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BH6799FVM Dataheets PDF



Part Number BH6799FVM
Manufacturers Rohm
Logo Rohm
Description Single-Phase Full-Wave Motor Driver
Datasheet BH6799FVM DatasheetBH6799FVM Datasheet (PDF)

TECHNICAL NOTE DC Brushless Motor Driver Series for Cooling Fans Low-voltage Single-phase Full-wave DC Brushless Fan Motor Drivers BH6766FVM, BD6989FVM, BH6799FVM, BH6789FVM ●Description This is the summary of models that suit for notebook PC cooling fan. They employ Bi-CMOS and Bi-CDMOS process, and realize low ON resistor, low power consumption, and quiet drive. They also incorporate lock protection and automatic restart circuit which does not require external capacitor. ●Features 1) Soft swi.

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TECHNICAL NOTE DC Brushless Motor Driver Series for Cooling Fans Low-voltage Single-phase Full-wave DC Brushless Fan Motor Drivers BH6766FVM, BD6989FVM, BH6799FVM, BH6789FVM ●Description This is the summary of models that suit for notebook PC cooling fan. They employ Bi-CMOS and Bi-CDMOS process, and realize low ON resistor, low power consumption, and quiet drive. They also incorporate lock protection and automatic restart circuit which does not require external capacitor. ●Features 1) Soft switched drive 2) Incorporating lock protection and automatic restart circuit(BD6989FVM、BH6799FVM、BH6789FVM) 3) Rotating speed pulse signal (FG) output (BD6989FVM、BH6799FVM、BH6766FVM) 4) Lock alarm signal (AL) output (BH6789FVM) 5) PWM speed control (BD6989FVM) 6) MSOP8 compact package ●Applications For compact 5V fan such as notebook PC cooling fan ●Lineup Low voltage single-phase full wave PWM speed control Lock protection circuit incorporated FG output BD6989FVM PWM speed control not available Lock protection circuit incorporated Lock protection circuit not incorporated FG output BH6799FVM AL output BH6789FVM FG output BH6766FVM Jan. 2007 ●Absolute maximum ratings ◎BD6989FVM Parameter Symbol Limit Supply voltage Vcc 10 Power dissipation Pd 585* Operating temperature Topr -40~+105 Storage temperature Tstg -55~+150 Output voltage Vomax 10 Output current Iomax 700** FG signal output current IFG 10 FG signal output voltage VFG 10 Junction temperature Tjmax 150 * ** Reduce by 4.68mW/℃ over 25℃. (70.0mm×70.0mm×1.6mm glass epoxy board) This value is not to exceed Pd. ◎BH6799FVM Parameter Symbol Limit Supply voltage Power dissipation Operating temperature Storage temperature Output current FG signal output current FG signal output voltage Junction temperature Vcc Pd Topr Tstg Iomax IFG VFG Tjmax 7 585* -40~+105 -55~+150 1000** 5 7 150 * Reduce by 4.68mW/℃ over 25℃. (70.0mm×70.0mm×1.6mm glass epoxy board) ** This value is not to exceed Pd. ◎BH6789FVM Parameter Symbol Limit Supply voltage Vcc 7 Power dissipation Pd 585* Operating temperature Topr -40~+105 Storage temperature Tstg -55~+150 Output current Iomax 1000** AL signal output current IAL 5 AL signal output voltage VAL 7 Junction temperature Tjmax 150 * ** Reduce by 4.68mW/℃ over 25℃. (70.0mm×70.0mm×1.6mm glass epoxy board) This value is not to exceed Pd. Unit V mW ℃ ℃ V mA mA V ℃ Unit V mW ℃ ℃ mA mA V ℃ Unit V mW ℃ ℃ mA mA V ℃ 2/16 ◎BH6766FVM Parameter Symbol Limit Supply voltage Vcc 7 Power dissipation Pd 585* Operating temperature Topr -40~+105 Storage temperature Tstg -55~+150 Output current Iomax 600** FG signal output current IFG 5 FG signal output voltage VFG 7 Junction temperature Tjmax 150 * ** Reduce by 4.68mW/℃ over 25℃. (70.0mm×70.0mm×1.6mm glass epoxy board) This value is not to exceed Pd. Unit V mW ℃ ℃ mA mA V ℃ ●OPERATING CONDITIONS ◎BD6989FVM Parameter Operating supply voltage range Hall input voltage range Symbol Vcc VH ◎BH6799FVM, BH6789FVM Parameter Operating supply voltage range Hall input voltage range Symbol Vcc VH ◎BH6766FVM Parameter Operating supply voltage range Hall input voltage range Symbol Vcc VH Limit 2.9~8.0 0~Vcc-1.8 Limit 2.0~6.0 0.4~Vcc-1.1 Limit 2.0~6.0 0.4~Vcc-1.1 Unit V V Unit V V Unit V V 3/16 ●ELECTRICAL CHARACTERISTICS (Unless otherwise specified Ta=25℃,Vcc=5V) ◎BD6989FVM Parameter Symbol Limit Unit Min. Typ. Max. Conditions Characteristics Circuit current Icc - 4 6 mA Fig.1 Input offset voltage VHOFS - - ±6 mV - PWM input H level VPWMH 2.5 - Vcc V Fig.2 PWM input L level VPWML 0 - 0.7 V Fig.3 Input frequency FPWM 0.02 - 50 kHz - Output voltage Io=250mA VO - 0.4 0.6 V FIg.4,5 Upper and Lower total Input-output Gain GIO 45 48 51 dB - FG low voltage VFGL - - 0.3 V IFG=3mA Fig.6 FG leak current IFGL - - 20 μA VFG=10V Input hysteresis voltage VHYS ±5 ±10 ±15 mV Fig.7 Lock detection ON time TON 0.35 0.50 0.65 sec Fig.8 Lock detection OFF time TOFF 3.5 5.0 6.5 sec Fig.9 ◎BH6799FVM, BH6789FVM Parameter Symbol Limit Unit Min. Typ. Max. Conditions Characteristics Circuit current Icc - 5 8 mA Fig.10 Input offset voltage VHOFS - - ±6 mV - Output voltage VO - 0.32 0.49 V Io=250mA Fig.11,12 Upper and Lower total Input-output Gain GIO 45 48 51 dB - FG low voltage VFGL - - 0.3 V IFG=3mA Fig.13 AL low voltage VALL - - 0.3 V IAL=3mA Fig.14 Input hysteresis voltage VHYS ±5 ±10 ±15 mV Fig.15 Lock detection ON time TON 0.35 0.50 0.65 sec Fig.16 Lock detection OFF time TOFF 3.5 5.0 6.5 sec Fig.17 Hall bias voltage VHB 1.1 1.3 1.5 V IHB=5mA Fig.18 ◎BH6766FVM Parameter Circuit current Input offset voltage Output voltage Input-output Gain FG low voltage Input hysteresis voltage Hall bias voltage Symbol Limit Unit Min. Typ. Max. Conditions Characteristics Icc - 5 8 mA Fig.19 VHOFS - - ±6 mV - Io=250mA VO - 0.6 0.9 V Fig.20,21 Upper and Lowe.


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