UC2950T

UC2950 Half-Bridge Bipolar Switch FEATURES DESCRIPTION • Source or Sink 4.0A This device is a monolithic integrated circuit designed to provide high-current switching with low saturation voltages when activated by low-level logic signals. Source and sink switches may be independently activated without regard to timing as a built-in interlock will keep the sink off if the source is on. • Supply Voltage to 35V • High-Current Output Diodes • Tri-State Operation • TTL and CMOS Input Compatibility • Thermal Shutdown Protection • 300kHz Operation • Low-Cost TO-220 Package This driver has the high current capability to drive large capacitive loads with fast rise and fall times; but with high-speed internal flyback diodes, it is also ideal for inductive loads. Two UC2950s can be used together to form a full bridge, bipolar motor driver compatible with high frequency chopper current control. ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage Range, VC . . . . . . . . . . . . . . . . . . . . . 8V to 35V Output Voltage Range, VO . . . . . . . . . . . . . . . . –3.0V to VC+3V TRUTH TABLE Input Voltage Range, VIN . . . . . . . . . . . . . . . . . . –0.3V to +7.0V Peak Output Current (100 ms, 10% DC) . . . . . . . . . . . . . ± 4.0A Sink Drive Output Source Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . ± 2.0A Pin 5 Pin 4 Drive Pin 2 Power Dissipation with Heat Sink. . . . . . . . . . . . . . . . . . . . 15W Power Dissipation in Free Air . . . . . . . . . . . . . . . . . . . . . . . . 2W Low Low Low Operating Temperature Range, TA . . . . . . . . . –20°C to +100°C Off High Low Storage Temperature Range, TS . . . . . . . . . . –55°C to +125°C High Low High High High High Note 1: Consult Packaging section of databook for thermal Note: With no load, output voltage will be limitations and considerations of package. HIGH in the OFF state. CONNECTION DIAGRAM 5-PIN TO-220 (TOP VIEW) T Package SIMPLIFIED SCHEMATIC SLUS280A - MAY 1993 - REVISED JULY 2003 UC2950 ELECTRICAL CHARACTERISTICS: Unless otherwise stated, VC = 35V, TA = -20°C to +100°C, VIL = 0.8V, VIH = 2.4V for either input, TA =TJ. PARAMETERS Output Leakage to VC Output Leakage to Ground Output Sink Saturation Output Source Saturation Sink Diode Forward Voltage Source Diode Forward Voltage Input Current Supply Current TEST CONDITIONS Output Off Output Off VOL, IL = 2.0A (VC-VOL), IL = –2.0A ID = –2.0A ID = 2.0A Either Input, VI = 5V Either Input, VI = 0V Output High Output Low MIN TYP 20 –200 1.2 1.2 1.4 1.4 20 –1.0 20 10 MAX UNITS 500 µA –500 µA 2.0 V 2.0 V 2.0 V 2.0 V 100 µA –1.6 mA 36 mA 20 mA SWITCHING CHARACTERISTICS: See Test Circuit. VC = 12V, RL = 5Ω, TA = 25°C. Guaranteed by design, not 100% tested in production. PARAMETERS Source Turn-On Delay, tD1 Source Turn-Off Delay, tD2 Sink Turn-On Delay, tD3 Sink Turn-Off Delay, tD4 Cross-Conduction Current Spike When Source and Sink are Activated Together MIN SWITCHING TEST CIRCUIT 2 TYP 300 1.0 200 100 0.6 MAX UNITS 500 ns 2.0 µs 400 ns 300 ns 1.0 µs PACKAGE OPTION ADDENDUM www.ti.com 9-May-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) UC2950T ACTIVE TO-220 KC 5 50 RoHS & Green SN N / A for Pkg Type -20 to 100 UC2950T Samples UC2950TG3 ACTIVE TO-220 KC 5 50 RoHS & Green SN N / A for Pkg Type -20 to 100 UC2950T Samples (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of