MAX5056 Maxim Integrated Products, MAX5056 Datasheet

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MAX5056

Manufacturer Part Number
MAX5056
Description
Manufacturer
Maxim Integrated Products
Datasheet

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The MAX5054–MAX5057 dual, 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 and
between channels. High sourcing/sinking peak cur-
rents, low propagation delay, and thermally enhanced
packages make the MAX5054–MAX5057 ideal for high-
frequency and high-power circuits.
The MAX5054–MAX5057 operate from a 4V to 15V single
power supply and consume 40µA (typ) of supply current
when not switching. These devices have internal logic
circuitry that prevents shoot-through during output state
changes to minimize the operating current at high
switching frequency. The logic inputs are protected
against voltage spikes up to +18V, regardless of the V
voltage. The MAX5054A is the only version that has
CMOS input logic levels while the MAX5054B/MAX5055/
MAX5056/MAX5057 have TTL input logic levels.
The MAX5055–MAX5057 provide the combination of dual
inverting, dual noninverting, and inverting/noninverting
input drivers. The MAX5054 feature both inverting and
noninverting inputs per driver for greater flexibility. They
are available in 8-pin TDFN (3mm x 3mm), standard SO,
and thermally enhanced SO packages. These devices
operate over the automotive temperature range of -40°C
to +125°C.
Power MOSFET Switching
Switch-Mode Power Supplies
DC-DC Converters
19-3348; Rev 0; 8/04
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.
PWM IN
V
IN
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
INA+
INA-
INB+
INB-
General Description
MAX5054
OUTA
OUTB
GND
V
DD
Motor Control
Power-Supply Modules
Applications
4A, 20ns, Dual MOSFET Drivers
V
OUT
DD
o 4V to 15V Single Power Supply
o 4A Peak Source/Sink Drive Current
o 20ns (typ) Propagation Delay
o Matching Delay Between Inverting and
o Matching Propagation Delay Between Two
o V
o TTL Logic Inputs
o 0.1 x V
o Up to +18V Logic Inputs (Regardless of V
o Low Input Capacitance: 2.5pF (typ)
o 40µA (typ) Quiescent Current
o -40°C to +125°C Operating Temperature Range
o 8-Pin TDFN and SO Packages
* EP = Exposed pad. Package code S8E-14.
Selector Guide and Pin Configurations appear at end of
data sheet.
MAX5055AASA
MAX5056AASA
MAX5057AASA
MAX5054AATA
MAX5054BATA
MAX5055BASA
MAX5056BASA
MAX5057BASA
Noninverting Inputs
Channels
(MAX5054B/MAX5055/MAX5056/MAX5057)
Hysteresis
Voltage)
DD
PART
/ 2 CMOS Logic Inputs (MAX5054AATA)
DD
(CMOS) and 0.3V (TTL) Logic-Input
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
Ordering Information
PIN-
PACKAGE
8 TDFN-EP*
8 TDFN-EP*
8 SO-EP*
8 SO
8 SO-EP*
8 SO
8 SO-EP*
8 SO
Features
DD
MARK
TOP
AGS
AGR
1

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MAX5056 Summary of contents

Page 1

... V voltage. The MAX5054A is the only version that has CMOS input logic levels while the MAX5054B/MAX5055/ MAX5056/MAX5057 have TTL input logic levels. The MAX5055–MAX5057 provide the combination of dual inverting, dual noninverting, and inverting/noninverting input drivers. The MAX5054 feature both inverting and noninverting inputs per driver for greater flexibility ...

Page 2

Dual MOSFET Drivers ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND.) V ...............................................................................-0.3V to +18V DD INA+, INA-, INB+, INB- ...............................................-0.3V to +18V OUTA, OUTB...................................................-0. OUTA, OUTB Short-Circuit Duration ........................................10ms Continuous Source/Sink Current at OUT_ (P Continuous ...

Page 3

... Turn-Off Delay Time _______________________________________________________________________________________ 4A, 20ns, Dual MOSFET Drivers SYMBOL CONDITIONS 100mA OUT_ V MAX5054A V IH MAX5054B/MAX5055/MAX5056/MAX5057 (Note 4) MAX5054A V IL MAX5054B/MAX5055/MAX5056/MAX5057 MAX5054A V HYS MAX5054B/MAX5055/MAX5056/MAX5057 INA+, INB+, INA-, INB 15V (Figure 1000pF 5000pF 10,000pF 1000pF 5000pF ...

