Ordering number : ENA0649 LV8080LP Bi-CMOS LSI Two channels Constant-current H-bridge Driver http://onsemi.com Overview The LV8080LP is a two-channel constant-current driver that supports low-voltage operation. It is optimal for constant-current drive of stepping motors (AF and zoom) in portable equipment such as camera cell phones. Features • Two channels constant-current H-bridge driver • Built-in power supply switch and position detection comparator for use with a photoreflector • Supports both 2-phase drive and 1-2 phase drive. • Implemented in a low-power MOS IC process. • Ultraminiature easy to solder VCT16 package (2.6 × 2.6mm) • Built-in thermal protection and low-voltage sensing circuits Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Output voltage Input voltage Ground pin source current Allowable power dissipation Symbol Conditions VCC, VM max VOUT max VIN max IGND Pd max Ratings Unit 6.5 OUT1, OUT2, OUT3, OUT4 CONT, IN V 6.5 V -0.3 to +6.5 V Per channel 400 mA Mounted on a circuit board.* 700 mW Operating temperature Topr -30 to +85 °C Storage temperature Tstg -40 to +150 °C * Specified circuit board : 40×50×0.8mm3 : 4-layer (2S2P) glass epoxy printed circuit board Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Semiconductor Components Industries, LLC, 2013 June, 2013 O1007 MS PC 20061128-S00006 No.A0649-1/8 LV8080LP Allowable Operating Ratings at Ta = 25°C Parameter Symbol Supply voltage VCC High-level input voltage VIH Low-level input voltage VIL Conditions Ratings Unit 2.5 to 6.0 CONT, IN V 0.6VCC or more V Up to 0.2VCC V Electrical Characteristics at Ta = 25°C, VCC = 3.0V Parameter Symbol Ratings Conditions min Current drain ICCO EN = 0V ICCO1 typ Unit max 0.1 1 μA mA EN = 3V 0.7 1 Ron1 VCC = 3.0V (High and low side total) EN = 3.0V, IOUT = 100mA 2.0 3.0 Ω Ron2 VCC = 5.0V (High and low side total) EN = 5.0V, IOUT = 100mA 1.50 2.0 Ω Constant-current output 1 IOUT1 Between RFG and ground : 1Ω 95 100 105 mA Constant-current output 2 IOUT2 Between RFG and ground : 0.5Ω 190 200 210 mA 1.3 3 μs 0.25 0.65 μs 1.0 1.06 V Output on resistance (Design specification) Output turn-on time Traise With RFG1 and RFG2 shorted to ground (Design specification) Output turn-off time Tfall With RFG1 and RFG2 shorted to ground (Design specification) Position detection voltage VH (high level) Position detection voltage VL 0.74 0.8 HYS 0.165 0.18 V (low level) Detection voltage hysteresis PI/PR pin current 0.195 IPI/PR Input current IIN VIN = 3V 15 V 20 mA 30 μA Note : The design specification items are design guarantees and are not measured. Package Dimensions Pin Assignment unit : mm (typ) 3318 (VCT16) TOP VIEW SIDE VIEW BOTTOM VIEW (0.125) VCC 16 15 PI/PR COMPOUT 14 13 OUT1 1 12 COMPIN OUT2 2 11 GND OUT3 3 10 CONT OUT4 4 9 (0.13) 2.6 RFG1 16 0.4 2.6 (C0.116) 2 1 0.5 LASER MARKED INDEX (0.55) (Top View) 6 7 RFG2 IN3 IN4 8 IN1 0.25 (0.035) 0.8 SIDE VIEW 5 IN2 SANYO : VCT16(2.6X2.6) No.A0649-2/8 LV8080LP Block Diagram VCC IN1 STM IN2 IN3 L O G I C IN4 VM RFG1 CONT 0.1V 1.0V LVS COMPIN COMPOUT PI/PR TSD GND RFG2 Constant-current calculation : IOUT = 0.1 ÷ RF Example : When an IOUT of 100mA is required, RF must be 1Ω. Usage Notes The constant current is set by the resource RF connected between RFG and ground according to the formula shown above. Truth Table Input IN1 Output IN2 IN3 IN4 Low Low Low Low Low High High Low High High - - - - Low High High Low High High OUT1 OUT3 OUT4 Off Off Off Off Low High Channel 2, reverse High Low Channel 2, forward Low Low Channel 2, brake mode Off Off Low High High Low Low Low Off Mode OUT2 Off Standby mode Channel 1, reverse Channel 1, forward Channel 1, brake mode Note : The "-" input unstable state. When off, a high-impedance state. • The ENA goes to the standby state with a low-level input, and to the operating state with a high-level input. • The control input switches the forward/reverse mode. No.A0649-3/8 LV8080LP Pin Description Pin No. Pin Name Description 1-4 : Output pins 1 OUT1 2 OUT2 H-bridge type output pins 3 OUT3 Pins 1 and 2 are paired and pins 3 and 4 are paired. 