AD8813 AITSEMI | Alldatasheet
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AiT Semiconductor Inc. AD8813 www.ait-ic.com MOTOR DRIVER 2.1V~6.8V, LOW-VOLTAGE DC MOTOR DRIVER REV1.0 - NOV 2023 RELEASED - - 1 - DESCRIPTION FEATURES The AD8813 is a low -voltage DC motor driver IC specifically designed for low -voltage operating systems. It integrates 4 low -resistance MOS and forward, reverse, brake, and stop functions. AD8813 protection function, when the output short circuit occurs, the output current increases instantaneously, the circuit power consumption rises sharply, and the chip temperature rises sharply, when the chip temperature exceeds the maximum temperature point set by the internal temperature protection circuit, the internal circuit turns off the built-in power switch to cut off the load current. The AD8813 is available in SOT-26 package.
ORDERING INFORMATION
SPQ:3,000pcs/Reel AD8813E6R AD8813E6VR Note V: Halogen free Package R: Tape & Reel AiT provides all RoHS products Low-Voltage DC Motor Operating Voltage Range: 2.1V~6.8V. Low Operating Current: 6.5uA (TYP.) Low Standby Current: 0.1uA (TYP.) Continuous Working Current: 1.0A Peak Current:1.5A SOT-26 Package APPLICATION Smart Meter Handheld Devices Tooth Blush Blood Pressure Camera TYPICAL APPLICATION
AiT Semiconductor Inc. AD8813 www.ait-ic.com MOTOR DRIVER 2.1V~6.8V, LOW-VOLTAGE DC MOTOR DRIVER REV1.0 - NOV 2023 RELEASED - - 2 - PIN DESCRIPTION SOT-26, E6 Top View PIN# Symbol Function
1 OUT2 OUTPUT OUT2
2 GND Ground
3 OUT1 OUTPUT OUT1
4 VCC Power Input Pin, Connect a Capacitor of 1uf or Greater between VCC
5 IN1 Logical Input IN1
6 IN2 Logical Input IN2
AiT Semiconductor Inc. AD8813 www.ait-ic.com MOTOR DRIVER 2.1V~6.8V, LOW-VOLTAGE DC MOTOR DRIVER REV1.0 - NOV 2023 RELEASED - - 3 - ABSOLUTE MAXIMUM RATINGS VDD, Supply Voltage -0.3 ~ +7.0V IN1, IN2, Input Voltage -0.3 ~ +7.0V VDD, IN1, IN2, OUT1, OUT2, ESD Protection (Mannequin) 2KV TJ, Operating Temperature -40℃ ~ +150℃ Tstg, Storage Temperature -65℃ ~ +150℃ θJA, Thermal Resistance 260°C/W Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other condi tions beyond those specified is not implied. RECOMMENDED WORKING RANGE Parameter Symbol Min Typ. Max Unit Supply Voltage VDC 2.1 - 6.8 V Input Voltage IN1, IN2 2.1 - 6.8 Output Current IOUT1, IOUT2 0 - 1 A
ELECTRICAL CHARACTERISTICS
V CC=5.0V, Ta=25℃, RLOAD=20, Unless otherwise specified Parameter Symbol Conditions Min Typ. Max Unit MOTOR DRIVER OUTPUT On-Resistance RDSON IOUT=400mA - 0.7 1.0 Ω CONTROL INPUTS (IN1/IN2) High Input Voltage VINH 20 - VDD V Low Level Input Voltage VINL 0 - 0.7 V High Input Current IINH - 2.5 5.0 uA Low Input Current IINL - 0 1 uA Pull-Down Resistors RPD - 1.3 2.0 KΩ OPERATING CURRENT Circuit Shutdown Current IDD_OFF IN1=IN2=0 - 0 1 uA Circuit Operating Current IDD_ON - 65 100 THERMAL PROTECTION Thermal Shutdown Protection TOTSD - 150 - °C Thermal Shutdown hysteresis THYS - 30 - °C
AiT Semiconductor Inc. AD8813 www.ait-ic.com MOTOR DRIVER 2.1V~6.8V, LOW-VOLTAGE DC MOTOR DRIVER REV1.0 - NOV 2023 RELEASED - - 4 - BLOCK DIAGRAM INPUT-OUTPUT LOGICAL TABLE IN1 IN2 OUT1 OUT2 Working Status Operating Current L L Hi-Z Hi-Z Stop ICC_OFF H L H L Forward ICC_ON L H L H Reverse ICC_ON H H L L Brake ICC_ON INPUT-OUTPUT WAVEFORM
