ZHCSLX0A June 2020 – September 2020 TPS23734
PRODUCTION DATA
参数 | 测试条件 | 最小值 | 典型值 | 最大值 | 单位 | ||
---|---|---|---|---|---|---|---|
直流/直流电源 (VCC) | |||||||
VCUVLO_R | 欠压锁定 | VVCC 上升 | 8 | 8.25 | 8.5 | V | |
VCUVLO_F | VVCC 下降,VFB = VRTN | 5.85 | 6.1 | 6.35 | V | ||
VCUVLO_H | 迟滞(1) | 2 | 2.15 | 2.3 | V | ||
IRUN | 工作 电流 | VVCC = 10V,VFB = VRTN,RDT = 24.9kΩ,带 2kΩ 负载的 CP 上拉至 30V | 1.4 | 2 | 2.4 | mA | |
IVC_ST | 启动源电流 | VAPD = 2.5V | |||||
VVDD ≥ 28V,VVCC = 11.7V | 21.5 | 30 | 34 | mA | |||
VVDD = 10.2V,VVCC = 8.6V | 1 | 6 | 17.5 | ||||
VVDD = 10.2V,VVCC = 6.8V | 8 | 16 | 32 | ||||
tST | 启动时间,CVCC = 1μF | VVDD = 10.2V,VVCC(0) = 0V,测量时间直至 VCUVLO_R | 0.25 | 0.7 | 1.15 | ms | |
VVDD = 35V,VVCC(0) = 0V,测量时间直至 VCUVLO_R | 0.24 | 0.35 | 0.48 | ms | |||
VVC_ST | VCC 启动电压 | 测量启动期间的 VVCC,IVCC = 0mA | 11 | 12.5 | 14 | V | |
测量启动期间的 VVCC,IVCC = 21.5mA | 11 | 12.5 | 14 | ||||
VVC_SSTP | VCC 软停止电压 | VLINEUV < VLIUVF,测量软停止期间的 VVCC,IVCC = 0mA | 11 | 12.5 | 14 | V | |
VLINEUV < VLIUVF,测量软停止期间的 VVCC,IVCC = 21.5mA | 11 | 12.5 | 14 | ||||
VB | |||||||
电压 | VFB = VRTN,8.5V ≤ VVCC ≤ 16V,0 ≤ IVB ≤ 5mA | 4.75 | 5.0 | 5.25 | V | ||
直流/直流定时 (FRS) | |||||||
fSW | 开关频率 | VFB = VRTN,在栅极测量 | 223 | 248 | 273 | kHz | |
DMAX | 占空比 | VFB = VRTN,RDT = 24.9kΩ,在栅极测量 | 74.5% | 78.5% | 82.5% | ||
VSYNC | 同步 | 输入阈值 | 2 | 2.2 | 2.4 | V | |
频率抖动斜坡发生器 (DTHR) | |||||||
IDTRCH | 充电电流(拉电流) | 0.5V < VDTHR < 1.5V | 3 x IFRS | µA | |||
47.2 | 49.6 | 52.1 | µA | ||||
IDTRDC | 放电电流(灌电流) | 0.5V < VDTHR < 1.5V | 3 x IFRS | µA | |||
47.2 | 49.6 | 52.1 | µA | ||||
VDTUT | 抖动上限阈值 | VDTHR 上升,直至 IDTHR > 0 | 1.41 | 1.513 | 1.60 | V | |
VDTLT | 抖动下限阈值 | VDTHR 下降,直至 IDTHR < 0 | 0.43 | 0.487 | 0.54 | V | |
VDTPP | 抖动峰至峰幅度 | 1.005 | 1.026 | 1.046 | V | ||
误差信号放大器 (FB, COMP) | |||||||
VREFC | 反馈调整电压 | 1.723 | 1.75 | 1.777 | V | ||
IFB_LK | FB 泄漏电流(拉电流或灌电流) | VFB = 1.75V | 0.5 | μA | |||
GBW | 小信号单位带宽增益积 | 0.9 | 1.2 | MHz | |||
AOL | 开放式环路电压增益 | 70 | 80 | db | |||
VZDC | 0% 占空比阈值 | VCOMP 下降,直至栅极开关停止 | 1.35 | 1.5 | 1.65 | V | |
ICOMPH | COMP 输出驱动电流 | VFB = VRTN,VCOMP = 3V | 1 | mA | |||
ICOMPL | COMP 灌电流 | VFB = VVB,VCOMP = 1.25V | 2.1 | 6 | mA | ||
VCOMPH | COMP 高电压 | VFB = VRTN,从 COMP 到 RTN 负载为 15kΩ | 4 | VB | V | ||
VCOMPL | COMP 低电压 | VFB = VVB,从 COMP 到 VB 负载为 15kΩ | 1.1 | V | |||
COMP 输入电阻,禁用误差放大器 | EA_DIS 保持断开 | 70 | 100 | 130 | kΩ, | ||
COMP 至 CS 增益 | ΔVCS/ΔVCOMP,0V < VCS < 0.22V | 0.19 | 0.2 | 0.21 | V/V | ||
软启动,软停止(SST,I_STP) | |||||||
ISSC | 充电电流 | SST 充电,6.35V ≤ VVCC ≤ 16V | 7.5 | 10 | 12.5 | µA | |
ISSD | 放电电流 | SST 放电,6.35V ≤ VVCC ≤ 16V | 3 | 4 | 5 | µA | |
VSFST | 软启动下限阈值 | 0.15 | 0.2 | 0.25 | V | ||
