Datasheet > BP45F0044

BP45F0044

更新时间： 2024-04-09 19:03:10

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		无线
页数	文件大小	规格书
77页	1261K
描述
Wireless Charger Flash MCU

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BP45F0044 数据手册

BP45F0044

Wireless Charger Flash MCU

2. The row below the 5V trim voltage row is provided to show the values for the full V_DDrange operating

voltage. It is recommended that the trim voltage is ﬁxed at 5V for application voltage ranges from 3.3V to 5.5V.

Low Speed Internal Oscillator – LIRC – Frequency Accuracy

Test Conditions

Symbol

Parameter

Min.

Typ.

Max.

Unit

V_DD

Temp.

25°C

25.6

12.8

—

38.4

41.6

f_LIRC

LIRC Frequency

kHz

3.3V~5.5V

—

-40°C~85°C

25°C

t_START

LIRC Start Up Time

—

100

μs

Operating Frequency Characteristic Curves

System Operating Frequency

16MHz

3.3V

5.5V

Operating Voltage

System Start Up Time Characteristics

Ta=-40°C~85°C

Min. Typ. Max. Unit

Test Conditions

Symbol

Parameter

System Start-up Time

V_DD

—

Conditions

f_SYS=f_H~f_H/64, f_H=f_HIRC

f_SYS=f_SUB=f_LIRC

—

t_SYS

Wake-up from Condition where f_SYSis oﬀ

—

f_SYS=f_H~f_H/64, f_H=f_HIRC

f_SYS=f_SUB=f_LIRC

System Start-up Time

Wake-up from Condition where f_SYSis on

t_SST

—

System Speed Switch Time

FAST to SLOW Mode or SLOW to FAST Mode

f_HIRCswitches from oﬀ

to on

—

t_HIRC

System Reset Delay Time

Reset Source from Power-on Reset or LVR

Hardware Reset

RR_POR=5V/ms

—

150

System Reset Delay Time

Reset Source from WDTC/LVRC Software Reset

t_RSTD

System Reset Delay Time

Reset Source from WDT Overﬂow

—

8.3 16.7 50.0 ms

45 90 375 μs

t_SRESET

Minimum Software Reset Width to Reset

Note: 1. For the System Start-up time values, whether f_SYSis on or oﬀ depends upon the mode type and the chosen

f_SYSsystem oscillator. Details are provided in the System Operating Modes section.

2. The time units, shown by the symbols, t_HIRC, etc., are the inverse of the corresponding frequency values as

provided in the frequency tables. For example t_HIRC=1/f_HIRC, t_SYS=1/f_SYS, etc.

3. If the LIRC is used as the system clock and if it is oﬀ when in the SLEEP Mode, then an additional LIRC start

up time, t_START, as provided in the LIRC frequency table, must be added to the t_SSTtime in the table above.

4. The System Speed Switch Time is eﬀectively the time taken for the newly activated oscillator to start up.

Rev. 1.00

March 17, 2020

1...7 8 91011 12 13...77

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