Page 4

Dual MOSFET Drivers ELECTRICAL CHARACTERISTICS (continued 15V -40°C to +125°C, unless otherwise noted. Typical values are PARAMETER SYMBOL MATCHING CHARACTERISTICS Mismatch Propagation Delays from Inverting and Noninverting Inputs ...

Page 5

A I SUPPLY CURRENT DD-SW vs. TEMPERATURE 4 15V 250kHz 3.5 DUTY CYCLE = 50% BOTH CHANNELS SWITCHING 3.0 2.5 2.0 1.5 1.0 -50 -25 ...

Page 6

Dual MOSFET Drivers (T = +25°C, unless otherwise noted.) A DELAY MISMATCH BETWEEN 2 CHANNELS vs. TEMPERATURE 4.5V 10,000pF OUTPUT FALLING -50 -25 ...

Page 7

A LOGIC-INPUT VOLTAGE vs. OUTPUT VOLTAGE (V = 15V LOGIC-INPUT VOLTAGE vs. OUTPUT VOLTAGE (V = 15V vs. OUTPUT VOLTAGE DD _______________________________________________________________________________________ 4A, 20ns, Dual MOSFET Drivers Typical Operating ...

Page 8

... Noninverting Logic-Input Terminal for Driver B. Connect INA+ Noninverting Logic-Input Terminal for Driver A. Connect to V Exposed Pad. Internally connected to GND. Do not use the exposed pad as the only electrical — EP ground connection. MAX5055/MAX5056/MAX5057 PIN NAME MAX5055 MAX5056 MAX5057 — — ...

Page 9

... D-ON2 IN_- OUT_ N GND Figure 3. MAX5055/MAX5056/MAX5057 Functional Diagrams (1 Driver) The MAX5054B–MAX5057 have TTL-compatible logic inputs, while the MAX5054A is a CMOS logic-input dri- ver. The logic-input signals can be independent of the V voltage. For example, the device can be powered supply while the logic inputs are provided from CMOS logic ...

Page 10

... Table 1. MAX5054 Truth Table INA+/INB+ INA-/INB- Low Low Low High High Low High High Table 2. MAX5055/MAX5056/MAX5057 Truth Table NONINVERTING IN_+ Low High INVERTING IN_- Low High The logic inputs are high impedance and must not be left floating. If the inputs are left open, OUT_ can ...

Page 11

Supply Bypassing and Grounding Pay extra attention to bypassing and grounding the MAX5054–MAX5057. Peak supply and output currents may exceed 8A when both drivers drive large external capacitive loads in phase. Supply voltage drops and ground shifts create forms of ...

Page 12

Dual MOSFET Drivers Both the SO-EP and TDFN-EP packages have an exposed pad on the bottom of their package. These pads are internally connected to GND. For the best thermal conductivity, solder the exposed pad to the V ...

Page 13

Figure 6. Schematic of a 48V Input, 3.3V at 15A Output Synchronously Rectified, Isolated Power Supply ______________________________________________________________________________________ 4A, 20ns, Dual MOSFET Drivers 13 ...

Page 14

... TTL Inverting and MAX5057BASA 8 SO Noninverting Inputs * EP = Exposed pad. 14 ______________________________________________________________________________________ MAX5054 8 INA+ N. INB+ INA OUTA GND INB TDFN-EP MAX5056 8 N.C. N. OUTA INA GND OUTB INB+ 4 SO/SO-EP TRANSISTOR COUNT: 258 LOGIC INPUT PROCESS: CMOS Pin Configurations MAX5055 8 N.C. ...

Page 15

For the latest package outline information go to www.maxim-ic.com/packages TOP VIEW FRONT VIEW ______________________________________________________________________________________ 4A, 20ns, Dual MOSFET Drivers ...

Page 16

Dual MOSFET Drivers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 16 ______________________________________________________________________________________ Package Information (continued) PACKAGE OUTLINE 8L SOIC, .150" EXPOSED PAD ...

Page 17

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2004 Maxim Integrated Products ...

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