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参数资料
| 型号： | DS3988T+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 17/23页 |
| 文件大小： | 0K |
| 描述： | IC CCFL CNTRLR 8CH 48TQFP |
| 标准包装： | 2,000 |
| 类型： | CCFL 控制器 |
| 频率： | 40 ~ 80 kHz |
| 电流 - 电源： | 15mA |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 带卷 (TR) |
8-Channel Cold-Cathode
Fluorescent Lamp Controller
Table 3. Control Register 1 (CR1)
BIT
0
NAME
LOC
FUNCTION
Lamp Overcurrent.
0 = Lamp overcurrent detection disabled.
1 = Lamp overcurrent detection enabled.
Note: Gate duty cycle changes during soft-start larger than 5% can cause false LOC fault.
POSC Select. See POSCR0 and POSCR1 bits in Control Register 2 to select the oscillator range.
1
POSCS 0 = Connect POSC to ground with a resistor to set the dimming frequency.
1 = Connect POSC to an external 22.5Hz to 440Hz dimming clock to set the dimming frequency.
Lamp Frequency Source Select.
2
3
4
5
6
7
LFSS
DPSS
RGSO
ARD
FRS
DPD
0 = Lamp frequency source mode. The lamp frequency is generated internally and sourced at the LSYNC
output for use by lamp frequency receivers.
1 = Lamp frequency receiver mode. The lamp frequency must be provided at the LSYNC input.
DPWM Signal Source Select.
0 = DPWM source mode. DPWM signal is generated internally, and can be output at PSYNC pin (see RGSO bit).
1 = DPWM receiver mode. DPWM signal is generated externally and supplied at the PSYNC input.
Ramp Generator Source Option.
0 = Sources DPWM at the PSYNC output.
1 = Sources the internal ramp generator at PSYNC output.
Autoretry Disable.
0 = Autoretry function enabled.
1 = Autoretry function disabled.
Fault Response Select.
0 = Disable only the malfunctioning channel.
1 = Disable all channels upon fault detection at any channel.
DPWM Disable.
0 = DPWM function enabled.
1 = DPWM function disabled. DPWM set to 100% duty cycle.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3991 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost CCFL Controller |
| DS3991V | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost CCFL Controller |
| DS3991VC | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost CCFL Controller |
| DS3991VR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost CCFL Controller |
| DS3991VRC | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost CCFL Controller |
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