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参数资料
| 型号： | LV51133T |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | 0.150 INCH, MSOP-8 |
| 文件页数： | 8/9页 |
| 文件大小： | 149K |
| 代理商： | LV51133T |
LB11967V
Control Timing Chart
4.55V
1.65V
f=25kHz (CP=100pF)
0V
12V
VCC
CPWM
FG
VTH voltage
RMI voltage
ON-Duty-small
PMW-IN disconnected
Full speed
High speed
Low speed
PWM control variable speed
Rotation set to
minimum speed
(Stop mode)
ON-Duty-large
(1) Minimum speed setting (stop) mode
PWM-IN input is filtered to generate the VTH voltage. At low speed, the fan rotates with the minimum speed set with
RMI pin during low speed. If the minimum speed is not set (RMI = 6VREG), the fan stops.
(2) Low
High speed mode
PWM control is made through comparison of oscillation and VTH voltages with CPWM changing between
1.6V
4.6V.
When the VTH voltage is lower, the IC switches to drive mode. When the VTH voltage is higher, the p-channel FET
is turned off and coil current is regenerated through the low-side FET. Therefore, as the VTH voltage lowers, the
output ON-DUTY increases, increasing the coil current and raising the motor speed.
The rotation speed is fed back by the FG output.
(3) Full speed mode
The full-speed mode becomes effective with the VTH voltage of 1.65V or less. (VTH must be equal to GND when the
speed control is not to be made.)
(4) PWM-IN input disconnection mode
When the PWM-IN input pin is disconnected, VTH becomes 1.65V or les and the output enables full drive at 100%.
The fan runs at full speed. (Refer to the sample application circuit.)
No.8362-8/9
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相关代理商/技术参数 |
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| LV51133T-TLM-E | 功能描述:电池管理 BATTERY PROTECTION IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| LV51134T | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:CMOS IC 2-Cell Lithium-Ion Secondary Battery Protection IC |
| LV51134T_11 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:2-Cell Lithium-Ion Secondary Battery Protection IC |
| LV51134T-TLM-E | 功能描述:电池管理 BATTERY PROTECTION IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| LV51135T | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:CMOS IC 2-Cell Lithium-Ion Secondary Battery Protection IC |
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