LT3798 LINER [Linear Technology], LT3798 Datasheet - Page 20

• Manufacturer Part Number: LT3798
• Description: Isolated No Opto-Coupler Flyback Controller
• Manufacturer: LINER [Linear Technology]

LT3798
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LT3799/LT3799-1
LT3748
LT3573/LT3574/LT3575
LT3511/LT3512
LT3757/LT3758
LT3957/LT3958
LTC3803/LTC3803-3/LTC3803-5 200kHz/300kHz Flyback Controllers
LTC3805/LTC3805-5
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
C2:
C8:
C10:
D1:
D2, D3: DIODES INC. BAV20W
D4:
D5:
20V TO 60V
TDK C5750X7S2A106M
VISHAY 440LD22-R
MURATA GRM32ER7YA106KA12L
DIODES INC. DFLS1150
ON SEMICONDUCTOR MBR20200CT
DIODES INC. DFLS2100
V
IN
●
FAX: [phone]
R5
402k
R6
51.1k
R11
100k
R12
221k
C2
10μF
DESCRIPTION
Offline Isolated Flyback LED Controller
with Active PFC
100V Isolated Flyback Controller
40V Isolated Flyback Converters
100V Isolated Flyback Converters
40V/100V Flyback/Boost Controllers
40V/100V Flyback/Boost Converters
Adjustable Frequency Flyback
Controllers
INTV
TO
CC
R4
24k
R9
40.2k
R10
34.8k
V
EN/UVLO
V
CTRL3
CTRL2
CTRL1
OVP
R7
6.8k
R8
6.8k
D3
IN_SENSE
REF
VC
●
R3
16.2k
112W Wide DC Input Industrial Power Supply
www.linear.com
V
C3
0.1μF
IN
COMP
LT3798
C5
10μ F
D2
C7, 22nF
+
20Ω
R17
INTV
SENSE
COMP
GATE
DCM
GND
CC
FB
–
R13
15k
M1:
T1:
Z1:
Z2:
Z3:
C4
15pF
COMMENTS
No Opto-Coupler Required, TRIAC Dimmable, V
External Components, MSOP-16E
5V ≤ V
Monolithic No-Opto Flybacks with Integrated 1.25A/0.65A/2.5A Switch
Monolithic No-Opto Flybacks with Integrated 240mA/420mA Switch
Universal Controllers with Small Package and Powerful Gate Drive
Monolithic with Integrated 5A/3.3A Switch
V
V
IN
IN
and V
and V
FAIRCHILD FDP2532
WÜRTH ELEKTRONIK 750312872
DIODES INC. SMCJ60A
CENTRAL SEMICONDUCTOR CMZ59398
FAIRCHILD SMBJ170A
R14
100k
R15
5.9k
C9
4.7μF
IN
≤ 100V, No Opto Flyback , MSOP-16 with High Voltage Spacing
OUT
OUT
Limited Only by External Components
Limited Only by External Components
C6
22pF
D1
Z1
M1
R
0.004Ω
S
1:1:0.8
D4
“Y1 CAP”
2.2nF
C8
© LINEAR TECHNOLOGY CORPORATION 2012
D5
Z3
3798 TA04
IN
and V
C10
10μ F
×4
OUT
LT 0212 • PRINTED IN USA
Limited Only by
Z2
28V
4A
3798f