LB8503V DC Fan Motor Speed Control IC Overview The LB8503V is an improved functionality version of the LB8500 www.onsemi.com and LB8502 products that features the added functions listed below. The LB8503V supports both single-phase and three-phase applications. Added Functions Supports Origin Shifting in the Speed Control Function Adds a Dedicated Pin for Setting the Soft Start Time: This allows a longer start time to be set without reducing the response time when changing speed. SSOP16 CASE 565AM FG Output Pin Added Functions and Features MARKING DIAGRAM Achieves Linear Speed Control: Applications can set the slope of the change in motor speed with change in the input duty. Minimized Speed Fluctuations in the Presence of Line or Load LB8503 Variations YMWL Allows a Minimum Speed to be Set Soft Start Function Settings Using External Capacitors and Resistors (to Support Easier Mass Production of End Products) LB8503 = Specific Device Code Supports both PWM Duty and Analog Voltage Control Inputs Y = Year of Production M = Assembly Operation Month WL = Wafer Lot Number ORDERING INFORMATION Device Package Shipping LB8503VTLME SSOP16 2,000 / (Pb-Free) Tape & Reel LB8503VWAH SSOP16 2,000 / (Pb-Free/ Tape & Reel Halogen Free) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: April, 2019 Rev. 3 LB8503V/DLB8503V SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS (T = 25C) A Parameter Symbol Conditions Ratings Unit Supply Voltage V max V pin 18 V CC CC Output Current I max E0 pin 3 mA O FG Output Pin Output Voltage V max FG pin 18 V FG OUT FG Output Pin Output Current I max FG pin 10 mA FG OUT Allowable Power Dissipation P max When mounted on a circuit board 0.8 W d (Note 1) Operating Temperature T 30 to +95 C opr Storage Temperature T 55 to +150 C stg Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 3 1. Specified circuit board: 114.3 76.1 1.6mm , glass epoxy. RECOMMENDED OPERATING RANGE (T = 25C) A Parameter Symbol Conditions Ratings Unit Supply Voltage Range 1 V 1 V pin 7.5 to 17 V CC CC Supply Voltage Range 2 V 2 V pin, with V shorted to 6 VREG 5.5 to 6.5 V CC CC CC Output Current I E0 pin 2.5 mA O 6 V Constant Voltage Output Current I 5 mA REG CTL Pin Voltage V 0 to 6 VREG V CTL LIM Pin Voltage V 0 to 6 VREG V LIM VC1 Pin Voltage V 0 to 6 VREG V CI Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. ELECTRICAL CHARACTERISTICS (T = 25C, V = 12 V) A CC Parameter Symbol Conditions Min Typ Max Unit Supply Current I 5.5 6.5 mA CC 6 V CONSTANT VOLTAGE OUTPUT (VREG PIN) Output Voltage VREG LB8503TLME 5.8 6.0 6.2 V LB8503WAH 5.9 6.0 6.1 Line Regulation VREG1 V = 8 to 17 V 40 100 mV CC Load Regulation VREG2 I = 5 to 5 mA 10 100 mV O Temperature Coefficient Design target (Note 2) 0 mV/C VREG3 INTEGRATING AMPLIFIER BLOCK (E01) Common-mode Input Voltage Range VICM 2.0 VREG V High-level Output Voltage V (E01) IEO1 = 0.2 mA VREG 1.2 VREG 0.8 V OH Low-level Output Voltage V (E01) IEO1 = 0.2 mA 0.8 1.0 V OL INTEGRATING AMPLIFIER BLOCK (E03) High-level Output Voltage V (E03) IEO1 = 0.2 mA VREG 1.2 VREG 0.8 V OH Low-level Output Voltage V (E03) IEO1 = 0.2 mA 0.8 1.0 V OL www.onsemi.com 2