AN44075A PANASONIC
Document overview
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Technical content
Datasheet sections
1Publication date: October 2008 SDL00013BEB DATA SHEET AN44075APart No.
Overview AN44075A is a one channel H-bridge driver IC. 1-ch. DC motor can be controlled by a single driver IC. Features y Built-in thermal protection and low voltage detection circuit y Built-in over current protection (when external resistance is added to pin 7 and pin 8.) y Built-in 5 V power supply Applications y IC for DC motor drives Package y 34 pin plastic small outline package with back heat sink (SOP type) Type y Bi-CDMOS IC
Application Circuit Example (Block Diagram) 0.01 μF 0.01 μF 0.1 μF M CHARGE PUMP REG VM TSD UVLO BLANK OSCPWM ref_b ref_a Gate circuit 100 kΩ BC1 BC2 STBY AIN2 AIN1 NFAULT SEL TJMON APWM S5VOUT VREFA VREFB VPUMP AOUT2 RCSA1 RCSA2 AOUT1 VM2 VM1 GND Level shift A Level shift B ref_b ref_a Comp 50 kΩ 51 kΩ S5VOUT 100 kΩ 47 μF 0.1 μF Note) This application circuit is shown as an example but does not guarantee the design for mass production set.
Pin Descriptions not used—N.C.15 Motor drive output 1OutputAOUT114 not used—N.C.13 not used—N.C.12 not used—N.C.11 not used—N.C.10 Die pad groundGroundGND9 Current detection 2Input / OutputRCSA28 Current detection 1Input / OutputRCSA17 not used—N.C.6 not used—N.C.5 not used—N.C.4 Motor drive output 2OutputAOUT23 not used—N.C.2 Motor power supply 2Power supplyVM21 VBE monitor OutputTJMON34 not used—N.C.33 Abnormal detection outputOutputNFAULT32 Brake mode inputInputAIN231 Forward-reverse inputInputAIN130 PWM inputInputAPWM29 Standby inputInputSTBY28 Test mode inputInputSEL27 Die pad groundGroundGND26 Signal groundGroundGND25 Internal reference voltage (5 V output)OutputS5VOUT24 Load short threshold inputInputVREFB23 Peak current setting input InputVREFA22 not used—N.C.21 not used—N.C.20 Charge pump capacitor connection 1OutputBC119 Charge pump capacitor connection 2 OutputBC218 Charge pump circuit outputOutputVPUMP17 Motor power supply 1Power supplyVM116 DescriptionTypePin namePin No.
Absolute Maximum Ratings Operating Supply Voltage Range 10.0 to 35.0VM Range ⎯VSupply voltage range NoteUnitSymbolParameter *2, *3A3.0IfFlywheel diode current (pin 3, pin 14)7 *2, *3A±3.0IOUTMotor drive current (pin 3, pin 14) 6 *2V37VOUTOutput pin voltage (pin 3, pin 14)5 *5°C–55 to +150TstgStorage temperature4 NoteUnitRatingSymbolParameterA No. *5°C–20 to +70ToprOperating ambient temperature3 *4W0.466PDPower dissipation2 *1V37VMSupply voltage (pin 1, pin 16)1 Note) *1: The range under absolute maximum ratings, power dissipation. *2: Do not apply external currents to any pin specially mentioned. For circuit currents, (+) denotes current flowing into the IC and (–) denotes current flowing out of the IC. *3: Rating when cooling fin on the back side of the IC is connected to the GND pattern of the glass epoxy 4-layer board. (GND area: 2nd-layer or 3rd-layer: more than 1 500 mm2 ) In case of no cooling fin on the back side of the IC, rating current is 1.5 A on the glass epoxy 2-layer board. *4: Power dissipation shows the value of only package at T a = 70°C. When using this IC, refer to the • PD –T a diagram in the Technical Data and use under the condition not exceeding the allowable value. *5: Expect for the storage temperature and operating ambient temperature, all ratings are for Ta = 25°C. Note) The values under the condition not exceeding the above absolute maximum ratings and the power dissipation.