VSTUOF | 启动关闭阈值 | VSST 上升,直至 VCC 启动关闭 | 1.99 | 2.1 | 2.21 | V | |
VSSOFS | 软启动失调电压,闭环模式 | VFB = VRTN,VSST 上升,直至开关启动 | 0.2 | 0.25 | 0.3 | V | |
软启动失调电压,峰值电流模式 | VCOMP = VVB,VSST 上升,直至开关启动,EA_DIS 保持断开 | 0.55 | 0.6 | 0.65 | V | ||
VSSCL | 软启动钳位 | 2.3 | 2.6 | V | |||
ISSD_SP | 软停止模式下的 SST 放电电流 | RI_STP = 499kΩ,VLINEUV < VLIUVF | 1.5 | 2 | 2.5 | µA | |
RI_STP = 16.5kΩ,,VLINEUV < VLIUVF | 52.5 | 60.6 | 67.5 | ||||
VSSTPEND | 软停止结束阈值 | VFB = VRTN,VLINEUV < VLIUVF | 0.15 | 0.2 | 0.25 | V | |
电流感应 (CS) | |||||||
VCSMAX | 最大阈值电压 | VFB = VRTN,VCS 上升 | 0.227 | 0.25 | 0.273 | V | |
tOFFD_IL | 电流限制关断延迟 | VCS = 0.3V | 25 | 41 | 60 | ns | |
tOFFD_PW | PWM 比较器关断延迟 | VCS = 0.15V,EA_DIS 保持断开,VCOMP = 2V | 25 | 41 | 60 | ns | |
消隐延迟 | 除了 tOFFD_IL 和 tOFFD_PW | 75 | 95 | 115 | ns | ||
VSLOPE | 内部斜坡补偿电压 | VFB = VRTN,最大占空比时的峰值电压,称作 CS | 51 | 66 | 79 | mV | |
ISL_EX | 峰值斜坡补偿电流 | VFB = VRTN,最大占空比时的 ICS(交流分量) | 14 | 20 | 26 | μA | |
偏置电流 | CS 电流的直流分量 | -3 | -2 | -1 | μA | ||
线路欠压,软停止 (LINEUV) | |||||||
VLIUVF | LINEUV 下降阈值电压 | VLINEUV 下降 | 2.86 | 2.918 | 2.976 | V | |
VLIUVH | 迟滞(1) | 57 | 82 | 107 | mV | ||
泄漏电流 | VLINEUV = 3V | 1 | µA | ||||
死区时间 (DT) | |||||||
tDT1 | 死区时间 | RDT = 24.9kΩ,GAT2 ↑ 至栅极 ↑ | VFB = VRTN,VPSRS = 0V,EA_DIS 保持断开,VCOMP = VVB,CGATE = 1nF,CGAT2 = 0.5nF, VVCC = 10V |
40 | 50 | 62.5 | ns |
tDT2 | RDT = 24.9kΩ,GATE ↓ 至 GAT2 ↓ | 40 | 50 | 62.5 | |||
tDT1 | RDT = 75kΩ,GAT2 ↑ 至 GATE ↑ | 120 | 150 | 188 | |||
tDT2 | RDT = 75kΩ,GATE ↓ 至 GAT2 ↓ | 120 | 150 | 188 | |||
GATE | |||||||
峰值拉电流 | VFB = VRTN,VVCC = 10V,VGATE = 0V,脉冲测量 | 0.3 | 0.5 | 0.8 | A | ||
峰值灌电流 | VFB = VRTN,VVCC = 10V,VGATE = 10V,脉冲测量 | 0.6 | 0.9 | 1.45 | A | ||
上升时间(2) | tprr10-90,CGATE = 1nF,VVCC = 10V | 30 | ns | ||||
下降时间(2) | tpff90-10,CGATE = 1nF,VVCC = 10V | 15 | ns | ||||
GAT2 | |||||||
峰值拉电流 | VFB = VRTN,VVCC = 10V,RDT = 24.9kΩ,VGAT2 = 0V,脉冲测量 | 0.3 | 0.5 | 0.8 | A | ||
峰值灌电流 | VFB = VRTN,VVCC = 10V,RDT = 24.9kΩ,VGAT2 = 10V,脉冲测量 | 0.3 | 0.45 | 0.72 | A | ||
上升时间(2) | tprr10-90,CGAT2 = 0.5nF,VVCC = 10V | 15 | ns | ||||
下降时间(2) | tpff90-10,CGAT2 = 0.5nF,VVCC = 10V | 15 | ns | ||||
钳位 FET (CP) | |||||||
RDS(ON)CL | CP FET 导通电阻 | ICP = 100mA | 1.5 | 3.3 | Ω | ||
钳位二极管 (CP) | |||||||
VFCP | CP 二极管正向电压 | VPSRS = 0V,ICP = 15mA | 0.45 | 0.6 | 0.85 | V | |
CP 泄漏电流 | VPSRS = 0V,VCP = 45V | 20 | µA | ||||
辅助电源检测(APD,APDO) | |||||||
VAPDEN | APD 阈值电压 | VAPD 上升, | 1.42 | 1.5 | 1.58 | V | |
VAPDH | 迟滞(1) | 0.075 | 0.095 | 0.115 | V | ||
泄漏电流 | VAPD = 5V | 1 | µA | ||||
VAPL | APDO 输出低电压 | VAPD = 5V,IAPDO = 1mA,启动完成之后 | 0.27 | 0.5 | V | ||
泄漏电流 | VAPDO = 10V | 1 | µA | ||||
热关断 | |||||||
关断温度 | 145 | 155 | 165 | °C | |||
迟滞(2) | 15 | °C |