november 2008 ? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 rev. 1.0.3 FAN3989 ? usb/charger detection device with load switch FAN3989 usb/charger detection device with load switch features ? charger/usb detection device with load switch ? charger/usb device detection flag ? over/under-voltage detection flag ? load switch output, up to 1.5a charge current ? v bus supply: 2.7v to 20v ? c on of 1.5pf ? package: 8 mlp applications ? mobile phones ? handheld devices description the FAN3989 is a usb-connection-monitoring device used to determine if a standard usb device is connected or a battery c hanging device is connected. the FAN3989 sets the flag1 pin to logic high or low as an indicator to the system controller that a standard usb device or a charger is connected to the usb port. the FAN3989 also monitors the v bus for over- or under-voltage conditions. the flag2 pin is set low if v bus is less than 3.3v or greater than 6.0v. the internal ls ctrl (load switch control) pin is set high if v bus is less than 3.3v or great er than 6.0v, turning off the pmos switch. the FAN3989 is packaged in a very small 8-lead mlp package suitable for small board space applications, like mobile phones. ordering information part number operating temperature range eco status package packing method quantity FAN3989mlp8x -40c to +85c green 8-lead molded leadless package (mlp) reel 3000 for fairchild?s definition of ?green? eco status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html . std usb/ charger detect logic d+ v out logic ls ctrl flag 1 flag 2 gnd d- comparator ovp uvp v bus figure 1. block diagram
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 2 FAN3989 ? usb/charger detection device with load switch pin configuration d+ gnd flag2 ls ctrl d- flag2 v bus v out 1 2 3 4 8 7 6 5 figure 2. pin configuration (top view) pin definitions pin# name type description 1 d+ input usb data input 2 gnd input device ground 3 flag2 output over/under-voltage flag output 4 lsctrl output pmos switch control ? pull-up connection to v bus 5 vout output voltage out 6 v bus input power input from charger, usb device, or handheld battery 7 flag1 output charger/standard usb device detect flag 8 d- input usb data input truth table connection state v bus d- d+ flag1 flag2 ls ctrl description std usb device 0v r to gnd r to gnd low low high load switch open usb charger 5v short to d+ short to d- high high low normal state, load switch closed v bus gt 6v gt 6v short to d+ short to d- high low high load switch open v bus lt 3.3v lt 3.3v short to d+ shor t to d- high low high load switch open pc data/charger 5v open open low high low load switch closed
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 3 FAN3989 ? usb/charger detection device with load switch absolute maximum ratings stresses exceeding the absolute maximum ratings may damage the device. the device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. in addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. the absolute maximum ratings are stress ratings only. symbol parameter min. max. unit v s dc supply voltage -0.3 20.0 v v io analog and digital i/o -0.3 v cc +0.3 v reliability information symbol parameter min. typ. max. unit t j junction temperature +150 c t stg storage temperature range -65 +150 c ja thermal resistance, jedec standard, multilayer test boards, still air 41 c/w esd information symbol parameter max. unit human body model, jesd22-a114 3 kv esd charged device model, jesd22-c101 2 kv recommended operating conditions the recommended operating conditions table defines the conditions for actual device operation. recommended operating conditions are specified to ens ure optimal performance to the datasheet specifications. fairchild does not recommend exceeding them or designing to absolute maximum ratings. symbol parameter min. typ. max. unit t a operating temperature range -40 +85 c v cc supply voltage range 2.7 5.0 20.0 v
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 4 FAN3989 ? usb/charger detection device with load switch dc electrical characteristics t a = 25c, v cc = 5.0v, unless otherwise noted. symbol parameter conditions min. typ. max. units supply v s supply voltage range v s range 2.7 5.0 20.0 v i cc quiescent supply current v s = +5.0v, d+ d- shorted 1.2 2.0 ma t supply power-up stabilization time v s = +5.0v, d+ d- shorted 10 ms input characteristics c d+ input capacitance 1.5 2.0 pf c d- input capacitance 1.5 2.0 pf i off d+ off leakage current v bus = 0v or 5v v in on d+ = 5v 1 a i off d- off leakage current v bus = 0v or 5v v in on d- = 5v 1 a output characteristics ov detect over-voltage threshold detect v s = +5.0v, flag2 = low 5.8 6.0 6.2 v ov hyst over-voltage hysteresis voltage sweep through upper and lower trip points 100 mv uv detect under-voltage threshold detect v s = +5.0v, flag2 = low 3.0 3.3 3.6 v uv hyst under-voltage hysteresis voltage sweep through upper and lower trip points 100 mv v oh flag1/ flag2 minimum high output voltage v s = +5.0v, i oh = -20a 2.4 v v ol flag1/ flag2 maximum low output voltage v s = +5.0v, i ol = 20a 0.3 v v ol ls_ctrl maximum low output voltage v s = +5.0v, i ol = 100a 0.3 v vb dss drain source breakdown voltage v gs = 0v, i d = -250a -20 v r dson static drain-source on resistance v gs = -5.0v, i p = 1a 67 m ? c iss input capacitance 330 pf c oss output capacitance v ds = -10v, v gs = 0v, f = 1.0mhz 80 pf t d(on) pmos turn-on delay time 5 s t d(off) pmos turn-off delay time v dd = -5v, i p = -0.5a, v gs = -4.5v, r gen = 6 ? 14 s
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 5 FAN3989 ? usb/charger detection device with load switch typical performance characteristics v cc = 2.7v-7.0v 0. 40 0. 50 0. 60 0. 70 0. 80 0. 90 1. 00 2.70 2.90 3.10 3.30 3.50 3.70 3.90 4.10 4.30 4.50 4.70 4.90 5.10 5.30 5.50 5.70 5.90 6.10 6.30 6.50 6.70 6.90 v cc ma icc v cc =8.0v-21v 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 8 9 10 11 12 13 14 15 16 17 18 19 20 21 v cc ma i cc figure 3. i cc vs. v cc (2.7v-7.0v) no load figure 4. i cc vs. v cc (8.0v-21v) no load r on vs v cc 180.0 182.0 184.0 186.0 188.0 190.0 192.0 3.45 3.55 3.64 3.74 3.83 3.93 4 4.12 4.22 4.31 4.41 4.5 4.6 4.7 4.8 4.9 4.98 5.08 5.18 5.27 5.37 5.46 5.56 5.65 5.75 5.85 5.94 v cc m r on figure 5. r on vs. v cc (10 load) figure 6. turn on time
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 6 FAN3989 ? usb/charger detection device with load switch typical performance characteristics (continued) figure 7. turn off time figure 8. no fault on flag 1, skew=65ns
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 7 FAN3989 ? usb/charger detection device with load switch typical performance characteristics (continued) figure 9. pc data running d+/d- (fla g 1 and flag 2 at correct levels) figure 10. standard usb charger plug-in
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 8 FAN3989 ? usb/charger detection device with load switch applications information comparator ovp uvp logic flag1 flag2 d+ gnd v out v bus usb gnd d+ d- v bus d- 2 logic battery ls ctrl control std usb/ charger detect figure 11. mobile phone battery charging system
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 9 FAN3989 ? usb/charger detection device with load switch physical dimensions figure 12. 8-lead molded leadless package (mlp) package drawings are provided as a service to customers considering fairchild components. drawings may change in any manner without notice. please note the revision and/or date on the drawing and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and condition s, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ .
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FAN3989 ? 1.0.3 10 FAN3989 ? usb/charger detection device with load switch
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