MAX1980ETP+T Maxim Integrated Products, MAX1980ETP+T Datasheet
MAX1980ETP+T
Specifications of MAX1980ETP+T
Related parts for MAX1980ETP+T
MAX1980ETP+T Summary of contents
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... Single-Stage (BATT to V CORE Two-Stage ( Converters CORE Servers/Desktop Computers Quick-PWM is a trademark of Maxim Integrated Products, Inc. ________________________________________________________________ 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. Quick-PWM Slave Controller with o Quick-PWM Slave Controller o Precise, Active Current Balance (± ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter ABSOLUTE MAXIMUM RATINGS V+ to GND ..............................................................-0.3V to +30V GND .....................................................-0. PGND to GND.....................................................................±0.3V TRIG, LIMIT to GND .................................................-0.3V to +6V DD ...
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Driver Disable for Multiphase DC-DC Converter ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 15V +85°C, unless otherwise noted. Typical values are at T PARAMETER SYMBOL CURRENT SENSING On-Time Adjustment Range COMP Output Current I ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 15V +85°C, unless otherwise noted. Typical values are at T PARAMETER SYMBOL LOGIC POL Logic Levels ...
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Driver Disable for Multiphase DC-DC Converter ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 15V +100°C, unless otherwise noted.) (Note 5) PARAMETER SYMBOL CURRENT SENSING On-Time Adjustment Range COMP Output Current I Current-Balance Offset ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter (Circuit of Figure 12V TWO-PHASE EFFICIENCY vs. LOAD CURRENT (V = 1.3V) OUT 100 ...
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Driver Disable for Multiphase DC-DC Converter (Circuit of Figure 12V OFFSET-VOLTAGE DEVIATION vs. COMPENSATION VOLTAGE 0.3 OUT = CM+ = CM- = CS+ = CS- 0.2 0.1 0 -0.1 -0.2 -0.3 0 ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter (Circuit of Figure 12V SWITCHING WAVEFORMS (OUT-OF-PHASE) 20A 10V 0 1µs/div A. OUTPUT VOLTAGE 1.290V (NO LOAD), OUT B. MASTER/SLAVE ...
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Driver Disable for Multiphase DC-DC Converter (Circuit of Figure 12V DYNAMIC OUTPUT-VOLTAGE TRANSITION 5.00V 0 1.30V 1.10V 0 0 40µs/div A. ZMODE = OUTPUT VOLTAGE 1.30V ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter PIN NAME 1 CM+ Master Controller’s Positive Current-Sense Input 2 CM- Master Controller’s Negative Current-Sense Input On-Time Selection Control Input. This is a three-level input used to determine the DH ...
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Driver Disable for Multiphase DC-DC Converter PIN NAME Battery Voltage Sense Connection. Connect V+ to the input power source used only for PWM one shot timing (see the On-Time Control and Active Current Balancing section). Open-Drain ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter Table 2. Component Suppliers MANUFACTURER MOSFETS Fairchild Semiconductor International Rectifier Siliconix CAPACITORS Kemet Panasonic Sanyo Taiyo Yuden INDUCTORS Coilcraft Coiltronics Sumida The trigger input’s polarity is selected by connecting POL ...
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Driver Disable for Multiphase DC-DC Converter OPTIONAL LOW-POWER LOGIC OFF 5V BIAS ON SUPPLY R22 R24 30kΩ 100kΩ R23 20kΩ R25 10kΩ C10 5V BIAS 1000pF SUPPLY 1µF 5V BIAS SUPPLY FLOAT (300kHz) (MASTER) R18 1kΩ LOW POWER C9 1000pF ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter ILIM STANDBY 0.25V V CC CONTROLLER CONTROLLER BIAS TON V+ COMP CS- GMS CS+ CM+ GMM CM- LIMIT POSITIVE CM LIMIT Figure 2. Functional Diagram In-Phase and Out-of-Phase Operation Multiphase ...
