LTC1642ACGN#PBF Linear Technology, LTC1642ACGN#PBF Datasheet
LTC1642ACGN#PBF
Specifications of LTC1642ACGN#PBF
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LTC1642ACGN#PBF Summary of contents
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... The ON pin cycles the board power. The LTC1642A is available in the 16-pin SSOP package. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Hot Swap is a trademark of Linear Technology Corporation. ...
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LTC1642A ABSOLUTE AXI U RATI GS (Note 1) Supply Voltage (V ) .................................– 0.3V to 33V CC SENSE Pin ................................... – 0. – ON, FB, OV, COMP , COMP RESET, FAULT, COMPOUT .....................– 0.3V ...
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DC ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are unless otherwise specified. CC SYMBOL PARAMETER V Circuit Breaker Trip Voltage CB I SENSE Pin Input ...
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LTC1642A W U TYPICAL PERFOR A CE CHARACTERISTICS I Pull-Up Current vs V GATE GATE T = 25° (V) CC 1642a G23 CRWBR ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS FAULT and RESET Pull-Up Current ( 160 140 120 T = –55°C A 100 T = 25° 125° ...
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LTC1642A CTIO S CRWBR (Pin 1): Overvoltage Crowbar Circuit Timer and Trigger. This pin controls an external overvoltage crowbar circuit. A capacitor from the pin to ground sets a 9ms/µF delay after an overvoltage occurs ...
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CTIO S OV (Pin 9): Overvoltage Input. When the voltage on OV exceeds its trip point the GATE pin is pulled low immedi- ately and the CRWBR timer starts remains above its trip ...
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LTC1642A W BLOCK DIAGRA 23mV TO 53mV – – + SENSE 15 – 21V + 1.22V + OV 9 21V – 1.22V + ON 4 21V – 1.22V + V CC – ...
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U U APPLICATIO S I FOR ATIO Hot Circuit Insertion When a circuit board is inserted into a live backplane its supply bypass capacitors can draw large currents from the backplane power bus as they charge. These currents can permanently ...
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LTC1642A U U APPLICATIO S I FOR ATIO an internal servo loop adjusts the GATE pin voltage such that Q1 acts as a constant current source. The voltage limit across R2 increases as the output charges; this foldback in the ...
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U U APPLICATIO S I FOR ATIO Automatic Restart After the Circuit Breaker Opens The LTC1642A will automatically attempt to restart itself after the circuit breaker opens if the FAULT output is tied to the ON pin. The circuit is ...
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LTC1642A U U APPLICATIO S I FOR ATIO Overvoltage Protection The LTC1642A can protect a load from overvoltages by turning off the pass transistor if the supply voltage ex- ceeds an adjustable limit, and by triggering a crowbar SCR if ...
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U U APPLICATIO S I FOR ATIO Automatic Restart If there is an overvoltage, and the resistor divider feeding OV is connected to the output of the N-Channel pass transistor, the LTC1642A will automatically restart even if FAULT is not ...
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LTC1642A U U APPLICATIO S I FOR ATIO The undervoltage monitor behaves differently above its threshold when the GATE begins ramping: RESET goes high as soon as the GATE ramp begins. RESET goes low immediately if V ...
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... COMPOUT pins may be left floating. RESISTOR, R2 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. W ...
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... Single Supply from 2.5V to 16.5V, MSOP Package – 48V Supplies, Active Current Limit 3.3V, 5V, ±12V Supplies for PCI Bus, Active Current Limit LT/TP 0605 500 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1999 .045 ±.005 .150 – .165 .0250 BSC ...