ltc3588-2 Linear Technology Corporation, ltc3588-2 Datasheet
ltc3588-2
Related parts for ltc3588-2
ltc3588-2 Summary of contents
Page 1
... An input protective shunt set at 20V provides overvoltage protection. L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. LTC3588-2 5.0V Regulator Start-Up Profi 22μ ...
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... LTC3588-2 ABSOLUTE MAXIMUM RATINGS V IN Low Impedance Source ....................... –0.3V to 18V* Current Fed ...................................... 25mA SW PZ1, PZ2 ........................................................... D0, D1 .............. –0.3V to [Lesser of (V CAP ......................[Higher of –0. ....................–0.3V to [Lesser of (V IN2 * V has an internal 20V clamp IN † For t < 1ms and Duty Cycle < 1%, ...
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... Note 3: The junction temperature (T temperature ( °C) and power dissipation ( the formula thermal impedance. Note 4: Dynamic supply current is higher due to gate charge being delivered at the switching frequency. LTC3588-2 MIN TYP MAX UNITS l 18.0 830 1400 nA 1500 2500 nA ...
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... LTC3588-2 TYPICAL PERFORMANCE CHARACTERISTICS Input I in UVLO 1800 125°C 1600 1400 1200 85°C 1000 25°C 800 –40°C 600 400 200 (V) IN 35882 G01 UVLO Falling vs Temperature 14.4 14.2 14.0 13.8 13.6 –50 – 100 TEMPERATURE (°C) ...
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... V ( PMOS/NMOS DS(ON) vs Temperature 2.0 1.8 NMOS 1.6 1.4 PMOS 1.2 1.0 0.8 125 –55 –35 – TEMPERATURE (°C) LTC3588-2 5.0V Output vs Temperature 5.10 SLEEP THRESHOLD 5.00 WAKE-UP THRESHOLD 4.90 4.80 4.70 PGOOD FALLING 4.60 4.50 100 125 –50 – TEMPERATURE (°C) 35882 G11 I vs Temperature VOUT 160 V OUT 140 V = 4.5V OUT ...
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... LTC3588-2 TYPICAL PERFORMANCE CHARACTERISTICS Effi ciency 22μH LOAD 100 V = 15V 5.0V OUT 4.5V OUT V = 4.1V OUT 3.45V OUT 0 1μ 10μ 100μ 1m 10m 100m LOAD CURRENT (A) 35881 G19 Effi ciency 100μH LOAD 100 ...
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... The logic high is OUT referenced to the V GND (Exposed Pad Pin 11): Ground. The Exposed Pad should be connected to a continuous ground plane on the second layer of the printed circuit board by several vias directly under the LTC3588-2. 20V INTERNAL RAIL GENERATION BUCK UVLO ...
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... Internal Bridge Rectifi er The LTC3588-2 has an internal full-wave bridge rectifi er accessible via the differential PZ1 and PZ2 inputs that rectifi inputs such as those from a piezoelectric element. The rectifi ed output is stored on a capacitor at ...
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... Normally both synchronous switches would turn off and the current in the inductor would freewheel to zero through the NMOS body diode. The LTC3588-2 keeps the NMOS switch on during this time to prevent the conduction loss that would occur in the diode if the NMOS were off ...
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... The LTC3588-2 is well-suited to a piezoelectric energy harvesting application. The 20V input protective shunt can accommodate a variety of piezoelectric elements. The low quiescent current of the LTC3588-2 enables effi cient energy accumulation from piezoelectric elements which can have short-circuit currents on the order of tens of microamps. Piezoelectric elements can be obtained from manufacturers listed in Table 2 ...
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... Figure 5. 5V Piezoelectric Energy Harvester Powering a Microprocessor with a Wireless Transmitter and 50mA Load Step Response The LTC3588-2 will gather energy and convert use- able output voltage to power microprocessors, wireless sensors, and wireless transmission components. Such a wireless sensor application may require much more peak power than a piezoelectric element can produce ...
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... Additional Applications with Piezo Inputs BUCK The versatile LTC3588-2 can be used in a variety of con- fi gurations. Figure 6 shows a single piezo source powering two LTC3588-2s simultaneously, providing capability for multiple rail systems. As the piezo provides input power ...
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... D1 6V GND Alternate Power Sources The LTC3588-2 is not limited to use with piezoelectric ele- ments but can accommodate a wide variety of input sources depending on the type of ambient energy available. Figure 7 shows the LTC3588-2 internal bridge rectifi er connected to the AC line in series with four 150k current limiting resistors ...
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... Figure 9 shows the LTC3588-2 powered by a 48V com- munications line. In this example, 1mA is the maximum current that is allowed to be drawn. The 28k current limiting resistor sets this current as the LTC3588-2 will shunt V at 20V. The advantage of this scheme is that the current at the output is multiplied by the ratio of V loss in the buck converter) ...
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... DETAIL “A” MAX SEATING PLANE 0.17 – 0.27 (.007 – .011) 0.50 TYP (.0197) BSC LTC3588-2 0.497 ± 0.076 (.0196 ± .003 REF 3.00 ± 0.102 (.118 ± .004) (NOTE 4) 0.86 (.034) REF 0.1016 ± 0.0508 (.004 ± ...
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... LTC3588-2 TYPICAL APPLICATION Piezoelectric Shunt Charger for Small Li-Ion Cells or Thin Film Batteries ADVANCED CERAMETRICS PFCB-W14 PZ1 PZ2 1μF V LTC3588-2 OUT 6.3V CAP 22μF 25V V IN2 D1 PGOOD 4.7μF D0 6.3V GND RELATED PARTS PART NUMBER DESCRIPTION LT1389 Nanopower Precision Shunt Voltage Reference ...