LT3574IMS#PBF Linear Technology, LT3574IMS#PBF Datasheet - Page 20

• Manufacturer Part Number: LT3574IMS#PBF
• Description: IC PWM FLYBCK ISO CM 16MSOP
• Manufacturer: Linear Technology
• Type: Flyback, Isolated, PWM - Current Moder

Specifications of LT3574IMS#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 60V
• Current - Output: 650mA
• Frequency - Switching: 40kHz ~ 1MHz
• Voltage - Input: 3 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: *
• Package / Case: 16-MSOP
• Voltage - Supply: 3 V ~ 40 V
• Frequency-max: 1MHz
• Duty Cycle: 52%
• Pwm Type: Current Mode
• Buck: No
• Boost: No
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LT3574
typical applications
0
12V TO 24V
(36V*)
12V
V
IN
V
IN
R6
19.1k
R6
59k
C1
10
µ
C1
10
F
µ
R5
10k
F
R5
10k
R1
499k
R2
71.5k
R1
499k
R2
71.5k
C2
10nF
SHDN/UVLO
R
SS
C2
10nF
TC
ILIM
SHDN/UVLO
SS
VC
TC
R
ILIM
R7
40.2k
VC
C3
4700pF
R7
25.5k
C3
1500pF
LT3574
3.3V Isolated Flyback Converter
12V Isolated Flyback Converter
GND
V
LT3574
IN
3574 TA06
GND
V
IN
TEST
TEST
R
BIAS
R
REF
V
SW
FB
IN
R
BIAS
R
REF
SW
FB
C4
4.7µF
T1: COILTRONICS VP1-0102-R
D1: B340A
D2: PMEG6010
R4
6.04k
C6
0.22
178k
R3
R4
6.04k
C6
0.22
76.8k
µ
R3
F
µ
F
R8
2k
D2
D2
3.1
R8
2k
58.5
D3
L1C
µ
H
50
µ
T1
H
µ
3574 TA05
T1
H
•
•
3:1
4:1:1
T1: PULSE PA3018NL
D1: B340A
D3: PMEG6010
•
*OPTIONAL THIRD
•
6.5
WINDING FOR
36V OPERATION
3.1
OR WÜRTH ELEKTRONIK
750311304
D1
µ
D1
µ
H
H
C5
22
C5
47
µ
F
µ
V
12V
150mA
V
F
V
3.3V
0.5A
V
OUT
OUT
OUT
OUT
–
+
–
3574f