- 您现在的位置：买卖IC网 > PDF目录1832 > LTC3806EDE#TRPBF (Linear Technology)IC REG CTRLR FLYBACK PWM 12-DFN PDF资料下载
参数资料
| 型号： | LTC3806EDE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 17/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBACK PWM 12-DFN |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 290kHz |
| 占空比： | 94% |
| 电源电压： | 10 V ~ 75 V |
| 降压： | 无 |
| 升压： | 无 |
| 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： | 12-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
LTC3806
APPLICATIO S I FOR ATIO
exceeds the maximum rating of the device, either choose
a higher voltage device or specify an avalanche-rated
power MOSFET.
6. Place the small-signal components away from high
frequency switching nodes. (All of the small-signal
components on one side of the IC and all of the power
components on the other.) This allows the use of a
pseudo-Kelvin connection for the signal ground, where
high di/dt gate driver currents flow out of the IC ground
pin in one direction (to the bottom plate of the INTV CC
decoupling capacitor) and small-signal currents flow in
the other direction.
7. Minimize the capacitance between the SENSE pin trace
and any high frequency switching nodes. The LTC3806
contains an internal leading edge blanking time of
approximately 180ns, which should be adequate for
most applications.
8. For optimum load regulation and true remote sensing,
the top of the output resistor divider should connect
independently to the top of the the output capacitor
(Kelvin connection), staying away from any high dV/dt
traces. Place the divider resistors near the LTC3806 in
order to keep the high impedance FB node short.
9. For applications with multiple switching power con-
verters which connect to the same input supply, make
sure that the input filter capacitor for the LTC3806 is not
shared with other converters. AC input current from
another converter could cause substantial input voltage
ripple and this could interfere with the operation of the
LTC3806. A few inches of PC trace or wire (L ? 100nH)
between the C IN of the LTC3806 and the actual source
V IN should be sufficient to prevent current sharing
problems.
R2
V IN
25V TO 60V
R1
22 Ω
D1
1N4148
T1
XFMR_EFD20
7
D2
C1 B260A 10 Ω
1nF
C2
10 μ F
12V
400mA
C5
2.2 μ F
R3
TBD
C7
220pF
12
11
1
6
10
8
C6
100 μ F
5V
1.5A
2
9
R5
232k
R4
47k
Q4
Si4490DY
Q1
Si7806DN
3
5
4
Q5
Si7806DN
Q2
Si7806DN
+
3.3V
2A
C8
470 μ F
POSCAP
R9
R10
12.4k
C16
100pF 33k C14
1nF
1
2
3
4
5
6
LTC3806
RUN SENSE
I TH NC
FB SS
NC G1
V IN G2
INTV CC GND
12
11
10
9
8
7
C15
220nF
R14
0.056 Ω
C25
100nF
R18
100k
D8
10V
C26
100 μ F
–5V
1.5A
C18
100 μ F
C19
220nF
D4
20V
C20
4.7 μ F
R16
R13
76.8k 42.3k
3806 F07
R17
12.4k
Figure 7. Synchronous Flyback
3806fb
17
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3808EDE#TRPBF | IC REG CTRLR BUCK PWM CM 14-DFN |
| LTC3809EDD-1#PBF | IC REG CTRLR BUCK PWM CM 10-DFN |
| LTC3809EDD#PBF | IC REG CTRLR BUCK PWM CM 10-DFN |
| LTC3810EG#PBF | IC REG CTRLR BUCK PWM CM 28-SSOP |
| LTC3810EUH-5#PBF | IC REG CTRLR BUCK PWM CM 32-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3808EDE | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Sync Step Down 2.75V to 9.8V Input 14-Pin DFN EP |
| LTC3808EDE#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 14-DFN 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:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 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:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC3808EDE#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 14-DFN 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:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 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:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC3808EGN#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP 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:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 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:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC3808EGN#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP 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:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 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:24-WQFN 裸露焊盘 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。