MIC2043-2YTS TR Micrel Inc, MIC2043-2YTS TR Datasheet
MIC2043-2YTS TR
Specifications of MIC2043-2YTS TR
MIC2043-2YTSTR
Related parts for MIC2043-2YTS TR
MIC2043-2YTS TR Summary of contents
Page 1
... Additionally, for tighter control over inrush current during start-up, the output slew-rate may be adjusted by an external capacitor. The MIC2043 features a auto-reset circuit breaker mode that latches the output off upon detecting an overcurrent condition lasting more than 28ms. The output is reset by removing or reducing the load. All support documentation can be found on Micrel’ ...
Page 2
... MIC2042/2043 Ordering Information Part Number Standard Pb-Free MIC2042-1BM MIC2042-1YM MIC2042-2BM MIC2042-2YM MIC2043-1BM MIC2043-1YM MIC2043-2BM MIC2043-2YM MIC2042-1BTS MIC2042-1YTS MIC2042-2BTS MIC2042-2YTS MIC2043-1BTS MIC2043-1YTS MIC2043-2BTS MIC2043-2YTS Pin Configuration EN 1 /FAULT 2 GND 3 ILIM 4 8-Pin SOP (M) M0512-112603 Enable Circuit Breaker V BIAS Active High Active Low Active High ...
Page 3
MIC2042/2043 Pin Description Pin Number Pin Number 8-Pin SOP 14-Pin TSSOP N 5,7 8,12 6,8 10,11,14 N/A 7 N/A 13 N/A 1 N/A 4 January 2005 Pin Name Pin Function EN ...
Page 4
... I ≤ 3A OUT V = 3V, 0.5V ≤ V < 0.5V IN OUT 0.5A ≤ I ≤ 3A OUT 1.6V to 5.5V IN BIAS (14-pin TSSOP 0. rising (MIC2043) OUT Output latched off (MIC2043) I (/FAULT) = 15mA OL I (PWRGD) = 5mA FAULT PWRGD V rising IN V falling IN rising IN V falling IN ...
Page 5
... BIAS R = 10Ω 1µF LOAD LOAD R = 10Ω 1µF LOAD LOAD R = 10Ω 1µF LOAD LOAD R = 10Ω 1µF LOAD LOAD > 4.0V for MIC2042/MIC2043- CLF/R . LIM SET 50 10% (a) MIC2042/43-1 50 10% (b) MIC2042/43-2 Figure 1. Turn-On/Turn-Off Delay Increase the load 0. LIMIT 5 Min Typ ...
Page 6
MIC2042/2043 Test Circuit m M0512-112603 m MIC2042/43-xBTS January 2005 Micrel ...
Page 7
MIC2042/2043 Typical Characteristics Supply Current vs. Temperature 500 450 400 5.5V 350 IN BIAS 300 250 IN BIAS 1.6V IN BIAS 200 150 100 -40 -20 0 ...
Page 8
... BIAS R = 2.8 m LOAD LOAD = LOAD LOAD 8 5V Turn-Off LOAD LOAD m TIME (250 s/div.) Latched Output Reset (MIC2043) 4.84V toggles from 2 to OPEN LOAD LOAD TIME (50ms/div.) UVLO Response 1.40V V ramps LOAD LOAD TIME (2.5ms/div.) January 2005 Micrel ...
Page 9
MIC2042/2043 Output Slew Response TIME (2.5ms/div.) January 2005 2.8 LOAD LOAD 0.033 F SLEW 9 Thermal Shutdown Response ...
Page 10
MIC2042/2043 Functional Diagram M0512-112603 + + MIC2042/43 Block Diagram 10 Micrel + + January 2005 ...
Page 11
... MIC2042/2043 Functional Description The MIC2042 and MIC2043 are high-side N-Channel switches equipped with programmable current limit for use in general purpose power distribution applications. The switches, available with active-high or active-low enable inputs, provide output slew-rate control and circuit protection via thermal shutdown and an optional output latch during overcurrent conditions ...
Page 12
... MOSFET being shut off. Circuit Breaker Function (MIC2043) The MIC2043 is designed to shut off all power to the load when a fault condition occurs, just as a circuit breaker would do. A fault condition is deemed to be anytime the output current exceeds the current limit for more than the flag delay period, nominally 28ms ...
Page 13
... For the MIC2043, the /FAULT will assert and the output will latch off if the output is not within 200mV of the input before the flag delay times out. When using the active-low (– ...
Page 14
... This same feature also can be used for soft-start requirements. PCB Layout Recommendations The MIC2042 and MIC2043 have very low on-resistance, typically 40mΩ, and the switches can provide continuous output current. Under such heavy loads, the power consumed by the devices may cause the devices to ...
Page 15
MIC2042/2043 Package Information 0.026 (0.65) 0.157 (3.99) 0.150 (3.81) 0.064 (1.63) 0.045 (1.14) 0.65 BSC (0.026) MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this data sheet ...