LTC4260IGN#PBF Linear Technology, LTC4260IGN#PBF Datasheet
LTC4260IGN#PBF
Specifications of LTC4260IGN#PBF
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LTC4260IGN#PBF Summary of contents
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... LTC and LT are registered trademarks of Linear Technology Corporation. Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
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LTC4260 ABSOLUTE AXI U RATI GS Supply Voltages (V ) ............................ – 0.3V to 100V DD Input Voltages SENSE ............................ V – 10V or – 0. SOURCE .......................... GATE – GATE + ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER INTV V Supply Undervoltage Lockout CC(UVL) CC INTV Internal Regulator Voltage CC Gate Drive t Turn-On Delay D ∆V External N-Channel Gate Drive GATE (V – GATE ...
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LTC4260 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER AC Parameters t Input High (ON) to GATE High PLH(GATE) Propagation Delay t Input High (OV, BD_PRST), Input Low PHL(GATE) (ON, UV) to GATE Low Propagation Delay t ...
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ELECTRICAL CHARACTERISTICS Note 3: Limits on maximum rating is defined as whichever limit occurs first. An internal clamp limits the GATE pin to a minimum of 10V above source. Driving this pin to voltages beyond the clamp may damage the ...
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LTC4260 W U TYPICAL PERFOR A CE CHARACTERISTICS TIMER Pull-Up Current vs Temperature –110 –105 –100 –95 –90 –50 – 100 TEMPERATURE (°C) 4260 G06 I Pull Up vs Temperature GATE –25 –20 –15 –10 –50 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS ADC Full-Scale Error vs Temperature (ADIN Pin –1 –2 –50 – 100 TEMPERATURE (°C) 3708 G15 CTIO S ADIN: ADC Input. ...
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LTC4260 CTIO S GPIO: General Purpose Input/Output. Open-drain logic output and logic input. Defaults to pull low to indicate power is bad. Configure according to Table 3. NC: No Connect. Unconnected pins. These pins provide ...
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CTIO AL DIAGRA – GN/UH ONLY OV – 3.5V + 1.235V RST – INTV CC + 1.235V 10µA BP BD_PRST – – 1.235V – UVLO1 ...
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LTC4260 DIAGRA SDAI/SDAO SCL t HD, STA START CONDITION U OPERATIO The Functional Diagram displays the main functional areas of this device. The LTC4260 is designed to turn a board’s supply voltage on and ...
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U U APPLICATIO S I FOR ATIO The typical LTC4260 application high availability system that uses a positive voltage supply to distribute power to individual cards. The device measures card voltages and currents and records past and ...
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LTC4260 U U APPLICATIO S I FOR ATIO V + 13V DD SLOPE = 18µA/ Figure 2. Supply Turn-On As the SOURCE voltage rises, so will the FB pin which is monitoring it. If the voltage ...
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U U APPLICATIO S I FOR ATIO V OUT 50V/DIV I OUT 5A/DIV ∆V GATE 10V/DIV TIMER 2V/DIV 100µs/DIV Figure 3. Short-Circuit Waveforms During a short circuit, if the current limit sense voltage exceeds 150mV, the active current limit enters ...
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LTC4260 U U APPLICATIO S I FOR ATIO OUT 23 LTC4260 SOURCE 10µA BD_PRST BD_PRST – 1.235V GND 6 MOTHERBOARD Figure 4. Plug-In Card Insertion/Removal Power Bad Fault A power bad fault will be reported if the ...
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U U APPLICATIO S I FOR ATIO Gate Pin Voltage A curve of gate drive shown in the Typical DD Performance curves. At the minimum input supply volt- age of 8.5V, the minimum gate drive voltage is ...
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LTC4260 U U APPLICATIO S I FOR ATIO ≅ DISS CHARGUP The SOA (safe operating area) curves of candidate FETs must be evaluated to ensure that the ...
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U U APPLICATIO S I FOR ATIO Digital Interface The LTC4260 communicates with a bus master using a 2-wire interface compatible with the I 2 SMBus extension for low power devices. The LTC4260 is a read-write slave ...
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LTC4260 U U APPLICATIO S I FOR ATIO address with the R/W bit now set to one. The LTC4260 acknowledges and sends the contents of the requested register. The transmission is ended when the master sends a STOP condition. If ...
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U U APPLICATIO S I FOR ATIO S ADDRESS 1 0 a4:a0 S ADDRESS 1 0 a4:a0 S ADDRESS 1 0 a4:a0 Figure 10. LTC4260 Serial Bus SDA Read Word Protocol Figure 11. LTC4260 Serial Bus SDA Alert Response Protocol ...
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LTC4260 U U APPLICATIO S I FOR ATIO 2 Table 1. LTC4260 I C Device Addressing HEX DEVICE DESCRIPTION ADDRESS h 6 Mass Write BE 1 Alert Response ...
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U U APPLICATIO S I FOR ATIO Table 2. LTC4260 Register Addresses and Contents REGISTER REGISTER ADDRESS* NAME READ/WRITE 00h CONTROL (A) 01h ALERT (B) 02h STATUS (C) 03h FAULT (D) 04h SENSE (E) 05h SOURCE (F) 06h, 07h ADIN ...
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LTC4260 U U APPLICATIO S I FOR ATIO Table 4. ALERT Register B (01h)—Read/Write BIT NAME B7 Reserved B6 GPIO Output B5 FET Short Alert B4 BD_PRST State Change Alert B3 Power Bad Alert B2 Overcurrent Alert B1 Undervoltage Alert ...
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U U APPLICATIO S I FOR ATIO Table 6. FAULT Register D (03h)—Read/Write BIT NAME D7:6 Reserved D5 FET Short Fault Occurred D4 Board Present Changes State D3 Power Bad Fault Occurred D2 Overcurrent Fault Occurred D1 Undervoltage Fault Occurred ...
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LTC4260 U U APPLICATIO S I FOR ATIO V IN 12V SDA SCL ALERT GND BACKPLANE PLUG-IN CARD GND R10 3.4k 3.3V MOC207 SDA MOC207 R13 3.4k SCL MOC207 V IN –48V *MAXIMUM LOAD ON INTV BACKPLANE PLUG-IN CARD 24 ...
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PACKAGE DESCRIPTIO .254 MIN .0165 ± .0015 RECOMMENDED SOLDER PAD LAYOUT .0075 – .0098 (0.19 – 0.25) .016 – .050 (0.406 – 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) 3. DRAWING NOT TO SCALE *DIMENSION ...
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LTC4260 PACKAGE DESCRIPTIO .030 ±.005 .050 BSC TYP N .420 MIN RECOMMENDED SOLDER PAD LAYOUT .291 – .299 (7.391 – 7.595) NOTE 4 .010 – .029 × 45° (0.254 – 0.737) .005 (0.127) RAD MIN .009 – ...
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... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights Package 32-Lead Plastic QFN (5mm × ...
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... Output Voltage: 1.2V to 12V, Equal Load Sharing External N-Channel MOSFETs Replace ORing Diodes, 1.2V to 20V 8-Pin DFN and SO Package www.linear.com ● V OUT 48V 43.5k 3.57k 100k LOAD 1µF 68nF 4260 TA03 BACKPLANE PLUG-IN CARD 2 C LT/LT 1105 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2004 4260fa ...