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LT3932 Datasheet(PDF) 13 Page - Analog Devices

Part # LT3932
Description  60V, 3A Silent Switcher Synchronous, Step-Up LED Driver
PDF  28 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT3932 Datasheet(HTML) 13 Page - Analog Devices

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LT8386
13
Rev. 0
For more information www.analog.com
BLOCK DIAGRAM
8386 BD
–
+
+
–
+
–
+
–
+
–
+
–
+
+
CONTROL
BUFFER
gm = 140µA/V
CURRENT
REGULATION
AMPLIFIER
A/D
DETECT
INTERNAL VCC
REGULATOR
UVLO AND
OVLO
200kHz
TO 2MHz
OSCILLATOR
V/I
CONVERTER
FB
REF
VC
REF
INTERNAL
PWM SIGNAL
SOFT-START
AND
LED FAULT CONTROL
PWMTG
DRIVER
R
Q
MBSW
MTSW
S
SYNCHRONOUS
CONTROLLER
PEAK
CURRENT
COMPARATOR
2V REFERENCE
OVLO
EN/UVLO
GND
RT
CTRL
SS
100nF
4.7nF
10k
22µA
2µA
PWMTG
VIN
499k
140k
INTVCC
PWM
200m
28k
45.3k
25k
1.2V
2.5k
10x
2.5k
0.25V
1.25V
1F
1.5V
SYNC/SPRD
VOUT
10µF
GND
(EXPOSED PAD)
VOUT
VREF
VIN
INTVCC
BST
SW
VC
RP
2.2µF
4.7µH
33nF
–
+ +
gm = 1000µA/V
VOLTAGE
REGULATION
AMPLIFIER
4.7µF
VOUT – 10V
REGULATOR
ISMON
ISN
ISP
100k
549k
12.1k
FB
FAULT
2
3
4
5
6
7
16
17
8
13
11
18
15
12
1
28
27
9
10
14
19
20
21
22
23
24
INTVCC
0.1F
0.1F



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