MAX8552ETB+T Maxim Integrated Products, MAX8552ETB+T Datasheet

IC DRIVER MOSFET HS 10-TDFN

MAX8552ETB+T

Manufacturer Part Number
MAX8552ETB+T
Description
IC DRIVER MOSFET HS 10-TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX8552ETB+T

Configuration
High and Low Side, Synchronous
Input Type
PWM
Delay Time
12ns
Current - Peak
30A
Number Of Configurations
1
Number Of Outputs
2
Voltage - Supply
4.5 V ~ 6.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-TDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
High Side Voltage - Max (bootstrap)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
MAX8552ETB+T
MAX8552ETB+TTR
The MAX8552 highly integrated monolithic MOSFET dri-
ver is capable of driving a pair of power MOSFETs in
single or multiphase synchronous buck-converter appli-
cations that provide up to 30A output current per
phase. The MAX8552 simplifies PC board layout in mul-
tiphase systems, particularly three phases and higher.
High input voltages up to 24V allow the MAX8552 to be
used in desktop, notebook, and server applications.
Each MOSFET driver is capable of driving 3000pF
capacitive loads with only 12ns propagation delay and
11ns (typ) rise and fall times, making the MAX8552
ideal for high-frequency applications.
User-programmable break-before-make circuitry pre-
vents shoot-through currents, maximizing converter effi-
ciency. An enable input allows total driver shutdown
(<1µA typ) for power-sensitive portable applications.
The PWM control input is compatible with TTL and
CMOS logic levels. The MAX8552, along with the
MAX8524 or the MAX8525 multiphase controllers, pro-
vides flexible 2-, 3-, 4-, 6-, or 8-phase CPU core-voltage
supplies.
The MAX8552 is available in space-saving 10-pin TDFN
and µMAX packages and is specified for -40°C to
+85°C operation.
19-2997; Rev 0; 10/03
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.
Multiphase Buck Converters
Voltage Regulator Modules (VRMs)
Processor-Core Voltage Regulators
Desktops, Notebooks, and Servers
Switching Power Supplies
________________________________________________________________ Maxim Integrated Products
PWM CONTROL
OFF
General Description
4.5V TO 6.5V
SIGNAL
V
CC
ON
Applications
V
GND
EN
DLY
PWM
CC
Single-Phase MOSFET Driver
MAX8552
PGND
BST
DH
LX
DL
High-Speed, Wide-Input,
♦ Single-Phase Synchronous Drivers
♦ Up to 24V (max) Input Voltage
♦ 0.1µA (typ) Quiescent Current in Shutdown Over
♦ 0.5Ω/1.0Ω/0.7Ω/1.3Ω R
♦ 12ns (typ) Propagation Delay
♦ 11ns (typ) Rise/Fall Times with 3000pF Load
♦ Adaptive Dead Time and User-Programmable
♦ Up to 2MHz Operation with TDFN Package
♦ Up to 1.2MHz Operation with µMAX Package
♦ Enable Function
♦ TTL- and CMOS-Compatible Logic Inputs
♦ Available in a Space-Saving Thin DFN Package
Pin Configurations appear at end of data sheet.
MAX8552EUB
MAX8552ETB
Temperature
Delay Mode
PART
Typical Operating Circuit
V
6V TO 24V
Ordering Information
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
IN
OUT
Drivers
V
1.45V AT 20A
OUT
10 µMAX
10 TDFN
3mm x 3mm
PIN-PACKAGE
Features
1

Related parts for MAX8552ETB+T

MAX8552ETB+T Summary of contents

Page 1

... V CC 4.5V TO 6.5V ON OFF PWM CONTROL SIGNAL ________________________________________________________________ Maxim Integrated Products 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. High-Speed, Wide-Input, Single-Phase MOSFET Driver ♦ Single-Phase Synchronous Drivers ♦ 24V (max) Input Voltage ♦ ...

Page 2

High-Speed, Wide-Input, Single-Phase MOSFET Driver ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +7V CC PWM, EN, DL, DLY to GND ........................-0. BST to PGND..........................................................-0.3V to +35V LX to PGND ...............................................................-1V to +28V DH to PGND ..............................................-0.3V to ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 5V BST DLY EN GND +25°C.) (Note 1) PARAMETER PWM = GND, sourcing current DL Driver Resistance PWM = V sinking current DH Rise Time (t ) ...

Page 4

High-Speed, Wide-Input, Single-Phase MOSFET Driver ( 5V DLY HS_LOAD LS_LOAD PACKAGE-POWER DISSIPATION vs. PWM FREQUENCY 500 3300pF 3300pF HS LS 450 3300pF ...

Page 5

PIN NAME Input Supply Voltage. Connect to a supply voltage in the 4.5V to 6.5V range. Bypass to PGND with 2.2µF or larger capacitor, and bypass to GND with a 0.47µF or larger capacitor. External Synchronous-Rectifier ...

Page 6

High-Speed, Wide-Input, Single-Phase MOSFET Driver t pDLf PWM *WHEN R IS USED, t DLY pDHr OR THE ADAPTIVE DEAD TIME, t PWM DLY 6 _______________________________________________________________________________________ t pDHf t t fDL pDHr (t )* DLY ...

Page 7

Detailed Description The MAX8552 single-phase gate driver, along with the MAX8524/MAX8525 multiphase controllers, provide flexible one- to eight-phase CPU core-voltage supplies. The 1.0Ω/1.3Ω driver resistance allows up to 30A out- put current per phase. Each MOSFET driver in the MAX8552 ...

Page 8

High-Speed, Wide-Input, Single-Phase MOSFET Driver V CC 4. 4.7µF 0.47µF 4 GND 7 MAX8552 DLY OFF R1 6 PWM CONTROL PWM SIGNAL Figure 1. Typical Application Circuit Table 1. Typical ...

Page 9

Layout Guidelines The MAX8552 MOSFET driver sources and sinks large currents to drive MOSFETs at high switching speeds. The high di/dt can cause unacceptable ringing if the trace lengths and impedances are not well controlled. The following PC board layout ...

Page 10

High-Speed, Wide-Input, Single-Phase MOSFET Driver (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 Ø 0.50±0.1 0.6±0.1 1 0.6±0.1 TOP VIEW ...

Page 11

... 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 ____________________ 11 © 2003 Maxim Integrated Products ...

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