- 您现在的位置：买卖IC网 > PDF目录15502 > LT3710EFE (Linear Technology)IC REG CTRLR BUCK PWM 16-TSSOP PDF资料下载
参数资料
| 型号： | LT3710EFE |
| 厂商： | Linear Technology |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 16-TSSOP |
| 标准包装： | 95 |
| PWM 型： | 电流/电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 340kHz |
| 占空比： | 90% |
| 电源电压： | 8 V ~ 24 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 管件 |
| 产品目录页面： | 1332 (CN2011-ZH PDF) |
LT3710
APPLICATIO S I FOR ATIO
forward converter with synchronous rectification. The
primary side controller uses an LT3781, a current mode
2-transistor forward controller with built-in MOSFET driv-
ers. On the secondary side, an LTC1698 is used to provide
the voltage feedback for the 3.3V output, as well as the gate
drive for the synchronous MOSFETs. The error amplifier
output is fed into the optocoupler and then relayed to
LT3781 on the primary side to complete the 3.3V regula-
tion. The 1.8V output is generated by the LT3710 circuit.
A planar transformer PA0191 built by Pulse Engineering is
employed as the power transformer in this design. This
transformer is constructed on a PQ20 core with a nine turn
primary winding, two turn secondary winding and seven
turn auxiliary winding for the LT3781 bias supply. Because
4.7 μ F
the maximum secondary voltage V SP is about 16V, 30V
MOSFETs are chosen with the consideration that the
secondary voltage overshoot is typically 20% to 30% of
V SP . In this particular design, Si7440DP is selected due to
its low R SD(ON) , 30V V DSS rating and its compact and
thermally enhanced PowerPak SO-8 package.
The switching frequency of the circuit is about 230kHz.
1500V input to output isolation is provided. Additional
features of this design include primary side on/off control,
± 5% secondary side trimming on the 3.3V output, input
overvoltage protection and undervoltage lockout. The
complete design will mount within a standard half brick PC
board with about half inch height.
0.1 μ F
16V
CL +
SEC
V CCS
1 μ F
10pF
10k
0.01 μ F
C37 680pF
5
7
13
4
14
6
SYNC
SS
V CC
CSET
PGND
ILCOMP
1
BOOST
LT3710
16V
16
GBIAS
2
TGATE
3
SW
15
BGATE
9
BGS
11
CMDSH-3
10 ?
CMDSH-3
Si7440DP
Si7440DP
1.8 μ H
SUMIDA
CEP125-IR8
B340A
0.006 ?
1%
+
680 μ F
4V
POSCAP
+
V OUT2
1.8V/10A
680 μ F
4V
POSCAP
180pF
10k
17
PGND
VA OUT
10
0.033 μ F
3.3k
CL –
V FB
8
12
0.01 μ F
3.01k
1%
4700pF
220 ?
330pF
2.32k
1%
3710 F03b
Figure 3b. 36V to 72V DC to 3.3V/10A and 1.8V/10A Dual Output Isolated Power Supply (Part 2 of 2, See Previous Page)
3710f
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
相关PDF资料 |
PDF描述 |
|---|---|
| SPD62-183M | INDUCTOR PWR SHIELDED 18.0UH SMD |
| LTC3869IUFD#PBF | IC REG CTRLR BUCK PWM CM 28-QFN |
| LT1725CGN#PBF | IC REG CTRLR FLYBK ISO CM 16SSOP |
| LTC3830ES#PBF | IC REG CTRLR BUCK PWM VM 16-SOIC |
| SPD62-153M | INDUCTOR PWR SHIELDED 15.0UH SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3710EFE#PBF | 功能描述:IC REG CTRLR BUCK PWM 16-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,000 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:1MHz 占空比:50% 电源电压:9 V ~ 10 V 降压:无 升压:是 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 包装:带卷 (TR) |
| LT3710EFE#TR | 功能描述:IC REG CTRLR BUCK PWM 16-TSSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LT3710EFE#TRPBF | 功能描述:IC REG CTRLR BUCK PWM 16-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LT371LF | 制造商:EDSYN 功能描述: |
| LT3724 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage, Current Mode Switching Regulator Controller |
发布紧急采购，3分钟左右您将得到回复。