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may 2008 rev 2 1/14 1 L9856 high voltage high-side driver features high voltage rail up to 160 v dv/dt immunity 50 v/nsec in full temperature range driver current capability: 500 ma source, 500 ma sink switching times 100 ns rise/fall with 2.5 nf load cmos/ttl schmitt trigger inputs with hysteresis under voltage lock out clamping on v cc loading circuit for external bootstrap capacitor inverting input reset circuitry so-8 package description the L9856 is an high voltage device, manufactured with the bcd "off-line" technology. it has the capability of driving n-channel power mos transistors. the upper (floating) section is enabled to work with voltage rail up to 160 v. the logic inputs are cmos/ttl compatible for ease of interfacing with controlling devices. so-8 table 1. device summary order code operating temp range, cpackage packing L9856 -40 to +125 so-8 tube L9856tr -40 to +125 so-8 tape and reel www.st.com
contents L9856 2/14 contents 1 block diagram andpin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.5 logic table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
L9856 list of tables 3/14 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 table 3. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 4. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 5. recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 6. electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 7. logic table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 8. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
list of figures L9856 4/14 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 3. input/output timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 4. reset timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 5. so-8 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
L9856 block diagram andpin description 5/14 1 block diagram andpin description 1.1 block diagram figure 1. block diagram 1.2 pin description figure 2. pin connection (top view) logic pulse filter level shifter "on" level shifter "off" undervoltage reset vb to vs pulse filter flip flop break before make undervoltage reset vcc to gnd delay recharge path v cc v b v s h o res- in- gnd table 2. pin function pin # pin name description 1v cc driver supply, typical 5v 2 in- driver control signal input (negative logic) 3 gnd ground 4 reset- driver enable signal input (negative logic) 5v s mosfet source connection 6 nc no connection (no bondwire) 7h o mosfet gate connection 8v b driver output stage supply v cc in- gnd reset- 1 3 2 4v s nc h o v b 8 7 6 5
electrical specifications L9856 6/14 2 electrical specifications 2.1 thermal data 2.2 absolute maximum ratings absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. all voltage parameters are absolute voltages referenced to gnd, all currents are defined positive into any lead. an operation above the absolute maximum limit is not implied and can damage the part. table 3. thermal data symbol parameter value unit r th(j-amb) thermal resistance junction to ambient max. 150 c/w table 4. absolute maximum ratings symbol parameter value units min. max. v bs high side floating supply voltage. -0.3 20 v v b high side driver output stage voltage neg. transient: 0.5 ms, external mosfet off. -5 166 v v s high side floating supply offset voltage neg. transient 0.1 s, repetitive pulse over lifetime at every switching event. -8 150 v v ho output voltage gate connection. v s - 0.3 v b + 0.3 v v cc supply voltage. -0.3 20 v v in input voltage. -0.3 v cc + 0.3 v i in input injection current. full function, no latch- up; (guaranteed by design). test at 5 v and 7 v on eng. samples. --- +1 ma v res reset input voltage. -0.3 v cc + 0.3 v v esd electrostatic discharge voltage (human body model). 2k v v cdm charge device model cdm, eos/esd ass. std 5.3. number of di scharges per pin: 6. 500 v dv/dt allowable offset voltage slew rate. -50 50 v/nsec t j junction temperature. -55 150 c t stg storage temperature. -55 150 t l lead temperature (soldering, 10 seconds) 3 times bosch soldering pr ofile acc. to bosch soldering conditions, gen. spec. - 300
L9856 electrical specifications 7/14 2.3 recommended operating conditions for proper operations the device should be used within the recommended conditions. 2.4 electrical characteristics table 5. recommended operating conditions symbol parameter value units min. max. v b (1) high side driver output stage voltage vs+4.4 vs+18 v v s high side floating supply offset voltage (25c) (125c) -3.2 -2.9 150 150 v v ho output voltage gate connection v s v b v v cc supply voltage 4.4 6.5 v v in input voltage 0 v cc v v res reset input voltage 0 v cc v dv/dt (2) allowable offset voltage slew rate -50 50 v/nsec f s switching frequency 200 khz 1. reset-logic functional for v bs > 2v, independent from v cc -level. 2. guaranteed by design. table 6. electrical characteristics unless otherwise specified, v cc = 5 v, v bs = 7 v, v s = 0 v, in = 0 v, res = 5 v, load r = 50 , c = 2.5 nf. unless otherwise noted, these specifications apply for an operating ambient temperature range of -40 c < t amb < 125 c. symbol parameter test condition min. typ. max. unit v cc supply v ccuv+ v cc supply undervoltage positive going threshold v cc rising from 0 v 4.3 v v ccuv- v cc supply undervoltage negative going threshold v cc dropping from 5 v 2.8 v ccuvhys v cc supply undervoltage lockout hysteresis 0.02 0.3 0.6 t d uvcc undervoltage lockout response time v cc steps either from 6.5 v to 2.7 v or from 2.7 v to 6.5 v 0.5 20 s i qcc v cc supply current 400 a
