1997 1 MIC2514 MIC2514 micrel MIC2514 ittybitty integrated high-side switch final information general description the MIC2514 is an integrated high-side power switch that consists of a ttl compatible input and protected p-channel mosfet. the MIC2514 can be used instead of a separate high-side driver and mosfet in many low- voltage applications. the MIC2514 switches voltage ranging from 3v to 13.5v and delivers more than 400ma continuous current. a slow turn- on feature prevents high inrush current when switching capacitive loads. the internal control circuitry is powered from the unswitched 3v to 13.5v input. current limiting is internally fixed at approximately 1.9a and requires no external components. thermal shutdown turns off the output if the die temperature exceeds approximately 170 c. the MIC2514 is available in the 5-lead sot-23-5 package with a temperature range of ?0 c to +85 c. pin configuration typical application features mosfet on-resistance 1.5 ? typical at 5v 0.95 ? typical at 12v 3v to 13.5v input ?5 a typical on-state supply current at 5v ?1 a typical off-state supply current at 5v current limit thermal shutdown slow turn-on applications 3.3v to 13.5v power management ordering information part number temperature range package MIC2514bm5 ?0 c to +85 c sot-23-5 part identification ctl nc out in f10 1 3 45 2 gnd 5-lead sot-23-5 (m5) on off in out MIC2514 13 gnd 4 ctl 2 0.1f 3v to 13.5v load high-side power switch pin description pin number pin name pin function 1 ctl control (input): noninverting ttl compatible control input. high = on, low = off. 2 gnd ground 3 in supply input: output mosfet source. also supplies ic s internal circuitry. connect to supply. 4 out switch output: output mosfet drain. connect to switched side of load. 5 nc not internally connected. connect to ground plane for lowest package thermal resistance. micrel, inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
MIC2514 micrel MIC2514 2 1997 absolute maximum ratings supply voltage (v in ) ................................................... +20v output current (i out ) ............................... internally limited control input (v ctl ) ....................................... 0.3v to 15v storage temperature (t a ) ....................... 65 c to +150 c operating ratings supply voltage (v in ) .................................... +3v to +13.5v ambient operating temperature (t a ) ........ 40 c to +85 c thermal resistance ( ja ) ................................................................... 220 c/w ( jc ) .................................................................. 130 c/w electrical characteristics v in = +5v; t a = 25 c, except bold values indicate 40 c t a 85 c, note 1 ; unless noted. parameter condition min typ max units supply current v ctl = logic 0, v in = 5v 0.6 10 a v ctl = logic 0, v in = 13.5v 2.0 25 a v ctl = logic 1, v in = 3v 10 20 a v ctl = logic 1, v in = 5v 25 40 a v ctl = logic 1, v in = 13.5v 95 200 a control input voltage v ctl = logic 0, 3v v in 13.5v 0 0.8 v v ctl = logic 1, 3v v in 5v 0.8 1.45 2.0 v v ctl = logic 1, 5v v in 13.5v 0.8 1.65 2.3 v output mosfet resistance v in = 3v 2.4 4.5 ? v in = 5v 1.5 2.4 ? 2.7 ? v in = 12v .95 1.5 ? 1.7 ? current limit threshold v in = 3v 0.5 1.5 a v in = 5v 1.0 1.4 2.0 a v in = 12v 1.2 1.9 2.5 a general note: devices are esd protected, however, handling precautions recommended. note 1 : devices production tested at 25 c, but devices guaranteed over indicated temperature range.