4 OUT4 5 RFG2 16 RFG1 Equivalent Circuit VCC 5, 16 : Current sensing resistor connection pins 1 Connect the current sensing resistor between these 2 pins and ground to detect the output currents for constant current control. Pin 16 corresponds to the output from pins 1 and 2 and pin 5 to the output from pins 1 and 2. + 10kΩ 5 0.1V 6 IN3 7 IN4 8 IN1 9 IN2 10 CONT Logic input pins VCC 10kΩ 6 200kΩ GND 11 GND Ground 12 COMPIN Photo reflector position sensing comparator input VCC 1kΩ 12 GND 13 COMPOUT Photo reflector position sensing comparator output This pin serves as an open-collector output of the NPN 1kΩ 13 transistor. GND Continued on next page. No.A0649-4/8 LV8080LP Continued from preceding page. Pin No. 14 Pin Name PI/PR Description Equivalent Circuit A switch, with NMOS open-drain output, used to turn VCC on/off the power supply of the position sensor unit. When using this switch, connect the position sensor unit between this pin and the VCC pin. On/off control of this switch is accomplished by CONT 6 pin. Setting the CONT pin high turns on the switch. GND 15 VCC Power supply pin Timing Chart (1) Stepper motor timing chart Timing chart for 2-phase drive IN1 IN2 IN3 IN4 Channel 1 output mode Standby Channel 2 output mode Standby Forward Reverse Forward Forward Reverse Reverse Forward Forward Standby Reverse Forward Standby Forward Standby (2) Timing chart for 1-2 phase drive (Slow decay mode) IN1 IN2 IN3 IN4 Channel 1 output mode Standby Channel 2 output mode Standby Forward Brake Forward Reverse Brake Brake Reverse Brake Forward Standby No.A0649-5/8 LV8080LP Photosensor Position Detection Application Circuit Example (a) Application circuit Sensor power supply VCC Microcontroller power supply 10kΩ Tr COMPIN COMPOUT IC internal circuits : Position detection circuit IC peripheral circuits : Position sensor block (b) Timing chart VCC CONT 1.00V Hysteresis : 0.2 V COMPIN Transistor drive region Microcontroller power supply COMPOUT VCC PI/PR No.A0649-6/8 LV8080LP ICCO – VCC ICCO1 – VCC 1.0 90 0.9 80 0.8 Current drain, ICCO1 – mA Current drain, ICCO – nA 100 70 60 50 40 30 20 10 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 4 5 6 7 0 0 8 Supply voltage, VCC – V 1 2 3 4 5 6 7 Supply voltage, VCC – V Output on resistance (High and low side total) Constant-current output (Between RFG and ground : 1Ω) 1.5 0.105 1.4 0.104 1.3 1.2 Output current, IO – A 0.103 1.1 Vsat – V 1 0.9 0.8 0.7 0.6 VCC = 3V 0.5 0.4 0.3 0.101 0.1 0.099 0.098 0.097 VCC = 5V 0.2 0.102 0.096 0.1 0 0.095 0 0.1 0.2 0.3 0.4 0.5 0.6 0 Output current, IO – A 3.5 2 3 4 5 6 7 Supply voltage, VCC – V Position detection circuit threshold voltage PI/PR pin current (VCC = 3V/5V) 0.4 0.35 PI/PR pin voltage – V 3 Output voltage, VO – V 1 2.5 2 1.5 1 0.5 0.3 0.25 0.2 VCC = 3V 0.15 VCC = 5V 0.1 0.05 0 0.8 0 0.85 0.9 0.95 1 1.05 Input voltage, VIN – V 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02 PI/PR pin current – A Input current (VIN = 3V) 50 45 Input current, IIN – μA 40 35 30 25 20 15 10 5 0 0 1 2 3 4 5 6 7 Supply voltage, VCC – V No.A0649-7/8 LV8080LP ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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