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参数资料
| 型号： | DS1830B |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/7页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCER RESET PB 2.5V 8-DIP |
| 标准包装： | 1 |
| 类型： | 序列发生器 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 高有效/低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 2.5V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
D1830/A
OPERATION — PUSHBUTTON RESET
The DS1830 provides a pushbutton switch for manual reset control. When any of the DS1830/A resets
are not active (low) a reset cycle can be initiated by a pushbutton reset. The pushbutton reset is generated
by pulling the PBRST pin low for at least 1ms. When the push- button is held low all resets are forced
active. The reset will remain active until the pushbutton input is released and then will start a sequenced
time-out based on the condition of the TD input. The Pushbutton input is pulled high through an internal
40k W pull-up resistor and debounced via internal circuitry. See Figure 2 for an application example and
Figure 3 for the timing diagram.
PUSHBUTTON RESET Figure 2
TIMING DIAGRAM — PUSHBUTTON RESET Figure 3
OPERATION — TIME DELAY SELECT
The DS1830 provides an input to select three time delay characteristics for the reset outputs. The TD
input has 3 states high (V CC ), low (ground) and no connect (N.C.). Table 2 details the minimum timing
based on the state of the TD input. If the TD input is connected to ground; RST1 will have a minimum
time delay of 10 ms after V CC is in tolerance. If the TD input is floated; RST1 will have a minimum time
delay of 20 ms after V CC is in tolerance. If the TD input is connected to V CC , RST1 will have a minimum
time delay of 50 ms after V CC is in tolerance. An oscillator and clock chain generate the reset timing with
e ach time d elay based on the same device oscillator. The time delay for RST2 will be 5 times as long as
RST1 and RST3 will be 10 times the duration of RST1 .
TD CONTROL MINIMUM RESET TIMING Table 2
TD
TD = GND
TD = N.C.
TD = V CC
T RST1
10ms
20ms
50ms
T RST2
50ms
100ms
250ms
T RST3
100ms
200ms
500ms
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相关代理商/技术参数 |
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| DS1830BS | 功能描述:IC SEQUENCER RESET PB 2.5V 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:推挽式，图腾柱 复位:低有效 复位超时:最小 145 ms 电压 - 阀值:2.64V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商设备封装:16-TQFN-EP（4x4） 包装:带卷 (TR) |
| DS1830BS/T&R | 制造商:Maxim Integrated Products 功能描述:IC SEQUENCER RESET PB 2.5V 8SOIC |
| DS1830BS/T&R | 功能描述:IC SEQUENCER RESET PB 2.5V 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:推挽式，图腾柱 复位:低有效 复位超时:最小 145 ms 电压 - 阀值:2.64V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商设备封装:16-TQFN-EP（4x4） 包装:带卷 (TR) |
| DS1830BU | 功能描述:IC SEQUENCER RESET PB 2.5V 8USOP RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:推挽式，图腾柱 复位:低有效 复位超时:最小 145 ms 电压 - 阀值:2.64V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商设备封装:16-TQFN-EP（4x4） 包装:带卷 (TR) |
| DS1830BU/T&R | 制造商:Maxim Integrated Products 功能描述:IC SEQUENCER RESET PB 2.5V 8USOP |
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