COS4428SR

COS4426/4427/4428 1.5A Dual High-Speed Power MOSFET Drivers Features General Description ■ High Peak Output Current: 1.5A The COS4426/7/8 are matched dual power ■ Wide Supply Voltage Operating Range: MOSFET 4.5V to 25V enables high speed operation capable of High Capacitive Load Drive Capability delivering peak currents of 1.5A into 1000pF 1000pF in 11ns (typical) capacitive loads. Improved speed and drive ■ Short Delay Times: 35ns (typical) capability are enhanced by matched rise and ■ Matched Rise/Fall Times fall ■ Low Output Impedance maintain ■ Low Supply Current pulse-widths to reduce timing errors and clock ■ Over-temperature Protection skew problems. Dynamic switching losses are ■ Under-voltage Lockout minimized with non-overlapped drive techni- ■ Non-overlapped Drive Tech ques. These devices are highly latch-up ■ ESD Protected: 2.0kV resistant within their power and voltage ratings. ■ Input withstands negative inputs up to 5V They are not subject to damage when up to 5V ■ Available in Green SOP8, DIP8 and DFN8 of noise spiking (of either polarity) occurs on Packages the ground pin. All terminals are fully protected ■ delay drivers. times. the Unique These integrity circuit matched of design delays input-to-output against Electrostatic Discharge (ESD) up to 2.0 Applications kV. ■ Wireless Power Transmitter ■ Switch Mode Power Supplies Pin Configuration ■ Power MOSFET Drivers ■ Pulse Transformer Drivers ■ Line Drivers ■ CCD Driver ■ Class D Switching Amplifiers Rev1.2 Copyright@2022 Cosine Nanoelectronics Inc. All rights reserved The information provided here is believed to be accurate and reliable. Cosine Nanoelectronics assumes no reliability for inaccuracies and omissions. Specifications described and contained here are subjected to change without notice on the purpose of improving the design and performance. All of this information described herein should not be implied or granted for any third party. www.cosine-ic.com COS4426: COS4427: COS4428: Outputs out of phase with inputs Outputs in phase with inputs OutputA: out of phase with input A OutputB in phase with input B 1 COS4426/4427/4428 1. Pin Configuration and Functions COS4426: Outputs out of phase with inputs COS4427: Outputs in phase with inputs COS4428: Output A: out of phase with input A; Output B: in phase with input B Figure 1. Pin Diagram Figure 2. Functional Block Diagram www.cosine-ic.com 2 COS4426/4427/4428 Pin Description Pin 1 2 3 4 5 6 7 8 Name NC IN A GND In B OUT B VDD OUT A NC - PAD Description No connection Input A Ground Input B Output of Channel B Power Supply Output of Channel A No connection Exposed Metal Pad of DFN Package Function Table COS4426 INA INB L L H L H H H COS4427 COS4428 OUTA OUTB OUTB H L L H L H L L H H H L L H H L L L H L L H H L H 1.1 Inputs A and B MOSFET driver inputs A and B are high-impedance, TTL/CMOS compatible inputs. These inputs also have 300 mV of hysteresis between the high and low thresholds that prevents output glitching even when the rise and fall time of the input signal is very slow. 1.2 Ground (GND) Ground is the device return pin. The Ground pin(s) should have a low-impedance connection to the bias supply source return. High peak current flows out the Ground pin(s) when the capacitive load is being discharged. 1.3 Output A and B MOSFET driver outputs A and B are low-impedance, CMOS push-pull style outputs. The pull-down and pullup devices are of equal strength, making the rise and fall times equivalent. www.cosine-ic.com 3 COS4426/4427/4428 1.4 Supply Input (VDD) The VDD input is the bias supply for the MOSFET driver and is rated for 4.5V to 25V with respect to the Ground pin. The VDD input should be bypassed with local ceramic capacitors. The value of these capacitors should be chosen based on the capacitive load that is being driven. A value of 1.0 μF is suggested. 1.5 Exposed Metal Pad The exposed metal pad of the DFN-8 package is not internally connected to any potential. Therefore, this pad can be connected to a ground plane or other copper plane on a Printed Circuit Board (PCB), to aid in heat removal from the package. 2. Product Specification 2.1 Absolute Maximum Ratings (1) Parameter DC supply voltage Vs Operating junction temperature Storage temperature Maximum input voltage Combined peak output current Min Max Unit -40 -55 GND-5 26 125 150 VDD+0.3 4 V °C °C V A (1) Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. 2.2 Thermal Data Parameter Rating Unit Package Thermal Resistance 155 (SOP8) 90 (DIP8) 57 (FDN8,3x3) °C/W Rating Unit 2.3 Recommended Operating Conditions Parameter DC Supply Voltage Operating ambient temperature www.cosine-ic.com 4.5V ~ 25V -40 to +85 V °C 4 COS4426/4427/4428 2.4 Electrical Characteristics (Typical values are tested at TA=25 oC, VDD=18V) Parameter Symbol Conditions Min. Typ. Max. Unit INPUT Input Signal High Threshold VIH Input Signal Low Threshold VIL Input Signal Hysteresis Input Current 1.8 0.7 VHYS IIN V 0.3 0VVINVDD V V ±1 µA OUTPUT Pull-Up Resistance ROH Source Current = 10mA 2.0 Ω Pull-Down Resistance ROL Sink Current = -10mA 2.0 Ω Peak Output Current IPK Source Current, f=1kHz, CL=1000pF Sink Current, f=1kHz, CL=1000pF Continuous Output Current IDC Source / Sink Current 1.5 A -1.5 ±200 mA POWER SUPPLY Power Supply Current ICC Operating Voltage Range VDD VINA=VINB=3V 0.8 VINA=VINB=0V 0.4 4.5 Under-Voltage Lockout ON Threshold Under-Voltage Lockout Hysteresis 3.6 mA 25 V 4 V 0.5 V 11 ns 11 ns Non-inverting Input 34 ns Inverting Input 44 ns Non-inverting Input 34 ns Inverting Input 44 ns SWITCHING CHARACTERISTICS Rise Time tR Fall Time tF Turn-On Delay Time tD1 Turn-Off Delay Time tD2 www.cosine-ic.com CL =1000pF, See Figure 3.1 CL =1000pF, See Figure 3.1 5 COS4426/4427/4428 OVER-TEMPERATURE PROTECTION Thermal Shutdown Threshold 150 °C Thermal Shutdown Threshold Hysteresis 25 °C 3.0 Application Information Figure 3.1 Switching Time Test Circuit 4.0 Package and Ordering Information Model COS4426 COS4427 COS4428 www.cosine-ic.com Order Number Package Package Option Marking Information COS4426SR SOP-8 Tape and Reel, 4000 COS4426SR COS4426DR DIP-8 Tube 50 COS4426DR COS4427SR SOP-8 Tape and Reel, 4000 COS4427SR COS4427DR DIP-8 Tube 50 COS4427DR COS4428SR SOP-8 Tape and Reel, 4000 COS4428SR COS4428DR DIP-8 Tube 50 COS4428DR 6 COS4426/4427/4428 5.0 Package Information 5.1 SOP8 (Package Outline Dimensions) 5.2 DIP8 (Package Outline Dimensions) www.cosine-ic.com 7