MM3513H01NRH - 1-Cell Li-Ion Cell-Balance Voltage Monitor | Mitsumi
料号： MM3513H01NRH ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.12 | $1.12 |
| 10 | $0.98 | $9.80 |
| 100 | $0.84 | $84.00 |
| 500 | $0.71 | $355.00 |
| 1,000 | $0.62 | $620.00 |
MM3513H01NRH 概述
A lithium-ion battery monitor IC (sometimes called a battery monitor, cell-balance IC, or voltage monitor) is a small analog/mixed-signal device that continuously measures the cell voltage and, when used in a multi-cell stack, equalizes the state-of-charge across cells. Cell monitors sit below the gas-gauge IC in the battery-management hierarchy (cell monitor -> battery protection -> battery management IC -> power management), and they are essential in any Li-ion system that needs to survive hundreds of charge/discharge cycles without drifting capacity between cells. The MM3513 family is one of the most widely adopted Japanese alternatives to Western cell-monitor parts in compact consumer battery packs.
The MM3513H01NRH integrates a precision voltage detector, a stable reference-voltage source, an internal oscillator, a counter/timer circuit, and the logic that drives an external cell-balancing MOSFET or resistor. Housed in the compact SOT-25A package with a -40C to +85C operating range, it is well suited for small-format battery packs where PCB area is constrained.
Internally, the high-voltage CMOS process gives the device the ability to connect directly across the cell terminal while consuming only a few microamperes in operation and sub-microampere quiescent current when the cell is in balance. Each device in the MM3513 series is composed of voltage detectors, reference voltage sources, an oscillator, a counter circuit, and logical circuits, giving designers a self-contained monitoring solution that needs only a few external components.
Typical applications include single-cell Li-ion battery packs in smartphones, wearables, Bluetooth earbuds, power banks, and small IoT devices where battery cell balancing extends usable capacity and protects the cell from over-voltage stress during charging. Industrial telemetry and backup battery modules also use the part where compact footprint and accurate per-cell voltage detection are required.
When designing with the MM3513H01NRH, route the cell sense input directly to the battery terminal with a Kelvin-style connection to avoid IR drop across the protection-FET on-resistance, and decouple the supply pin with a 100 nF ceramic capacitor placed within 2 mm of the package. The balance output should drive an external MOSFET or a power resistor sized so that the balance current does not exceed the cell manufacturer's recommended balancing rate, typically C/20 to C/10.
This page synthesizes verified distributor pricing, pin-compatible drop-in alternatives, and practical design notes for the MM3513H01NRH that are not consolidated in any single datasheet or catalog page.
直接替换替代料： MM3513H01NRH ——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：
MM3513A01NRH
✅ 直接替换📋 参考替代料（不在目录中）
MM3513B01NRH
✅ 直接替换📋 参考替代料（不在目录中）
MM3513C01NRH
✅ 直接替换📋 参考替代料（不在目录中）
R5402N101KD
✅ 直接替换📋 参考替代料（不在目录中）
R5402N102KD
✅ 直接替换📋 参考替代料（不在目录中）
MM3513H01NRH 规格参数
| Product Type | Battery / cell voltage monitor IC with cell-balancing |
| Chemistry Supported | Lithium-ion / Lithium-polymer, 1 cell |
| Manufacturer | Mitsumi Electric (Minebea Mitsumi) |
| 封装 | SOT-25A (5-pin, surface mount) |
| 安装类型 | Surface Mount |
| 工作温度范围 | -40C to +85C |
| Process Technology | High-voltage CMOS |
| Internal Blocks | Voltage detector, reference voltage source, oscillator, counter circuit, logic circuits |
| 功能 | Single-cell Li-ion voltage detection with cell-balance control |
| RoHS 状态 | Compliant |
| Number of Cells Monitored | 1 (single cell) |
| Cell Balancing | Yes (passive, external balancing element required) |
MM3513H01NRH 引脚配置
| 引脚 1 | VCC — Battery positive terminal supply input |
| 引脚 2 | OUT — Cell-balance / voltage detection output |
| 引脚 3 | GND — Ground reference |
| 引脚 4 | TEST — Test / mode pin (manufacturer-defined function) |
| 引脚 5 | NC — Not connected (per datasheet) |
典型应用
MM3513H01NRH 适用于 6 应用s: Wearable / Earbud Li-ion Battery Pack, Single-Cell Power Bank Battery Pack, IoT Sensor / Wireless Module Battery, Bluetooth Headset Charging Cradle, Industrial Backup Battery Module, Smart Pen / Stylus Li-ion Battery.
Wearable / Earbud Li-ion Battery Pack
The MM3513H01NRH's compact SOT-25A footprint and single-cell voltage-monitor function fit wearable and earbud battery packs where PCB area is measured in square millimeters. Its integrated voltage detector with built-in reference voltage source monitors the Li-ion cell terminal directly, while the cell-balance output drives an external balancing resistor to keep the cell at the correct state-of-charge during charge cycles. The -40C to +85C operating range covers skin-contact and outdoor use. Designers can place the IC adjacent to the cell tab with a 100nF ceramic bypass capacitor, keeping the Kelvin sense trace short for accurate voltage detection without IR-drop error.
推荐
Single-Cell Power Bank Battery Pack
In a 1S power-bank battery pack, the MM3513H01NRH provides the voltage-monitor and cell-balancing function that keeps the Li-ion cell within its safe operating window during fast-charge cycles. The internal oscillator and counter circuit allow the device to time the balance intervals without external microcontroller support, simplifying the BOM. Its high-voltage CMOS process tolerates the 4.2V full-charge voltage directly on the VCC pin. Place the IC near the battery protection FETs and route the cell-sense line with a Kelvin connection to avoid voltage error from protection-FET on-resistance.
推荐
IoT Sensor / Wireless Module Battery
The MM3513H01NRH is well suited for low-duty-cycle IoT sensor and wireless module batteries where the cell spends most of its life in standby and requires accurate voltage detection only during charge or periodic telemetry windows. Its high-voltage CMOS process delivers low quiescent current consumption, extending shelf life of field-deployed sensor batteries. The SOT-25A package fits inside the small footprint of an IoT coin-cell or Li-poly battery holder. Designers can use the cell-balance output to gently equalize the cell after long storage periods, recovering usable capacity that would otherwise be lost.
推荐
Bluetooth Headset Charging Cradle
Charging cradles for Bluetooth headsets need a compact voltage monitor that confirms the Li-ion cell inside the headset is healthy before allowing high-current charging. The MM3513H01NRH monitors the cell voltage and signals the cradle MCU via its logic output when the cell is within safe limits, enabling the cradle to proceed with a normal CC-CV charge profile. The -40C to +85C range handles the elevated temperatures reached during fast-charge in a sealed enclosure. Its internal counter circuit prevents false triggering from transient voltage spikes during charge-current switching.
推荐
Industrial Backup Battery Module
Industrial backup battery modules that ride on a 24V industrial bus often include a small single-cell Li-ion or Li-poly backup element for RTC and tamper-log retention during main-power loss. The MM3513H01NRH provides the cell voltage monitor and balancing function for that backup cell, ensuring the cell stays within its safe voltage window for the 5-10 year deployment life of the module. Its high-voltage CMOS process tolerates the inrush transients seen on industrial bus power cycles, and the SOT-25A package can be hand-soldered for prototype and low-volume production runs.
推荐
Smart Pen / Stylus Li-ion Battery
Active smart pens and styluses contain a small Li-ion or Li-poly cell that powers the digitizer and Bluetooth radio. The MM3513H01NRH's SOT-25A package fits inside the slim barrel of a stylus, where PCB area is at a premium, and its single-cell voltage-monitor function protects the cell from over-discharge during deep sleep cycles between writing sessions. The internal logic circuit can directly drive a low-side balancing MOSFET on the cell tab, eliminating the need for a separate balancing controller IC. Its -40C to +85C range handles the body-heat and outdoor-cold environments typical for stylus use.
推荐
推荐产品汇总
工程参考数据： MM3513H01NRH ——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 | MM3513A01NRH | MM3513B01NRH | MM3513C01NRH | R5402N101KD | R5402N102KD |
|---|---|---|---|---|---|---|
| Brand | Mitsumi | Mitsumi | Mitsumi | Mitsumi | Nisshinbo Micro Devices | Nisshinbo Micro Devices |
| Package | SOT-25A | SOT-25A - same | SOT-25A - same | SOT-25A - same | SOT-25A - same | SOT-25A - same |
| Function | 1-cell Li-ion voltage monitor with cell balancing | 1-cell Li-ion voltage monitor with cell balancing | 1-cell Li-ion voltage monitor with cell balancing | 1-cell Li-ion voltage monitor with cell balancing | 1-cell Li-ion voltage monitor with cell balancing | 1-cell Li-ion voltage monitor with cell balancing |
| Cells Supported | 1 | 1 | 1 | 1 | 1 | 1 |
| Chemistry | Li-ion / Li-poly | Li-ion / Li-poly | Li-ion / Li-poly | Li-ion / Li-poly | Li-ion / Li-poly | Li-ion / Li-poly |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C (typical) | -40C to +85C (typical) |
| Detection Threshold Variant | H01 | A01 | B01 | C01 | 101 | 102 |
| RoHS Compliant | Yes | Yes | Yes | Yes | Yes | Yes |
关键差异点
- Integrated cell-balancing with internal oscillator and counter circuit （对比 MM3513A01NRH)
- Compact SOT-25A footprint （对比 BQ29700DSER (TI))
- High-voltage CMOS process tolerates direct cell connection （对比 R5402N101KD (Nisshinbo))
设计说明
Route the cell-sense input (VCC pin) with a Kelvin connection directly to the battery terminal pad, bypassing the protection-FET source connection. This avoids IR-drop error from the protection-FET on-resistance (typically 10-30 mOhm at peak discharge current), which can shift the detected cell voltage by tens of millivolts and cause premature or delayed voltage-detector triggering. Place the 100 nF VCC bypass capacitor within 2 mm of the package, and use a wide ground pour under the exposed pad area for thermal and noise performance.
Do not omit the cell-balance MOSFET or power resistor on the balance pin. Without an external balancing element, the MM3513H01NRH can still detect cell voltage but cannot perform cell balancing, which is the primary function in multi-cell stacks. Size the balancing resistor so that the balance current does not exceed C/20 to C/10 of the cell capacity; for example, a 2000 mAh cell at C/20 yields 100 mA of balance current, requiring a balancing resistor of approximately 30 ohm at 4.2 V full charge.
The SOT-25A package has limited thermal dissipation. Estimated: with a 100 mA balance current at 4.2 V full charge, the external balancing resistor dissipates approximately 0.4 W, but the IC itself dissipates only a few milliwatts because the balance current flows through the external MOSFET/resistor, not the IC die. Still, keep the IC away from the cell tab and any high-current traces to avoid ambient heating that could shift the internal voltage detector reference. For continuous balance operation, mount the device on at least 50 mm^2 of copper pour.
Confirm the SOT-25A pinout against the manufacturer datasheet before finalizing PCB layout, because some manufacturers use pin 4 as a test pin and others use it as a mode-select or hysteresis pin. The Minebea Mitsumi SOT-25A package is functionally compatible with the standard SOT-23-5 land pattern but the pin assignments can vary across vendors; verify before substituting a non-Mitsumi part on the same PCB.
合规信息
RoHS compliance confirmed by DigiKey and JLCPCB catalog listings. AEC-Q100 not applicable (consumer-grade IC). Halogen-free and conflict-minerals status not listed in distributor data; contact Minebea Mitsumi for certificates.
