MIC2526 Micrel Semiconductor, MIC2526 Datasheet
MIC2526
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MIC2526 Summary of contents
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... MIC2526 General Description The MIC2526 is a dual integrated high-side power switch with independent enable and flag functions, optimized for self- powered and bus-powered Universal Serial Bus (USB) appli- cations. Few external components are necessary to satisfy USB requirements. The MIC2526 satisfies the following USB requirements: each switch channel supplies up to 500mA as required by USB downstream devices ...
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... Pin Configuration Pin Description Pin Number Pin Name EN(A/ FLG(A/B) 6 GND OUT(A/B) MIC2526 Enable Temperature Range Active High – +85 C Active Low – +85 C Active High – +85 C Active Low – +85 C MIC2526 ENA 1 ...
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... OUT OUT increasing decreasing = 5V 10mA L = 3.3V 10mA increasing = decreasing 2.4V and on is 0.8V for the MIC2526-2. The enable input has approximately 3 (Note 2) ) ...................................... +3V to +5. ........ – + ......................................................... 120 C ............................................................. 130 C/W JA Min Typ 0.75 110 2.1 0.8 1.9 –1 ...
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... TEMPERATURE ( C) Output Rise Time vs. Temperature 5 4 Awaiting Full 3 Characterization Data -40 - 100 TEMPERATURE ( C) MIC2526 Output On-Resistance vs. Temperature 140 120 100 -40 - 100 TEMPERATURE ( C) Off-State Supply Current vs ...
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... F L Short Circuit Response (Enable into Short Circuit) Thermal Shutdown 0.95A Short Circuit Limiting TIME (250ms/div.) 5 Turn-On, Turnoff Characteristics 144mA TIME (2.5ms/div.) Short Circuit Response (Short Applied to Output) Thermal Shutdown 0.95A Short Circuit Limiting TIME (250ms/div.) MIC2526 Micrel ...
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... MIC2526 Short Circuit Transient Response (Short Applied to Output) 2.76A 1A Current Limit TIME (500 s/div.) Test Circuit 5V 10k MIC2526 Ferrite 0.1µF (1 output shown) Bead MIC2526 I OUT ENA OUTA C FLGA FLGB GND OUTB ENB Functional Characteristics Test Circuit 6 Current-Limit Response (Ramped Load) ...
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... MIC2526 Block Diagrams ENA ENB MIC2526 February 2000 CHARGE PUMP THERMAL OSC. UVLO SHUTDOWN CHARGE PUMP GND 7 FLGA OUTA GATE CONTROL CURRENT LIMIT 1.2V IN REFERENCE CURRENT LIMIT GATE CONTROL OUTB FLGB Micrel MIC2526 ...
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... This constant current is specified as the short circuit current limit in the “Electrical Characteristics” table important to note that the MIC2526 will deliver load current up to the current-limit threshold which is typically 1.6A. Refer to “Func- tional Characteristics: Current-Limit Response” photo for details ...
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... USB Hub GND February 2000 Soft Start The MIC2526 presents a high impedance when off, and slowly becomes a low impedance as it turns on. This reduces inrush current and related voltage drop that results from charging a capacitive load, satisfying the USB voltage droop requirements for bus-powered applications as shown in Figure 2 ...
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... MIC2526 In USB applications required that output bulk capaci- tance is utilized to support hot-plug events. When the MIC2526 is enabled, the flag may go active for about 1ms due to inrush current exceeding the current-limit setpoint. Additionally, during hot-plug events, inrush currents may also cause the flag to go active for 30 s ...
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... SEATING PLANE 8-Pin 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) 8-Pin Plastic DIP ( 0.010 (0.25) 0.007 (0.18) 0.050 (1.27) 0.016 (0.40) 0.244 (6.20) 0.228 (5.79) 0.255 (6.48) 0.245 (6.22) 0.300 (7.62) 0.013 (0.330) 0.010 (0.254) Micrel MIC2526 ...
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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. MIC2526 + 1 (408) 944-0970 http://www ...