ROHM BD6726FU Technical data

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STRUCTURE Silicon Monolithic Integrated Circuit
PRODUCT SERIES Single-Phase Full-Wave Motor Driver for Fan Motor
TYPE
BD6726FU
FEATURES Pre-driver compatible for external Tr Speed controllable by DC/PWM input PWM soft switching drive Built-in Speed control circuit by rotation speed feedback
ABSOLUTE MAXIMUM RA TINGS
Parameter
Symbol Limit Unit Supply voltage Vcc 20 V Power dissipation Pd 874.7 mW Operating temperature Topr -40 to +100 °C Storage temperature Tstg -55 to +150 °C High side output voltage VOH 36 V Low side output voltage VOL 15 V Low side output current IOL 10 mA
FG output current FG output voltage REF current ability HB current ability
IFG 10 mA
VFG 20 V
IREF 12 mA
IHB 12 mA Input voltage (H+, H-, CS, PWMIN) VIN 7 V ICT and SHIFT current ability IIN 100 μA Junction temperature Tjmax 150 °C
Reduce by 7.0mW/°C over Ta=25°C.
(On 70.0mm×70.0mm×1.6mm glass epoxy board)
This product is not designed for production against radioactive rays.
REV. B
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OPERATING CONDITIONS
Parameter
Symbol
Limit Unit
Operating supply voltage range Vcc 5.0 to 17.0 V Input voltage range 1 (H+, H-) VIN1
Input voltage range 2 (PWMIN) VIN2
0 to Vcc-2.0 V
0 to 7.0 V
0 to VREF V
0 to 6.5 V
less than Vcc=9.0V more than Vcc=9.0V less than Vcc=7.0V
more than Vcc=7.0V Input voltage range 3 (MIN) VIN3 0 to VREF V Input voltage range 4 (FIL) VIN4 0 to VFILH V
ELECTRICAL CHARACTERISTICS (Unless otherwise specified Ta=25°C, Vcc=12V)
Parameter
Symbol
Min. Typ. Max.
Limit
Unit Conditions
Circuit current Icc 3.0 5.4 8.0 mA Hall input hysteresis VHYS ±5 ±10 ±15 mV High side output current IH 5.0 10.5 17.0 mA VOH=12V High side output leak current IHL - - 10 μA VOH=36V Low side output high voltage VLH 9.3 9.5 - V IOL=-5mA Low side output low voltage VLL - 0.5 0.7 V IOL=5mA Lock detection ON time TON 0.18 0.3 0.42 s Lock detection OFF time TOFF 3.6 6.0 8.4 s FG output low voltage VFGL - - 0.3 V IFG=5mA FG output leak current IFGL - - 10 μA VFG=17V OSC low voltage VOSCL 0.8 1.0 1.2 V OSC high voltage VOSCH 2.3 2.5 2.7 V OSC charge current ICOSC -50 -32 -20 μA OSC discharge current IDOSC 20 32 50 μA REF voltage VREF 4.6 5.0 5.4 V IREF=-2mA Hall bias voltage VHB 1.3 1.5 1.7 V IHB=-2mA Current limit voltage VCL 130 160 190 mV MIN bias current IMIN - - 1.0 μA VMIN=0V CS bias current ICS - - 1.0 μA VCS=0V PWMIN bias current IPWM 15 25 35 μA VPWMIN=0V PWMIN input high voltage VPWMH 2.3 - 6.5 V PWMIN input low voltage VPWML 0.0 - 1.0 V FIL output high voltage VFILH 1.3 1.5 1.7 V VPWMIN=0V FIL source current IFILH -25 -15 -10 μA VPWMIN=0V FIL sink current IFILL 10 15 25 μA VPWMIN=VREF VCONT charge current ICVCON -145 -100 -60 μA VCONT discharge current IDVCON 7 11 16 μA VCONT charge/discharge current ratio
RVCON 9.8 10.1 10.4 -
RVCON= (ICVCON+IDVCON)/IDVCON
Soft start time TSS 1.2 2.0 2.8 s
REV. B
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