LM3409MY National Semiconductor, LM3409MY Datasheet - Page 3

• Manufacturer Part Number: LM3409MY
• Description: LM3409 LM3409HV PFET Buck Controller for High Power LED Drives; Package: MINI SOIC EXP PAD; No of Pins: 10; Qty per Container: 1000/Reel
• Manufacturer: National Semiconductor

PEAK CURRENT COMPARATOR
V
A
V
I
t
SYSTEM CURRENTS
I
I
PFET DRIVER
R
VCC REGULATOR
V
V
V
I
OFF-TIMER AND ON-TIMER
V
t
t
t
UNDER VOLTAGE LOCKOUT
I
ADJ
DEL
IN
SD
CC-LIM
D-OFF
ON-MIN
OFF-MAX
UVLO
CST
ADJ
ADJ-OC
CC
CC-UVLO
CC-HYS
OFT
PGATE
Absolute Maximum Ratings
LM3409/09HV
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
for T
max specification limits are guaranteed by design, test, or statistical analysis.
LM3409/LM3409HV
VIN, EN, UVLO to GND
VIN to VCC, PGATE
VIN to PGATE
VIN to CSP, CSN
COFF to GND
COFF current
IADJ Current
Junction Temperature
Symbol
A
= T
J
= +25°C (Note 3). Limits appearing in boldface type apply over full Operating Temperature Range. Datasheet min/
V
current threshold
(Note 6)
V
gain
IADJ pin open circuit voltage
IADJ pin current
CSN pin falling delay
Operating current
Shutdown hysteresis current
Driver output resistance
VIN pin voltage - VCC pin
voltage
V
threshold
V
V
Off-time threshold
COFF threshold to PGATE
falling delay
Minimum on-time
Maximum off-time
UVLO pin current
CSP
ADJ
CC
CC
CC
under voltage lockout
UVLO hysteresis
regulator current limit
(Note 1)
to V
– V
CSN
CSP
Parameter
average peak
– V
CSN
±1 mA continuous
±5 mA continuous
threshold
(76V LM3409HV)
-2.8V for 100ns
9.5V for 100ns
-0.3V to 0.3V
V
-0.3V to 45V
IN
-0.3V to 7V
-0.3V to 4V
= 24V unless otherwise indicated. Typicals and limits appearing in plain type apply
150°C
V
V
0.1 < V
V
CSN fall - PGATE rise
Not switching
EN = 0V
Sourcing 50 mA
Sinking 50 mA
V
0 < I
V
V
V
ADJ
ADJ
ADJ
IN
CC
CC
UVLO
> 9V
CC
increasing
decreasing
= 1.0V
= V
= V
= 1V
ADJ
< 20 mA
ADJ-OC
ADJ-OC
< 1.2V
3
Conditions
Operating Ratings (LM3409/09HV)
(Note 1)
Storage Temp. Range
ESD Rating (Note 2)
Soldering Information
Lead Temperature (Soldering,
10sec)
VIN
Junction Temperature Range
Thermal Resistance θ
(eMSOP-10 Package)
(Note 5)
Infrared/Convection Reflow (15sec)
JA
(Note 4)
1.189
1.122
Min
188
231
3.8
5.5
30
(Note 3)
1.243
1.243
3.73
Typ
198
246
110
283
115
300
0.2
38
45
25
10
5
2
2
2
6
(75V LM3409HV)
−40°C to +125°C
-65°C to 125°C
(Note 4)
1.297
1.364
Max
208
261
211
6.4
6.5
6V to 42V
www.national.com
50°C/W
260°C
260°C
1kV
Units
V/V
mV
mA
mV
mA
µA
µA
nA
ns
ns
ns
µs
V
Ω
V
V
V