SG1635/SG3635 2A, HALF-BRIDGE DRIVER DESCRIPTION FEATURES The SG1635 is a monolithic integrated circuit designed to interface low-level logic signals with high-current, inductive, or capacitive loads. This device is particularly adept at high-speed pulse width modulation for motor drives or Class D audio amplifiers, and when used in pairs, they can provide full bridge drive for bi-directional control. • • • • • • • With TTL-compatible units, this device will either source or sink up to 5A of peak current with interlock protection to insure that source and sink cannot be on simultaneously. Additional protection is provided by thermal shutdown of the source output if the chip temperature rises above 160°C. High speed internal commutating diodes are also included. Source or sink 5A peak Half-bridge with internal diodes TTL input compatibility Either dual- or tri-state output Direct PWM motor drive from microprocessor Built-in thermal protection SG3635P replaces UDN2935Z HIGH RELIABILITY FEATURES - SG1635 ♦ Available to MIL-STD-883 ♦ LMI level "S" processing available BLOCK DIAGRAM - SG1635/3635 TRUTH TABLE Enable 0 0 1 1 Pulse 0 1 0 1 Output High High Low Off - High Z 1 = Open or High LINFINITY 6/91 Rev 1.1 5/94 Copyright 1994 1 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞ FAX: (714) 893-2570 SG1635/SG3635 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage (VS) SG1635/SG3635 ............................................................. 40V Input Voltage Enable and Pulse .............................................................. 7V Source/Sink Output Current Contiuous ........................................................................... 3A Peak ................................................................................... 5A Operating Junction Temperature Hermetic (R - Package) ............................................... 150°C Plastic (P - Package) ................................................... 150°C Storage Temperature Range ............................ -65°C to 150°C Lead Temperature (Soldering, 10 Seconds) .................. 300°C Note 1. Values beyond which damage may occur. THERMAL DATA R Package: Thermal Resistance-Junction to Case, θ JC ................. 5.0°C/W Thermal Resistance-Junction to Ambient, θ JA .............. 40°C/W P Package: Thermal Resistance-Junction to Case, θ JT ................ 4.0°C/W* Thermal Resistance-Junction to Ambient, θ JA ............. 55°C/W * Note A. Junction Temperature Calculation: TJ = TA + (PD x θJA). Note B. The above numbers for θ JC are maximums for the limiting thermal resistance of the package in a standard mounting configuration. The θ JA numbers are meant to be guidelines for the thermal performance of the device/pcboard system. All of the above assume no ambient airflow. = θ JT (Junction to Tab) RECOMMENDED OPERATING CONDITIONS (Note 2) Supply Voltage (VS) SG1635/SG3635 .................................................... 8V to 35V Source/Sink Output Current Continuous ......................................................................... 2A Peak ................................................................................... 3A Operating Ambient Temperature Range SG1635 ........................................................... -55°C to 125°C SG3635 ................................................................ 0°C to 70°C Note 2. Range over which the device is functional. ELECTRICAL CHARACTERISTICS SG1635 and SG3635 (Unless otherwise specified, these specfiications apply over the operating ambient temperatures for SG1635 with -55°C ≤ TA ≤ 125°C, SG3635 with 0°C ≤ TA ≤ 70°C, and +VS = 24V. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter Static Characteristics Logic 1 Input Voltage Logic 0 Input Voltage Input High Current Input Low Current Output Leakage Source Saturation Voltage Sink Saturation Voltage Diode Forward Voltage Supply Current Test Conditions 2.0 VPULSE = VENABLE = 4.5V VPULSE = VENABLE = 0V VPULSE = VENABLE = 2.0V VOUT = 24V VOUT = 0V VPULSE = 2.0V, VENABLE = 0.8V, IOUT = -2A VPULSE = 0.8V, VENABLE = 2.0V, IOUT = 2A IDIODE = ±2A VS = 35V VPULSE = 2.0V, VENABLE = 0.8V VPULSE = 0.8V, VENABLE = 2.0V 2.0 2.0 2.0 LINFINITY 6/91 Rev 1.1 2/94 Copyright 1994 SG1635/SG3635 Min. Typ. Max. 2 Units 0.8 200 -3.2 V V µA mA 500 40 3.0 3.0 3.0 mA mA V V V 25 70 mA mA Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞ FAX: (714) 893-2570 SG1635/SG3635 ELECTRICAL CHARACTERISTICS (continued) Parameter Dynamic Characteristics (Notes 3 and 4) Pulse Propagation Delay Pulse Transition Time Enable Propagation Delay Enable Transition Time Definition Turn-On Delay (TPDHL) Turn-Off Delay (TPDLH) Turn-On (TPTHL) Turn-Off (TPTLH) Turn-On Delay (TEDLH) Turn-Off Delay (TEDHL) Turn-On (TETLH) Turn-Off (TETHL) SG1635/3635 Min. Typ. Max. Units 50 100 200 200 200 100 100 100 ns ns ns ns ns ns ns ns Note 3. TJ = 25°C. Note 4. Although these parameters are guaranteed, they are not tested in production. LINFINITY 6/91 Rev 1.1 2/94 Copyright 1994 3 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞ FAX: (714) 893-2570 SG1635/SG3635 AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS - FIGURE 1 APPLICATION INFORMATION TYPICAL MOTOR DRIVE APPLICATION Two SG1635's form a full bridge motor drive circuit with the appropriate Enable Input, determining motor direction, and a PWM signal into the Pulse Inputs, determining speed. Because of the internal Enable interlock, both Pulse Inputs may be connected together to a single-ended PWM signal. LINFINITY 6/91 Rev 1.1 2/94 Copyright 1994 4 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞ FAX: (714) 893-2570 SG1635/SG3635 CONNECTION DIAGRAMS/ORDERING INFORMATION (See Notes Below) Package 5-PIN TO-66 METAL CAN R - PACKAGE Part No. SG1635R/883B SG1635R SG3635R Ambient Temperature Range Connection Diagram -55°C to 125°C -55°C to 125°C 0°C to 70°C OUTPUT +VS ENABLE 3 4 2 5 1 GND PULSE CASE IS GROUND Note: Case and tab are internally connected to substrate ground. 5-PIN TO-220 PLASTIC P - PACKAGE SG3635P 0°C to 70°C GND 5 4 3 2 1 PULSE OUTPUT GND ENABLE V+ Case + Tab are internally connected Notes: 1. Contact factory for JAN and DESC part availability. 2. All parts are viewed from the top. LINFINITY 6/91 Rev 1.1 2/94 Copyright 1994 5 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞ FAX: (714) 893-2570