LT3475IFE-PBF データシートの表示（PDF） - Linear Technology
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LT3475IFE-PBF Datasheet PDF : 20 Pages
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LT3475/LT3475-1
ABSOLUTE AXI U RATI GS
(Note 1)
VIN Pin .........................................................(-0.3V), 40V
BOOST Pin Voltage ...................................................60V
BOOST Above SW Pin...............................................30V
OUT, LED, Pins (LT3475)...........................................15V
OUT, LED Pins (LT3475-1).........................................25V
PWM Pin...................................................................15V
VADJ Pin ......................................................................6V
VC, RT, REF Pins ..........................................................3V
SHDN Pin...................................................................VIN
Maximum Junction Temperature (Note 2)............. 125°C
Operating Temperature Range (Note 3)
LT3475E/LT3475E-1............................. –40°C to 85°C
LT3475I/LT3475I-1............................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature Range (Soldering, 10 sec) ....... 300°C
PIN CONFIGURATION
TOP VIEW
OUT1 1
LED1 2
BOOST1 3
SW1 4
VIN 5
VIN 6
SW2 7
BOOST2 8
LED2 9
OUT2 10
20 PWM1
19 VADJ1
18 VC1
17 REF
16 SHDN
21
15 GND
14 RT
13 VC2
12 VADJ2
11 PWM2
FE PACKAGE
20-LEAD PLASTIC TSSOP
TJMAX = 125°C, θJA = 30°C/W, θJC = 8°C/W
EXPOSED PAD (PIN 21) IS GROUND AND MUST
BE ELECTRICALLY CONNECTED TO THE PCB.
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3475EFE#PBF
LT3475EFE#TRPBF
LT3475EFE
20-Lead Plastic TSSOP
–40°C to 85°C
LT3475IFE#PBF
LT3475IFE#TRPBF
LT3475IFE
20-Lead Plastic TSSOP
–40°C to 125°C
LT3475EFE-1#PBF
LT3475EFE-1#TRPBF
LT3475FE-1
20-Lead Plastic TSSOP
–40°C to 85°C
LT3475IFE-1#PBF
LT3475IFE-1#TRPBF
LT3475FE-1
20-Lead Plastic TSSOP
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VBOOST = 16V, VOUT = 4V unless otherwise noted (Note 3)
PARAMETER
Minimum Input Voltage
Input Quiescent Current
Shutdown Current
CONDITIONS
Not Switching
SHDN = 0.3V, VBOOST = VOUT = 0V
MIN TYP MAX UNITS
●
3.7
4
V
6
8
mA
0.01
2
μA
3475fb
2
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