(Note 2) ............................................. –40°C to 125°C
Maximum Junction Temperature........................... 125°C
Storage Temperature Range................... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
CTRL
ISN
12 FB
17
11 PWMOUT
10 GATE
9 SENSE
5
RT
6
SHDN/UVLO
7
INTV
CC
8
V
IN
ISP
VC
16 15 14 13
16
15
14
13
12
11
10
9
GATE
SENSE
V
IN
INTV
CC
SHDN/UVLO
RT
SS
SYNC OR
OPENLED
V
REF
1
PWM 2
SYNC OR
OPENLED
3
SS 4
TOP VIEW
PWMOUT
FB
ISN
ISP
VC
CTRL
V
REF
PWM
1
2
3
4
5
6
7
8
MSE PACKAGE
16-LEAD PLASTIC MSOP
T
JMAX
= 125°C,
θ
JA
= 43°C/W,
θ
JC
= 4°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
UD PACKAGE
16-LEAD (3mm 3mm) PLASTIC QFN
T
JMAX
= 125°C,
θ
JA
= 68°C/W,
θ
JC
= 4.2°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3756EMSE#PBF
LT3756IMSE#PBF
LT3756EMSE-1#PBF
LT3756IMSE-1#PBF
LT3756EUD#PBF
LT3756IUD#PBF
LT3756EUD-1#PBF
LT3756IUD-1#PBF
TAPE AND REEL
LT3756EMSE#TRPBF
LT3756IMSE#TRPBF
LT3756EMSE-1#TRPBF
LT3756IMSE-1#TRPBF
LT3756EUD#TRPBF
LT3756IUD#TRPBF
LT3756EUD-1#TRPBF
LT3756IUD-1#TRPBF
PART MARKING*
3756
3756
37561
37561
LDMQ
LDMQ
LDMR
LDMR
PACKAGE DESCRIPTION
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead (3mm
×
3mm) Plastic QFN
16-Lead (3mm
×
3mm) Plastic QFN
16-Lead (3mm
×
3mm) Plastic QFN
16-Lead (3mm
×
3mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–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.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
This product is only offered in trays. For more information go to:
http://www.linear.com/packaging/
37561f
2
LT3756/LT3756-1
ELECTRICAL CHARACTERISTICS
PARAMETER
V
IN
Minimum Operating Voltage
V
IN
Shutdown I
Q
V
IN
Operating I
Q
(Not Switching)
V
REF
Voltage
V
REF
Line Regulation
SENSE Current Limit Threshold
SENSE Input Bias Current
SS Pull-Up Current
Error Amplifier
LED Current Sense Threshold (V
ISP
– V
ISN
)
CTRL Threshold Linear Programming Range
CTRL Input Bias Current
LED Current Sense Amplifier Input Common Mode
Range (V
ISP
)
ISP/ISN Short-Circuit Threshold (V
ISP
– V
ISN
)
ISP/ISN Short-Circuit Fault Sensing Common Mode
Range (V
ISN
)
ISP/ISN Input Bias Current
LED Current Sense Amplifier g
m
VC Output Impedance
VC Standby Input Bias Current
FB Regulation Voltage (V
FB
)
V
ISP
= V
ISN
FB Amplifier g
m
FB Pin Input Bias Current
FB Open LED Threshold
FB Overvoltage Threshold
VC Current Mode Gain –
ΔV
VC
/ΔV
SENSE
Oscillator
Switching Frequency
Minimum Off-Time
Linear Regulator
INTV
CC
Regulation Voltage
Dropout (V
IN
– INTV
CC
)
INTV
CC
Undervoltage Lockout
INTV
CC
Current Limit
INTV
CC
Current in Shutdown
SHDN/UVLO
= 0V, INTV
CC
= 7V
I
INTVCC
= –10mA, V
IN
= 7V
3.9
14
7
7.15
1
4.1
18
8
4.3
23
12
7.3
V
V
V
mA
μA
37561f
The
l
denotes the specifications which apply over the full operating temp-
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
