component
VPC2187B
Public Made by Adomby adom
VPSC DC-DC Converters, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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vpc2187b: specified limits as data (metadata.characteristics, 58 rows from the datasheet)
2 files changed
+769−1
README.md+65@@ -28,6 +28,71 @@ VPC2187B from VPSC, in a MSOP-10. Pinout and pin descriptions extracted from the | Category | Power Management (PMIC) | | Pins | 10 | +## Electrical characteristics++Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).++| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |+|---|---|---|---|---|---|---|---|+| VIN 输入电压 (recommended) | VIN | 4 | | 100 | V | | 3 |+| 工作结温 (recommended) | TJ | -40 | | 125 | ℃ | | 3 |+| VIN 对 GND 的电压范围 (absolute maximum) | VIN | -0.3 | | 110 | V | | 3 |+| VDD 和 GATE 对 GND 的电压范围 (absolute maximum) | VDD | -0.3 | | 25 | V | | 3 |+| CS 对 GND 电压范围 (absolute maximum) | CS | -0.3 | | 1.25 | V | | 3 |+| 所有其它引脚对 GND 的电压范围 (absolute maximum) | | -0.3 | | 6.6 | V | | 3 |+| 最大工作结温 TJMAX (absolute maximum) | TJMAX | | | 150 | ℃ | | 3 |+| VIN 钳位持续电流 (absolute maximum) | IVIN(CLAMP) | | | 1 | mA | | 3 |+| FB 电流 (absolute maximum) | IFB | -2.5 | | | mA | | 3 |+| VIN 钳位电压 ESD clamp | VIN(clamp) | 110 | 118 | 128 | V | IVIN=1mA，VDD=12V | 3 |+| 正常工作电流 IQ | IQ | 2 | | 3 | mA | GATE 悬空，COM接3.3k到GND | 3 |+| VIN 供电能力 IVIN(SRC) | IVIN(SRC) | 15 | | 20 | mA | VIN=12V，VDD=6.5V | 3 |+| VDD 启动电压 VDD(ON) VPC2187B | VDD(ON) | 3.5 | 3.7 | 3.9 | V | VDD 电压上升 | 3 |+| VDD 锁定电压 VDD(OFF) VPC2187B | VDD(OFF) | 3.2 | 3.4 | 3.6 | V | VDD 电压下降 | 3 |+| VIN 到 VDD 的稳压值 VDD(REG) | VDD(REG) | 8.1 | 8.7 | 9.3 | V | VDD 和 GATE 不带负载 | 3 |+| VDD 过压保护阈值电压 VDD(OVP) | VDD(OVP) | 17.5 | 18.6 | 19.7 | V | VDD 电压上升 | 4 |+| VDD ESD 钳位电压 VDD(clamp) | VDD(clamp) | 23 | | 27 | V | IVDD（SNK）=10mA | 4 |+| 限流阈值电压 VCS(LIM) VPC2187B | VCS(LIM) | 140 | 156 | 172 | mV | | 4 |+| 最小阈值电压 VCS(MIN) PSR 反馈模式 VPC2187B | VCS(MIN) | 26 | 31 | 36 | mV | PSR 反馈模式 | 4 |+| 短路保护阈值 VSCP(LIM) VPC2187B | VSCP(LIM) | 225 | 250 | 275 | mV | VCOM 超过 VCOM(OLP) | 4 |+| 软启动引脚开路电压 VSS(OPEN) | VSS(OPEN) | 5 | 5.4 | 5.8 | V | CLK 悬空 (as printed) | 4 |+| 内置软启动时间 tSS(IN) | tSS(IN) | 0.8 | 1.2 | 1.6 | mS | SS 悬空 | 4 |+| 外置软启动电流 ISS | ISS | 22 | 28 | 34 | uA | | 4 |+| RT=44.2kΩ 时的频率 FOSC1 | FOSC1 | 135 | 150 | 165 | kHz | RT=44.2kΩ | 4 |+| RT=22kΩ 时的频率 FOSC2 | FOSC2 | 270 | 300 | 330 | kHz | RT=22kΩ | 4 |+| RT=13.3kΩ 时的频率 FOSC3 | FOSC3 | 440 | 500 | 560 | kHz | RT=13.3kΩ | 4 |+| RT 引脚基准电压 VRT | VRT | 1.92 | 2.02 | 2.12 | V | | 4 |+| 欠压保护比较电压 VREF(UVP) | VREF(UVP) | 1.9 | 2 | 2.1 | V | | 4 |+| UVP 引脚被钳位电压 VUVP(CLAMP) | VUVP(CLAMP) | 5 | 5.5 | 6 | V | IUVP=0.6mA 注入 UVP 引脚 | 4 |+| 保护后抽取的下拉电流 IUVP(SNK) | IUVP(SNK) | 3.4 | 4.4 | 5.4 | uA | VUVP=1.8V | 4 |+| EA 正端口基准电压 VREF(REG) | VREF(REG) | 1.975 | 2 | 2.025 | V | | 4 |+| 最大占空比 DMAX | DMAX | 75 | 80 | 85 | % | | 5 |+| COM 引脚开路电压 VCOM(OPEN) | VCOM(OPEN) | 5 | 5.4 | 5.8 | V | | 