AiT Semiconductor Inc. AD8813 www.ait-ic.com MOTOR DRIVER 2.1V~6.8V, LOW-VOLTAGE DC MOTOR DRIVER REV1.0 - NOV 2023 RELEASED - - 5 - TIMING CHARACTERISTICS Unit: us Parameter Symbol Max Output Enable Time t1 0.9 Output Disable Time t2 0.3 Delay Time, IN x High to OUT x High t3 0.6 Delay Time, IN x Low to OUT x Low t4 1.2 Output Rise Time t5 0.2 Output Fall Time t6 0.2 Operating Mode H-Bridge basic operating mode： A) Stop mode Definition：When IN1=IN1= L, then OUT1=OUT2=Hi-Z B) Forward mode Definition：When IN1=H, IN2=L, then OUT1=H, OUT2=L C) Reverse mode Definition：When IN1=L, IN2=H, then OUT2=H, OUT1=L D) Brake mode Definition：When IN1=IN2= H，then OUT1=OUT2=L e) PWM mode A When the input signal IN1 is a PWM signal, IN2=0 or IN1=0, and IN2 is a PWM signal, the rotational speed of the motor will be affected by PWM signal duty cycle control. In this mode, the mot or drive circuit switches between On-and-Stop mode, where all power transistors are turned off and the energy stored inside the motor can only be slowly released through the power MOSFET's body diode. Note: Due to the presence of a high impedance state in the operating state, the rotational speed of the motor cannot be precisely controlled by the duty cycle of the PWM signal. If the frequency of the PWM signal is too high, the motor will not start.
AiT Semiconductor Inc. AD8813 www.ait-ic.com MOTOR DRIVER 2.1V~6.8V, LOW-VOLTAGE DC MOTOR DRIVER REV1.0 - NOV 2023 RELEASED - - 6 - f) PWM mode B When the input IN1 is a PWM signal, IN2=1 or IN1=1, and IN2 is a PWM signal, the motor's rotational speed is affected by PWM signal duty cycle control. In this mode, the motor drive ci rcuit outputs between the Conduction and Brake modes, where the energy the motor stores is quickly released through the NMOS on the lower side. Note: Due to the braking state in the working state, the motor energy can be released quickly, and the speed of the motor can be accurately controlled by the duty cycle of the PWM signal, but it must be noted that if the PWM signal frequency is too low, the motor will not be able to rotate smoothly continuously due to entering the Brake mode. To reduce motor noise, it is recommended the PWM signal frequency is greater than 10KHz and less than 50KHz. Protection Mechanisms 1) Over-current protection (OCP) While the IC conducts a large current, 4.5A (Typ.), the internal over-current protection function will be triggered. The device enters protection mode of auto-recover to avoid damaging IC and system. 2) Over-temperature protection If the IC junction temperature exceeds 180 °C (Typ.), the internal over-temperature protection function will be triggered, partial FETs in the H -bridge are disabled, that will ensure the safety of customers' products. If the IC junction temperature falls to 120 °C(Typ.), the IC resumes automatically.
AiT Semiconductor Inc. AD8813 www.ait-ic.com MOTOR DRIVER 2.1V~6.8V, LOW-VOLTAGE DC MOTOR DRIVER REV1.0 - NOV 2023 RELEASED - - 7 -
PACKAGE INFORMATION
Dimension in SOT-26 (Unit: mm)
AiT Semiconductor Inc. AD8813 www.ait-ic.com MOTOR DRIVER 2.1V~6.8V, LOW-VOLTAGE DC MOTOR DRIVER REV1.0 - NOV 2023 RELEASED - - 8 - IMPORTANT NOTICE AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. AiT Semiconductor Inc. 's integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT products in such applications is understood to be fully at the risk of the customer. As used herein may involve potential risks of death, personal injury, or servere property, or environmental damage. In order to minimize risks associated with the customer's applications, the customer should provide adequate design and operating safeguards. AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT warrants the performance of its products of the specifications applicable at the time of sale.