NJU2103AM-TE1 - 3.8V System Reset IC | Nisshinbo
料号： NJU2103AM-TE1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.3013 | $0.30 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
NJU2103AM-TE1 概述
A voltage supervisor, also called a reset controller or supply-voltage detector, belongs to the power-management IC hierarchy. It compares one or more supply rails with internal or external thresholds and controls a reset or enable signal when a rail crosses the specified condition. Unlike a general-purpose comparator, a supervisor is designed for simple threshold monitoring, defined output behavior, and reliable system-startup coordination.
The NJU2103A family provides three voltage monitors, according to the manufacturer product page. This multi-monitor architecture can supervise several related rails in one compact device and reduce the component count compared with separate single-channel supervisors. The -TE1 ordering code denotes the supplied package and tape-and-reel presentation, while the AM portion identifies the monitored threshold variant. Exact threshold tolerance and timing values should be confirmed in the manufacturer datasheet before release.
The open-drain or open-collector reset architecture gives the designer control over the output polarity, pull-up voltage, and reset-release behavior. A pull-up resistor can connect the output to the logic supply used by the host controller. The output can therefore participate in wired-reset arrangements without imposing the monitor supply voltage directly on the receiving logic rail. Delay and debounce behavior must be selected against the host device's minimum reset pulse requirement.
Typical uses include microcontroller reset circuits, industrial controllers, embedded systems, consumer equipment, and multi-rail power supervision. The compact DMP-8 package supports surface-mount assembly and fits control boards where space is constrained. Its principal design trade-off is monitoring capability versus the need to verify exact pin functions, threshold accuracy, and timing in the NJU2103A datasheet before schematic sign-off.
Place the supervisor close to the monitored supply entry point and keep the reset trace away from high-current switching nodes. Confirm pull-up voltage compatibility, unused-monitor termination, exposed-pad grounding where applicable, and all absolute maximum ratings. This page combines verified distributor data, manufacturer family information, replacement guidance, and practical integration notes rather than repeating raw catalog parameters alone.
直接替换替代料： NJU2103AM-TE1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
NJM8202RB1
✅ 直接替换✓ 有现货
$0.89 / 个
查看数据手册 →NJM2882F05-TE1
✅ 直接替换✓ 有现货
$0.18 / 个
查看数据手册 →NJU2103AM-TE1 规格参数
| Product Type | System reset IC / power-supply voltage supervisor |
| Number of Monitors | 3 monitors |
| Nominal Detection Threshold | 3.8 V |
| Maximum Supply Voltage | 20 V |
| Operating Current | 280 uA |
| Reset-Level Parameter | -0.3 V |
| Power Dissipation | 910 mW |
| Reset Output | Open drain or open collector |
| Logic Polarity | Active-low monitor/reset signal |
| 封装 | 8-DMP surface-mount package |
| Terminal Count | 8 terminals |
| 安装类型 | Surface mount |
| Shipping Configuration | Tape and reel, -TE1 ordering code |
NJU2103AM-TE1 8-dmp surface-mount package 引脚配置指南
NJU2103AM-TE1（8-dmp surface-mount package 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： NJU2103AM-TE1.
请参阅 数据手册 以查看完整引脚配置。
典型应用
NJU2103AM-TE1 适用于 6 应用s: Microcontroller Power-Fail Reset, Industrial Control Supply Monitoring, Multi-Rail Embedded System, Consumer Equipment Brownout Recovery, Data Acquisition and Sensor Control, Motor and Power-Control Interface.
Microcontroller Power-Fail Reset
The NJU2103AM-TE1 fits a microcontroller supply-reset circuit because its three-monitor architecture can supervise more than one rail while its active-low open-drain output provides a flexible host reset interface. Connect the reset node to the controller input through a pull-up and use the device to request a restart when a monitored voltage becomes abnormal. Verify threshold tolerance and minimum reset pulse duration in the manufacturer datasheet, then confirm compatibility with the controller's asynchronous reset requirements.
推荐
Industrial Control Supply Monitoring
For industrial control equipment, the NJU2103AM-TE1 can supervise three supply conditions in a compact 8-DMP footprint and help prevent processor operation outside intended power conditions. The open-drain output allows the reset node to be pulled up to the controller's logic voltage rather than necessarily to the monitor supply. Designers should confirm thresholds for every rail, unused-channel handling, noise immunity, and the device's operating-temperature grade before industrial release.
推荐
Multi-Rail Embedded System
The NJU2103AM-TE1 is useful in a multi-rail embedded system where several supply conditions must be observed with one supervisor. Its three-monitor arrangement can reduce the footprint and assembly count associated with separate reset devices. However, the verified catalog material does not disclose whether all thresholds and delays are independently programmable. Use the NJU2103A pin description and truth table to define whether monitors are combined, individually routed, or configured by external components.
推荐
Consumer Equipment Brownout Recovery
The NJU2103AM-TE1 can support brownout recovery in consumer electronics by asserting a reset when a monitored rail drops below its defined condition. This helps avoid processor states caused by insufficient or unstable supply voltage. Use a pull-up matched to the receiving logic rail and keep the trace compact. Before implementation, verify reset release timing to prevent repeated cycling and confirm that the 3.8 V nominal threshold is appropriate for the system rail being monitored.
推荐
Data Acquisition and Sensor Control
The NJU2103AM-TE1 can supervise a data-acquisition controller where analog or digital measurement accuracy depends on stable supply rails. The supervisor's three-monitor architecture offers a compact way to monitor multiple system conditions, while the active-low open-drain output allows shared reset wiring to the controller. Validate thresholds, supply-current behavior, and reset timing alongside the sensor front end. Avoid placing the reset trace beside high-current loads or switching-regulator inductors.
推荐
Motor and Power-Control Interface
The NJU2103AM-TE1 can provide a hardware safety interlock in a motor-control or power-conversion controller by resetting its logic section when a monitored supply falls outside its expected range. The 8-DMP package is compact for controller boards, and the open-drain output can be shared with other reset-capable logic when electrical limits permit. Keep the supervisor supply and reset trace away from switching nodes, and confirm the exact reset polarity and delay against the gate-driver or MCU system requirements.
推荐
推荐产品汇总
工程参考数据： NJU2103AM-TE1 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | NJM8202RB1 | NJM2882F05-TE1 |
|---|---|---|---|
| Package | 8-DMP | DMP-8; same-package status requires official pinout verification | DMP-8; same-package status requires official pinout verification |
| Brand | Nisshinbo Micro Devices Inc. | New Japan Radio Co., Ltd. | New Japan Radio Co., Ltd. |
关键差异点
- Three-monitor reset architecture （对比 NJM2882F05-TE1)
- Nominal 3.8 V monitoring threshold （对比 NJM2882F05-TE1)
- Open-drain reset interface （对比 NJM8202RB1)
设计说明
The verified distributor entry specifies a 20 V maximum supply rating and 280 uA operating current. Treat 20 V as an absolute-limit reference, not as a design target. Confirm the complete operating-voltage range, quiescent-current conditions, threshold tolerances, and absolute maximum ratings in the NJU2103A manufacturer datasheet before connecting a rail. In multi-rail systems, verify that every monitored input remains within its permitted range during startup and shutdown.
Place the NJU2103AM-TE1 close to the supply being monitored and route sensing traces away from inductors, switching nodes, motor outputs, and high-current return paths. Keep the reset trace short and use a clean ground reference, especially when the open-drain pull-up connects to a logic rail. Follow the manufacturer's recommended land pattern and confirm whether the DMP thermal or exposed pad requires a specific connection; the supplied snippets do not expose that pin detail.
Do not assume that the NJU2103A family's three monitors provide three independently adjustable rails or three independent reset outputs. The verified material confirms three monitors but does not publish their individual thresholds, pin assignments, or truth table. Before schematic release, download the official NJU2103A datasheet and verify pinout, threshold polarity, reset timing, unused-monitor behavior, pull-up voltage, and the minimum reset pulse required by the host controller.
合规信息
The supplied verified web results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. A Partstack search snippet labels the temperature grade as automotive, but it does not provide formal AEC-Q100 qualification evidence; this was not treated as proof.
