TMI8837

STI8837 Low Voltage H-Bridge Motor Drive FEATURES           GENERAL DESCRIPTION Support the input voltage range: motor power: 1.8 ~ 12 V, control power supply: 1.8 ~ 5.5 V LDMOSRdson (HS+LS) 280mΩ Ultra low power sleep mode Maximum 1.8 A current output capacity Built-in UVLO Protection Built-inOver Temperature Protection Built-in Short Circuit Protection Built-in Over Current Protection Built-in Charge Pump DFN8L 2*2 package STI8837 is a low voltage DC motor driver IC , Internal integration 280m (HS+LS) H bridge NMOS switch, which can support the 1.8~12V input voltage range, The maximum current capacity of up to 1.8A, support for ultra low power sleep mode; built-in UVLO, Thermal Shutdown, OCP protection circuit can be used in camera, toys and consumer products APPLICATIONS    Cameras Toys Consumer Products TYPICAL APPILCATION Figure 1. Basic Application Circuit TMI and SUNTO are the brands of TOLL microelectronic STI8837 V1.1 2016.11 www.toll-semi.com www.suntosemi.com 1 STI8837 ABSOLUTE MAXIMUM RATINGS Parameter Value Unit VM Voltage Range -0.3~12 V VCC,IN1,IN2,nSLEEP Voltages Range -0.3~6 V VSET/VOUT Voltage Range -0.3~Vin+0.3 V Storage Temperature Range -50~150 °C Junction Temperature -40~150 °C Package Thermal Resistance 10 °C/W PACKAGE/ORDER INFORMATION VM 1 OUT1 2 OUT2 3 GND 4 GND (EPAD) 8 2 VCC 7 EN 6 IN1 5 IN2 DFN8L 2*2 Top Mark: S8837YY XXX (S8837: Device Code,YY XXX: Inside Code) www.toll-semi.com 2 Part Number Package Top mark Quantity/ Reel STI8837 DFN8L 2*2 S8837YY XXX 3000 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic STI8837 V1.1 2016.11 STI8837 PIN FUNCTIONS Pin Name Function 1 VM 2 OUT1 Motor Driver output 1 3 OUT2 Motor Driver output 2 4 GND Ground pin 5 IN2 PWM input2 6 IN1 PWM input1 7 EN 8 VCC Power Supply for Driver Connect a 0.1u bypass ceramic capacitor to GND Chip Enable Input 1:Enable, 2:Sleep Mode Power Supply for Logic Input Connect a 0.1u bypass ceramic capacitor to GND ESD RATING Items Description Value Unit VESD Human Body Model for all pins ±2000 V JEDEC specification JS-001 RECOMMENDED OPERATING CONDITIONS Items Description Voltage Range VM 1.8 12 V TA Operating Temperature Range -40 85 °C TMI and SUNTO are the brands of TOLL microelectronic STI8837 V1.1 2016.11 Min www.toll-semi.com Max Unit www.suntosemi.com 3 STI8837 ELECTRICAL CHARACTERISTICS (Note 3) ( VIN=12V , TA = 25°C, unless otherwise noted.) Parameter Symbol VM Voltage Range VVM Conditions Min 1.8 VM=5V VCC=3V VM Supply Current IVM No PWM VM=5V VCC=3V 50kHz PWM VCC Voltage Surge VVCC No PWM IVCC VM=5V VCC=3V 50kHz PWM VM=5V VCC=3V Sleep Mode Input Logic Low Voltage VIL Input Logic High Voltage VIL Input logic Hysteresis VHYS Input Logic Low Current IIL Input Logic High Current IIH Input Pull Down Resistor RIN Output Switch On-Resistance Output Switch Leakage Current RON ILEAK Max Unit 12 V 67 uA 0.43 mA 1.8 VM=5V VCC=3V VCC Supply Current Typ 5.5 105 uA 0.28 mA 5 nA 0.25x 0.4x VCC VCC V 0.5x 0.6x VCC VCC 0.1x -5 Iload=800mA V V VCC VM=5V VCC=3V V 5 uA 50 uA 100 KΩ 285 mΩ -200 200 nA VCC UVLO Voltage VUVLO 1.7 V UVLO Hysteresis VUVLO_HY 100 mV Over Current Protection IOCP 2.2 A Over Current Retry Time TOCP_RT 1 mS Thermal Shutdown Threshold TSDN 160 ℃ www.toll-semi.com 4 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic STI8837 V1.1 2016.11 STI8837 Thermal Shutdown Hysteresis TSDN_HY 20 ℃ Output Enable time T1 180 nS Output Disable time T2 70 nS T3 140 nS T4 160 nS Output rise time T5 60 nS Output fall time T6 20 nS Delay Time IN1 low to OUT2 high IN2 low to OUT1 high Delay Time IN2 high to OUT1 low IN1 high to OUT2 low FUNCTIONAL BLOCK DIAGRAM Charge Pump VCC VM EN UVLO HSD GDRV OUT1 SCP LSD GDRV IN1 Logic SCP IN2 VM HSD GDRV Thermal Shutdown OUT2 LSD GDRV OSC GND Figure 2. STI8837 Block Diagram TMI and SUNTO are the brands of TOLL microelectronic STI8837 V1.1 2016.11 www.toll-semi.com www.suntosemi.com 5 STI8837 INPUT OUTPUT LOGIC T1 T4 T2 T3 EN IN1 IN2 OUT1 OUT2 Function 0 X X Z Z Coast 1 0 0 Z Z Coast 1 1 0 H L Forward 1 0 1 L H Reverse 1 1 1 L L Break www.toll-semi.com 6 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic STI8837 V1.1 2016.11 STI8837 PACKAGE INFORMATION DFN8L 2*2 Note: 1) All dimensions are in millimeters. 2) Package length does not include mold flash, protrusion or gate burr. 3) Package width does not include inter lead flash or protrusion. 4) Lead popularity (bottom of leads after forming) shall be 0.10 millimeters max. 5) Pin 1 is lower left pin when reading top mark from left to right. TMI and SUNTO are the brands of TOLL microelectronic STI8837 V1.1 2016.11 www.toll-semi.com www.suntosemi.com 7