isolated 282V Voltage Regulator |
| Dateiformat / Größe | PDF / 651 Kb |
| Dokumentensprache | Englisch |
TYPICAL APPLICATIONS. Isolated 282V Voltage Regulator
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LT3751
TYPICAL APPLICATIONS Isolated 282V Voltage Regulator DANGER HIGH VOLTAGE! OPERATION BY HIGH VOLTAGE TRAINED PERSONNEL ONLY
D2 R2, 10Ω ISOLATION BOUNDARY T1 • Npb VTRANS V F1, 2A D5 TRANS VOUT 100V TO + 282V 200VDC R1 C3 R3 C4 225mA 49.9k 22µF 210k 1µF • + C6 C7 M1 ×2 ×2 R4 D3 Np Ns 0.1µF 400µF RVTRANS 105k • OFF ON CHARGE RDCM C1 CLAMP R5 R16 100pF 210k D4 249k V LT3751 CC RVOUT Nsb C1, C8: 16V COG CERAMIC C2 D1 TO DONE HVGATE R15 U2 C2: 16V X5R OR X74 CERAMIC 1µF M2 • D6 R17 5.11Ω C3: 350V ELECTROLYTIC MICRO 221k C5 FAULT V LVGATE V IN COMP C4: 250V X5R OR X7R CERAMIC CC C8 0.01µF R9, 2.7M C5, C6, C11, C12: 630V X5R OR X7R CERAMIC C9 22nF UVLO1 CSP LT4430 C7: 350V ELECTROLYTIC R19 V 3.3µF TRANS C9, C10: 25V X5R OR X7R CERAMIC R10, 4.3M 3.16k OVLO1 R6 GND FB F1: 250V, 2A FUSE 40mΩ R11, 84.5k R1: 2010 RESISTOR, 1% C10 R18 UVLO2 CSN R2, R3, R6, R16, R17: 1206 RESISTORS, 1% 0.47µF 1k VCC R4, R5: TWO 1206 RESISTORS IN SERIES, 1% R12, 442k OC OVLO2 FB R7 THRU R12, R15 THRU R20: 0805 RESISTORS, 1% U1 D7 V D1: 12V ZENER R7 CC OPTO GND RBG D2: VISHAY MURS140 475Ω R20 3751 TA06a D3: VISHAY P6KE200A R8 274Ω D4: VISHAY MURS160 2.49k D5: STMICROELECTRONICS STTH112A D6: VISHAY BAT54 T1: TDK SRW24LQ D7: NXP SEMICONDUCTORS BAS516 (Np:Ns:Npb:Nsb = 1:2:0.08:0.08) M1: VISHAY IRF830 U1: NEC PS2801-1 M2: STMICROELECTRONICS STB11NM60FD U2: LINEAR TECHNOLOGY LT4430 4.7nF Y RATED
Steady-State Operation with Load Regulation Efficiency 7.1mA Load Current
0.50 100 63W OUTPUT 48W OUTPUT 95 25W OUTPUT V 0.25 DRAIN 100V/DIV 90 0 85 IPRIMARY 2A/DIV EFFICIENCY (%) 80 3751 TA06d 20µs/DIV –0.25 OUTPUT VOLTAGE ERROR (V) 75
Steady-State Operation with
–0.50 70
225mA Load Current
0 50 100 150 200 250 100 120 140 160 180 200 IOUT (mA) INPUT VOLTAGE (V) 3751 TA06c 3751 TA06b VDRAIN 100V/DIV IPRIMARY 2A/DIV 3751 TA06e 20µs/DIV 3751fd For more information www.linear.com/LT3751 29 Document Outline Features Applications Typical Application Description 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
TYPICAL APPLICATIONS Isolated 282V Voltage Regulator DANGER HIGH VOLTAGE! OPERATION BY HIGH VOLTAGE TRAINED PERSONNEL ONLY
D2 R2, 10Ω ISOLATION BOUNDARY T1 • Npb VTRANS V F1, 2A D5 TRANS VOUT 100V TO + 282V 200VDC R1 C3 R3 C4 225mA 49.9k 22µF 210k 1µF • + C6 C7 M1 ×2 ×2 R4 D3 Np Ns 0.1µF 400µF RVTRANS 105k • OFF ON CHARGE RDCM C1 CLAMP R5 R16 100pF 210k D4 249k V LT3751 CC RVOUT Nsb C1, C8: 16V COG CERAMIC C2 D1 TO DONE HVGATE R15 U2 C2: 16V X5R OR X74 CERAMIC 1µF M2 • D6 R17 5.11Ω C3: 350V ELECTROLYTIC MICRO 221k C5 FAULT V LVGATE V IN COMP C4: 250V X5R OR X7R CERAMIC CC C8 0.01µF R9, 2.7M C5, C6, C11, C12: 630V X5R OR X7R CERAMIC C9 22nF UVLO1 CSP LT4430 C7: 350V ELECTROLYTIC R19 V 3.3µF TRANS C9, C10: 25V X5R OR X7R CERAMIC R10, 4.3M 3.16k OVLO1 R6 GND FB F1: 250V, 2A FUSE 40mΩ R11, 84.5k R1: 2010 RESISTOR, 1% C10 R18 UVLO2 CSN R2, R3, R6, R16, R17: 1206 RESISTORS, 1% 0.47µF 1k VCC R4, R5: TWO 1206 RESISTORS IN SERIES, 1% R12, 442k OC OVLO2 FB R7 THRU R12, R15 THRU R20: 0805 RESISTORS, 1% U1 D7 V D1: 12V ZENER R7 CC OPTO GND RBG D2: VISHAY MURS140 475Ω R20 3751 TA06a D3: VISHAY P6KE200A R8 274Ω D4: VISHAY MURS160 2.49k D5: STMICROELECTRONICS STTH112A D6: VISHAY BAT54 T1: TDK SRW24LQ D7: NXP SEMICONDUCTORS BAS516 (Np:Ns:Npb:Nsb = 1:2:0.08:0.08) M1: VISHAY IRF830 U1: NEC PS2801-1 M2: STMICROELECTRONICS STB11NM60FD U2: LINEAR TECHNOLOGY LT4430 4.7nF Y RATED
Steady-State Operation with Load Regulation Efficiency 7.1mA Load Current
0.50 100 63W OUTPUT 48W OUTPUT 95 25W OUTPUT V 0.25 DRAIN 100V/DIV 90 0 85 IPRIMARY 2A/DIV EFFICIENCY (%) 80 3751 TA06d 20µs/DIV –0.25 OUTPUT VOLTAGE ERROR (V) 75
Steady-State Operation with
–0.50 70
225mA Load Current
0 50 100 150 200 250 100 120 140 160 180 200 IOUT (mA) INPUT VOLTAGE (V) 3751 TA06c 3751 TA06b VDRAIN 100V/DIV IPRIMARY 2A/DIV 3751 TA06e 20µs/DIV 3751fd For more information www.linear.com/LT3751 29 Document Outline Features Applications Typical Application Description 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