5 |+| COM 脚短路电流 ICOM | ICOM | 0.6 | 1.1 | 1.5 | mA | VCOM=0V | 5 |+| GATE 高电平压差 VGATEH (50mA 负载) | VGATEH | 185 | | 400 | mV | IGATE=50mA | 5 |+| GATE 低电平电压 VGATEH (100mA 上拉) | VGATEH | 170 | | 350 | mV | IGATE=-100mA | 5 |+| 过温保护阈值 TSHDN | TSHDN | 148 | 163 | 178 | ℃ | | 5 |+| 使能关断时输入电流 IVIN(SHDN) | IVIN(SHDN) | | 0.1 | | uA | VUVP=0V | 3 |+| 输入欠压未关断时输入电流 IVIN(UVP) | IVIN(UVP) | | 294 | | uA | VUVP=1.8V | 3 |+| VIN 到 VDD 的跌落电压 VDD(DO) | VDD(DO) | | 1.2 | | V | IVDD(LOAD)=5mA,VIN=8V | 3 |+| 防倒灌二极管耐压 VBV(DIODE) | VBV(DIODE) | | 37 | | V | | 4 |+| VDD 过压时吸收电流 IDDSNK(OVP) | IDDSNK(OVP) | | 6.6 | | mA | VDD= VDD（OVP） | 4 |+| 电流限制比较延时 tCS(DLY) | tCS(DLY) | | 40 | | nS | CS 从 0 到 0.6V 开始计算，到 GATE 变为低电位 | 4 |+| PWM 比较消隐时间 tLEB(CS) | tLEB(CS) | | 95 | | nS | | 4 |+| 增加斜坡补偿起始占空比 D | D | | 35 | | % | | 4 |+| 自恢复保护模式休眠时间 TSLEEP(SR) | TSLEEP(SR) | | 800 | | mS | | 4 |+| 软启动泄放电阻 RSS(DIS) | RSS(DIS) | | 300 | | Ω | | 4 |+| EA 低频增益 AV | AV | | 1400 | | V/V | | 4 |+| FB 引脚输入电流 IFB (FB 作为反馈电压) | IFB | | 40 | | nA | FB 引脚作为反馈电压时 | 4 |+| FB 引脚输入电流 IFB (COM 作为反馈电压) | IFB | | -20 | | uA | COM 引脚作为反馈电压时 | 4 |+| 采样延迟时间 TD(SAMP) | TD(SAMP) | | 252 | | nS | RT=22kΩ | 4 |+| COM 开环保护阈值电压 VCOM(OLP) | VCOM(OLP) | | 4.6 | | V | VDD≥5.4V | 5 |+| 欠压保护使能关闭 LDO 阈值 VUVP(OFF) | VUVP(OFF) | | 0.6 | | V | VUVP 电压从高往低 | 5 |+| GATE 输出峰值电流 IGATE(SRC) | IGATE(SRC) | | 0.8 | | A | VGATE=7.5V | 5 |+| GATE 抽取峰值电流 IGATE(SINK) | IGATE(SINK) | | 1.5 | | A | VGATE=7.5V | 5 |+| GATE 上升时间 tr | tr | | 16 | | nS | GATE 接 1nF 到 GND | 5 |+| GATE 下降时间 tf | tf | | 8 | | nS | GATE 接 1nF 到 GND | 5 |+| 过温保护回差 TSHDN(HYS) | TSHDN(HYS) | | 18 | | ℃ | | 5 |+ ## CAD (KiCad official) - Symbol: `VPC2187B`
page.json+704−1@@ -189,6 +189,709 @@ "Package": "MSOP-10", "Category": "Power Management (PMIC)", "Pins": "10"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "602d834347f7366b",+ "rows": [+ {+ "name": "VIN 输入电压 (recommended)",+ "symbol": "VIN",+ "kind": "recommended_operating",+ "unit": "V",+ "min": 4,+ "typ": null,+ "max": 100,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "工作结温 (recommended)",+ "symbol": "TJ",+ "kind": "recommended_operating",+ "unit": "℃",+ "min": -40,+ "typ": null,+ "max": 125,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VIN 对 GND 的电压范围 (absolute maximum)",+ "symbol": "VIN",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 110,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VDD 和 GATE 对 GND 的电压范围 (absolute maximum)",+ "symbol": "VDD",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 25,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "CS 对 GND 电压范围 (absolute maximum)",+ "symbol": "CS",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 1.25,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "所有其它引脚对 GND 的电压范围 (absolute maximum)",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 6.6,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "最大工作结温 TJMAX (absolute maximum)",+ "symbol": "TJMAX",+ "kind": "absolute_maximum",+ "unit": "℃",+ "min": null,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VIN 钳位持续电流 (absolute maximum)",+ "symbol": "IVIN(CLAMP)",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 1,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "FB 电流 (absolute maximum)",+ "symbol": "IFB",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": -2.5,+ "typ": null,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VIN 钳位电压 ESD clamp",+ "symbol": "VIN(clamp)",+ "kind": "electrical",+ "unit": "V",+ "min": 110,+ "typ": 118,+ "max": 128,+ "conditions": "IVIN=1mA，VDD=12V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "正常工作电流 IQ",+ "symbol": "IQ",+ "kind": "electrical",+ "unit": "mA",+ "min": 2,+ "typ": null,+ "max": 3,+ "conditions": "GATE 悬空，COM接3.3k到GND",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VIN 供电能力 IVIN(SRC)",+ "symbol": "IVIN(SRC)",+ "kind": "electrical",+ "unit": "mA",+ "min": 15,+ "typ": null,+ "max": 20,+ "conditions": "VIN=12V，VDD=6.5V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VDD 启动电压 VDD(ON) VPC2187B",+ "symbol": "VDD(ON)",+ "kind": "electrical",+ "unit": "V",+ "min": 3.5,+ "typ": 3.7,+ "max": 3.9,+ "conditions": "VDD 电压上升",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VDD 锁定电压 VDD(OFF) VPC2187B",+ "symbol": "VDD(OFF)",+ "kind": "electrical",+ "unit": "V",+ "min": 3.2,+ "typ": 3.4,+ "max": 3.6,+ "conditions": "VDD 电压下降",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VIN 到 VDD 的稳压值 VDD(REG)",+ "symbol": "VDD(REG)",+ "kind": "electrical",+ "unit": "V",+ "min": 8.1,+ "typ": 8.7,+ "max": 9.3,+ "conditions": "VDD 和 GATE 不带负载",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VDD 过压保护阈值电压 VDD(OVP)",+ "symbol": "VDD(OVP)",+ "kind": "electrical",+ "unit": "V",+ "min": 17.5,+ "typ": 18.6,+ "max": 19.7,+ "conditions": "VDD 电压上升",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "VDD ESD 钳位电压 VDD(clamp)",+ "symbol": "VDD(clamp)",+ "kind": "electrical",+ "unit": "V",+ "min": 23,+ "typ": null,+ "max": 27,+ "conditions": "IVDD（SNK）=10mA",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "限流阈值电压 VCS(LIM) VPC2187B",+ "symbol": "VCS(LIM)",+ "kind": "electrical",+ "unit": "mV",+ "min": 140,+ "typ": 156,+ "max": 172,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "最小阈值电压 VCS(MIN) PSR 反馈模式 VPC2187B",+ "symbol": "VCS(MIN)",+ "kind": "electrical",+ "unit": "mV",+ "min": 26,+ "typ": 31,+ "max": 36,+ "conditions": "PSR 反馈模式",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "短路保护阈值 VSCP(LIM) VPC2187B",+ "symbol": "VSCP(LIM)",+ "kind": "electrical",+ "unit": "mV",+ "min": 225,+ "typ": 250,+ "max": 275,+ "conditions": "VCOM 超过 VCOM(OLP)",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "软启动引脚开路电压 VSS(OPEN)",+ "symbol": "VSS(OPEN)",+ "kind": "electrical",+ "unit": "V",+ "min": 5,+ "typ": 5.4,+ "max": 5.8,+ "conditions": "CLK 悬空 (as printed)",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "内置软启动时间 