LM3464MH National Semiconductor, LM3464MH Datasheet - Page 6

• Manufacturer Part Number: LM3464MH
• Description: IC, LED DRIVER, BUCK, 28TSSOP
• Manufacturer: National Semiconductor

Specifications of LM3464MH

• No. Of Outputs: 4
• Input Voltage: 12V To 80V
• Driver Case Style: TSSOP
• Svhc: No SVHC (15-Dec-2010)
• No. Of Pins: 28
• Operating Temperature Range: -40°C To +125°C
• Topology: Linear
• Efficiency: 98%
• Led Driver Application: Streetlights, Solid State Lighting Solutions
• Dimming Control Type: PWM / Analogue
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Symbol
LED Current Regulator
V
V
I
I
Fault Detection and Handling
V
V
V
I
I
V
R
Thermal Protection
T
T
T
T
Thermal Resistance
θ
θ
GDx-MAX
DRx
FAULT-CAP
FAULT-CAP-OVP
OTM-TH
OTM-HYS
SD
SD-HYS
JA
JC
GDx-MAX
GDx-MIN
OVP-TH
SHORTFAULT
OPENFAULT
FAULT-CAP
Faultb
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 3: Measurements are performed on a 4 layer JEDEC board with 10 vias provided under the exposed pad. See JESD51–1 to JESD51–11. The value of
θ
Note 4: V
JA
is specifically dependent on the PCB trace area, trace material and the number of layers and thermal vias.
CC
provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading.
Parameter
GDx gate driver max. output voltage
GDx gate driver min. output voltage
GDx gate driver short circuit current
DRx pin input current
DRx Pin over-voltage protection threshold
DRx short fault threshold
SEx open fault threshold
FAULT_CAP pin output current
FAULT_CAP pin output current at DRx
over-voltage
FAULT-CAP pin voltage threshold at fault
timer expire
Faultb pin to GND resistance
Over Temperature Monitor Threshold
Over Temperature Monitor Hysteresis
Thermal shutdown temperature
Thermal shutdown temperature hysteresis T
Junction to Ambient
Junction to Case
(Note
(Note
3)
3)
Conditions
GDx short to GND
V
V
Measure at DRx pin
Any V
Measure at SEx pin
All V
Any V
V
LED fault = TRUE
T
eTSSOP-28 Package
J
J
6
DRx
DRx
FAULT-CAP
rising
falling
DRx
= 10V
= 100V
DRx
DRx
< V
< 2.5V
≥
rising
OVP-TH
V
OVP-TH
4.73
8.35
Min
18
30
V
0.115
33.5
Typ
105
110
125
165
CC
8.4
3.6
25
55
19
25
20
20
6
–1
0.127
Max
9.75
29
70
21
8
Units
°C/W
°C/W
mA
mV
μA
μA
uA
uA
°C
°C
°C
°C
Ω
V
V
V
V
V