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参数资料
| 型号： | LT3439EFE#TR |
| 厂商： | Linear Technology |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC REG PSH-PLL CTRLR ISO 16TSSOP |
| 标准包装： | 2,500 |
| 类型： | 推挽式控制器，隔离式 |
| 输出数： | 1 |
| 输入电压： | 2.8 V ~ 17.5 V |
| 频率 - 开关： | 20kHz ~ 250kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-TSSOP-EP |
LT3439
TYPICAL APPLICATIO
Low Noise 5V to ± 12V Push-Pull DC Transformer
D1
OPTIONAL
L1
BYP
LT1761-BYP
C7
0.01 μ F
V OUT
IN OUT
12V
+
+
V IN
5V
C1
4.7 μ F
11
5
6
7
C T R T
820pF 16.9k
13
V IN
SHDN COLA
LT3439
SYNC COLB
C T
R T R SL
GND PGND
10 1, 16
3
14
4
?
?
R SI
16.9k
T1
D2
?
?
D3
D4
C11
2.2nF
+
R8
10k
C3
47 μ F
C5
47 μ F
C4
47 μ F
OPTIONAL
L2
C6
47 μ F
GND ADJ
R2
49.9k
BYP
LT1964-BYP
IN OUT
GND ADJ
R1
442k
C8
0.01 μ F
R3
442k
80mA
C9
39 μ F
V OUT
–12V
C10 80mA
39 μ F
C1: TAIYO YUDEN JMK212BJ475KG
C3-C6: SANYO OS-CON 20SVQP47M
C9, C10: SANYO OS-CON 16SVQPA39M
C11: AVX 1206AC222MA11A
1kV
R4
49.9k
3439 TA02
D1-D4: MMBD914
L1, L2: COILCRAFT DT1608C-333
T1: COILTRONICS CTX02-16030
PACKAGE DESCRIPTIO
FE Package
16-Lead Plastic TSSOP (4.4mm)
(Reference LTC DWG # 05-08-1663)
Exposed Pad Variation BA
4.90 – 5.10*
2.74
(.108)
(.193 – .201)
2.74
(.108)
16 1514 13 12 11 10
9
6.60 ± 0.10
4.50 ± 0.10
2.74
(.108)
SEE NOTE 4
2.74
6.40
0.45 ± 0.05
1.05 ± 0.10
0.65 BSC
RECOMMENDED SOLDER PAD LAYOUT
4.30 – 4.50*
(.169 – .177)
0 ° – 8 °
1 2 3 4 5 6 7 8
(.108) BSC
1.10
(.0433)
MAX
0.09 – 0.20
(.0036 – .0079)
NOTE:
0.45 – 0.75
(.018 – .030)
0.65
(.0256)
BSC
0.195 – 0.30
(.0077 – .0118)
0.05 – 0.15
(.002 – .006)
FE16 (BA) TSSOP 0203
1. CONTROLLING DIMENSION: MILLIMETERS
4. RECOMMENDED MINIMUM PCB METAL SIZE
2. DIMENSIONS ARE IN
MILLIMETERS
(INCHES)
FOR EXPOSED PAD ATTACHMENT
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
3. DRAWING NOT TO SCALE
SHALL NOT EXCEED 0.150mm (.006") PER SIDE
sn3439 3439fs
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
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