BD6995FV-GE2

Datasheet DC Brushless Fan Motor Drivers Multifunction Single-phase Full-wave Fan Motor Driver BD6995FV General Description Key Specifications BD6995FV is a 1chip driver for 12V single-phase full-wave fan motor. This IC employs the Bi-CDMOS process and soft switching drive, low power consumption and quiet drive is provided.     Features           Input Voltage Range: 4.3V to 17V Operating Temperature Range: -40°C to +105°C Output Voltage (High and Low Total): 0.6V(Typ) at 0.4A Output Current: 1.2A(Max) Package SSOP Small Package PWM Soft switching Drive Standby Function Speed Controllable by DC Input Quick Start OSC Select Function (Triangle OSC or Saw OSC) Signal Select Function (Rotation Speed Pulse Signal: FG or Lock Alarm Signal: AL) Signal Output Lock Protection and Automatic Restart (Without External Capacitor) Current Limit W(Typ) x D(Typ) x H(Max) 5.00mm x 6.40mm x 1.35mm SSOP-B16 SSOP-B16 Applications  Fan motors for general consumer equipment like Desktop PC, Projector, etc. Typical Application Circuit M ＋ 1 RNF OUT1 16 2 OUT2 GND 15 3 VCC SELO 14 4 MIN SELS 13 5 TH 6 OSC H– 11 7 OSCH HB 10 8 SIG H+ － REF 12 PWM SIG 〇Product structure : Silicon monolithic integrated circuit .www.rohm.com © 2016 ROHM Co., Ltd. All rights reserved. TSZ22111 • 14 • 001 H 9 〇This product has no designed protection against radioactive rays 1/25 TSZ02201-0H1H0B101580-1-2 24.Jun.2016 Rev.001 BD6995FV Pin Configuration Pin Description P/No. P/Name (TOP VIEW) RNF 1 16 OUT1 OUT2 2 15 GND VCC 3 14 SELO MIN 4 13 SELS TH 5 12 REF OSC 6 11 H– OSCH 7 10 HB SIG 8 9 H+ Figure 1. Pin Configuration Function Output current detecting resistor connection 1 RNF 2 3 4 5 6 OUT2 VCC MIN TH OSC 7 OSCH 8 SIG 9 10 11 12 H+ HB H– REF 13 SELS 14 SELO 15 16 GND OUT1 terminal (motor ground) Motor output 2 terminal Power supply terminal Minimum output duty setting terminal Output duty control input terminal Oscillating capacitor connection terminal Resistor connection terminal for capacitor charge (use only for Saw OSC) Signal output terminal (Rotation speed pulse signal: FG or Lock alarm signal: AL) Hall + input terminal Hall bias terminal Hall – input terminal Reference voltage output terminal Signal select terminal (Rotation speed pulse signal: FG or Lock alarm signal: AL) OSC select terminal (Triangle OSC or Saw OSC) Ground terminal Motor output 1 terminal Block Diagram 1 2 OUT1 RNF OUT2 GND 16 15 INTERNAL REG 3 4 5 CURRENT LIMITER VCC PRE DRIVER MIN TH FUNCTION SELECTOR SELO FUNCTION SELECTOR SELS REF REF 14 13 12 CONTROL LOGIC 6 7 8 OSCH SIG HALL COMP H– OSC OSC QUICK START SIGNAL OUTPUT HALL BIAS LOCK PROTECT TSD 11 HB 10 H+ 9 Figure 2. Block Diagram I/O Truth Table Hall Input H+ H– H L L H OUT1 L H Driver Output OUT2 SIG(FG) H Hi-Z L L H; High, L; Low, Hi-Z; High impedance SIG output is open-drain type. Motor State OUT1/2 SIG(FG) SIG(AL) Rotating Locking Standby Hi-Z Hi-Z L Hi-Z L L; Low, Hi-Z; High impedance SIG output is open-drain type. www.rohm.com © 2016 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 2/25 TSZ02201-0H1H0B101580-1-2 24.Jun.2016 Rev.001 BD6995FV Absolute Maximum Ratings Parameter Symbol Rating Unit VCC 20 V Supply Voltage Power Dissipation 0.88 (Note 1) Pd W Operating Temperature Range Topr -40 to +105 °C Storage Temperature Range Tstg -55 to +150 °C Output Voltage VO 20 V Output Current IO 1.2 (Note 2) A VSIG 20 V Signal Output Current ISIG 10 mA Reference Voltage(REF) Output Current IREF 5 mA Hall Bias(HB) Output Current 1 IHB1 10 (Note 3) mA Hall Bias(HB) Output Current 2 IHB2 5 (Note 4) mA Input Voltage(H+, H–, TH, MIN, SELO, SELS) VIN 7 V Junction Temperature Tj 150 °C Signal Output Voltage (Note 1) Derate by 7.1mW/°C if operating over Ta=25°C. (Note 2) Do not exceed Pd. (Note 3) Ta=0°C or Higher. (Note 4) Less than Ta=0°C. Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. Thermal Resistance(Note 1) Parameter Symbol Thermal Resistance (Typ) 1s(Note 3) Unit SSOP-B16 Junction to Ambient θJA 140.9 °C/W Junction to Top Characterization Parameter(Note 2) ΨJT 6 °C/W (Note 1) Based on JESD51-2A(Still-Air) (Note 2) The thermal characterization parameter to report the difference between junction temperature and the temperature at the top center of the outside surface of the component package. (Note 3) Using a PCB board based on JESD51-3. Layer Number of Measurement Board Single Material Board Size FR-4 114.3mm x 76.2mm x 1.57mmt Top Copper Pattern Thickness Footprints and Traces 70μm Recommended Operating Conditions Parameter Supply Voltage Range Input Voltage Range 1 (H+, H–) (VCC≥9V) Input Voltage Range 1 (H+, H–) (VCCVOSCH) restarts by torque ON voltage (VTHVOSCH), this function is enable. (1) When torque OFF voltage is input during motor rotation: The lock protection function is disabled. Restart failure is prevented. (2) When torque OFF voltage is input during motor rotation and 0.5 second (Typ) passed from the last hall input signal change: IC goes to standby mode. (Lock protection function remains disabled.) In standby mode, OUT1 and OUT2 and SIG (FG) become Hi-Z logic and SIG (AL) becomes L logic. When torque ON voltage is inputted at the standby mode, the motor can restart (AL logic is L). Timing chart is shown in Figure 38. (3) When torque OFF voltage is input during lock protection: Since 0.5 second (Typ) passed from the last hall input signal change, IC goes to standby mode immediately. (Note) When torque OFF voltage is input in a timing same as lock protection, IC goes to standby mode immediately. Because OUT1 and OUT2 become Hi-Z logic, when coil current is left, current returns to power supply. When the above mentioned timing is assumed, please take measures of item2 of safety measures or please increase the value of the filter of TH terminal in an application circuit. (More than 20kΩ, 1μF) Motor restart Motor idling High SIG(FG) Low TH OSCH Typ 500μs Enable Quick Start Lock Protection Function Standby Disable Enable Typ 0.5s Standby Internal signal Typ 5ms Torque OFF Stand by Disable Torque ON Stand by release : High impedance Figure 38. Timing chart of Quick start and Standby www.rohm.com © 2016 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 15/25 TSZ02201-0H1H0B101580-1-2 24.Jun.2016 Rev.001 BD6995FV 4. Hall Input Setting (1) Hall Input Setting Hall input voltage range is shown in operating conditions. The input voltage of a hall comparator is input in "hall input voltage range" including signal amplitude. The input current to Hall element can be adjusted with R1 resistor. Hall input upper limit H– Hall bias current IH[A] = VHB[V] / (RH+R1)[Ω] IH 3V (Vcc>9V) Vcc/3V (Vcc Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should be avoided. Resistor Transistor (NPN) Pin A Pin B C E Pin A N P+ P N N P+ N Parasitic Elements N P+ N P N P+ B N C E Parasitic Elements P Substrate P Substrate Parasitic Elements Pin B B GND Parasitic Elements GND GND N Region close-by GND Figure 52. Example of monolithic IC structure 13. Ceramic Capacitor When using a ceramic capacitor, determine the dielectric constant considering the change of capacitance with temperature and the decrease in nominal capacitance due to DC bias and others. 14. Area of Safe Operation (ASO) Operate the IC such that the output voltage, output current, and power dissipation are all within the Area of Safe Operation (ASO). 15. Thermal Shutdown Circuit(TSD) This IC has a built-in thermal shutdown circuit that prevents heat damage to the IC. Normal operation should always be within the IC’s maximum junction temperature rating. If however the rating is exceeded for a continued period, the junction temperature (Tj) will rise which will activate the TSD circuit that will turn OFF all output pins. When the Tj falls below the TSD threshold, the circuits are automatically restored to normal operation. Note that the TSD circuit operates in a situation that exceeds the absolute maximum ratings and therefore, under no circumstances, should the TSD circuit be used in a set design or for any purpose other than protecting the IC from heat damage. www.rohm.com © 2016 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 22/25 TSZ02201-0H1H0B101580-1-2 24.Jun.2016 Rev.001 BD6995FV Ordering Information B D 6 9 9 5 Part Number F V - Package FV: SSOP-B16 GE2 Packaging and forming specification G: Halogen free E2: Embossed tape and reel Marking Diagrams SSOP-B16 (TOP VIEW) D 6 9 9 5 Part Number LOT Number 1PIN Mark www.rohm.com © 2016 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 23/25 TSZ02201-0H1H0B101580-1-2 24.Jun.2016 Rev.001 BD6995FV Physical Dimension, Tape and Reel Information Package Name www.rohm.com © 2016 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 SSOP-B16 24/25 TSZ02201-0H1H0B101580-1-2 24.Jun.2016 Rev.001 BD6995FV Revision History Date Revision 24.Jun.2016 001 Changes New Release www.rohm.com © 2016 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 25/25 TSZ02201-0H1H0B101580-1-2 24.Jun.2016 Rev.001 Notice Precaution on using ROHM Products 1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). 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Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice-PGA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.003 Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. 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