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LM3409HV-Q1 Folha de dados(PDF) 6 Page - Texas Instruments

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Nome de Peças LM3409HV-Q1
Descrição Electrónicos  P-FET Buck Controller for High-Power LED Drivers
Download  45 Pages
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

LM3409HV-Q1 Folha de dados(HTML) 6 Page - Texas Instruments

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LM3409, LM3409-Q1, LM3409HV, LM3409HV-Q1
SNVS602L – MARCH 2009 – REVISED JUNE 2016
www.ti.com
Product Folder Links: LM3409 LM3409-Q1 LM3409HV LM3409HV-Q1
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
(1)
Typical values represent most likely parametric norms at the conditions specified and are not ensured.
(2)
Minimum and maximum limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through
correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Texas Instrument's Average Outgoing Quality
Level (AOQL).
(3)
The current sense threshold limits are calculated by averaging the results from the two polarities of the high-side differential amplifier.
7.5 Electrical Characteristics
VIN = 24 V unless otherwise indicated. Typicals and limits appearing in plain type apply for TA = TJ = 25°C
(1). Data sheet
minimum and maximum specification limits are specified by design, test, or statistical analysis.
PARAMETER
TEST CONDITIONS
MIN(2)
TYP(1)
MAX(2)
UNIT
PEAK CURRENT COMPARATOR
VCST
VCSP – VCSN average peak
current threshold(3)
VADJ = 1 V
188
198
208
mV
VADJ = VADJ-OC
231
246
261
AADJ
VADJ to VCSP – VCSN threshold
gain
0.1 < VADJ < 1.2 V
VADJ = VADJ-OC
0.2
V/V
VADJ-OC
IADJ pin open circuit voltage
1.189
1.243
1.297
V
IADJ
IADJ pin current
3.8
5
6.4
µA
tDEL
CSN pin falling delay
CSN fall - PGATE rise
38
ns
SYSTEM CURRENTS
IIN
Operating input current
Not switching
2
mA
ISD
Shutdown input current
EN = 0 V
110
µA
PFET DRIVER
RPGATE
Driver output resistance
Sourcing 50 mA
2
Sinking 50 mA
2
VCC REGULATOR
VCC
VIN pin voltage - VCC pin voltage VIN > 9 V
0 < ICC < 20 mA
5.5
6
6.5
V
VCC-UVLO
VCC undervoltage lockout
threshold
VCC increasing
3.73
V
VCC-HYS
VCC UVLO hysteresis
VCC decreasing
283
mV
ICC-LIM
VCC regulator current limit
30
45
mA
OFF-TIMER AND ON-TIMER
VOFT
Off-time threshold
1.122
1.243
1.364
V
tD-OFF
COFF threshold to PGATE falling
delay
25
ns
tON-MIN
Minimum ON-time
115
211
ns
tOFF-MAX
Maximum OFF-time
300
µs
UNDERVOLTAGE LOCKOUT
IUVLO
UVLO pin current
VUVLO = 1 V
10
nA
VUVLO-R
Rising UVLO threshold
1.175
1.243
1.311
V
IUVLO-HYS
UVLO hysteresis current
22
µA
ENABLE
IEN
EN pin current
10
nA
VEN-TH
EN pin threshold
VEN rising
1.74
V
VEN falling
.5
VEN-HYS
EN pin hysteresis
420
mV
tEN-R
EN pin rising delay
EN rise - PGATE fall
42
ns
tEN-F
EN pin falling delay
EN fall - PGATE rise
21
ns


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