electrical specifications L9856 8/14 v bs supply v bsuv+ v bs supply undervoltage positive going threshold v cc rising from 0 v 4.3 v v bsuv- v bs supply undervoltage negative going threshold v cc dropping from 5 v 2.8 v v bsuvhys v bs supply undervoltage lockout hysteresis 0.02 0.3 0.4 td uvbs undervoltage lockout response time v bs steps either from 6.5 v to 2.7 v or from 2.7 v to 6.5v 0.5 20 s i qbs1 v bs supply current static mode, in = 0 v or 5 v 100 a i qbs2 static mode, v bs = 16 v, in = 0 v or 5 v 200 a v bs v bs drop due to output turn-on c bs = 1 f, td ig-in = 3 s, t test = 100 s 210 mv gate driver characteristics i pkso1 peak output source current t j = 25 c 120 250 ma i pkso2 70 150 i pkso3 v bs = 16v , t j = 25 c 250 500 i pkso4 v bs = 16 v 150 300 i ho,off ho off state leakage current guaranteed by design 1 a t r1 output rise time t j = 25 c 0.2 0.4 s t r2 0.3 0.5 t r3 v bs = 16 v, t j = 25 c 0.1 0.2 t r4 v bs = 16 v 0.15 0.3 i pksi1 peak output sink current in = 5 v, t j = 25 c 120 250 ma i pksi2 in = 5 v 70 150 i pksi3 in = 5 v, t j = 25 c v bs = 16 v 250 500 i pksi4 in = 5 v, v bs = 16 v 150 300 t f1 output fall time in = 5 v, t j = 25 c 0.2 0.4 s t f2 in = 5 v, 0.3 0.5 t f3 v bs = 16 v, in = 5 v, t j = 25 c 0.1 0.2 t f4 v bs = 16 v, in = 5 v, 0.15 0.3 table 6. electrical characteristics (continued) unless otherwise specified, v cc = 5 v, v bs = 7 v, v s = 0 v, in = 0 v, res = 5 v, load r = 50 , c = 2.5 nf. unless otherwise noted, these specifications apply for an operating ambient temperature range of -40 c < t amb < 125 c. symbol parameter test condition min. typ. max. unit
L9856 electrical specifications 9/14 t plhi input-to-output turn-on propagation delay (50 % input level to 10 % output level) 0.1 0.35 s t phli input-to-output turn-off propagation delay (50 % input level to 90 % output level) 0.1 0.4 t plhr res-to-output turn-on propagation delay (50 % input level to 10% output level) 0.1 0.4 t phlr res-to-output turn-off propagation delay (50 % input level to 90 % output level) 0.1 0.4 input characteristics v inh high logic level input threshold v cc = 5v 0.6 v cc v v inl low logic level input threshold 0.28 v cc r in high logic level input resistance 60 100 250 k i in high logic level input current v in = v cc 5a v resh high logic level res input threshold v cc = 5v 0.6 v cc v resl low logic level res input threshold 0.28 v cc r res high logic level res input resistance 60 100 250 k i res low logic level input current v res = 0 5 a recharge characteristics t on_rech recharge transistor turn-on propagation delay v s = 5v 3 6 9 s t off_rech recharge transistor turn-off propagation delay 0.1 0.5 s v rech recharge output transistor on- state voltage drop 1 ma forced on recharge path on 0.5 1.2 v deadtime characteristics dt hoff high side turn-off to recharge gate turn-on v cc = 5 v 369 s dt hon recharge gate turn-off to high side turn-on 0.1 0.4 0.7 table 6. electrical characteristics (continued) unless otherwise specified, v cc = 5 v, v bs = 7 v, v s = 0 v, in = 0 v, res = 5 v, load r = 50 , c = 2.5 nf. unless otherwise noted, these specifications apply for an operating ambient temperature range of -40 c < t amb < 125 c. symbol parameter test condition min. typ. max. unit
electrical specifications L9856 10/14 2.5 logic table note: x means independent from signal. table 7. logic table supply voltages and thresholds signals output ho recharge path v cc v bs reset- in- < v ccuv- xx xoffon xxlowxoff on x x x high off on > v ccuv+ > v bsuv+ high low on off > v ccuv+ < vb suv- high low off off
L9856 timing diagrams 11/14 3 timing diagrams figure 3. input/output timing diagram figure 4. reset timing diagram in res ho t plhi recharge off on t off-rech t rx 10% 90% 90% 10% vs dt hon t on-rech t phli dt hoff t fx in res ho t plhi recharge off on t off-rech t rx 10% 90% 90% 10% vs dt hon t on-rech t phli dt hoff t fx in res ho t phlr t plhr in res ho t phlr t plhr
package information L9856 12/14 4 package information in order to meet environmental requirements, st (also) offers these devices in ecopack ? packages. ecopack ? packages are lead-free. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com. figure 5. so-8 mechanical data and package dimensions outline and mechanical data dim. mm inch min. typ. max. min. typ. max. a 1.750 0.0689 a1 0.100 0.250 0.0039 0.0098 a2 1.250 0.0492 b 0.280 0.480 0.0110 0.0189 c 0.170 0.230 0.0067 0.0091 d (1) 4.800 4.900 5.000 0.1890 0.1929 0.1969 e 5.800 6.000 6.200 0.2283 0.2362 0.2441 e1 (2) 3.800 3.900 4.000 0.1496 0.1535 0.1575 e 1.270 0.0500 h 0.250 0.500 0.0098 0.0197 l 0.400 1.270 0.0157 0.0500 l1 1.040 0.0409 k0?8?0?8? ccc 0.100 0.0039 notes: 1. dimensions d does not include mold flash, protrusions or gate burrs. mold flash, potrusions or gate burrs shall not exceed 0.15mm in total (both side). 2. dimension ?e1? does not include interlead flash or protrusions. interlead flash or protrusions shall not exceed 0.25mm per side. so-8 0016023 d
L9856 revision history 13/14 5 revision history table 8. document revision history date revision changes 29-jun-2007 1 initial release. 30-may-2008 2 update features section on page 1. updated table 4: absolute maxi mum ratings on page 6 . updated table 5: recommended operating conditions on page 7 .
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