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LM3401 датащи(PDF) 4 Page - Texas Instruments

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номер детали LM3401
подробное описание детали  Hysteretic PFET Controller for High Power LED Drive
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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LM3401
SNVS516C – AUGUST 2007 – REVISED MAY 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
Specifications in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ)
range of -40°C to +125°C. Unless otherwise stated, VIN = 24V. Minimum and Maximum limits are specified through test,
design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for
reference purposes only
(1).
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM
VREF
Reference Voltage
188
200
212
mV
ΔVREF / ΔVIN
Line regulation
5V < VIN < 35V
0.002
mV/V
IQ
Operating VIN Current (2)
1.05
mA
IHYS
Hysteresis Pin Source Current
HYS pin = 50 mV to 500 mV
15
20
25
µA
SNSHYS_MU
SNS Comparator Hysteresis Multiplier
HYS pin = 250 mV
0.168
0.20
0.224
-
TDLY
SNS Comparator to HG Delay
SNS rising
46
80
ns
TDIM
DIM to HG Delay
DIM rising
69
120
ns
IILIM
ILIM Pin Sink Current
4
5.5
8
µA
VCL_OFF
Current Limit Comparator Offset
-10
0
+10
mV
VZC
Zero Cross Comparator Threshold
Measured at CS pin
-70
-130
-200
mV
VDIM
DIM Threshold Voltage
1.85
2.0
2.25
V
Hysteresis
286
mV
ISNS
SNS pin Bias Current
VSNS = 200 mV
300
780
nA
UVLO
UVLO threshold
Vin rising
4.3
4.48
V
Hysteresis
0.5
V
DRIVER
Ton_min
Minimum on-time
150
ns
RHG
Gate Drive Resistance
Source Current = 100 mA
5.3
Sink Current = 100 mA
10.5
IHG
Driver Output Current
Source, HG = VIN -2.5V
0.41
A
Sink, HG = VIN -2.5V
0.33
A
VHG
HG on voltage
Referenced to VIN, steady state voltage
-4.2
-4.7
-5.5
V
(1)
All room temperature limits are 100% production tested. All limits at temperature extremes are specified through correlation using
standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(2)
IQ specifies the current into the VIN pin and applies to non-switching operation.
4
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