abstract MLX80153 ot p full bridge motor controller rev 2. 4 page 1 of 6 1 4 - jan - 201 4 1 features overview ? integrated motor controller o full bridge nfet predriver ? double charge pump with programmable nfet gate voltage ? hs nfet and low side nfet control ? synchronous rectification with programmable dead time o 3 high voltage wake up capable ios on rising and falling edge o 3 low voltage ios with multiple configuration options o automotive supply regulator ? standard operating range [7, 18]v, tj=[ - 40, 125]c ? extended operating range [4.5 , 28]v, tj = [ - 40, 150]c ? 45v load dump protected ? s leep current < 5 0ua o autosequenc e 10bit adc with dma avoids need for mcu interrupts to handle sampling. m ultiple input channels ? battery (vsup) and motor supply (vdrain) ? internal temperature sensor (+/ - 15k) ? all ios can be config ured as analog inputs. ? single shot ntc measurement with 3.3v adc reference voltage. o low side shunt amplifier with ? programmable gain , ? programmable o ver current protection and c urrent limiting levels ? synchronised measurements with programmable b lanking time. ? 16bit microcontroller o two 16 bit timers for pwm communication o 16 bit core timer o 512 byte ram o 128 byte data eeprom o 16 kb otp p rogram memory (flash for engineering samples only). ? tssop2 8 exposed pad package o aecq100 automotive qualified , htol a t tj = 150c 2 target applications ? high current d c motor control applications with pwm communication interface . o fuel pump s o hvac blowers o engine cooli ng fans : dual and single fan control possible 3 ordering information part no. temperature code package code optio n code mlx 80153 k ( - 40 to 1 2 5 o c ) (*) go (tssop28 - ep) aaa 000 mlx 80154 engineering samples (tssop28 - ep) (*) operation up to tj=150c possible after review of the mission profile.
abstract MLX80153 ot p full bridge motor controller rev 2. 4 page 2 of 6 1 4 - jan - 201 4 4 block diagram
abstract MLX80153 ot p full bridge motor controller rev 2. 4 page 3 of 6 1 4 - jan - 201 4 5 package data : tssop28 - exposed pad a a1 a2 d e h e l b c p p1 min 0.05 0.85 9.6 0 4.30 6.4 b.s.c 0.65 b.s.c 0.5 0.19 0.09 0 3.00 b.s.c 5.50 b.s.c max 1.10 0.15 0.95 9.8 0 4.50 0.75 0.30 0.20 8 table 1 : mechanical dimensions tssop28_ep, all dimensions in mm figure 1 : package dimensions in mm
abstract MLX80153 ot p full bridge motor controller rev 2. 4 page 4 of 6 1 4 - jan - 201 4 6 pin out description MLX80153 pin number pin name MLX80153 mlx80154 remarks and description MLX80153 1 hvio2 high voltage digital io ( - 2v, +vbat), analog input wake up capable on rising edge. 2 isense_in current sense shunt, negative input 3 isense_p current sense shunt, positive input 4 agnd analog ic ground 5 wd watchdog input 6 v3v 3.3v regulated supply 7 dgnd digital ic ground 8 ti test input (connect to gnd in application), used for flash/otp programming and software debugging 9 n.c. not connected 10 v drain high side vds monitoring input 11 vboost charge pump voltage input 12 n.c. not connected 13 phb motor phase, (sink output of hs driver) 14 hsb high side nfet driver 15 pha motor phase, (sink output of hs driver) 16 hsa high side nfet driver 17 vreg regulated supply voltage (used to drive nfets) 18 lsa low side nfet driver 19 drvgnd ground for ic driver stage 20 cp1 1 st stage charge pump clock output 21 io5_cp2 2 nd stage charge pum p clock output, or low voltage io5 22 n.c. not connected 23 vsup supply input (reverse polarity protection required) 24 hvio1 high voltage digital io ( - 2v, +vbat), analog input wake up capable on rising edge. 25 hvio0 high volt age digital io ( - 2v, +vbat) wake up capable on falling edge. applicable for bidirectional communication 26 n.c. not connected 27 io3 low voltage digital io (3.3v), analog input 28 io4 low voltage digital io (3.3v), analog input tabl e 2 : pin out description
abstract MLX80153 ot p full bridge motor controller rev 2. 4 page 5 of 6 1 4 - jan - 201 4 7 application schematic example note: shown schematics are reference examples that give a realistic indication of typical external components. in actual applications additional components may be required, and component values w ill have to be revised. 7.1 basic pump / fan example ? double charge pump allows controlling hs nfets under low battery conditions. ? h igh side nfet vds monitoring (programmable voltage levels and blanking time ) protects for short circuits to ground. ? phase voltage (bemf) can be measured back via the phase pin. ? applied motor voltage is measured directly on the fet drains via vdrain pin. ? ic can wake up from either a falling or rising edge on one of its h igh voltage inputs .
abstract MLX80153 ot p full bridge motor controller rev 2. 4 page 6 of 6 1 4 - jan - 201 4 7.2 freewheeling nfet control for reduced thermal dissipation applying a full nfet halfbridge allows extend ing the power range for thermally limited pcb designs by another 30% compared to designs with freewheeli ng diode. see below graphs. fig. 1: contributions in power dissipation with freewheeling diode. peak dissipation around 50% duty cycle fig. 2: up to 30% lower peak dissipation with freewheeling nfet. peak dissipation at 80% duty cycle
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