TC4424A

TC4423A/TC4424A/TC4425A 3A Dual High-Speed Power MOSFET Drivers Features • High Peak Output Current: 4.5A (typical) • Wide Input Supply Voltage Operating Range: - 4.5V to 18V • High Capacitive Load Drive Capability: - 1800 pF in 12 ns • Short Delay Times: 40 ns (typical) • Matched Rise/Fall Times • Low Supply Current: - With Logic ‘1’ Input – 1.0 mA (maximum) - With Logic ‘0’ Input – 150 µA (maximum) • Low Output Impedance: 2.5Ω (typical) • Latch-Up Protected: Will Withstand 1.5A Reverse Current • Logic Input Will Withstand Negative Swing Up To 5V • Pin compatible with the TC4423/TC4424/TC4425 and TC4426A/TC4427A/TC4428A devices • Space-saving 8-Pin 150 mil body SOIC and 8-Pin 6x5 DFN Packages General Description The TC4423A/TC4424A/TC4425A devices are a family of dual-output 3A buffers/MOSFET drivers. These devices are improved versions of the earlier TC4423/ TC4424/TC4425 dual-output 3A driver family. This improved version features higher peak output current drive capability, lower shoot-throught current, matched rise/fall times and propagation delay times. The TC4423A/TC4424A/TC4425A devices are pincompatible with the existing TC4423/TC4424/TC4425 family. An 8-pin SOIC package option has been added to the family. The 8-pin DFN package option offers increased power dissipation capability for driving heavier capacitive or resistive loads. The TC4423A/TC4424A/TC4425A MOSFET drivers can easily charge and discharge 1800 pF gate capacitance in under 20 ns, provide low enough impedances in both the on and off states to ensure the MOSFET’s intended state will not be affected, even by large transients. The TC4423A/TC4424A/TC4425A inputs may be driven directly from either TTL or CMOS (2.4V to 18V). In addition, the 300 mV of built-in hysteresis provides noise immunity and allows the device to be driven from slow rising or falling waveforms. The TC4423A/TC4424A/TC4425A dual-output 3A MOSFET driver family is offerd with a -40oC to +125oC temperature rating, making it useful in any wide temperature range application. Applications • • • • Switch Mode Power Supplies Pulse Transformer Drive Line Drivers Direct Drive of Small DC Motors Package Types 8-Pin PDIP/SOIC TC4423A TC4424A TC4425A NC IN A GND IN B 1 8 2 TC4423A 7 3 TC4424A 6 4 TC4425A 5 16-Pin SOIC (Wide ) NC IN A NC GND GND NC IN B NC 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 TC4423A TC4424A TC4425A NC OUT A OUT A VDD VDD OUT B OUT B NC NC OUT A OUT A VDD VDD OUT B OUT B NC NC OUT A OUT A VDD VDD OUT B OUT B NC NC OUT A VDD OUT B NC OUT A VDD OUT B NC OUT A VDD OUT B TC4423A TC4424A TC4425A 8-Pin 6x5 NC 1 IN A 2 GND 3 DFN (1) 8 TC4423A TC4424A TC4425A NC OUT A VDD OUT B NC OUT A VDD OUT B NC OUT A VDD OUT B TC4423A TC4424A TC4425A 7 6 5 IN B 4 Note 1: Exposed pad of the DFN package is electrically isolated. 2: Duplicate pins must both be connected for proper operation. © 2007 Microchip Technology Inc. DS21998B-page 1 TC4423A/TC4424A/TC4425A Functional Block Diagram(1) Inverting 750 µA 300 mV Output VDD Input Effective Input C = 20 pF (Each Input) GND 4.7V Non-inverting TC4423A Dual Inverting TC4424A Dual Non-inverting TC4425A Inverting / Non-inverting Note 1: Unused inputs should be grounded. DS21998B-page 2 © 2007 Microchip Technology Inc. TC4423A/TC4424A/TC4425A 1.0 ELECTRICAL CHARACTERISTICS † Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended periods may affect device reliability. Absolute Maximum Ratings † Supply Voltage ................................................................