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参数资料
| 型号： | LTC3705EGN#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR OCP 16SSOP |
| 标准包装： | 2,500 |
| 输出隔离： | 隔离 |
| 输入电压： | 18 V ~ 80 V |
| 输出电压： | 11V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 带卷 (TR) |
LTC3705
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V CC = V BOOST = 12V, GND = PGND = V TS = 0V, T A = 25 ° C, unless
otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I HUVLO
V UVLOOP
Hysteresis Current
Voltage Feedforward Operating Range
V UVLO = 1V
Primary-Side Control
●
4.2
V UVLOF(MIN)
4.9
5.6
3.75
μ A
V
Gate Drivers (TG and BG)
R OS
V OH
I PU
t r
t f
Output Pull-Down Resistance
High Output Voltage
Peak Pull-Up Current
Output Rise Time
Output Fall Time
I OUT = 100mA
I OUT = –100mA
10% to 90%, C OUT = 4.7nF
10% to 90%, C OUT = 4.7nF
1.9
11
1.7
40
70
?
V
A
ns
ns
Rectifier
I RECT
Maximum Rectifier DC Output Current
25
mA
Oscillator
f OSC(P)
? f RFS(P)
f OSC(S)
Oscillator Frequency
Oscillator Resistor Set Accuracy
Oscillator Frequency
Primary-Side Control, R FS(P) = 100k ?
Primary-Side Control, R FS(P) = 25k ?
Primary-Side Control, R FS(P) = 300k ?
Primary-Side Control
25k < R FSET < 300k
Secondary-Side Control (During Start-Up),
R FS(S) = 100k ?
200
700
70
± 15
300
kHz
kHz
kHz
%
kHz
Soft-Start/Fault (SSFLT)
I SS(C)
Soft-Start Charge Current
Primary-Side Control, V SSFLT = 2V
Secondary-Side Control, V UVLO = 1.3V,
V SSFLT = 2V
Secondary-Side Control, V UVLO = 3.75V,
–5.2
–4
–1.6
μ A
μ A
μ A
V SSFLT = 2V
V LRTO
Linear Regulator Time Out-Threshold
3.9
V
V FLTH
I SS(D)
Fault Output High
Soft-Start Discharge Current
V CC = 8V
Timing Out After Fault, V SSFLT = 2V
6.7
1
V
μ A
Current Sense Input (I S )
V IS(MAX)
Overcurrent Threshold
300
mV
Volt Second Limit (V SLMT )
V VSL(MAX)
I VSLMT(MAX)
Volt-Second Limit Threshold
Maximum Volt-Second Limit Resistor Current
1.26
0.25
V
mA
Optoisolator Bias Current
V OPTO
I OPTO
Open Circuit Optoisolator Voltage
Optoisolator Bias Current
Primary-Side Control I FB = 0V
Primary-Side Control V FB = 2.5V
Primary-Side Control V FB = 0V
3.3
0.5
1.6
V
mA
mA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Operating junction temperature T J (in ° C) is calculated from the
ambient temperature T A and the average power dissipation PD (in watts)
by the formula: T J = T A + θ JA ? PD. Refer to the Applications Information
Note 3: I CC is the sum of current into NDRV and V CC .
Note 4: The LTC3705EGN is guaranteed to meet performance
specifications from 0 ° C to 85 ° C. Specifications over the –40 ° C to 85 ° C
operating temperature range are assured by design, characterization and
correlation with statistical process controls. The LTC3705IGN is
guaranteed and tested over the – 40 ° C to 85 ° C operating temperature
range.
section for details.
3705fb
3
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相关代理商/技术参数 |
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| LTC3705IGN | 制造商:Linear Technology 功能描述:Forward Controller and Gate Driver 16-Pin SSOP N |
| LTC3705IGN#PBF | 功能描述:IC CTRLR OCP 16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - AC-DC 转换器，离线开关 系列:- 标准包装:3,000 系列:- 输出隔离:隔离 频率范围:61kHz ~ 71kHz 输入电压:9.4 V ~ 28 V 输出电压:12V 功率（瓦特）:- 工作温度:-40°C ~ 125°C 封装/外壳:SC-74，SOT-457 供应商设备封装:6-TSOP 包装:带卷 (TR) |
| LTC3705IGN#TRPBF | 功能描述:IC CTRLR OCP 16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - AC-DC 转换器，离线开关 系列:- 标准包装:3,000 系列:- 输出隔离:隔离 频率范围:61kHz ~ 71kHz 输入电压:9.4 V ~ 28 V 输出电压:12V 功率（瓦特）:- 工作温度:-40°C ~ 125°C 封装/外壳:SC-74，SOT-457 供应商设备封装:6-TSOP 包装:带卷 (TR) |
| LTC3706EGN#PBF | 功能描述:IC SECONDARY SIDE CTRLR 24SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:PolyPhase® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| LTC3706EGN#TRPBF | 功能描述:IC SECONDARY SIDE CTRLR 24SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:PolyPhase® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
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