lt3755-2 Linear Technology Corporation, lt3755-2 Datasheet - Page 9

• Manufacturer Part Number: lt3755-2
• Description: Lt3755/lt3755-1/lt3755-2 40vin, 75vout Led Controllers Features
• Manufacturer: Linear Technology Corporation

block DiagraM
SHDN/UVLO
ISN
ISP
CTRL
V
REF
2V
1.22V
+
–
1.1V
SHORT-CIRCUIT
2.1µA
150mV
–
+
DETECT
A7
–
+
+
+
–
A3
A6
BUFFER
CTRL
+
–
A10
SHDN
1.25V
5k
140µA
170k
SCILMB
FB
Q2
50k
+
–
+
–
g
A1
m
EAMP
A5
165°C
LOGIC
g
FAULT
T
m
LIM
VC
10µA AT
FB = 1.25V
10µA AT
A1
+
= A1
1.3V
10µA
SSCLAMP
10µA
–
COMPARATOR
–
+
SCILMB
SS
1.25V
OVFB
VC
+
–
COMPARATOR
+
+
–
A2
LT3755/LT3755-1/LT3755-2
PWM
PROG
FREQ
100KHz TO 1MHz
OSCILLATOR
GENERATOR
PWMOUT
RAMP
RT
PWM
1.25V
SYNC
R
OPTION FOR
LT3755-1
1.2V
S
FB
–
+
A8
Q
LDO
–
+
I
DRIVER
SENSE
A4
V
7.15V
+
–
IN
OPENLED
OPTION
FOR
LT3755
AND
LT3755-2
INTV
SENSE
GATE
GND
37551 BD
CC
37551fd