LM27222M/NOPB National Semiconductor, LM27222M/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM27222M/NOPB
• Description: IC MOSFET DVR SYNC 4.5A HS 8SOIC
• Manufacturer: National Semiconductor

Specifications of LM27222M/NOPB

• Configuration: High and Low Side, Synchronous
• Input Type: PWM
• Delay Time: 14ns
• Current - Peak: 3A
• Number Of Configurations: 1
• Number Of Outputs: 2
• High Side Voltage - Max (bootstrap): 30V
• Voltage - Supply: 4 V ~ 6.85 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Number Of Drivers: 2
• Driver Configuration: Invert/Non-Invert
• Driver Type: High and Low Side
• Rise Time: 17ns
• Fall Time: 14ns
• Propagation Delay Time: 8ns
• Operating Supply Voltage (max): 6.85V
• Peak Output Current: 4.5mA
• Power Dissipation: 720mW
• Operating Supply Voltage (min): 4V
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM27222M

www.national.com
Pin #
Connection Diagram
Ordering Information
Pin Descriptions
1
2
3
4
5
6
7
8
Order Number
LM27222SDX
LM27222MX
LM27222SD
LM27222M
Pin Name
GND
LEN
V
SW
HG
CB
LG
IN
CC
LLP-8
SO-8
Size
High-side driver return. Should be connected to the common node of high and low-side MOSFETs.
High-side gate drive output. Should be connected to the high-side MOSFET gate. Pulled down
internally to SW with a 10K resistor to prevent spurious turn on of the high-side MOSFET when the
driver is off.
Bootstrap. Accepts a bootstrap voltage for powering the high-side driver.
Accepts a PWM signal from a controller. Active High. Pulled down internally to GND with a 150K
resistor to prevent spurious turn on of the high-side MOSFET when the controller is inactive.
Low-side gate enable. Active High. Pulled down internally to GND with a 150K resistor to prevent
spurious turn-on of the low-side MOSFET when the controller is inactive.
Connect to +5V supply.
Low-side gate drive output. Should be connected to low-side MOSFET gate. Pulled down internally to
GND with a 10K resistor to prevent spurious turn on of the low-side MOSFET when the driver is off.
Ground.
NSC Drawing #
SDC08A
LLP-8 (NS Package # SDC08A) θ
M08A
SO-8 (NS Package # M08A) θ
Top View
Package Type
Tape and Reel
Tape and Reel
Tape and Reel
or
2
Rail
Pin Function
JA
JA
= 172˚C/W
20117901
= 39˚C/W
2500 Units/Reel
1000 Units/Reel
4500 Units/Reel
Supplied As
95 Units/Rail