MAX6877ETG+ Maxim Integrated Products, MAX6877ETG+ Datasheet
MAX6877ETG+
Specifications of MAX6877ETG+
Related parts for MAX6877ETG+
MAX6877ETG+ Summary of contents
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... Nominal IN_/OUT_ Range ♦ 2.7V to 5.5V Operating Voltage Range ♦ Immune to Short Voltage Transients ♦ Small 4mm x 4mm 24-Pin or 16-Pin Thin QFN Packages PART MAX6877ETG+ Ordering Information continued at end of data sheet. +Denotes lead-free package. TOP VIEW GATE2 Applications GATE1 *EXPOSED PADDLE CONNECTED TO GND ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) IN1, IN2, IN3, V ....................................................-0.3V to +6V CC ABP .....................................-0.3V to the highest of V SET1, SET2, SET3 ....................................................-0.3V to +6V GATE1, GATE2, GATE3 .........................................-0.3V to ...
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Dual-/Triple-Voltage, Power-Supply ELECTRICAL CHARACTERISTICS (continued) , IN1, IN2, or IN3 = +2.7V to +5.5V, EN/UV = MARGIN = ABP are +25°C, unless otherwise noted.) (Note 1) A PARAMETER Power-Good Threshold Hysteresis GATE_ Output High ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors EN/UV V EN_R EN/UV IN1 = 2.5V IN2 = 1.8V IN_ IN3 = 0.7V CAPACITOR- ADJUSTED SLEW RATE OUT_ t DELAY PG/RST t TIMEOUT Figure 1. Tracking Timing Diagram in Normal Mode 4 _______________________________________________________________________________________ BUS VOLTAGE MONITORED ...
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Dual-/Triple-Voltage, Power-Supply EN/UV V EN_R IN_ CAPACITOR- ADJUSTED SLEW RATE OUT_ t DELAY t PG/RST FAULT = HIGH FORCED INTO QUICK SHUTDOWN AFTER NORMAL SHUTDOWN WHEN IN1 GOES BELOW ITS SET VOLTAGE Figure 2. Tracking in Fast Shutdown Mode _______________________________________________________________________________________ ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors EN/UV V EN_R IN1 = 2.5V IN2 = 1.8V IN3 = 0.7V IN_ CAPACITOR- ADJUSTED SLEW RATE OUT_ t DELAY PG/RST Figure 3. Sequencing in Normal Mode 6 _______________________________________________________________________________________ BUS VOLTAGE MONITORED THROUGH EN/UV INPUT MONITORED THROUGH ...
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Dual-/Triple-Voltage, Power-Supply EN/UV V EN_R IN1 = 2.5V IN2 = 1.8V IN3 = 0.7V IN_ CAPACITOR- ADJUSTED SLEW RATE OUT_ t DELAY PG/RST FAULT Figure 4. Sequencing in Fast Shutdown Mode _______________________________________________________________________________________ Trackers/Sequencers/Supervisors BUS VOLTAGE MONITORED THROUGH EN/UV INPUT MONITORED ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors EN/UV V EN_R IN1 = 2.5V IN2 = 1.8V IN3 = 0.7V IN_ CAPACITOR- ADJUSTED SLEW RATE OUT_ t DELAY PG/RST = LOW *ANY POWER-DOWN CONDITION BEFORE t Figure 5. Timing Diagram (Aborted Tracking) 8 _______________________________________________________________________________________ EN/UV ...
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Dual-/Triple-Voltage, Power-Supply EN/UV BUS VOLTAGE MONITORED THROUGH EN/UV INPUT V EN_R IN1 = 2.5V IN2 = 1.8V IN3 = 0.7V IN_ CAPACITOR- ADJUSTED SLEW RATE OUT_ t DELAY PG/RST = LOW *ANY POWER-DOWN CONDITION BEFORE t Figure 6. Timing Diagram ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors EN/UV V EN_R OUT2 AND OUT3 ARE WAITING OUT1 IS SLOW OUT_ t DELAY t FAULT FAULT t AND t NOT TO SCALE FAULT RETRY OR IN_ ≥ 2.7V ALL SET_ > 0.5V AND V CC Figure ...
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Dual-/Triple-Voltage, Power-Supply = 200pF MARGIN = ABP 2.7V to 5.5V, C CC_ SLEW V SUPPLY CURRENT CC vs. INPUT VOLTAGE 1.4 1 +85°C A 1.2 1 +25° ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors = 200pF MARGIN = ABP 2.7V to 5.5V, C CC_ SLEW GATE_ VOLTAGE LOW vs. GATE SINK CURRENT 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0 ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors PIN MAX6877 MAX6878 MAX6879 1 1 — — — 16, 17, — — ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors PIN MAX6877 MAX6878 MAX6879 14 14 — — — 17 — — — — ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors IN1 MAX6877 SET1 IN2 COMP SET2 IN3 COMP SET3 V BUS COMP EN/UVLO COMP V REF MARGIN GND ______________________________________________________________________________________ V IN2 IN3 CC IN1 ABP INTERNAL V /UVLO CC RAMP GENERATOR CONTROL LOGIC TRACKING MONITORS DELAY SLEW ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors Detailed Description The MAX6877/MAX6878/MAX6879 multivoltage power trackers/sequencers/supervisors monitor up to three system voltages and provide proper power-up and power-down control for systems requiring voltage tracking or sequencing. These devices ensure con- trolled voltage tracking with a specified ...
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Dual-/Triple-Voltage, Power-Supply During ramp up OUT_ voltage is less than the ref- erence ramp voltage by more than 125mV, the control loop dynamically stops the control ramp voltage from rising until the slow OUT_ voltage catches up. If ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors V IN_ IN_ MAX6877 R1 MAX6878 MAX6879 SET_ R2 Figure 9. Setting the Undervoltage (UVLO) Thresholds voltages below the adjusted thresholds to avoid signal- ing an error. The state of PG/RST and FAULT outputs does not change ...
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Dual-/Triple-Voltage, Power-Supply During fault conditions, an internal pulldown resistor (100Ω) on OUT_ is enabled to help discharge load capacitance (100Ω is connected for fast power-down control). The MAX6877/MAX6878/MAX6879 feature up to three GATE_ outputs to drive up to three external ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors When a fault is detected, for a period of t remains off and the 100Ω pulldowns are turned on. After the t period, the device waits t RETRY retries power-up if all power-up conditions are met (see ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors IN1 IN2 IN3 V BUS ______________________________________________________________________________________ Typical Application Circuit 0.1µF 0.1µF 0.1µF IN1 IN2 IN3 GATE1 GATE2 SET1 SET2 MAX6877 SET3 EN/ LTCH/RTR ABP SLEW GND TRK/SEQ DELAY TIMEOUT 1µF OUT1 OUT2 OUT3 GATE3 OUT1 ...
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Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors Ordering Information (continued) PIN- PART TEMP RANGE PACKAGE MAX6878ETG+ -40°C to +85°C 24 Thin QFN MAX6879ETE+ -40°C to +85°C 16 Thin QFN +Denotes lead-free package. TOP VIEW GATE2 19 OUT1 20 GATE1 21 ...
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Dual-/Triple-Voltage, Power-Supply (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.) ______________________________________________________________________________________ Trackers/Sequencers/Supervisors Package Information PACKAGE OUTLINE, 12, 16, 20, 24, 28L THIN QFN, 4x4x0.8mm 1 ...
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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. 24 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Heaney ...