LTC4444 Linear Technology, LTC4444 Datasheet - Page 12

• Manufacturer Part Number: LTC4444
• Description: High Voltage Synchronous N-Channel MOSFET Driver
• Manufacturer: Linear Technology

LTC4444
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LTC1693 Family
LT
LT3010/LT3010-5
LTC3703
LTC3722-1/
LTC3722-2
LTC3723-1/
LTC3723-2
LTC3780
LTC3785
LTC3810
LTC3813
LT3845
LTC3901
LTC4440/
LTC4440-5
LTC4441
LTC4442/LTC4442-1 High Speed Synchronous N-Channel MOSFET Drivers
No R
12
®
1952/LTC3900
SENSE
0.01μF
0.1μF
0.1μF
2.2μF, 100V, TDK C4532X7R2A225MT
100μF, 100V SANYO 100ME 100AX
C1: SANYO 16ME330WF
D1: DIODES INC. BAV19WS
D2: DIODES INC. 1N5819HW-7-F
D3: DIODES INC. B320A-13-F
D4: DIODES INC. MMBZ5230B-7-F
D5: DIODES INC. B1100-13-F
L1: SUMIDA CDEP147-8R0
is a trademark of Linear Technology Corporation.
47pF
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
100pF
20k
D4
V
OS +
SENSE
SENSE
113k
1%
DESCRIPTION
High Speed Dual MOSFET Drivers
36V to 72V Input Isolated DC/DC Converter Chip Sets
50mA, 3V to 80V Low Dropout Micropower Regulators Low Quiescent Current (30μA), Stable with Small (1μF) Ceramic Capacitor
100V Synchronous Switching Regulator Controller
Synchronous Dual Mode Phase Modulated Full-Bridge
Controllers
Synchronous Push-Pull PWM Controllers
High Power Buck-Boost Controller
Buck-Boost Controller
100V Current Mode Synchronous Step-Down Switching
Regulator Controller
100V Current Mode Synchronous Step-Up Controller
High Power Synchronous DC/DC Controller
Secondary Side Synchronous Driver for Push-Pull and
Full-Bridge Converters
High Speed, High Voltage, High Side Gate Drivers
6A MOSFET Driver
V
IN
+
–
100Ω
100Ω
●
150k
FAX: [phone]
8.06k
1%
LTC3780 High Effi ciency 8V-80V V
68pF
10
11
12
1
2
3
4
5
6
7
8
9
0.1μF
PGOOD
SS
SENSE
SENSE
I
V
SGND
RUN
FCB
PLLFLTR
PLLIN
STBYMD
TH
OSENSE
10k
LTC3780EG
●
+
–
www.linear.com
6V
BOOST1
BOOST2
EXTV
INTV
PGND
SW1
SW2
D2
TG1
BG1
BG2
TG2
V
CC
CC
IN
24
23
22
21
20
19
18
17
16
15
14
13
0.22μF
TG1
16V
0.1μF
16V
6V
6V
10μF
10V
SW1
IN
to 12V/5A Buck-Boost DC/DC Converter
0.1μF
16V
1μF
16V
COMMENTS
1.5A Peak Output Current, 4.5V ≤ V
Synchronous Rectifi cation; Overcurrent, Overvoltage, UVLO Protection;
Power Good Output Signal; Compact Solution
No R
Adaptive Zero Voltage Switching, High Output Power Levels (Up to
Kilowatts)
Current Mode or Voltage Mode Push-Pull Controllers
Four Switch, 4V ≤ V
High Effi ciency, Four Switch, 2.7V ≤ V
No R
No R
Current Mode Control, V
Programmable Time Out, Reverse Inductor Current Sense
Wide Operating V
Adjustable Gate Drive from 5V to 8V, 5V ≤ V
5A Peak Output Current, 6V to 9.5V Gate Drive Supply, 38V Max Input
Supply
V
12V
BIAS
SENSE
SENSE
SENSE
1
2
4
™ , Synchronizable Voltage Mode Control
, Synchronizable Tracking, Power Good Signal
, On-Board 1Ω Gate Drivers, Synchronizable
TINP
BINP
BG
1μF
16V
LTC4444
V
GND
IN
V
12V
BIAS
CC
3
9
IN
Range: Up to 80V DC, 100V Transient
BOOST
≤ 36V, 0.8V ≤ V
TG
TS
D1
IN
SENSE
SENSE
Up to 60V, Low I
6
7
8
+
–
0.22μF
16V
10Ω
10Ω
TG1
L1 8μH
D5
IN
© LINEAR TECHNOLOGY CORPORATION 2007
≤ 13.2V
OUT
IN
0.005Ω
1W
4444 TA03
≤ 10V, 2.7V ≤ V
≤ 30V, High Effi ciency
D3
Q
www.DataSheet4U.com
IN
≤ 28V
LT 1107 • PRINTED IN USA
22μF
16V
×3
SW1
OUT
2.2μF
100V
×5
+
V
OS
≤ 10V
+
+
10Ω
C1
330μF
×2
100μF
100V
×2
V
OUT
V
IN
4444f