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Driver Disable for Multiphase DC-DC Converter η (V < the input currents of the overlapping IN OUT phases may sum together, increasing the total input and output ripple voltage and RMS ripple current. During in-phase operation, the input ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter Table 4. Operating Mode Truth Table DD ILIM DL High V Switching CC (> 0.25V) High GND Low (> 0.25V) GND X Low (< 0.25V Don’t Care When ...
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Driver Disable for Multiphase DC-DC Converter LIMIT(VALLEY) LOAD(MAX) 0 TIME Figure 3. “Valley” Current-Limit Threshold Point guarantee full-load operation under worst-case condi- tions. Furthermore, the inaccurate current limit mandates the use of MOSFETs and inductors with excessively ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter Undervoltage Lockout During startup, the V undervoltage lockout (UVLO) CC circuitry forces the DL and the DH gate drivers low, inhibiting switching until an adequate supply voltage is reached. Once ...
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Driver Disable for Multiphase DC-DC Converter Inductor Selection The switching frequency and operating point (% ripple or LIR) determine the inductor value as follows OUT IN OUT = ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter SLAVE CONTROLLER R C ILIM R D MAX1980 R LIMIT LIMIT C LIMIT Figure 5. Setting the Adjustable Current Limits where V , the master’s current-limit threshold, is typ- ITHM ...
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Driver Disable for Multiphase DC-DC Converter Current Limit Design Example For the typical application circuit shown in Figure 12V 1.3V 300kHz, OUT SW = 50A 0.6µ 6mΩ, R DS(ON)(MAX) ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter SLAVE CURRENT-LIMIT VOLTAGES vs. AVERAGE INDUCTOR CURRENT 160 140 120 100 AVERAGE INDUCTOR CURRENT (A) MASTER CURRENT-LIMIT VOLTAGES vs. AVERAGE INDUCTOR CURRENT 160 ...
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Driver Disable for Multiphase DC-DC Converter For in-phase operation, the maximum ESR to meet rip- ple requirements is: V RIPPLE ≤ ESR η I LIR LOAD MAX ( ) ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter If the master/slave converter is operated as the second stage of a two-stage power-conversion system, tanta- lum input capacitors are acceptable. In either configu- ration, choose an input capacitor that ...
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Driver Disable for Multiphase DC-DC Converter Current-Balance Compensation (COMP) The current-balance compensation capacitor (C integrates the difference of the master and slave cur- rent-sense signals, while the compensation resistor improves transient response by increasing the phase margin. This allows the ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter VOLTAGE POSITIONING THE OUTPUT 1.4V 1.4V A. CONVENTIONAL CONVERTER (50mV/div) B. VOLTAGE-POSITIONED OUTPUT (50mV/div) Figure 8. Voltage Positioning the Output limit allows the use of fewer output capacitors and reduces ...
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Driver Disable for Multiphase DC-DC Converter One-Stage (Battery Input) vs. Two-Stage (5V Input) Applications The MAX1980 can be used with a direct battery con- nection (one stage) or can obtain power from a regulat supply (two-stage). Each approach ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter MAX1718 (MASTER) MASTER LM VIA TO CM+ AND VIA TO CM MASTER Figure 10. Power-Stage PC Board Layout Example 28 ______________________________________________________________________________________ MAX1980 (SLAVE) VIA TO ...
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Driver Disable for Multiphase DC-DC Converter REF (MASTER) FLOAT (300kHz) ILIM (MASTER) FB (MASTER) side MOSFET or between the inductor and the out- put filter capacitor. 8) Route high-speed switching nodes away from sen- sitive analog areas (COMP, ILIM). Make ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 30 ______________________________________________________________________________________ Package Information ...
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Driver Disable for Multiphase DC-DC Converter (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Quick-PWM Slave Controller with Package Information (continued) 31 ...
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Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 32 ______________________________________________________________________________________ Package Information (continued) ...
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... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 33 © 2002 Maxim Integrated Products ...