LT3750EMS#PBF Linear Technology, LT3750EMS#PBF Datasheet - Page 14

• Manufacturer Part Number: LT3750EMS#PBF
• Description: IC CTLR CAPACITOR CHARGE 10-MSOP
• Manufacturer: Linear Technology
• Type: Flyback, Forward Converterr

Specifications of LT3750EMS#PBF

• Applications: Power Supply Controller
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Ic Function: Capacitor Charger Controller
• Supply Voltage Range: 3V To 24V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: MSOP
• No. Of Pins: 10
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LT3750
14
TYPICAL APPLICATIO S
100
60
90
80
70
0
50
9A Charging Efficiency
100
V
V
V
TRANS
TRANS
TRANS
V
OUT
150
= 12V
= 18V
(V)
= 6V
200
V
TRANS
V
12V
250
CC
3750 TA04b
300
U
C1
10µF
OFF ON
C1: 25V X5R OR X7R CERAMIC CAPACITOR
C2: 25V X5R OR X7R CERAMIC CAPACITOR
C3: 25V SANYO OS-CON 25SVP56M
C4: 330V RUBYCON PHOTOFLASH CAPACITOR
D1: DIODES INC. MURS160
M1: PHILIPS PHM2INQ15T
T1: TDK DCT20EFD-U32S003 FLYBACK TRANSFORMER
300
250
200
150
100
50
0
100k
0
V
V
DONE
CHARGE
TRANS
300V, 9A Capacitor Charger
GND
CC
0.05
C2
10µF
V
LT3750
= 18V
TRANS
9A Charge Time
0.10
TIME (SECONDS)
SOURCE
RV
RDCM
GATE
RBG
OUT
0.15
V
2.49k
TRANS
V
0.20
TRANS
C3
56µF
×3
= 12V
60.4k
43k
= 6V
100pF
0.25
7, 8, 9, 10
3750 TA04c
3, 4, 5, 6
3750 TA04a
0.30
•
1:10
T1
M1
8mΩ
NMOS DRAIN
NMOS DRAIN
•
1
12
CURRENT
VOLTAGE
D1
20V/DIV
4A/DIV
+
C4
100µF
V
300V
Typical Switching Waveforms
OUT
5µs/DIV
3750 TA04d
3750fa