MAX5043ETN+ Maxim Integrated Products, MAX5043ETN+ Datasheet
MAX5043ETN+
Specifications of MAX5043ETN+
Related parts for MAX5043ETN+
MAX5043ETN+ Summary of contents
Page 1
... Distributed Power Systems with 48V Bus 42V Automotive Power Supplies Power-Supply Modules Pin Configurations appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ Reliable Single-Stage Clamped Two-Switch Power ICs for High Efficiency ♦ ...
Page 2
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller ABSOLUTE MAXIMUM RATINGS (See the Absolute Maximum Ratings Diagram below to better understand the absolute maximum ratings of the various blocks.) PWMNEG, POSINPWM, DRNH, XFRMRH, XFRMRL, SRC to NEGIN....................-0.3V to ...
Page 3
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller ELECTRICAL CHARACTERISTICS (V = 20V to 76V 18V, C POSINPWM REG15 0.22µ 10kΩ 0.22µF, V DRVDEL DRVDEL otherwise noted. Typical values are at V ...
Page 4
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller ELECTRICAL CHARACTERISTICS (continued 20V to 76V 18V, C POSINPWM REG15 0.22µ 10kΩ 0.22µF, V DRVDEL DRVDEL otherwise noted. Typical values are at ...
Page 5
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller ELECTRICAL CHARACTERISTICS (continued 20V to 76V 18V, C POSINPWM REG15 0.22µ 10kΩ 0.22µF, V DRVDEL DRVDEL otherwise noted. Typical values are at ...
Page 6
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller ELECTRICAL CHARACTERISTICS (continued 20V to 76V 18V, C POSINPWM REG15 0.22µ 10kΩ 0.22µF, V DRVDEL DRVDEL otherwise noted. Typical values are at ...
Page 7
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller (V = 20V +25°C, unless otherwise noted.) POSINPWM A HOT-SWAP UNDERVOLTAGE LOCKOUT THRESHOLD vs. TEMPERATURE RISING POSINHS FALLING POSINHS 27 26 ...
Page 8
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller (V = 20V +25°C, unless otherwise noted.) POSINPWM A MAXIMUM DUTY CYCLE vs. TEMPERATURE MEASURED AT XFRMRL 46 -50 - ...
Page 9
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller (V = 20V +25°C, unless otherwise noted.) POSINPWM A CURRENT-LIMIT THRESHOLD vs. TEMPERATURE 160 158 156 154 152 150 -50 - 100 TEMPERATURE (°C) ...
Page 10
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller PIN NAME MAX5042 MAX5043 1, 2, 14, 15 14, 15, N.C. 40, 42–45, 56 40, 42–45 RCFF 4 4 RAMP 5 5 OPTO 6 6 ...
Page 11
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller PIN NAME MAX5042 MAX5043 HSOK 26 — 27 — HSEN 28, 29 — NEGIN 30 — HSGATE 31 — HSDRAIN 32 32 CSOUT 33 33 CSP 34 34 CSN 26, ...
Page 12
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller PIN NAME MAX5042 MAX5043 47 25, 47 POSINPWM 48, 51, 54, 55 48, 51, 54, 55 DRNH 49, 50, 52, 53 49, 50, 52, 53 XFRMRH — 27 DEN — ...
Page 13
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller +V POSINPWM MAX5043 BULK STORAGE CAPACITOR PWM CIRCUIT WITH INTEGRATED FETs QL PWMNEG Figure 2. Simplified Diagram of a MAX5043-Based Isolated Power Supply Set the switching ...
Page 14
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller MAX5042 41 REG15 39 REG5 REG5 (5V) REG5 OK REG15 OK 38 REG9 3 RCFF 5V IFLT 80µA Q OVRLD 11 FLTINT 2.3V/1.6V 4 RAMP CPWM 5 OPTO 5V 32µA ...
Page 15
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller MAX5043 41 REG15 39 REG5 REG5 (5V) REG5 OK 38 REG9 3 RCFF 5V IFLT 80µA OVRLD 11 FLTINT 2.3V/1.6V 4 RAMP CPWM 5 OPTO 5V 32µA 6 CSS 7.5V ...
Page 16
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller where R is the external high-side resistor external low-side resistor the internal high-side Hi resistor (1.2MΩ, typ the internal low-side resistor Le (50kΩ, typ), ...
Page 17
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller Maximize the signal-to-noise ratio by setting the ramp peak as high as possible. Calculate the low-frequency, small-signal gain of the power stage (the gain from the inverting input of the ...
Page 18
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller I FLTINT ≅ C FLTINT where I = 80µA, FLTINT t is the desired ignore time during which current-limit sh events from the current-limit comparator are ignored. ...
Page 19
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller Determining Hot-Swap Inrush Current Calculate the hot-swap inrush current using the follow- ing formula: dV HSDRAIN = where the load capacitance, IN ...
Page 20
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller V IN+ 32V TO 72V C1 R12 220µF 200kΩ 100V 1% R22 10kΩ R13 0.68µF C13 1MΩ C25 0.22µF 100V 1µF R14 R20 C9 C12 10kΩ 10kΩ 220pF 0.1µF PWMNEG ...
Page 21
Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller TOP VIEW N.C. 1 N.C. 2 RCFF 3 RAMP 4 OPTO 5 CSS 6 BST 7 MAX5042ATN DRVIN 8 PWMPNEG ...
Page 22
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 22 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...