MAX8552 MAXIM [Maxim Integrated Products], MAX8552 Datasheet - Page 9

• Manufacturer Part Number: MAX8552
• Description: High-Speed, Wide-Input, Single-Phase MOSFET Driver
• Manufacturer: MAXIM [Maxim Integrated Products]

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 guidelines are recom-
mended when designing with the MAX8552:
1) Place all decoupling capacitors as close to their
2) Minimize the length of the high-current loop from
3) Provide enough copper area at and around the
respective IC pins as possible.
the input capacitor, the upper switching MOSFET,
and the low-side MOSFET back to the input-capaci-
tor negative terminal.
switching MOSFETs and inductors to aid in thermal
dissipation.
TOP VIEW
_______________________________________________________________________________________
PGND
GND
DLY
V
DL
CC
1
2
3
4
5
3mm x 4.9mm
Layout Guidelines
MAX8552
MAX
10
9
8
7
6
Single-Phase MOSFET Driver
BST
DH
LX
EN
PWM
High-Speed, Wide-Input,
4) Connect PGND of the MAX8552 as close as possi-
5) Keep LX away from sensitive analog components
A sample layout is available in the MAX8552 evaluation kit.
TRANSISTOR COUNT: 638
PROCESS: BiCMOS
ble to the source of the low-side MOSFETs.
and nodes. Place the IC and the analog compo-
nents on the opposite side of the board from the
power-switching node if possible.
PGND
GND
DLY
V
DL
CC
1
2
3
4
5
3mm x 3mm
MAX8552
TDFN
Pin Configurations
10
9
8
7
6
Chip Information
BST
DH
LX
EN
PWM
9