LT3574IMS#PBF Linear Technology, LT3574IMS#PBF Datasheet - Page 19

• 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

typical applications
12V TO 24V
(30V*)
V
IN
R6
28.7k
C1
10
µ
F
R5
10k
R1
499k
R2
71.5k
C2
10nF
R
SHDN/UVLO
TC
SS
ILIM
VC
R7
59k
C3
1000pF
90
80
70
60
50
40
30
20
10
0
0
LT3574
GND
V
5V Isolated Flyback Converter
IN
100
TEST
200
R
BIAS
R
REF
SW
FB
Efficiency
300
I
OUT
C4
4.7µF
(mA)
400
80.6k
R4
6.04k
C6
0.22
R3
500
µ
F
V
V
D2
IN
IN
R8
4.02k
5.6
600
3574 TA04b
= 24V
= 12V
D3
L1C
µ
H
50
•
3574 TA04
700
µ
T1
H
•
3:1:1
*OPTIONAL THIRD
T1: PULSE PA3019NL
D1: B340A
D3: PMEG6010
C5: MURATA, GRM32ER71A226K
WINDING FOR
30V OPERATION
•
5.6
OR WÜRTH ELEKTRONIK 750370041
D1
µ
H
C5
22
µ
F
V
5V
350mA
V
OUT
OUT
+
–
LT3574

3574f