LTC3900ES8#PBF Linear Technology, LTC3900ES8#PBF Datasheet - Page 20

• Manufacturer Part Number: LTC3900ES8#PBF
• Description: IC DRIVER RECT SYNC CONV 8SOIC
• Manufacturer: Linear Technology

Specifications of LTC3900ES8#PBF

• Configuration: High-Side
• Input Type: Inverting and Non-Inverting
• Delay Time: 60ns
• Current - Peak: 2A
• Number Of Configurations: 2
• Number Of Outputs: 2
• Voltage - Supply: 4.5 V ~ 11 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• High Side Voltage - Max (bootstrap): -

LTC3900
TYPICAL APPLICATION
20
RELATED PARTS
PART NUMBER DESCRIPTION
LTC1693
LT1950
LT1952/
LT1952-1
LT3781
LTC3803/
LTC3803-3
LTC3901
LT4430
0.47μF
0.1μF
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
115k
High Speed Single/Dual N-Channel MOSFET Drivers CMOS Compatible Input, V
Single Switch Forward, Boost, Flyback and SEPIC
Controller
Single Switch Synchronous Forward Controller
Dual Transistor Synchronous Forward Controller
Constant Frequency Flyback Controllers
Secondary-Side Synchronous Driver for Push-Pull
and Full-Bridge Converter
Secondary-Side Optocoupler Driver
59k
13.2k
27k
10k
●
370k
FAX: [phone]
7
3
9
5
6
1
2
36V to 72V Input to 12V at 20A “No Optocoupler” Synchronous “Bus Converter”
SD_V
R
BLANK
SS_MAXDC
V
COMP
FB = 1.23V
R
OSC
LTC3900-Based Synchronous “Bus Converter” Effi ciency vs Load Current
= 2.5V
36V TO 72V
SEC
LT1952
V
IN
DELAY
I
PGND
SENSE
SOUT
●
GND
OUT
V
47k
82k
OC
www.linear.com
IN
14
15
8
13
12
11
10
16
V
96.0
95.5
95.0
94.5
94.0
93.5
93.0
U1
18V
4
BAT
760
470Ω
6
39k
BCX55
12V
V
8
U1
LOAD CURRENT (A)
2.2μF , 100V
10
EFFICIENCY
1μF
COMMENTS
3V ≤ V
100mV Sense Threshold, 16-Pin SSOP
Ideal for 20W to 500W Forward Converters in Telecom Datacom and
Industrial Applications
Synchronizable Operating Frequency
Adjustable Slope Compensation, Internal Soft-Start, 200kHz/300kHz
Similar Function to LTC3900, Used in Full-Bridge and Push-Pull Converter
Optocoupler Driver with Precise Reference Voltage
PH21NQ15
220pF
BAS516
0.1μF
POWER LOSS
12
9mΩ
×2
IN
×2
14
PA0815.002
≤ 25V, 20W to 500W, Programmable Slope Compensation, Low
•
•
16
V
V
IN
OUT
•
= 48V
1nF
18
Q4470-B
= 12V
3900 TA07b
1μF
• •
20
BIAS
8V
16
12
8
4
Si7370
×2
CC
560Ω
5
6
4
8
Range: 4.5V to 12V
FG
GND
V
SYNC
CC
LTC3900
PH4840
L1: PULSE PA1494.242
ALL CAPACITORS ARE TDK, X5R CERAMIC
TIMER
CS
CS
×2
CG
+
–
15k
R
© LINEAR TECHNOLOGY CORPORATION 2003
3
1
2
7
T
BIAS
8V
1nF
C
2.4μH
T
L1
10k
10k
10k
LT 1008 REV A • PRINTED IN USA
3900 TA07a
C
33μF , 16V
X5R, TDK
×3
V
12V, ±10%,
20A MAX
OUT
OUT
3900fa