1997 3 MIC2514 MIC2514 micrel 0 0.5 1.0 1.5 2.0 0 5 10 15 control voltage (v) supply voltage (v) control input threshold vs. supply voltage t a = 25 c ctl rising ctl falling 0 0.5 1.0 1.5 2.0 2.5 -60 -30 0 30 60 90 120 150 threshold (v) temperature ( c) control input threshold vs. temperature v ctl = a v in = 5v v ctl = _ v in = 5v v ctl = _ v s = 13.5v v ctl = a v s = 13.5v 1 10 100 0.1 1 10 100 1000 turn-on delay time ( s) load capacitance (nf) turn-on delay time vs. load capacitance i l = 5ma, t a = 25 c v in = 13.5v v in = 5v 0 20 40 60 0 0.2 0.4 0.6 0.8 1.0 1.2 turn-on delay time ( s) load current (a) turn-on delay time vs. load current v in = 5v v in = 13.5v t a = 25 c 1 10 100 0.1 1 10 100 1000 rise time ( s) load capacitance (nf) rise time vs. load capacitance v in = 5v v in = 13.5v t a = 25 c 0 20 40 60 80 0 0.4 0.8 1.2 1.6 rise time ( s) load current (a) rise time vs. load current v in = 13.5v v in = 5v t a = 25 c typical characteristics 0 1 2 3 0 5 10 15 on-resistance ( ? ) supply voltage (v) on-resistance vs. supply voltage v ctl = 5v t a = 25 c 0 0.5 1.0 1.5 2.0 2.5 -80 -40 0 40 80 120 160 on-resistance ( ? ) ambient temperature ( c) on-resistance vs. temperature v ctl = 5v v in = 5v v in = 13.5v 0 0.5 1.0 1.5 2.0 2.5 0 5 10 15 current limit (a) supply voltage (v) current limit vs. supply voltage -25 c 25 c 75 c 125 c 0 50 100 150 200 -60 -30 0 30 60 90 120 150 supply current ( a) temperature ( c) on-state supply current vs. temperature v in = 13.5v v in = 5v 0 0.5 1.0 1.5 2.0 2.5 -60 -30 0 30 60 90 120 150 supply current ( a) temperature ( c) off-state supply current vs. temperature v in = 5v v ctl = 0v 0 1 2 3 4 0 5 10 15 supply current ( a) supply voltage (v) off-state current supply vs. supply voltage t a = 25 c v ctl = 0v
MIC2514 micrel MIC2514 4 1997 typical characteristics 0.01 0.1 1 10 0.1 1 10 100 1000 turnoff delay time (ms) load capacitance (pf) turnoff delay time vs. load capacitance i l = 5ma, t a = 25 c v in = 5v v in = 13.5v 0.01 0.1 1 10 0.1 1 10 100 1000 turnoff delay time (ms) load capacitance (nf) turnoff delay time vs. load capacitance i l = 200ma, t a = 25 c v in = 5v v in = 13.5v 0 20 40 60 0 0.2 0.4 0.6 0.8 1.0 1.2 turnoff delay time ( s) load current (a) turnoff delay time vs. load current v in = 5v v in = 13.5v t a = 25 c c l = 0 0.001 0.01 0.1 1 10 0.1 1 10 100 1000 fall time (ms) load capacitance (nf) fall time vs. load capacitance v in = 5v v in = 13.5v i l = 5ma, t a = 25 c 0 5 10 15 20 25 30 0 0.5 1.0 1.5 fall time ( s) load current (a) fall time vs. load current v in = 13.5v v in = 5v t a = 25 c c l = 0 0.001 0.01 0.1 1 10 0.1 1 10 100 1000 fall time (ms) load capacitance (nf) fall time vs. load capacitance v in = 13.5v v in = 5v i l = 200ma, t a = 25 c
1997 5 MIC2514 MIC2514 micrel functional diagram out in ctl MIC2514 +3v to +13.5v gate control load ttl compatible input thermal shutdown current limit .01 ? functional description the MIC2514 is a noninverting high-side switch. a logic-high control input turns on the output transistor, and a logic-low turns off the output transistor. fault conditions turn off the output transistor. control input applying a logic-high input to ctl (control input) activates the thermal shutdown and gate control circuits. if there are no fault conditions, the output mosfet turns on. gate control the gate control circuit applies the supply voltage to the output mosfet gate, turning it off, or forces the mosfet gate below the supply voltage, turning it on, as determined by ctl and thermal shutdown. input and output in (input) is the supply connection to the logic circuitry and the source of the output mosfet. out (output) is the drain of the output mosfet. in a typical circuit, current flows through the switch from in to out toward the load. the output mosfet has an intrinsic body diode which will conduct if out is forced to a higher voltage than in. thermal shutdown thermal shutdown turns off the output mosfet if the die temperature exceeds approximately 170 c. thermal shut- down releases the output after the die temperature de- creases 10 c. current limit the current limit is preset internally. the preset level pre- vents damage to the output mosfet but allows a typical current of 1.9a through the output mosfet for the MIC2514. this current limit is sufficent to protect the bond wire and the output device from instantaneous high current. package thermal ratings and power dissipation should be considered when determining safe continuous operating current. output current is monitored by sensing the voltage drop across the output mosfet source metal resistance.
MIC2514 micrel MIC2514 6 1997 package information 0.20 (0.008) 0.09 (0.004) 0.60 (0.024) 0.10 (0.004) 3.02 (0.119) 2.80 (0.110) 10 0 3.00 (0.118) 2.60 (0.102) 1.75 (0.069) 1.50 (0.059) 0.95 (0.037) ref 1.30 (0.051) 0.90 (0.035) 0.15 (0.006) 0.00 (0.000) dimensions: mm (inch) 0.50 (0.020) 0.35 (0.014) 1.90 (0.075) ref sot-23-5 (m5)
1997 7 MIC2514 MIC2514 micrel
MIC2514 micrel MIC2514 8 1997 micrel inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 web http://www.micrel.com this information is believed to be accurate and reliable, however no responsibility is assumed by micrel for its use nor for an y 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 pat ent right of micrel inc. ? 1997 micrel incorporated
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