—μs——2tWInput min. pulse width —V5—2.1VPWMHHigh-level PWM input voltage —V5—2.1VSTBYHHigh-level STBY input voltage —μA10—–10IINLLow-level IN input current —μA10—–1 0IINHHigh-level IN input current —V0.6—0VINLLow-level IN input voltage —V5—2.1VINHHigh-level IN input voltage —Ω2718—ZS5VOUTOutput impedance —V5.55.04.5VS5VOUTReference voltage —mA127.3—IM2 Supply current 2 (with circuit turned on) —μA10565—IM1Supply current 1 (sleep) Standby input VAIN1 = VAIN2 = 0 V12 VAIN1 = VAIN2 = 5 V11 —10 IN input ΔIS5VOUT = –5 mA8 IS5VOUT = –2.5 mA7 VSTBY =5 V6 VSTBY =0 V5 Power supply Low-level PWM input voltage18 VSTBY = 5 V Low-level output saturation voltage2 —kHz200———fPWMPWM input max. frequency High-level PWM input current19 —V1.51.00.5IDI = ±1 AVDIFlywheel diode forward voltage —μA10—–10VAPWM = 0 VIPWMLLow-level PWM input current —22 —μA80—30ISTBYHHigh-level STBY input current —μA2010—VM = 37 V, VSRCS = 0 VILEAKOutput leakage current4 —13 —μA150—60VAPWM = 5 VIPWMH —V0.6—0—VSTBYLLow-level STBY input voltage14 —V0.650.50—ISA1 = ISA2 = 1 AVOL —μA10—–10VSTBY = 0 VISTBYLLow-level STBY input current16 PWM input —V0.6—0VPWML Output drivers —V—VM –0 . 3 6 VM –0 . 4 7ISA1 = ISA2 = –1 AVOHHigh-level output saturation voltage1 Limits Typ Unit Max No teMin ConditionsSymbolParameterB No. Electrical Characteristics at VCC = 24 V Note) Ta = 25°C±2°C unless otherwise specified.
—mV525500475VREFA = 5.5 V, VREFB = 2.5 VVTH2Comp threshold 2 PWM frequency24 —μs4.52.51.5VREFA = 0 V, VREFB = 5 VTBPulse blanking time —mV520500480VREFA = VREFB = 5 VVTH1Comp threshold 126 —V0.4——INFLT =1m AVNFLTNFAULT output voltage28 —kHz352617VREFA = 0 V, VREFB = 5 VfPWM Peak current detection / over current protection —μA12510083VREFA = VREFB = 5 VIREFInput bias current23 Limits Typ Unit Max No teMin ConditionsSymbolParameterB No. Electrical Characteristics at VCC = 24 V (continued) Note) Ta = 25°C±2°C unless otherwise specified.
—V—8.6—UVLO2Protection release voltage —V/μs—330—Falling edgeVTfOutput slew rate 2 —ºC—150——TSDon Thermal protection operating temperature32 V—8.0——UVLO1Protection operating voltage ºC—40——ΔTSDThermal protection hysteresis width Thermal protection Low voltage protection μs—0.45——TDDead time V/μs—270—Rising edgeVTrOutput slew rate 1 Output drivers Limits Typ Unit Max No teMin ConditionsSymbolParameterB No. Electrical Characteristics (Reference values for design) at VCC = 9 V Note) Ta = 25°C±2°C unless otherwise specified. The characteristics listed below are reference values for design of the IC and are not guaranteed by inspection. If a problem does occur related to these characteristics, Panasonic will respond in good faith to user concerns.
Technical Data y Control mode (truth table) INPUT ModeAOUT2AOUT1APWMAIN2AIN1STBY Standby Stop Reverse Forward Short brake "L" "H" "H" "L" —"L" OFFOFF——"L" OFFOFF"L"— "H" "H""L" "H" "H" "H"— OUTPUT Short detect on Short detect off ModeSEL "L" "H" INPUT OUTPUT
Request for your special attention and precautions in using the technical information and semiconductors described in this book (1) If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and regulations of the exporting country, especially, those with regard to security export control, must be observed. (2) The technical information described in this book is intended only to show the main characteristics and application circuit examples of the products. No license is granted in and to any intellectual property right or other right owned by Panasonic Corporation or any other company. Therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any other company which may arise as a result of the use of technical information described in this book. (3) The products described in this book are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the prod- ucts may directly jeopardize life or harm the human body. Any applications other than the standard applications intended. (4) The products and product specifications described in this book are subject to change without notice for modification and/or im- provement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions (operating power supply voltage and operating environment etc.). Especially, please be careful not to exceed the range of absolute maximum rating on the transient state, such as power-on, power-off and mode-switching. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products. (6) Comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (ESD, EOS, thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. When using products for which damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages. (7) This book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of our company. 20080805