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| 型号： | DS3881E+C |
| 厂商： | Maxim Integrated |
| 文件页数： | 21/28页 |
| 文件大小： | 0K |
| 描述： | IC CCFL CONTROL 24TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 62 |
| 类型： | CCFL 控制器 |
| 频率： | 40 ~ 100 kHz |
| 电流 - 电源： | 12mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 管件 |
| 其它名称： | DS3881E+ DS3881E+-ND |
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Single-Channel Automotive CCFL Controller
Table 6. Control Register 2 (CR2) [Shadowed-EEPROM, F5h]
BIT
R/W
DEFAULT
NAME
FUNCTION
User Memory Write Protect
0
R/W
0
UMWP
0 = Write access blocked.
1 = Write access permitted.
DPWM Oscillator Range Select. When using an external source for the dimming clock,
1
R/W
0
POSCR0
these bits must be set to match the external oscillator’s frequency. When using a
resistor to set the dimming frequency, these bits plus the external resistor control the
frequency.
POSCR1
POSCR0
DIMMING CLOCK (DPWM)
FREQUENCY RANGE (Hz)
k (k Ω ? kHz)
2
R/W
0
POSCR1
0
0
0
1
22.5 to 55.0
45 to 110
1
2
1
1
0
1
90 to 220
180 to 440
4
8
Lamp Sample Rate Select. Determines the feedback sample rate of the LCM inputs.
3
R/W
1
LSR0
LSR1
LSR0
SELECTED LAMP SAMPLE
RATE
EXAMPLE SAMPLE RATE
IF LAMP FREQUENCY IS
50kHz
0
0
0
1
4 Lamp Frequency Cycles
8 Lamp Frequency Cycles
12,500Hz
6250Hz
4
R/W
0
LSR1
1
0
16 Lamp Frequency Cycles
3125Hz
1
1
32 Lamp Frequency Cycles
1563Hz
5
6
—
—
0
0
RSVD
RSVD
Reserved. This bit should be set to zero.
Reserved. This bit should be set to zero.
Power-Down. Logically ORed with the PDN pin. Setting this bit high resets the controller,
7
R/W
0
PDNE
clears the fault logic, and places the part in power-down mode. 0 = Normal. All circuitry is
off, except I 2 C interface.
____________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3881ER | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Channel Automotive CCFL Controller |
| DS3881ET | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Channel Automotive CCFL Controller |
| DS3882 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Channel Automotive CCFL Controller |
| DS3882_10 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Channel Automotive CCFL Controller |
| DS3882E | 制造商:Maxim Integrated Products 功能描述:CAR DUAL CCFL CONTROL TSSOP - 28 - Rail/Tube |
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