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LM3406MH 데이터시트(PDF) 4 Page - Texas Instruments

부품명 LM3406MH
상세설명  Constant Current, Buck Regulator for Driving High Power LEDs
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LM3406, LM3406HV, LM3406HV-Q1
SNVS512E – SEPTEMBER 2008 – REVISED MARCH 2014
www.ti.com
6 ELECTRICAL CHARACTERISTICS LM3406/LM3406HV/LM3406HV-Q1
VIN = 24V unless otherwise indicated. Unless otherwise specified, datasheet typicals and limits apply to LM3406, LM3406HV
and LM3406HV-Q1. Typicals and limits appearing in plain type apply for TA = TJ = +25°C
(1). Limits appearing in boldface
type apply over full Operating Temperature Range. Datasheet min/max specification limits are specified by design, test, or
statistical analysis.
Parameter
Test Conditions
Min
Typ
Max
Units
REGULATION COMPARATOR AND ERROR AMPLIFIER
187.5
200
210
VREF
CS Regulation Threshold
CS Decreasing, SW turns on
mV
191.0(2)
210.0(2)
V0V
CS Over-voltage Threshold
CS Increasing, SW turns off
300
mV
ICS
CS Bias Current
CS = 0V
0.9
µA
IVOUT
VOUT Bias Current
VOUT = 24V
83
µA
ICOMP
COMP Pin Current
CS = 0V
25
µA
Gm-CS
Error Amplifier Transconductance
150 mV < CS < 250 mV
145
µS
SHUTDOWN
Shutdown Threshold
RON Increasing
0.3
0.7
1.05
VSD-TH
V
Shutdown Threshold (LM3406HV-Q1)
RON Increasing
0.3
0.7
1.066
VSD-HYS
Shutdown Hysteresis
RON Decreasing
40
mV
ON AND OFF TIMER
tOFF-MIN
Minimum Off-time
CS = 0V
230
Programmed On-time
VIN = 24V, VO = 12V, RON = 200kΩ
800
1300
1800
tON
ns
Programmed On-time (LM3406HV-Q1)
VIN = 24V, VO = 12V, RON = 200kΩ
800
1300
1850
tON-MIN
Minimum On-time
280
VINS COMPARATOR
VINS-TH
VINS Pin Threshold
VINS decreasing
70
%VIN
IIN-2WD
VINS Pin Input Current
VINS = 24V * 0.7
25
µA
INTERNAL REGULATOR
VCC Regulated Output
0 mA < ICC < 5 mA
6.4
7
7.4
VCC-REG
V
VCC Regulated Output (LM3406HV-Q1)
0 mA < ICC < 5 mA
6.4
7
7.5
ICC = 5 mA, 6.0V < VIN < 8.0V,
VIN-DO
VIN - VCC
300
mV
Non-switching
VCC-BP-TH
VCC Bypass Threshold
VIN Increasing
8.8
V
VCC-LIM
VCC Current Limit
VIN = 24V, VCC = 0V
4
20
mA
VCC-UV-TH
VCC Under-voltage Lock-out Threshold
VCC Increasing
5.3
V
VCC-UV-HYS
VCC Under-voltage Lock-out Hysteresis
VCC Decreasing
150
mV
IIN-OP
IIN Operating Current
Non-switching, CS = 0.5V
1.2
mA
IIN-SD
IIN Shutdown Current
RON = 0V
240
350
µA
CURRENT LIMIT
Current Limit Threshold
1.7
2.1
2.7
ILIM
A
Current Limit Threshold (LM3406HV-Q1)
1.65
2.1
2.60
DIM COMPARATOR
VIH
Logic High
DIM Increasing
2.2
V
VIL
Logic Low
DIM Decreasing
0.8
V
IDIM-PU
DIM Pull-up Current
DIM = 1.5V
80
µA
MOSFET AND DRIVER
RDS-ON
Buck Switch On Resistance
ISW = 200 mA, BOOT = 6.3V
0.37
0.75
VDR-UVLO
BOOT Under-voltage Lock-out Threshold
BOOT–SW Increasing
1.7
2.9
4.3
V
VDR-HYS
BOOT Under-voltage Lock-out Hysteresis
BOOT–SW Decreasing
370
mV
THERMAL SHUTDOWN
TSD
Thermal Shutdown Threshold
165
°C
TSD-HYS
Thermal Shutdown Hysteresis
25
°C
(1)
Typical values represent most likely parametric norms at the conditions specified.
(2)
Specified with junction temperature from 0°C - 125°C.
4
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Copyright © 2008–2014, Texas Instruments Incorporated
Product Folder Links: LM3406 LM3406HV LM3406HV-Q1


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