lm3150mhx National Semiconductor Corporation, lm3150mhx Datasheet - Page 3

• Manufacturer Part Number: lm3150mhx
• Description: Simple Switcher Controller, 42v Synchronous Step-down
• Manufacturer: National Semiconductor Corporation

Start-Up Regulator, VCC
GATE Drive
Soft-Start
Current Limit
ON/OFF Timer
Enable Input
VIN, RON to GND
SW to GND
BST to SW
BST to GND
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
junction temperature (T
correlation. Typical values represent the most likely parametric norm at T
Unless otherwise stated the following conditions apply: V
R
R
VCC
R
R
DS-HG-Pull-Down
DS-LG-Pull-Down
VIN - VCC
t
DS-HG-Pull-Up
VCC
DS-LG-Pull-Up
CC-UVLO-D
Symbol
V
t
I
I
I
ON-MIN
I
VCC
I
SS-DIS
LIM-TH
EN-HYS
Q-BST
IN-SD
t
V
VCCL
UVLO-HYS
I
t
OFF
I
ON
SS
IN
EN
UVLO
VIN - VCC Dropout Voltage
VCC Current Limit (Note 3)
VCC Under-Voltage Lockout Threshold
(UVLO)
VCC UVLO Hysteresis
VCC UVLO Filter Delay
Input Operating Current
Input Operating Current, Device
Shutdown
Boost Pin Leakage
HG Drive Pull–Up On-Resistance
HG Drive Pull–Down On-Resistance
LG Drive Pull–Up On-Resistance
LG Drive Pull–Down On-Resistance
SS Pin Source Current
SS Pin Discharge Current
Current Limit Sense Pin Source Current
ON Timer Pulse Width
ON Timer Minimum Pulse Width
OFF Timer Minimum Pulse Width
EN Pin Input Threshold Trip Point
EN Pin Threshold Hysteresis
J
) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design, or statistical
Parameter
Limits in standard type are for T
(Note 1)
-0.3V to 47V
-0.3V to 52V
-0.3V to 7V
-3V to 47V
IN
= 18V.
C
I
I
VCC = 0V
VCC Increasing
VCC Decreasing
No Switching, V
V
V
I
I
I
I
V
V
V
V
V
V
V
(Note 4)
V
V
VCC
VCC
HG
HG
LG
LG
EN
BST
SS
IN
FB
IN
FB
IN
FB
EN
EN
VCC
3
Source = 200 mA
Sink = 200 mA
Source = 200 mA
Sink = 200 mA
= 10V, R
= 18V, R
= 42V, R
= 0V
= 0.6V
= 0.6V
= 0.6V
= 0V
Rising
Falling
= 2 mA, V
= 30 mA, V
– V
= 1 µF, 0 mA to 40 mA
All Other Inputs to GND
ESD Rating (Note 2)
Storage Temperature Range
V
Junction Temperature Range (T
EN
Operating Ratings
SW
IN
Conditions
= 6V
ON
ON
ON
J
= 25°C, and are provided for reference purposes only.
IN
= 100 kΩ,
= 100 kΩ,
= 100 kΩ,
IN
FB
J
= 5.5V
= 25°C only; limits in boldface type apply over the
= 5.5V
= 1V
5.65
4.75
1.14
Min
5.9
65
75
J
)
(Note 1)
5.95
1.02
0.62
0.36
1.20
Typ
330
100
475
200
200
370
120
5.1
3.5
3.4
3.4
7.7
40
32
85
3
2
5
2
−40°C to + 125°C
-65°C to +150°C
Max
6.25
5.40
1.26
525
9.5
www.national.com
55
95
-0.3V to 7V
5
6V to 42V
0V to 5V
2 kV
Units
mV
mA
mV
mA
mV
µA
nA
µA
µA
µA
µs
µs
ns
ns
V
V
Ω
Ω
Ω
Ω
V