MIC2026 Micrel Semiconductor, MIC2026 Datasheet
MIC2026
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MIC2026 Summary of contents
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... Both devices employ soft-start circuitry that minimizes inrush current in applications where highly capacitive loads are employed. A fault status output flag is asserted during overcurrent and thermal shutdown conditions. Transient faults are internally filtered. The MIC2026/76 are available in 8-pin DIP or 8-lead SOP. Typical Application V CONT. Logic Controller VIN ...
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... ENA 2 FLGA 3 FLGB 4 ENB 5 OUTB 6 GND OUTA MIC2026/2076 Enable Temperature Range Active High – +85 C Active Low – +85 C Active High – +85 C Active Low – +85 C Active High – +85 C Active Low – +85 C Active High – ...
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... ........... Internally Limited J ) .......................................................... 160 C/W Min Typ Max 0.75 0.75 100 160 100 160 1.7 2.4 0.8 1.45 250 –1 0. 140 100 160 10 50 1.3 1.15 4.9 35 100 32 100 0.5 0.9 1.25 1.0 1.25 20 1.5 3 TBD 3 2.2 2.4 2.7 2.0 2.15 2.5 MIC2026/2076 Micrel Units ...
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... If there is a fault on one channel, that channel will shut down when the die reaches approximately 140 C. If the die reaches approximately 160 C, both channels will shut down, even if neither channel is in current limit. Test Circuit Timing Diagrams V OUT OUT OUT MIC2026/2076 Condition I = 10mA 10mA 3. ...
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... 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE (V) Fall Time vs. Temperature 400 300 V = 3. 200 L 100 0 -40 - 100 TEMPERATURE ( C) Fall Time vs. Input Voltage 300 250 200 150 100 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE (V) MIC2026/2076 ...
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... TEMPERATURE ( C) Enable Threshold vs. Input Voltage 2.5 2.0 V RISING EN 1.5 V FALLING 1 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE (V) MIC2026/2076 Flag Delay vs. Temperature 3. -40 - 100 TEMPERATURE ( C) Flag Delay vs. Input Voltage ...
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... 147 Micrel UVLO—V Falling IN (MIC2026-1) 2. TIME (100ms/div.) Turn-On (MIC2026- 147 140mA TIME (500 s/div.) Enabled Into Short (MIC2026-1) 3.1ms ( 700mA TIME (500 s/div.) MIC2026/2076 ...
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... MIC2026/2076 Inrush Current Response (MIC2026- 110 210 310 TIME (1ms/div.) Current-Limit Response (Stepped Short—MIC2026- 800mA TIME (1ms/div.) Independent Thermal Shutdown (MIC2026- Load OUTA (No Thermal Shutdown) Thermal Shutdown TIME (100ms/div.) MIC2026/2076 ...
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... Reset Thermal L Shutdown TIME (100ms/div.) Independent Thermal Shutdown (MIC2076- Load No L Removed Load No Thermal Shutdown on Channel B Output Reset Thermal Shutdown ENB ENA TIME (2.5s/div ENB = 0V ENA Micrel MIC2026/2076 ...
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... CHARGE PUMP GND The MIC2026 will automatically reset its output when the die temperature cools down to 120 C. The MIC2026 output and FLG signal will continue to cycle on and off until the device is disabled or the fault is removed. Figure 2 depicts typical timing. Depending on PCB layout, package, ambient temperature, ...
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... Once this occurs the device limits current to less than the short-circuit current limit specification. Current-Limit Response—Ramped Load The MIC2026/76 current-limit profile exhibits a small foldback effect of about 200mA. Once this current-limit threshold is exceeded the device switches into a constant current mode. ...
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... Receptacle GND MIC2026/2076 Universal Serial Bus (USB) Power Distribution The MIC2026/76 is ideally suited for USB (Universal Serial Bus) power distribution applications. The USB specification and IN defines power distribution for USB host systems such as PCs and USB hubs. Hubs can either be self-powered or bus- powered (that is, powered from the bus) ...
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... GND V BUS OUTB D+ USB D– Port 2 47µF GND Data (Two Pair) to USB Controller Ferrite Beads V BUS D+ USB D– Port 1 47µF OUTA GND IN 0.1µF GND V BUS OUTB D+ USB D– Port 2 47µF GND Data (Two Pair) to USB Controller MIC2026/2076 Micrel ...
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... MIC2026/2076 Package Information 0.026 (0.65) 0.157 (3.99) 0.150 (3.81) 0.064 (1.63) 0.045 (1.14) 0.018 (0.57) MIC2026/2076 MAX) PIN 1 DIMENSIONS: INCHES (MM) 0.020 (0.51) 0.013 (0.33) 0.050 (1.27) TYP 0.0098 (0.249) 0.0040 (0.102) 0 –8 0.197 (5.0) 0.189 (4.8) SEATING PLANE 8-Lead SOP (M) PIN 1 DIMENSIONS: INCH (MM) 0.380 (9.65) 0.370 (9.40) 0.135 (3.43) 0.125 (3.18) 0.380 (9.65) 0.130 (3.30) 0.320 (8.13) 0.100 (2.54) 0.0375 (0.952) ...
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... MIC2026/2076 March 2000 15 Micrel MIC2026/2076 ...
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... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. MIC2026/2076 + 1 (408) 944-0970 http://www ...