LTC4215IUFD-1#PBF Linear Technology, LTC4215IUFD-1#PBF Datasheet
LTC4215IUFD-1#PBF
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LTC4215IUFD-1#PBF Summary of contents
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... Computers, Servers n Platform Management L, LT, LTC, LTM, Linear Technology, the Linear logo and Hot Swap are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patent including 7330065. TYPICAL APPLICATION 12V Application with 5A Circuit Breaker 12V 34 ...
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... TAPE AND REEL LTC4215CGN#PBF LTC4215CGN#TRPBF LTC4215IGN#PBF LTC4215IGN#TRPBF LTC4215CUFD#PBF LTC4215CUFD#TRPBF LTC4215IUFD#PBF LTC4215IUFD#TRPBF LTC4215CUFD-2#PBF LTC4215CUFD-2#TRPBF LTC4215IUFD-2#PBF LTC4215IUFD-2#TRPBF 2 (Notes 1, 2) Output Voltages GATE, GPIO ............................................ –0.3V to 24V Operating Temperature Range LTC4215C ................................................ 0°C to 70°C – 0. 0.3V LTC4215I.............................................. –40°C to 85°C DD Storage Temperature Range SSOP ................................................. –65°C to 150°C QFN .................................................... – ...
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... LTC4215CUFD-2 LTC4215CUFD-2#TR LTC4215IUFD-2 LTC4215IUFD-2#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi ...
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LTC4215/LTC4215-2 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER Comparator Inputs V ON Pin Threshold Voltage ON(TH) ΔV ON Pin Hysteresis ON(HYST Pin Input Current ON(IN) EN Input Threshold V EN(TH) EN Hysteresis ΔV ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER TUE Total Unadjusted Error FSE Full-Scale Error V Full-Scale Voltage (255 • LSB R ADIN Pin Sampling Resistance ADIN I ADIN Pin Input Current ADIN Conversion ...
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LTC4215/LTC4215-2 TYPICAL PERFORMANCE CHARACTERISTICS (V) DD 4215 G01 V vs Temperature TH(UV) 1.240 1.238 1.236 1.234 1.232 1.230 –50 – ...
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TYPICAL PERFORMANCE CHARACTERISTICS ΔV vs Temperature GATE 6 6 12V DD 5.9 5.8 5 3.3V DD 5.6 5.5 5.4 – –50 75 TEMPERATURE (°C) 4215 G09 ...
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LTC4215/LTC4215-2 PIN FUNCTIONS ADIN (QFN Package): ADC Input. A voltage between 0V and 1.235V applied to this pin is measured by the onboard ADC. Tie to ground if unused. ADR0, ADR1, ADR2 (ADR1, ADR2 Available in QFN Pack- age): Serial ...
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PIN FUNCTIONS SCL: Serial Bus Clock Input. Data at the SDA pin is shifted in or out on rising edges of SCL. This is a high impedance pin that is generally driven by an open-collector output from a master controller. ...
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LTC4215/LTC4215-2 FUNCTIONAL DIAGRAM V CC 10μ 1.235V UV – RST + 0.4V – OV (QFN) OV1 + INTV CC – 1.235V 10μ 1.235V EN (QFN) – – 1.235V UVLO1 + 2.84V ...
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OPERATION The LTC4215 is designed to turn a board’s supply voltage on and off in a controlled manner, allowing the board to be safely inserted or removed from a live backplane. During normal operation, the charge pump and gate driver ...
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LTC4215/LTC4215-2 APPLICATIONS INFORMATION A typical LTC4215 application high availability system in which a positive voltage supply is distributed to power individual cards. The device measures card voltages and currents and records past and present fault conditions. The ...
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APPLICATIONS INFORMATION dI/dt ramp stops and the inrush current follows the foldback profi shown in Figure 2. The TIMER pin integrates at 100μA during start-up and once it reaches its threshold of 1.235V, the part checks to see ...
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LTC4215/LTC4215-2 APPLICATIONS INFORMATION pin is then brought down and regulated in order to limit the current sense voltage to 75mV. When the 20μs (LTC4215) or 420μs (LTC4215-2) circuit breaker time out has expired, the overcurrent present bit C2 is set. ...
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APPLICATIONS INFORMATION If a connection sense on the plug-in card is driving the EN pin, insertion or removal of the card may cause the pin voltage to bounce. This results in clearing the fault register when the card is removed. ...
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LTC4215/LTC4215-2 APPLICATIONS INFORMATION and C2 are cleared by removal of the fault condition, the switch is allowed to turn on again. The LTC4215 will set bit D2 and turn off in the event of an overcurrent fault, preventing it from ...
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APPLICATIONS INFORMATION pin low. The undervoltage lockout circuit has a 2μs fi lter time after V drops below 2.74V. The UV pin reacts in DD 2μs to shut the GATE off, but it is recommended to add a fi lter ...
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LTC4215/LTC4215-2 APPLICATIONS INFORMATION For a start-up time of 4ms with a 2x safety margin we choose: t STARTUP = + C 2 • C • TIMER μ ...
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APPLICATIONS INFORMATION SDA SCL START ADDRESS CONDITION Digital Interface The LTC4215 communicates with a bus master using a 2 2-wire interface compatible with extension for low power devices. The ...
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LTC4215/LTC4215-2 APPLICATIONS INFORMATION ADDRESS 1 0 a4:a0 Figure 10. LTC4215 Serial Bus SDA Read Word Protocol Figure 11. LTC4215 Serial Bus SDA Alert Response Protocol The transmission is ended when the master sends a STOP condition. If ...
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APPLICATIONS INFORMATION Alert Response Protocol When any of the fault bits in FAULT register D are set, an optional bus alert is generated if the appropriate bit in the ALERT register B is also set alert is enabled, ...
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LTC4215/LTC4215-2 APPLICATIONS INFORMATION Table 1B. LTC4215 Device Addressing (GN16 Package) DEVICE DESCRIPTION ADDRESS h 7 Mass Write BE 1 Alert Response Table 2. CONTROL Register A (00h)—Read/Write BIT NAME ...
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APPLICATIONS INFORMATION Table 4. STATUS Register C (02h)—Read BIT NAME OPERATION C7 FET FET On FET Off C6 GPIO Input State of the GPIO Pin GPIO High GPIO Low C5 FET ...
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LTC4215/LTC4215-2 TYPICAL APPLICATIONS 12V Card Resident Application with a 16.6A Circuit Breaker V IN 12V SDA SCL ALERT GND BACKPLANE PLUG-IN CARD 0.0015Ω Si7880DP P6KE16A 34.8k 10Ω 4.42k 0.1μF ...
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TYPICAL APPLICATIONS 5V Backplane Resident Application with Insertion Activated Turn-On and a 5A Circuit Breaker 11. 1.74k 0.1μ 2.67k 0.005Ω FDD3706 R5 10Ω + – UV ...
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LTC4215/LTC4215-2 PACKAGE DESCRIPTION .254 MIN .0165 .0015 RECOMMENDED SOLDER PAD LAYOUT .007 – .0098 (0.178 – 0.249) .016 – .050 (0.406 – 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) 3. DRAWING NOT TO SCALE * ...
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... ON THE TOP AND BOTTOM OF PACKAGE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. UFD Package 24-Lead Plastic QFN (4mm × ...
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... Q1 S Si7880DP R5 10Ω 22nF 15k R7 –12V 30.1k – SENSE GATE SOURCE ADIN 3.57k GPIO LTC4215UFD ADR1 ADR2 GND TIMER TIMER 1μF 68nF 4215 F14 LT 0709 REV E • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2006 OUTPUT C L 1000μF –12V 4215fe ...