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Part: MAX5078BATT
Category:
Power Management
-> Power Distribution/Switches
-> MOSFET Drivers
Description: 4A, 20ns, MOSFET Driver <<<>>>The MAX5078A/MAX5078B High-speed MOSFET Drivers Source And Sink up to 4A Peak Current. These Devices Feature a Fast 20ns Propagation Delay And 20ns Rise And Fall Times While Driving a 5000pF Capacitive Load. Propagation Delay Time is Minimized And Matched Between The Inverting And Noninverting Inputs. High Sourcing/sinking Peak Currents, Low Propagation Delay, And Thermally Enhanced Packages Make The MAX5078A/ MAX5078B Ideal For High-frequency And High-power Circuits. <<<>>>The MAX5078A/MAX5078B Operate From a 4V to 15V Single Power Supply And Consume 40µA (typ) of Supply Current When Not Switching. These Devices Have an Internal Logic Circuitry That Prevents Shoot-through During Output State Changes to Minimize The Operating Current at a High Switching Frequency. The Logic Inputs Are Protected Against Voltage Spikes up to +18V, Regardless of The VDD Voltage. The MAX5078A Has CMOS Input Logic Levels While The MAX5078B Has Ttl-compatible Input Logic Levels. <<<>>><<<>>>The MAX5078A/MAX5078B Feature Both Inverting And Noninverting Inputs For Greater Flexibility in Controlling The MOSFET. They Are Available in a 6-pin TDFN (3mm X 3mm) Package And Operate Over The Automotive Temperature Range of -40 C to +125 C.
Company: Maxim Integrated Products
Datasheet: Download MAX5078BATT datasheet File size : 241 kB
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Datasheet text preview:
19-3346; Rev 0; 7/04
4A, 20ns, MOSFET Driver
General Description
The MAX5078A/MAX5078B high-speed MOSFET drivers source and sink up to 4A peak current. These devices feature a fast 20ns propagation delay and 20ns rise and f a l l times while driving a 5000pF capacitive load. P r o p a g a t i o n delay time is minimized and matched between the inverting and noninverting inputs. High sourcing/sinking peak currents, low propagation delay, and thermally enhanced packages make the MAX5078A/ MAX5078B ideal for high-frequency and high-power circuits. The MAX5078A/MAX5078B operate from a 4V to 15V single power supply and consume 40µA (typ) of supply current when not switching. These devices have an internal logic circuitry that prevents shoot-through during output state changes to minimize the operating current at a high switching frequency. The logic inputs are protected against voltage spikes up to +18V, regardless of the VDD voltage. The MAX5078A has CMOS input logic levels while the MAX5078B has TTL-compatible input logic levels. The MAX5078A/MAX5078B feature both inverting and noninverting inputs for greater flexibility in controlling the MOSFET. They are available in a 6-pin TDFN (3mm x 3mm) package and operate over the automotive temperature range of -40°C to +125°C. 4V to 15V Single Power Supply 4A Peak Source/Sink Drive Current 20ns (typ) Propagation Delay Matching Delay Between Inverting and Noninverting Inputs VDD / 2 CMOS (MAX5078A)/TTL (MAX5078B) Logic Inputs 0.1 x VDD (CMOS) and 0.3V (TTL) Logic-Input Hysteresis Up to +18V Logic Inputs (Regardless of VDD Voltage) Low Input Capacitance: 2.5pF (typ) 40µA (typ) Quiescent Current -40°C to +125°C Operating Temperature Range 6-Pin TDFN Package
Features
MAX5078
Ordering Information
PART MAX5078AATT MAX5078BATT TEMP RANGE -40°C to +125°C -40°C to +125°C PINPACKAGE 6 TDFN-EP* 6 TDFN-EP* TOP MARK AHL AHM
Applications
Power MOSFET Switching Switch-Mode Power Supplies DC-DC Converters Motor Control Power-Supply Modules
*EP = Exposed pad.
