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參數(shù)資料
| 型號： | TK65221M |
| 廠商： | TOKO INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| 中文描述： | SWITCHING REGULATOR, PDSO6 |
| 封裝： | SOT-23L, SMT-6 |
| 文件頁數(shù)： | 18/20頁 |
| 文件大小： | 141K |
| 代理商： | TK65221M |
ADVANCED INFORMATION
Page 18
January 1999 TOKO, Inc.
TK652xx
STEP-DOWN CONVERTER APPLICATION (CONT.)
2) Now, after selecting the R
1
and R
2
values, check that the V
IN
is below V
REG
for the maximum V
BATT
. For NiMH cells
max V
BATT
= 5.2 V and the TK65221 V
IN
> V
REG
= 2.1 V, using the first equation.
is:
yes: 1.33 V < 2.1 V
Below are the resistor values for the three battery cases listed in “Where to use the TK652xx Step-Down Converter”
section.
Type Battery
Li-ion
NiMH
NiMH
# of Cells
2
4
6
VBATT Range VREG
5.4 to 8.4 V
4.4 to 5.2 V
6.6 to 7.8 V
R1 VALUE ~R2 VALUE VIN CHECK
10 K
3.01 K 1.79 V < 2.1
10 K
3.97 K 1.33 V < 2.1
10 K
2.34 K 1.33 V < 2.1
2.1 V
2.1 V
2.1 V
10 k + 3.97 k
5.2 V x 3.97 k
2.1V >
- 10 k x 15
μ
A
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| TK65221MTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| TK65221MTL/21M | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| TK65224 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| TK65224M | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| TK65224MTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
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