LTC2906 LINER [Linear Technology], LTC2906 Datasheet
LTC2906
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LTC2906 Summary of contents
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... The dual supply monitors have a common reset output with delay (200ms for the LTC2906 and adjustable using an external capacitor for the LTC2907). These products pro- vide a precise, space-conscious and micropower solution for supply monitoring ...
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... I V1 Input Current Input Current VADJ ADJ 2 U (Notes 1, 2) Operating Temperature Range LTC2906C/LTC2907C .............................. LTC2906I/LTC2907I ............................– 0.3V) MAX Storage Temperature Range ..................– 150 C Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART NUMBER LTC2906CDDB TOP VIEW LTC2906IDDB ...
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... In the open state, the maximum leakage current GND permissible 3.3V Threshold Voltage vs Temperature 3.12 5% 3.07 7.5% 3.02 2.97 10% 2.92 2.87 –50 – TEMPERATURE ( C) 29067 G02 LTC2906/LTC2907 = 0.55V TOL = 0V, unless otherwise noted. MIN TYP MAX –1.5 –2.1 –2.7 1.5 2.1 2.7 140 200 260 140 200 260 150 RTX 0.15 0.4 ...
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... LTC2906/LTC2907 W U TYPICAL PERFOR A CE CHARACTERISTICS Specifications are unless otherwise noted. A ADJ Threshold Voltage vs Temperature 0.505 5% 0.500 0.495 0.490 7.5% 0.485 0.480 10% 0.475 0.470 25 50 –50 – TEMPERATURE ( C) 29067 G04 Typical Transient Duration vs Comparator Overdrive (V1 ADJ 700 600 ...
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... TOL = 0.45V ADJ 3 OPEN NO PULL-UP R 2.5 2.0 – 0.5 0 –8 –7 –6 –5 –4 –3 –2 OUTPUT SOURCE CURRENT, I RST LTC2906/LTC2907 ) RST Output Voltage Low (V vs RST Pull-Down Current (I 1 0.45V 1.6 ADJ TOL = V1 1.4 NO PULL-UP R 1.2 1.0 0.8 0.6 0.4 0 ...
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... Bypass this pin to ground with a 0.1 F (or greater) capacitor. Tie to V1 when no optional power is available. RST (Pin 2/Pin 3): (LTC2906 Only) Reset Logic Output. When all voltage inputs are above the reset threshold for at least the programmed delay time, this pin pulls low. This ...
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... CC V ADJ BAND GAP REFERENCE – MAX + RESISTOR NETWORK + – THREE-STATE DECODER S1 – MAX RESISTOR + NETWORK + – THREE-STATE DECODER S1 LTC2906/LTC2907 V MAX 6 A RST 200ms V RESET PULSE MAX GENERATOR 6 A RST GND 2906 BD TOL TMR V MAX 6 A 200ms RESET PULSE GENERATOR RST ...
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... The LTC2906/LTC2907 are low power, high accuracy dual supply monitoring circuits with an adjustable input and another input with selectable threshold. Reset delay is set to a nominal of 200ms for LTC2906 and is adjustable using an external capacitor for LTC2907. The three-state input pin (S1) selects one of three possible threshold voltage levels for V1 ...
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... GND Monitor Programming Connecting S1 to either GND, or V1, or leaving it in open state selects the LTC2906/LTC2907 V1 input voltage threshold. Table 1 shows the three possible selections of V1 nominal input voltage and their corresponding S1 connection. ...
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... Reset threshold accuracy is of the utmost importance in a supply sensitive system. Ideally such a system should not reset while supply voltages are within a specified margin below the rated nominal level. Both of the LTC2906/ LTC2907 inputs have the same relative threshold accu- racy. The specification for LTC2906/LTC2907 is 1.5% of the programmed nominal input voltage (over the full operating temperature range) ...
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... MAX and/ higher voltage. For example, the rise time reduces to 3.3 s for a 150pF load capacitance, when using a 10k pull-up resistor. . MAX LTC2906/LTC2907 2.2 • R • LOAD is the on-resistance of the internal pull-down is the external load LOAD ...
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... V CC LTC2906 499 TOL P0WER S1 V ADJ GOOD LED RST SYSTEM RST GND RESET 3.3V, 1.8V Monitor, 7.5% Tolerance with an Auxiliary 5V Supply (5V Not Monitored) 3. 1.8V LTC2906 0.1 F TOL S1 V ADJ TMR 22nF SYSTEM RST GND RESET 5V 845k 0.1 F 100k 2906 TA02 5V 237k 0.1 F 100k 2907 TA03 29067f ...
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... Dual Supply Monitor for Tracked/Sequenced Supply 0 GATE 10nF IN RAMP DC/DC 2.5V FB1 FB OUT LTC2923 R FB1 R FA1 IN DC/DC 1.8V FB OUT FB2 GND 237k R FB2 R FA2 100k LTC2906/LTC2907 1V 86.6k 100k 0.1 F 2907 TA04 5V 0.1 F 2906 TA05 SYSTEM 0 LTC2907 RST TOL V TMR ADJ 22nF S1 GND 292067 TA06 29067f 13 ...
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... LTC2906/LTC2907 PACKAGE DESCRIPTIO 0.61 0.05 (2 SIDES) 0.675 0.05 2.50 0.05 1.15 0.05 PACKAGE OUTLINE 0.25 0.05 0.50 BSC 2.20 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS NOTE: 1. DRAWING CONFORMS TO VERSION (WECD-1) IN JEDEC PACKAGE OUTLINE M0-229 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5 ...
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... U TS8 Package 8-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1637) 0.65 REF 1.22 REF 1.50 – 1.75 2.80 BSC 1.4 MIN (NOTE 4) 0.65 BSC 0.80 – 0.90 1.00 MAX 0.09 – 0.20 (NOTE 3) LTC2906/LTC2907 2.90 BSC (NOTE 4) PIN ONE ID 0.22 – 0.36 8 PLCS (NOTE 3) 0.01 – 0.10 1.95 BSC TS8 TSOT-23 0802 15 29067f ...
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... LTC2906/LTC2907 U TYPICAL APPLICATIO 0.8V 49.9k V ADJ TMR 100k 22nF S1 GND RELATED PARTS PART NUMBER DESCRIPTION LTC690 5V Supply Monitor, Watchdog Timer and Battery Backup LTC694-3.3 3.3V Supply Monitor, Watchdog Timer and Battery Backup LTC699 5V Supply Monitor and Watchdog Timer LTC1232 5V Supply Monitor, Watchdog Timer and Push-Button Reset LTC1326/LTC1326-2 ...