PM-1075G电源芯片 TL431AQDBZR

Charger input voltage from AC adapter. The AC pin can be left open or can be connected to AC 40 I
ground if the charger is not used.
AGND2 44 — Analog ground connection. All analog ground pins are connected internally on the chip.
ISET 37 I External charge current setting resistor connection for use with AC adapter
PG 11 O Indicates when a valid power supply is present for the charger (open drain)
Thermal Pad - — Connect the thermal pad to GND
TS 38 I Battery temperature sense input
Charger input voltage from USB port. The USB pin can be left open or can be connected to USB 43 I
ground if the charger is not used.
VBAT_A 41 I Sense input for the battery voltage. Connect directly with the battery.
VBAT_B 42 O Power output of the battery charger. Connect directly with the battery.
SWITCHING REGULATOR SECTION
AGND3 45 — Analog ground connection. All analog ground pins are connected internally on the chip.
L1_A 9
— Switch pin of VMAIN converter. The VMAIN inductor is connected here.
L1_B 10
L2 4 — Switch pin of VCORE converter. The VCORE inductor is connected here.
PGND1_A 15
— Power ground for VMAIN converter
PGND1_B 16
PGND2 46 — Power ground for VCORE converter
Power supply for digital and analog circuitry of MAIN and CORE DC-DC converters. This
VCC 6 I must be connected to the same voltage supply as VINCORE and VINMAIN. Also supplies
serial interface block
VCORE 48 I VCORE feedback voltage sense input, connect directly to VCORE
Input voltage for VCORE step-down converter. This must be connected to the same voltage VINCORE 5 I
supply as VINMAIN and VCC.
VINMAIN_A 7 Input voltage for VMAIN step-down converter. This must be connected to the same voltage I
VINMAIN_B 8 supply as VINCORE and VCC.
VMAIN 13 I VMAIN feedback voltage sense input, connect directly to VMAIN
LDO REGULATOR SECTION
AGND1 21 — Analog ground connection. All analog ground pins are connected internally on the chip.
VFB_LDO1 23 I Feedback input from external resistive divider for LDO1
VINLDO1 22 I Input voltage for LDO1
VINLDO2 19 I Input voltage for LDO2
VLDO1 24 O Output voltage for LDO1
VLDO2 20 O Output and feedback voltage for LDO2
DRIVER SECTION
LED2 2 O LED driver, with blink rate programmable via serial interface
VIB 3 O Vibrator driver, enabled via serial interface
CONTROL AND I2C SECTION
BATT_COVER 39 I Indicates if battery cover is in place
DEFCORE 1 I Input ** indicating default VCORE voltage, 0 = 1.3 V, 1 = 1.6 V
DEFMAIN 12 I Input ** indicating default VMAIN voltage, 0 = 1.8 V, 1 = 3.3 V
GPIO1 26 I/O General-purpose open-drain input/output
GPIO2 25 I/O General-purpose open-drain input/output
GPIO3 18 I/O General-purpose open-drain input/output
GPIO4 17 I/O General-purpose open-drain input/output
HOT_RESET 31 I Push-button reset input used to reboot or wakeup processor via TPS65013

Melexis MLX90821 Relative Pressure Sensors
Melexis MLX90821 Relative Pressure Sensors are factory-calibrated relative pressure sensors that deliver a ratiometric analog output or a digital ** using the SENT protocol. MLX90821 features a MEMS sensor that enables reliable and accurate measurement of low pressures of a few tenths of millibars. These Melexis relative pressure sensors include an optimized architecture and high-density CMOS technology. These design features provide leading automotive electromagnetic compatibility (EMC) performance. The digital-**-processor architecture uses a 16-bit microcontroller to provide high initial accuracy of pressure and optional external NTC temperature.
FEATURES
High accuracy relative pressure sensor
Ratiometric analog output or digital SENT output with available compensated ±1°C accurate NTC temperature information
System in a package
MEMS
Analog front end circuitry
16-bit microcontroller
Analog back end circuitry
Voltage regulators
Automotive qualified and automotive diagnostic features
Clamping levels
Broken track diagnostics
Multiple internal fault diagnostics
Factory calibrated or fully programmable through the connector for customized calibration curves
Backside exposed relative pressure sensor for higher resistance to common automotive media
Robust, easy-to-seal package
SPECIFICATIONS
18V supply voltage
-14V reverse voltage protection
18V positive output voltage
-0.5V reverse output voltage
-40°C to +150°C automotive temperature range
-40°C to +125°C programming temperature range
3.75bar burst pressure at room temperature
APPLICATIONS
Fuel vapor pressure sensors
Crankcase ventilation pressure sensors
Pressure sensors for filter monitoring

Texas Instruments SN74HCS27-Q1汽车类或非门
Texas Instruments SN74HCS27-Q1汽车类三路3输入或非门包含三个具有施密特触发输入的独立3输入或非门。每个逻辑门以正逻辑执行布尔函数Y = A + B + C。
特性
符合汽车应用类AEC-Q100标准：
器件温度等级1：-40°C至+125°C，TA
器件人体模型 (HBM) 静电放电 (ESD) 分类等级2
器件充电器件模型 (CDM) ESD分类等级C6
宽工作电压范围：2V至6V
施密特触发器输入允许缓慢或嘈杂的输入信号
低功耗
典型ICC为100nA
典型输入漏电流：±100nA
输出驱动：±7.8mA (5V)
应用
警报/篡改检测电路
S-R锁存

描述
bq2510x 系列器件是面向空间受限类便携式应用的高度集成锂离子和锂聚合物线性充电器。 具有输入过压保护的高输入电压范围支持低成本、未稳压的适配器。
bq2510x 具有一个可为电池充电的电源输出。 如果在 10 小时的安全定时器期间内平均系统负载无法让电池充满电，则可以使系统负载与电池并联。
电池充电经历以下三个阶段：调节，恒定电流和恒定电压。 在所有充电阶段，内部控制环路都会监控 IC 结温，当其**过内部温度阈值时，它会减少充电电流。
充电器功率级和充电电流感测功能均完全集成。 该充电器具有高精度电流和电压调节环路以及充电终止功能。 预充电电流和终止电流阈值可通过 bq2510x 上的一个外部电阻进行编程。 快速充电电流值也可通过一个外部电阻进行编程。
特性
充电
1% 充电电压准确度
10% 充电电流准确度
支持充电电流**低（10mA 至 250mA）的应用
支持低 1mA 充电终止电流
**低电池输出泄漏电流：75nA（大值）
可调节的终止和预充电阈值
高电压化学支持：bH/01H 为 4.35V，bA 为 4.30V
保护
30V 额定输入电压；具有 6.5V 输入过压保护
输入电压动态电源管理
125°C 热调节；150°C 热关断保护
OUT 短路保护和 ISET 短路检测
通过电池负温度系数 (NTC) 在 JEITA 范围内运行 – 冷故障时的快速充电电流折半，热故障时的电压为 4.06V (b/01) 或 4.2V (bH/01H)
固定 10 小时安全定时器
系统
针对电池组缺失情况的自动终止和定时器禁用模式 (TTDM)
采用小型 1.60mm × 0.90mm 芯片尺寸球状引脚栅格阵列 (DSBGA) 封装
应用
健身配件
智能手表
Bluetooth 耳机
低功耗手持器件