Nisshinbo Two New Series of 1-cell Li-ion Battery Protection Ics:NB7141, The World‘s First Product with A Built-in Watchdog Timer, and NB7140, A Product with Forced Reset Function
NISSHINBO Micro Devices Inc. has launched two new series of 1-cell Li-ion Battery Protection ICs. These are the NB7141 series, the world's first(*1) product with a built-in watchdog timer, and the NB7140 series, a product with a forced reset function.
Overview
Devices that use 1-cell Li-ion batteries, such as wearable/hearable devices, hearing aids, and health devices, have a growing market due to the proliferation of VR/AR (Virtual Reality/Augmented Reality) devices and increasing health awareness. Furthermore, demands for safety improvement are increasing as people wear those devices directly, and safety measures are also becoming more important for the protection functions of batteries.
These two new products feature industry-leading high-accuracy overcharge, over-discharge, and discharge overcurrent detection functions for 1-cell batteries, as well as a forced standby function. In addition, the 0V battery charging inhibition voltage of the two new ICs is configurable more flexibly than that of conventional ones. Furthermore, the NB7140 series has a forced reset function, and the NB7141 series is the world's first 1-cell protection IC equipped with a watchdog timer function. They contribute to the competitiveness of customers' Li-ion battery applications with high accuracy, low consumption, improved safety, and small dimensions.
NB7140 Series (WLCSP-8-P10 Package)
*1 Based on Nisshinbo Micro Devices Inc. research, as of December 2022.
*2 The price is based on the consumption tax rate as of December 2022.
Features
1. World's First Product with Built-in Watchdog Timer (NB7141)
Incorporating a watchdog timer makes it possible to externally monitor a microcontroller in case of uncontrolled operation. This eliminates the need for additional specialized ICs and reduces mounting area. Compared to a watchdog timer embedded in a microcontroller, it can ensure more safety because there is no risk of watchdog timer malfunction due to common causes with the microcontroller.
2. Forced Reset Function (NB7140)
Using the RST (reset) terminal enables to turn off of the charge and the discharge FETs, which makes the leak test of the protection circuit easy. Additionally, installing the RST terminal allows the system power supply to be cut off by turning off the FETs when a microcontroller runs out of control, which can reset the power supply to the microcontroller. This improves the stability of the system.
3. Industry-leading High-accuracy Two-step Discharge Overcurrent Detection
Discharge overcurrent detection voltage 1：
0.005 V to 0.030 V, Accuracy: ±1.0mV,
0.0305 V to 0.050 V, Accuracy: ±1.5mV
Discharge overcurrent detection voltage 2：
0.011 V to 0.060 V, Accuracy: ±2.0mV,
0.0605 V to 0.100 V, Accuracy: ±4.0%
The low voltage and higher accuracy of the overcurrent detection allow using a sense resistor with low resistance. This reduces the impedance of a battery pack, thereby reducing the heat generation at high currents and simplifying the thermal design of a board.
4. Industry-leading High-accuracy Overcharge Detection
Detection voltage range: 4.2V to 4.7V, Accuracy: ±15mV
The improved accuracy contributes to strengthening safety in the trend of charging voltage increase.
5. Industry-leading High-accuracy Over-discharge Detection
Detection voltage range: 2.1V to 3.2V, Accuracy: ±35mV
This contributes to longer battery life by enabling the remaining battery charge to be used as close to an allowable value as possible.
6. Industry-leading Low Supply Current
(Normal Mode) NB7140: Typ. 1.5μA / Max. 3.0μA (25% improvement compared to our conventional product),
NB7141: Typ. 2.0μA / Max. 4.0μA
(Standby Mode) Max. 0.04μA (Over-discharge detection latch type),
Max. 0.20μA (Over-discharge detection auto-release type)
A long operating time of applications is achieved thanks to low supply current at normal mode and standby mode.
7. High-accuracy 0 V Battery Charging Inhibition Voltage
Setting range: 1V to 2.5V, Accuracy: ±4.0%
Since charging 0V batteries (low-voltage batteries) may cause an internal short circuit, it can meet the demand for detailed settings of the inhibition voltage from a safety viewpoint.
8. Forced Standby Function
The STB (standby) terminal makes it possible to enter forced standby mode without putting batteries into the over-discharge state, which reduces current consumption significantly until a charger is connected. This makes it possible to minimize battery loss during inventory periods prior to product shipment.
9. Package
An ultra-thin, ultra-small, and leadless package WLCSP-8-P10 (1.6×1.0× 0.3mm) is adopted.
Main Specifications
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本文由星晴123转载自Nisshinbo News，原文标题为:New Products: 1-cell Li-ion Battery Protection ICs, NB7141 Series, World's First Product with Built-in Watchdog Timer, andNB7140 Series, Product with Forced Reset Function，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
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目录- 公司简介 新产品列表 运算放大器和比较器 AFE 电源管理IC LED驱动器/控制器 音频和视频IC 通信用IC和射频器件 电机IC 光电传感器 信号调节外设 产品封装一览 产品索引
型号- NJM2902C,NJM2902B,NJU7076B,NJM7056,R3134,R3133,R2045,NJW2368,R1191,R5550,NJW4303,R1190,NJM2842,R3132,NJM2841,R2043,R3130,NJM2846,NJM2845,NJM2847,NJL5901AR-1,NJM5532C,NJM2901C,R5110XXX1A,R5110XXX1B,NJM393C,R5326,NJG1697EM1,R5324,R3150-A,NJU6364系列,R5560,NJU6397系列,NJW2377,NJU1206MER,NJM2855,R2051,NJM2857,NJM2856,NJW1280,NJU7098A,NJM2902CA,R5110XXX2C,R5110XXX2D,NJM390A,NJU211,R3150-B,R2061,R3150-E,NJW2344,NJM2820,R3154,R3150-F,NJM2822,R2062,R3152,NJM2821,NJW4760,RM516,NJM2823,NJM2825,NJM2828,NJG1801AKGC-A,NJM2827,NJM2829,NSNJ9200A,NJM064C,NJM391A,RS5C338A,R5106,NJU3610,R5107,R5108,R5109,R5104,R5105,NJM2151A,R3160,R5101,NJM2831,NL6010,NJM2830,NA2100,NJM2835,NL6011,NJM2837,NJM2836,NL6012,NJM2839,NJL5902R,R1155,NJG1669MD7,R1154,NJW4107,NJU72501,NJW4106,NJW4105,NJM2570A,NJW4104,NJW4100,R1150,NJM2801,NJM2804,NJM2806,NJM2805,R5528,NJM062C,R5524,R5527,R5520,NJW4109,NJG1684ME2,NJW4108,R5523,NJW4118,NJW4116,NJW4113,R1163,R1160,R1161,NJW4111,NJW4110,NJW4351,NJM2815,NJM2816,NJM12877,NJW4162A,NJU7381A,NJG1108HA8,NJM2904CA,R3114,R2025,NJM2819A,R3112,NJG1617K11,R3111,R5538,R2023,R3118,R3117,NJM2904C,R5533,R3116,NJM2904B,NJG1144KA1,R1170,R3200X064A,NJMOP177,R1173,NJM2374A,R2262,NJW1298,NJW4321,R1171,NJW4320,R1172,NJM78M00S,NJM2903C,NJU7382A,NJM084C,RN5T618,R2033,NJG1801BKGC-A,R5542,R5543,R1180,R5540,R5541,NJM2373A,NJG1657MD7,NJW2392,NJM12856,NJU7365,NJU7366,NJU7367,NJU7092A,NJM2879-H,NJU7364,NJM2748A,RP600,MUSES8832,RN5U700,RP602,RP604,RN5T614,RP605,NB7200,NJU7360,R1801,NJU7356,NJU77572,R1800,NJM41001T,RN5RZ,NJU8759A,NJU7093A,NJU6368系列,NJU7116,NJL6402R-2,NJU7118,NJU7119,NJM2505A,NJU6322系列,NJW1200,NJG1740MHH,MUSES8820,RN5VD,NJU7387,NJU72090,R1810,NJU7141,R3200X002X,NJU7384,NJU7385,NJU7386,RC5T519,NJU72097,NJU6311系列,RM590,NJU7380,NJG1730MD7,NJU9555,NJM17431,NJM2769B,NJU77550,NJU7091A,R3200X001X,NJU77552,NJU77551,NJU77554,NJU6377系列,NT1189GDAE3S,NJU9103,RC5T619X,NJU9102,NJU9101,R5117,R5114,NJM2880,R5115,R5116,NJM2882,NJM2881,R5110,NJM2884,R5111,R3121XXXXG,NJM2883,NJM2641,R5112,NJM2886,NJW1230,NJM2885,R5590,NJM2888,NJM2646,NJM2887,NL6002,R3121XXXXA,NT1191GEAE3S,NJM2407,R3121XXXXE,NJM8191,NJM8190,NJU6063,NJU7394,RM517,RV5C348B,NJU6366系列,NJG1812ME4,NJM2893,NJM2173A,NJM2892,NJM2894,NJW1241,NJW1240,NJG1812AMET-A,NJU7392,NJU6062,NJU6061,NJU6222系列,NJU77580,NJU77582,RN5RF,NJU6402B,NJM2860,NJM2862,NJM2861,NJL5909RL-4,RN5RL,NJM2864,NJM2863,RN5RK,NJM2866,NJG1682MD7,NJM2865,NJM2868,NJU7181,NJM2626,NJM2867,NJM2627,NJL5830R,RN5RT,NJL6195R,NJW2307,NJM2749A,NJM2871,NJM2870,NJG1159PHH,NJW2311,NJM2872,R3121-A,NJM2875,NJM2874,NJM2877,NJM2876,R3121-E,NJU6080,NJM2879,NJM2878,R3121-G,NJG1816K75,NJG1143UA2,NJU7640,NJM14570,NJU6311,NC2700M,NJM2288,NJM2287,RP200,NJL5513R,RS5C372A,RP201,RS5C372B,RP202,NJW1143A,NJU7630,NJU7631,NJU7632,NJM2872A,NC2701M,NJU71074,NJM8830,NSVS1231,NJM2299,NJM2059,NJM2058,NJM2872B,NJG1145UA2,NJG1814MD7,NJU8759,NJU71041,NJG1146KG1,NJMOP1772,NJU8758,NJW1142A,NJU71044,NJW4305A,NJM5532,NJM084CA,NJM8801,NJM2871A,NJL6193R-3,NJM2871B,R3120XXXXE,NJU6323,NJU6322,NJU6321,R3120XXXXA,NJU7650,NJG1186PJL-A,NJU6324,NJW1933,NJM2275,NJM2274,NJM2278,NJM1431A,NJL6407R,NJM3414A,NJL6502R-1,NJM14558,NJU7200,NJU7201,NJU7202,NJM2768B,NJU7680,RP402,NJG1151MD7,NC2600,RP400,RP401,NJU7098AF1-C,MUSES72323,NJU3719A,NS1101,NJU7670,NS1102,NJU6324系列,NJU7677,NJM78M00,NJM41005T,NJG1818K75,NJM358C,NJL5510R,NJU7222,NJU7223,NJG1648HB6,NJL6401R-3,NC2702M,NJU6377,NJU6376,NJU7221,NJL5313R,NJM082CA,NJU7211,NJU6363,NJU6360,NJU7691,NJU6367,NC2703M,NJU6366,NJU6365,NJU6364,NJU6369,NJU6368,NJU8789,NJM358CA,NJU77903-Z2,NJU7690,NJU077,R1232,NJM2586A,RN5C752,NJD3015,RN5C750,NJM064CA,NSVS1093,NJW4148,R5111XXX1A,R5111XXX1B,NJW4142,NJW4141,NJW4382,NJW4140,NJW4750T1,NJM45001,NJW4381,R1243,R5601,R5602,R1242,NJU72322,R1245,NJG1186PJL,R5111XXX2D,NJU72315,NJW4615A,NJU72750A,NJM2561B,NJG1800NB2,R1240,NJM2561A,R5111XXX2C,NJW4155,NJW4154,NJW4153,NJM13403,NJM13404,NJU7388B,NJG1739K51,R5617,R5619,R5612,R5613,NJM393CA,R5610,R5611,NJW4119,NJW4128,NJU72751A,NJW4810A,NJM2584A,NJW4122,NJW5211,NJW5210,NJW4120,MUSES72320,NJG1173UX2,NSTS9116A,NJW4152-AB,NJD3004,NJU71091T1,NJD3007,NJG1801K75,NJW4138,NJM2583A,NJW4375,R1260,NJW4133,NJW4132,NJL6195R-W,NJW4372,NSTS9117A,NJU7386A,ND1160,NJU7606,NJM2566A,NJU7600,RN5C713,NJU7601,NJU7602,RN5C711,NJW1871A,RN5C716,NJM062CA,NJW4188,NJW4187,NJU7367A,NJW4186,NJU4051B,NJW4185,NP8700,NJW4184,NJW4183,NJW4182,NJW4181,NJU7367B,R1207,NJW4190,R1208,R1205,R1206,R1200,NJU71031,NJG1127HB6,NJG1156PCD,NJMOP2277,R1203,R1204,NJU71032,R1202,NJU77806,NJG1666MD7,NJW4196,NJW4191,R1218,NJU7620,NJU4053B,NJM2060,R1210,R1211,R1214,R1215,R1212,R1213,NJM2068,NJU3711A,NJM339C,NJW4161,ND1130,NJW4160,NJG1686MHH,NR1700,NJU7610,R1225,NJU72344,NJU72343,NJU6394系列,R1223,NJU72342,R1224,NJU72341,R3150XXXXE,R3150XXXXF,NJW4177,NJU4052B,NJG1117HA8,NJW4175,NJW4172,NJW4171,NJW4170,NJU3712A,R3150XXXXA,R3150XXXXB,NJM41031,NJU7870-Z2,NJM41033,NJM8020,NJU7086,NJM2903CA,NJM41035,R5114XXX2,R5114XXX1,NJU7391A,NJU7089,R5436,R5437,R5438,NJM8021,R5439,R5432,R5433,R5434,R5435,NJG1187KG1,NJW1159,NJM2723,NJM2725
R5487L1xxxx/L2/L3/L4 Series Reliability Test
型号- R5487L1XXXX SERIES,R5487L4XXXX,R5487L2XXXX SERIES,R5487L3XXXX SERIES,R5487L2XXXX,R5487L4XXXX SERIES,R5487L1XXXX,R5487L3XXXX
R5405N (-FE) Series Reliability Test Report
型号- R5405N SERIES,R5405N (-FE),R5405N (-FE) SERIES,R5405N
NB7140ZA Series 1-Cell Li-ion Battery Protection IC with Forced Standby and Reset Function
型号- NB7140ZA SERIES,NB7140ZA
电子商城
品牌：NISSHINBO
品类：Li-ion Battery Protection IC
价格：￥0.9800
现货： 3,290
品牌：NISSHINBO
品类：Li-ion Battery Protection IC
价格：￥0.9800
现货： 2,980
现货市场
服务
可烧录MCU/MPU，EPROM,EEPROM,FLASH,Nand Flash, PLD/CPLD,SD Card,TF Card, CF Card,eMMC Card,eMMC,MoviNand, OneNand等各类型IC,IC封装：DIP/SDIP/SOP/MSOP/QSOP/SSOP/TSOP/TSSOP/PLCC/QFP/QFN/MLP/MLF/BGA/CSP/SOT/DFN.
最小起订量： 1 提交需求>
世强深圳实验室提供Robei EDA软件免费使用服务，与VCS、NC-Verilog、Modelsim等EDA工具无缝衔接，将IC设计高度抽象化，并精简到三个基本元素:模块、引脚、连接线，自动生成代码。点击预约，支持到场/视频直播使用，资深专家全程指导。
实验室地址： 深圳 提交需求>
授权代理品牌：集成电路
授权代理品牌：分立元件
授权代理品牌：接插件及结构件
授权代理品牌：部件、组件及配件
授权代理品牌：电源及模块
授权代理品牌：电子材料
授权代理品牌：仪器仪表及测试配组件
授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
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