MIC2505 Micrel Semiconductor, MIC2505 Datasheet
MIC2505
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MIC2505 Summary of contents
Page 1
... Open-load detection is active when the switch is off. When off, a normal load pulls the output pin low. If the load is open, an optional, external, high-value resistor pulls the output pin high, triggering the fault flag. MIC2505-1 and -2 versions are tailored to Universal Serial Bus (USB) applications and do not include open-load detection. ...
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... MIC2505/2506 Ordering Information Part Number Control/Enable Open-Load Detect Temperature Range Single-Switch MIC2505BM MIC2505BN MIC2505-1BM MIC2505-1BN MIC2505-2BM MIC2505-2BN Dual Switch MIC2506BM MIC2506BN Pin Configuration MIC2505/-1/-2 CTL 1 FLG 2 GND 3 GATE 4 MIC2505/-1/-2 LOGIC, (CTL A) 1 CHARGE (FLG A) 2 PUMP (GATE (GND) 8-Pin SOIC (M) ...
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... IN Supply Input: Output MOSFET drain. Also supplies IC’s internal circuitry. Connect to supply. MIC2505 series only: Pins 5 and 7 must be externally connected together. Switch Output: Output MOSFET source. Typically connect to switched side of load. Output voltage can be pulled above input voltage in off mode. MIC2505 series only: Pins 6 and 8 must be externally connected together. ...
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... Error Flag Off Current UVLO Threshold General Note: Devices are ESD protected, however, handling precautions recommended. General Note: All limits guaranteed by testing or statistical analysis. Note 1: MIC2505-1 and -2 versions have no open load detect feature. Note 2: Open-load threshold is the output voltage (V resistor ...
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... MIC2505/2506 Test Circuits MIC2505/-1/-2 10k CTL V FLG FLG GND GATE Typical Characteristics Note 2 MIC2505 Turn-On, Turnoff Characteristics 1A TIME (ms) TIME ( s) MIC2506 Turn-On, Turnoff Characteristics 1A) ...
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... TEMPERATURE ( C) MIC2505/2506 Off-State Supply Current vs. Temperature 2.0 1.5 1.0 0.5 0 -40 - 100 TEMPERATURE ( C) MIC2505 Turn-On Delay with External Gate Capacitance 1000 800 600 400 200 100 150 200 250 CAPACITANCE (nF) 6 Micrel Control Threshold vs. Temperature 2 ...
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... CHARGE PUMP MIC2505/2505-1/2505-2 CTL A CTL B MIC2506 April 1998 THERMAL UVLO SHUTDOWN GATE CONTROL Not Included in MIC2505-1, -2 OPEN LOAD DETECT GND MIC2505-Series Block Diagram CHARGE PUMP THERMAL OSC. UVLO SHUTDOWN CHARGE PUMP GND MIC2506 Block Diagram 7 1.2V IN REFERENCE CURRENT LIMIT OUT ...
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... CTL, thermal shutdown, or UVLO (undervoltage lockout). An optional, external capacitor may be connected to the MIC2505 GATE to lengthen the rise time. This slows the turn on of the MOSFET output switch. (See “MIC2505 Turn-On Delay” graph.) Since this pin connects directly to the MOSFET gate, use ESD precautions when contacting components connected to this pin ...
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... GND Socket A gate capacitor may be added to the MIC2505 to slow the turn on time even more, reducing the inrush current. See “MIC2505 Turn-On Delay” graph. The UVLO feature insures that each time the card is removed and V of the output switch is discharged to zero volts. A controlled turn-on is executed each time a board is plugged in, even with multiple insertions ...
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... MIC5207-3.3 (–) LDO Regulator V BUS IN OUT D+ D– GND GND 4.7 µF Bold lines indicate 0.1" wide, 1-oz. copper high-current traces. MIC2505/2506 100k 3.3V USB Controller MIC2505-2/-1 V+ ON/OFF EN 1.0 OVERCURRENT FLG µF GND GATE D+ D– GND Figure 4. Ganged-Switch Self-Powered Hub 10 Ferrite Bead V BUS D+ 0.01µ ...
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... SEATING PLANE 8-Pin SOIC (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 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 MIC2505/2506 ...
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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. MIC2505/2506 + 1 (408) 944-0970 http://www ...