MAX1823 Maxim, MAX1823 Datasheet
MAX1823
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MAX1823 Summary of contents
Page 1
... The MAX1823A/MAX1823B also block reverse current (cur- rent from OUT_ to IN_) while in shutdown. The MAX1823 is available in a space-saving 10-pin µMAX package. The MAX1823/MAX1823A are enabled with an active-low signal, and the MAX1823B/MAX1823H are enabled with an active-high signal. For a single ver- sion of this device, refer to the MAX1946 data sheet ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS = 5V, ONA = ONB = GND (MAX1823/MAX1823A), ONA = ONB = IN (MAX1823B/MAX1823H), (Circuit of Figure ...
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... ELECTRICAL CHARACTERISTICS (continued) = 5V, ONA = ONB = GND (MAX1823/MAX1823A), ONA = ONB = IN (MAX1823B/MAX1823H), (Circuit of Figure INA INB +85 C, unless otherwise noted. Typical values are PARAMETER SYMBOL Short-Circuit Detect Threshold Continuous Current-Limit Blanking Timeout Period Short-Circuit Blanking Timeout Period Turn-On Delay ...
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... Current Limit into Short Circuit I SHORT Continuous Current-Limit Blanking Timeout Period Short-Circuit Blanking Timeout Period Turn-On Delay Turn-Off Delay from _______________________________________________________________________________________ = 5V, ON_ = GND (MAX1823/MAX1823A CONDITIONS Each switch, MAX1823/MAX1823H ON Each switch, MAX1823A/MAX1823B ON_ = IN_ (MAX1823/MAX1823A), ON_ = GND (MAX1823B/MAX1823H 0A, one channel on OUTA ...
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... 5.5V FAULT_ IN_ In latched-off state OUT_ In latched-off state, rising In latched-off state, V > 0.5V OUT_ to prevent permanent device damage. When the MAX1823A/MAX1823B RMS Typical Operating Characteristics = 5V, ON_ = GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), T QUIESCENT CURRENT vs. TEMPERATURE 5. 4.5V IN ...
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... Dual USB Switch with Fault Blanking and Autoreset = 5V, ON_ = GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), T (Circuit of Figure INA INB unless otherwise noted.) SWITCH OFF-LEAKAGE vs. TEMPERATURE 1000 100 10 1 0.1 0.01 -40 - TEMPERATURE ( C) TURN-ON TIME vs. TEMPERATURE ( RISE 4.0 3 4. ...
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... 5V/div IN FAULTA 5V/div 2A/div OUTA OUTA _______________________________________________________________________________________ Dual USB Switch with Fault Blanking and Autoreset Typical Operating Characteristics (continued) = 5V, ON_ = GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), T AUTORESET CURRENT vs. INPUT VOLTAGE (MAX1823A/MAX1823B + + ...
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... Dual USB Switch with Fault Blanking and Autoreset = 5V, ON_ = GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), T (Circuit of Figure INA INB unless otherwise noted.) SWITCH TURN-OFF TIME ( OFF FALL MAX1823 toc22 A B 1ms/div 5V/div ONA 2V/div OUTA PIN NAME ONA C ontr ol Inp ut for tch A ...
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... USB controller when the current-limit, short-circuit, undervoltage-lockout, or thermal-shutdown threshold is reached (Figure 2). The MAX1823 operates from 5.5V input voltage range and guarantees a minimum 720mA output current. A built-in 0.9A current limit limits the current in the event of a heavy-overload condition. The MAX1823 has inde- pendent thermal shutdown for each switch in the event of a prolonged overload or short-circuit condition ...
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... Note that a thermal overload may result from either of these high-current conditions. The MAX1823 switches may enter current limit in nor- mal operation when powering up or driving heavy capacitive loads. To differentiate these conditions from short circuits or sustained overloads that may damage the device, the MAX1823 has an independent fault- blanking circuit in each switch ...
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... Input Capacitor inductive component to the load. This inductance causes the output voltage at the USB port to ring during a load step. The MAX1823 is capable of driving inductive loads, but avoids exceeding the device’s absolute maximum rat- ings. Usually the load inductance is relatively small, and the MAX1823’ ...
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... Dual USB Switch with Fault Blanking and Autoreset Turn-On and Turn-Off Behavior In the absence of faults, the MAX1823’s internal switches turn on and off slowly under the control of the ON_ inputs. Transition times for both edges are provided in the Electrical Characteristics table. The slow charge- pump switch drive minimizes load transients on the upstream power source ...
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... D1 FRONT VIEW Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © ...