LV8860V

Ordering number : ENA1818A Bi-CMOS IC LV8860V Overview Fan Motor Driver Single-Phase Full-Wave Driver LV8860V is a driver IC used for single-phase fan motor. High-efficiency and low-noise are realized by reducing reactive power using Silent PWM. The operating range of LV8860V is wide. LV8860V also corresponds to 24V. Therefore, it is optimal for office automation equipment and factory automation equipment. Functions • Single-phase full wave operation by Silent PWM drive. • Speed is controllable by PWM input. • Hall bias output pin. • Integrated Quick Start Circuit. • FG (rotation detection) / RD (lock detection) output pin (open drain output) • Integrated current limiter circuit (limit at IO=450mA with Rf=0.5Ω connection, limit value is determined based on Rf.) • Integrated lock protector circuit and automatic recovery circuit. • Integrated thermal shut-down (TSD) circuit. Specifications Parameter Maximum Ratings at Ta = 25°C Symbol VCC max IOUT max VOUT max VRD/FG max IRD/FG max IRGL max IHB max Conditions Ratings 36 0.7 36 36 10 5 10 Unit V A V V mA mA mA Maximum supply voltage OUT pin output current Output withstand RD/FG output pin withstand RD/FG output maximum current RGL output maximum current HB output maximum current Continued on next page. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for new introduction or other application different from current conditions on the usage of automotive device, communication device, office equipment, industrial equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer ' s products or equipment. N0211 SY 20110811-S00003/81810 SY 20100623-S00001 No.A1818-1/11 LV8860V Continued from preceding page. Parameter PWM input pin withstand Allowable power dissipation Operating temperature Storage temperature Symbol VPWM max Pd max Topr Tstg * On a specified board Conditions Ratings 6 0.8 -40 to +95 -55 to +150 Unit V W ˚C ˚C *Specified board: 114.3mm × 76.1mm × 1.6mm fiberglass epoxy printed circuit board Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Recommended Operating Conditions at Ta = 25°C Parameter Operating supply voltage range Symbol VCC op1 VCC op2 Hall input common phase input voltage range SSW pin input voltage range Input PWM frequency range VICM SSW PWMF range Boot guarantee supply voltage range 0.3 to VRGL-2.0 1.0 to 3.0 20 to 50 V V kHz 6 to 34 V Conditions Recommended supply voltage Ratings 7 to 34 Unit V Electrical Characteristics at Ta = 25°C, VCC = 24V Parameter Circuit consumption current Symbol ICC ICCo RGL pin output voltage RGH pin output voltage HB pin output voltage Output ON resistance Hall input bias current Current limiter PWM pin input Low level PWM pin input High level PWM input minimum pulse width RD/FG output pin Low voltage FG output leakage current FG comparator hysteresis width Output ON time in Lock-detection Output OFF time in Lock-detection Output ON/OFF ratio in Lock-detection Thermal shutdown operating temperature Thermal shutdown hysteresis width VRGL VRGH VHB Ron IHIN VRF VPWML VPWMH TPWM VRD/FG IRDL/FGL ΔVHYS TACT TDET TRTO TSD ΔTSD TRTO=TDET/TACT * Design guarantee * Design guarantee IRD/FG=3mA VRD/FG=24V including offset ±5 0.74 7.0 7.5 ±12 0.95 9.0 9.0 180 40 200 0 2.5 2 0.22 0.3 10 ±18 1.16 11.0 11.0 ˚C ˚C 225 IHB=5mA IO=0.3A, upper and lower ON resistance Active Stand-by 4.7 VCC-4.3 1.16 Conditions Ratings min typ 2.2 1.7 5.0 VCC-4.8 1.25 1.4 max 3.5 2.7 5.3 VCC-5.3 1.28 2.0 1.0 250 1.0 VRGL Unit mA mA V V V Ω μA mV V V μs V μA mV sec sec * Design guarantee: Signifies target value in design. These parameters are not tested in an independent IC. Truth table Operating state Rotation – drive mode IN1 H L H L H L IN2 L H L H L H PWM H OUT1 H L L L L OFF L OUT2 L H L L OFF L OFF FG L OFF L OFF OFF L OFF RD L L L L L OFF OFF Rotation – regeneration mode Stand-by mode Lock protector L L - No.A1818-2/11 LV8860V Package Dimensions unit : mm (typ) 3178B 5.2 16 9 1.2 Pd max - Ta Specified circuit board : 114.3 ×76.1× 1.6mm3 glass epoxy board Allowable power dissipation, Pd max -- W 1.0 0.8 4.4 6.4 0.6 0.5 1 0.65 (0.33) 8 0.15 0.22 1.5max 0.4 0.35 0.2 0 -20 0 20 40 60 80 100 SANYO : SSOP16(225mil) Pin Assignment OUT1 (NC) (NC) VCC RGH PWM FG RD 0.1 (1.3) Ambient temperature, Ta -- C OUT2 RF GND SSW RGL IN2 HB IN1 LV8860V No.A1818-3/11 LV8860V Block Diagram OUT1 1 16 OUT2 (NC) 2 15 RF (NC) 3 Level Shift Current Limitter 14 GND VCC 4 High Side Regulator Duty Controller 13 Low Side Regulator SSW RGH 5 12 RGL PWM 6 OSC 11 IN2 FG 7 Lock Detevtion TSD HB 10 HB RD 8 9 IN1 No.A1818-4/11 LV8860V PIN function *On circuit bord, means V CC , NO. 1 Pin name OUT1 means RGL. Function Equivalent circuit Output pin for motor driver 16 OUT2 1 16 2 3 4 5 NC NC VCC RGH No connect pin No connect pin Power supply pin Regulator voltage output pin for the upper output Tr driver 5 6 PWM Input pin for PWM control * OPEN: pull up to High * When input is High → output is High When input is Low → output is Low 6 7 FG FG (rotation detection) pulse output pin 8 RD RD (lock detection) signal output pin * During rotation → output is Low During lock → output is High 7 8 9 IN1 Hall input + pin 11 IN2 Hall input - pin 9 11 10 HB Hall bias output pin 10 Continued on next page. No.A1818-5/11 LV8860V Continued from preceding page. NO. 12 Pin name RGL lower output Tr driver Function Regulator voltage output pin for internal circuit and Equivalent circuit 12 13 SSW Voltage input pin for control between soft switches * OPEN: pin voltage is 2V * Soft switch zone is changed by connecting a resistance to RGL or GND to adjust pin voltage. 13 14 15 GND RF Ground pin Resistive connection pin for current limiter 15 Sample Application Circuit 1 2 3 *1 *2 *3 OUT1 (NC) (NC) VCC OUT2 16 RF GND SSW 15 14 13 *6 Rf *4 4 5 RGH ( PWM RGL 12 IN2 HB IN1 11 10 9 ( *7 ) RHB H ) 6 7 8 PWM FG RD *5 *5 *1 *2 *3 *4 *5 *6 *7 When diode Di is used to prevent destruction of IC from reverse connection, make sure to implement capacitor Cr to secure regenerative current route. If kickback at a phase change is greater, insert zener diode between GND and VCC or implement the larger capacitor between GND and VCC mentioned in *1 Make sure to implement enough capacitance 0.1μF or greater between RGH pin and VCC pin for stable performance. Make sure to implement enough capacitance 0.1μF or greater between RGL pin and GND pin for stable performance. FG pin and RD pin are open drain output. Keep the pins open when unused. The current limiter is activated when the current detection resistor voltage exceeds 225mV between RF and GND. Where Rf=0.5Ω, current limiter is activated at IO=450mA. Setting is made using Rf resistance. Hall element outputs stable hall signal with good temperature characteristic when it is biased with constant voltage from HB pin. If you wish to alleviate heating of IC, do not use HB pin. When you do not use this Pin (Pin HB), pull down with resistor of around 10kΩ (recommended). No.A1818-6/11 LV8860V Adjustment of a direction between soft switches 12PIN RGL OUT1 Rw Wide 13PIN SSW OUT2 14PIN GND 12PIN RGL OUT1 Medium 13PIN SSW OUT2 14PIN GND 12PIN RGL OUT1 Narrow 13PIN SSW Rn OUT2 14PIN GND (phase switch) LV8860V realizes high efficiency and low noise by controlling reactive power using soft switch before and after phase switch by variable PWM-duty. The width of soft switch before and after switching is controlled by SSW pin voltage. Therefore, it is adjustable by connecting an external resistance to SSW. Adjustment voltage range is between 1V and 3V. * Without adjustment (SSW is open * this is a reference width of soft switch) … with IC’s internal resistance: VSSW = 5 × 60k / (90k + 60k) = 2V * To widen width of soft switch (connect Rw (resistance) between RGL and SSW.) … VSSW = 5 × 60k / (60k + 1 / (1/Rw + 1/90k)) ex.) Connect Rw = 75kΩ VSSW = 5 × 60k / (60k + 1 / (1/75k + 1/90k)) = 2.97V * To narrow soft switch width (connect Rn (resistance) between SSW and GND.) … VSSW = 5 × ((1 / (1/Rn + 1/60k)) / (90k + 1 / (1/Rn + 1/60k))) ex.) Connect Rn = 39kΩ VSSW = 5 × ((1/(1/39k + 1/60k)) / (90k + 1 / (1/39k + 1/60k))) = 1.04V No.A1818-7/11 LV8860V Setting value of input signal amplitude The width of soft switch in LV8860V is controlled by input signal, IN1/IN2. The difference of input voltage ( VINp-p ) that creates width of soft switch is adjustable by SSW voltage (VSSW) of an external pin. The range of SSW input voltage is between 1V and 3V. Difference of input signal amplitude in VSSW range: • When VSSW = 1V (min), VINp-p = 30mV → make sure to input Hall signal with amplitude difference greater than 30mV. • When VSSW = 2V (open), VINp-p = 90mV → make sure to input Hall signal with amplitude difference greater than 90mV. • When VSSW = 3V (max), VINp-p = 150mV → make sure to input Hall signal with amplitude difference greater than 150mV. * When input signal amplitude is greater than VINp-p (as shown in Fig. A below). Width of soft switch is defined as shown in Fig. A * When input signal amplitude is less than VINp-p (as shown in Fig. B below). Since input signal is within the range of VINp-p in all rotations, the entire zone is the soft switch zone. Consequently, IC does not operate properly. For such reason, make sure to input Hall signal with enough amplitude difference to SSW setting value so that IC operates properly. IN1 IN2 Input Signal VINp-p =( VIN1 - VIN2 ) Between Soft Switches Fig.A IN1 IN2 Input Signal VINp-p =( VIN1 - VIN2 ) Between Soft Switches Fig.B No.A1818-8/11 LV8860V Description of operation • PWM speed control waveform PWM 100% ONDUTY 0% Low Speed High Speed Stop PWM Control Variable Speed Full Speed FG VCC PWM IN1-IN2 OUT1 OUT2 Startup Support (Duty = 50%) Full Speed PWM Control Variable Speed No.A1818-9/11 LV8860V • Lock protection operation waveform Motor Lock Motor Re-rotation IN1 - IN2 OUT1 OUT2 RD FG TDET (Motor Lock Protection) TACT (Stand-by for FG-pulse) Startup Support • Stand-by mode operation waveform Input PWM duty = 0% Input PWM duty = x% PWM IN1 - IN2 OUT1 OUT2 FG Ditecting time for Stand-by mode Stand-by mode Startup Support No.A1818-10/11 LV8860V SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of November, 2011. Specifications and information herein are subject to change without notice. PS No.A1818-11/11