tSS(IN)",+ "symbol": "tSS(IN)",+ "kind": "timing",+ "unit": "mS",+ "min": 0.8,+ "typ": 1.2,+ "max": 1.6,+ "conditions": "SS 悬空",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "外置软启动电流 ISS",+ "symbol": "ISS",+ "kind": "electrical",+ "unit": "uA",+ "min": 22,+ "typ": 28,+ "max": 34,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "RT=44.2kΩ 时的频率 FOSC1",+ "symbol": "FOSC1",+ "kind": "electrical",+ "unit": "kHz",+ "min": 135,+ "typ": 150,+ "max": 165,+ "conditions": "RT=44.2kΩ",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "RT=22kΩ 时的频率 FOSC2",+ "symbol": "FOSC2",+ "kind": "electrical",+ "unit": "kHz",+ "min": 270,+ "typ": 300,+ "max": 330,+ "conditions": "RT=22kΩ",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "RT=13.3kΩ 时的频率 FOSC3",+ "symbol": "FOSC3",+ "kind": "electrical",+ "unit": "kHz",+ "min": 440,+ "typ": 500,+ "max": 560,+ "conditions": "RT=13.3kΩ",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "RT 引脚基准电压 VRT",+ "symbol": "VRT",+ "kind": "electrical",+ "unit": "V",+ "min": 1.92,+ "typ": 2.02,+ "max": 2.12,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "欠压保护比较电压 VREF(UVP)",+ "symbol": "VREF(UVP)",+ "kind": "electrical",+ "unit": "V",+ "min": 1.9,+ "typ": 2,+ "max": 2.1,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "UVP 引脚被钳位电压 VUVP(CLAMP)",+ "symbol": "VUVP(CLAMP)",+ "kind": "electrical",+ "unit": "V",+ "min": 5,+ "typ": 5.5,+ "max": 6,+ "conditions": "IUVP=0.6mA 注入 UVP 引脚",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "保护后抽取的下拉电流 IUVP(SNK)",+ "symbol": "IUVP(SNK)",+ "kind": "electrical",+ "unit": "uA",+ "min": 3.4,+ "typ": 4.4,+ "max": 5.4,+ "conditions": "VUVP=1.8V",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "EA 正端口基准电压 VREF(REG)",+ "symbol": "VREF(REG)",+ "kind": "electrical",+ "unit": "V",+ "min": 1.975,+ "typ": 2,+ "max": 2.025,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "最大占空比 DMAX",+ "symbol": "DMAX",+ "kind": "electrical",+ "unit": "%",+ "min": 75,+ "typ": 80,+ "max": 85,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "COM 引脚开路电压 VCOM(OPEN)",+ "symbol": "VCOM(OPEN)",+ "kind": "electrical",+ "unit": "V",+ "min": 5,+ "typ": 5.4,+ "max": 5.8,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "COM 脚短路电流 ICOM",+ "symbol": "ICOM",+ "kind": "electrical",+ "unit": "mA",+ "min": 0.6,+ "typ": 1.1,+ "max": 1.5,+ "conditions": "VCOM=0V",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "GATE 高电平压差 VGATEH (50mA 负载)",+ "symbol": "VGATEH",+ "kind": "electrical",+ "unit": "mV",+ "min": 185,+ "typ": null,+ "max": 400,+ "conditions": "IGATE=50mA",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "GATE 低电平电压 VGATEH (100mA 上拉)",+ "symbol": "VGATEH",+ "kind": "electrical",+ "unit": "mV",+ "min": 170,+ "typ": null,+ "max": 350,+ "conditions": "IGATE=-100mA",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "过温保护阈值 TSHDN",+ "symbol": "TSHDN",+ "kind": "thermal",+ "unit": "℃",+ "min": 148,+ "typ": 163,+ "max": 178,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "使能关断时输入电流 IVIN(SHDN)",+ "symbol": "IVIN(SHDN)",+ "kind": "electrical",+ "unit": "uA",+ "min": null,+ "typ": 0.1,+ "max": null,+ "conditions": "VUVP=0V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "输入欠压未关断时输入电流 IVIN(UVP)",+ "symbol": "IVIN(UVP)",+ "kind": "electrical",+ "unit": "uA",+ "min": null,+ "typ": 294,+ "max": null,+ "conditions": "VUVP=1.8V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VIN 到 VDD 的跌落电压 VDD(DO)",+ "symbol": "VDD(DO)",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 1.2,+ "max": null,+ "conditions": "IVDD(LOAD)=5mA,VIN=8V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "防倒灌二极管耐压 VBV(DIODE)",+ "symbol": "VBV(DIODE)",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 37,+ "max": null,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "VDD 过压时吸收电流 IDDSNK(OVP)",+ "symbol": "IDDSNK(OVP)",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": 6.6,+ "max": null,+ "conditions": "VDD= VDD（OVP）",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "电流限制比较延时 tCS(DLY)",+ "symbol": "tCS(DLY)",+ "kind": "timing",+ "unit": "nS",+ "min": null,+ "typ": 40,+ "max": null,+ "conditions": "CS 从 0 到 0.6V 开始计算，到 GATE 变为低电位",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "PWM 比较消隐时间 tLEB(CS)",+ "symbol": "tLEB(CS)",+ "kind": "timing",+ "unit": "nS",+ "min": null,+ "typ": 95,+ "max": null,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "增加斜坡补偿起始占空比 D",+ "symbol": "D",+ "kind": "electrical",+ "unit": "%",+ "min": null,+ "typ": 35,+ "max": null,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "自恢复保护模式休眠时间 TSLEEP(SR)",+ "symbol": "TSLEEP(SR)",+ "kind": "timing",+ "unit": "mS",+ "min": null,+ "typ": 800,+ "max": null,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "软启动泄放电阻 RSS(DIS)",+ "symbol": "RSS(DIS)",+ "kind": "electrical",+ "unit": "Ω",+ "min": null,+ "typ": 300,+ "max": null,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "EA 低频增益 AV",+ "symbol": "AV",+ "kind": "electrical",+ "unit": "V/V",+ "min": null,+ "typ": 1400,+ "max": null,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "FB 引脚输入电流 IFB (FB 作为反馈电压)",+ "symbol": "IFB",+ "kind": "electrical",+ "unit": "nA",+ "min": null,+ "typ": 40,+ "max": null,+ "conditions": "FB 引脚作为反馈电压时",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "FB 引脚输入电流 IFB (COM 作为反馈电压)",+ "symbol": "IFB",+ "kind": "electrical",+ "unit": "uA",+ "min": null,+ "typ": -20,+ "max": null,+ "conditions": "COM 引脚作为反馈电压时",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "采样延迟时间 TD(SAMP)",+ "symbol": "TD(SAMP)",+ "kind": "timing",+ "unit": "nS",+ "min": null,+ "typ": 252,+ "max": null,+ "conditions": "RT=22kΩ",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "COM 开环保护阈值电压 VCOM(OLP)",+ "symbol": "VCOM(OLP)",+ "kind": "electrical",+ "unit": "V",+ "min": 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