Selector Guide
PART MAX5078AATT MAX5078BATT PIN-PACKAGE 6 TDFN-EP 6 TDFN-EP LOGIC INPUT VDD / 2 CMOS TTL
Typical Operating Circuit
4V TO 15V VDD
Pin Configuration
TOP VIEW MAX5078
MAX5078A MAX5078B
IN+ OUT N
IN-
1
6
IN+
GND
2
5
OUT
GND 3 PWM IN INGND
4
VDD
TDFN-EP ________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
4A, 20ns, MOSFET Driver MAX5078
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND.) VDD.......-0.3V to +18V IN+, IN- ......-0.3V to +18V OUT ........-0.3V to (VDD + 0.3V) OUT Short-Circuit Duration.......10ms Continuous Source/Sink Current at OUT_ (PD < PDMAX) .....200mA Continuous Power Dissipation (TA = +70°C) 6-Pin TDFN-EP (derate 24.4mW/°C above +70°C)........1951mW Junction-to-Case Thermal Resistance (JC) ..2°C/W Operating Temperature Range......-40°C to +125°C Storage Temperature Range .........-65°C to +150°C Junction Temperature ..+150°C Lead Temperature (soldering, 10s).....+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = 4V to 15V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDD = 15V and TA = +25°C.) (Note 1)
PARAMETER POWER SUPPLY VDD Operating Range VDD Undervoltage Lockout VDD Undervoltage Lockout Hysteresis VDD Undervoltage Lockout to Output Delay VDD Supply Current DRIVER OUTPUT (SINK) Driver Output Resistance Pulling Down Peak Output Current (Sinking) Output-Voltage Low Latchup Protection DRIVER OUTPUT (SOURCE) Driver Output Resistance Pulling Up Peak Output Current (Sourcing) VDD = 15V, IOUT = 100mA VDD = 4.5V, IOUT = 100mA TA = +25°C TA = +125°C TA = +25°C TA = +125°C 1.5 1.9 2.75 3.75 4 2.1 2.75 4 5.5 A ILUP VDD = 15V, IOUT = -100mA VDD = 4.5V, IOUT = -100mA TA = +25°C TA = +125°C TA = +25°C TA = +125°C VDD = 4.5V VDD = 15V 400 1.1 1.5 2.2 3.0 4 0.45 0.24 1.8 2.4 3.3 4.5 A V mA IDD IDD-SW VDD rising IN+ = 0V, IN- = VDD (not switching) VDD = 4V VDD = 15V 0.5 VDD UVLO VDD rising 4 3.00 3.5 200 12 28 40 1.2 55 75 2.2 15 3.85 V V mV µs µA mA SYMBOL CONDITIONS MIN TYP MAX UNITS
Switching at 250kHz, CL = 0
RON-N
IP K - N
VDD = 15V, CL = 10,000pF IOUT = -100mA
Reverse current IOUT (Note 2)
RON-P
IP K - P
VDD = 15V, CL = 10,000pF
2
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4A, 20ns, MOSFET Driver
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 4V to 15V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDD = 15V and TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS VDD = 4.5V Output-Voltage High IOUT = 100mA VDD = 15V LOGIC INPUT (Note 3) Logic 1 Input Voltage VIH MAX5078A MAX5078B (Note 4) Logic 0 Input Voltage VIL MAX5078A MAX5078B Logic-Input Hysteresis Logic-Input-Current Leakage Input Capacitance CIN CL = 1000pF OUT Rise Time tR CL = 5000pF CL = 10,000pF CL = 1000pF OUT Fall Time Turn-On Delay Time Turn-Off Delay Time tF tD-ON tD-OFF CL = 5000pF CL = 10,000pF CL = 10,000pF (Note 2) CL = 10,000pF (Note 2) CL = 1000pF OUT Rise Time tR CL = 5000pF CL = 10,000pF CL = 1000pF OUT Fall Time Turn-On Delay Time Turn-Off Delay Time tF tD-ON tD-OFF CL = 5000pF CL = 10,000pF CL = 10,000pF (Note 2) CL = 10,000pF (Note 2) 18 18 10 10 V HYS MAX5078A MAX5078B IN+ = IN- = 0V or VDD -1 0.1 x VDD 0.3 +0.1 2.5 4 18 32 4 15 26 20 20 7 37 85 7 30 75 35 35 70 70 ns ns ns ns 34 34 ns ns ns ns +1 µA pF 0.7 x VDD 2.1 0.3 x VDD 0.8 V V V MIN VDD 0.55 V VDD 0.275 TYP MAX UNITS
MAX5078
SWITCHING CHARACTERISTICS FOR VDD = 15V (Figure 1)
SWITCHING CHARACTERISTICS FOR VDD = 4.5V (Figure 1)
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