+20V Input Voltage, IN A or IN B .......... (VDD + 0.3V) to (GND – 5V) Package Power Dissipation (TA=50°C) 8L PDIP .......................................................................1.2W 8L SOIC.................................................................... 0.61W 16L SOIC.....................................................................1.1W 8L DFN .................................................................... Note 3 DC CHARACTERISTICS (NOTE 2) Electrical Specifications: Unless otherwise indicated, TA = +25°C, with 4.5V ≤ VDD ≤ 18V. Parameters Input Logic ‘1’, High Input Voltage Logic ‘0’, Low Input Voltage Input Current Input Voltage Output High Output Voltage Low Output Voltage Output Resistance, High Output Resistance, Low Peak Output Current Latch-Up Protection Withstand Reverse Current Switching Time (Note 1) Rise Time Fall Time Delay Time Delay Time Power Supply Supply Voltage Power Supply Current Note 1: 2: 3: VDD IS IS 4.5 — — — 1.0 0.15 18 2.0 0.25 V mA mA VIN = 3V (Both inputs) VIN = 0V (Both inputs) tR tF tD1 tD2 — — — — 12 12 40 41 21 21 48 48 ns ns ns ns Figure 4-1, Figure 4-2, CL = 1800 pF Figure 4-1, Figure 4-2, CL = 1800 pF Figure 4-1, Figure 4-2, CL = 1800 pF Figure 4-1, Figure 4-2, CL = 1800 pF VOH VOL ROH ROL IPK IREV VDD – 0.025 — — — — — — — 2.2 2.8 4.5 >1.5 — 0.025 3.0 3.5 — — V V Ω Ω A A DC Test DC Test IOUT = 10 mA, VDD = 18V IOUT = 10 mA, VDD = 18V 10V≤ VDD ≤18V (Note 2) Duty cycle ≤ 2%, t ≤ 300 µsec. VIH VIL IIN VIN 2.4 — –1 -5 1.5 1.3 — — — 0.8 1 VDD+0.3 V V µA V 0V ≤ VIN ≤ VDD Sym Min Typ Max Units Conditions Switching times ensured by design. Tested during characterization, not production tested. Package power dissipation is dependent on the copper pad area on the PCB. © 2007 Microchip Technology Inc. DS21998B-page 3 TC4423A/TC4424A/TC4425A DC CHARACTERISTICS (OVER OPERATING TEMPERATURE RANGE) Electrical Specifications: Unless otherwise indicated, operating temperature range with 4.5V ≤ VDD ≤ 18V. Parameters Input Logic ‘1’, High Input Voltage Logic ‘0’, Low Input Voltage Input Current Output High Output Voltage Low Output Voltage Output Resistance, High Output Resistance, Low Switching Time (Note 1) Rise Time Fall Time Delay Time Delay Time Power Supply Power Supply Current IS — — 2.0 0.2 3.0 0.3 mA VIN = 3V (Both inputs) VIN = 0V (Both inputs) tR tF tD1 tD2 — — — — 20 22 50 50 31 31 66 66 ns ns ns ns Figure 4-1, Figure 4-2, CL = 1800 pF Figure 4-1, Figure 4-2, CL = 1800 pF Figure 4-1, Figure 4-2, CL = 1800 pF Figure 4-1, Figure 4-2, CL = 1800 pF VOH VOL ROH ROL VDD – 0.025 — — — — — 3.1 3.7 — 0.025 6 7 V V Ω Ω IOUT = 10 mA, VDD = 18V IOUT = 10 mA, VDD = 18V VIH VIL IIN 2.4 — –10 — — — — 0.8 +10 V V µA 0V ≤ VIN ≤ VDD Sym Min Typ Max Units Conditions Note 1: Switching times ensured by design. TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise noted, all parameters apply with 4.5V ≤ VDD ≤ 18V. Parameters Temperature Ranges Specified Temperature Range (V) Maximum Junction Temperature Storage Temperature Range Package Thermal Resistances Thermal Resistance, 8L-6x5 DFN Thermal Resistance, 8L-PDIP Thermal Resistance, 8L-SOIC Thermal Resistance, 16L-SOIC θJA θJA θJA θJA — — — — 33.2 84.6 163 90 — — — — °C/W °C/W °C/W °C/W Typical four-layer board with vias to ground plane TA TJ TA –40 — –65 — — — +125 +150 +150 °C °C °C Sym Min Typ Max Units Conditions DS21998B-page 4 © 2007 Microchip Technology Inc. TC4423A/TC4424A/TC4425A 2.0 Note: TYPICAL PERFORMANCE CURVES The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. Note: Unless otherwise indicated, TA = +25°C with 4.5V