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參數(shù)資料
| 型號： | UPD16901 |
| 廠商： | NEC Corp. |
| 英文描述： | FLASH MEMORY VOLTAGE STEPUP DC/DC CONVERTER IC |
| 中文描述： | 快閃記憶體電壓句中的DC / DC轉(zhuǎn)換器集成電路 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 57K |
| 代理商： | UPD16901 |
7
μ
PD16901
STANDARD CONNECTION DIAGRAM
V
IN
C
DLY
C
1H
C
1L
C
2
FB
R
T
GND
C.S.
V
SW
F/F
Reference
voltage circuit
Startup
circuit
Timer latch short-circuit
protection circuit
Charge pump
circuit
Overcurrent
detection circuit
Oscillation
circuit
4.5 V to 5.5 V
ON/OFF
C
IN
+
+
33 F
0.1 F
C
T
C
1
0.1 F
C
2
0.1 F
68 k
0.3
R
CS
D
C
OUT
L
33 H
μ
β
SW
15 F
Remark
The circuit constants and circuit configuration in this connection diagram are shown for illustrative
purposes and not intended for volume production design.
ELECTRICAL SPECIFICATIONS
(as per standard connection diagram. T
A
= 25 C, V
IN
= 5 V, I
OUT
= 140 mA unless specified otherwise)
Item
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Output voltage
V
OUT
4.5 V
≤
V
IN
≤
5.5 V
0 mA
≤
I
O
≤
140 mA
0 C
≤
T
A
≤
60 C
11.52
12.00
12.48
V
Input stability
REG
IN
4.5 V
≤
V
IN
< 5.5 V
0.5
%/V
Load stability
REG
L
0 mA
≤
I
O
< 140 mA
0.004
%/mA
Conversion efficiency
η
83
%
Operating circuit current
I
CC
I
O
= 0
3.0
mA
Standby circuit current
I
CC(OFF)
ON/OFF pin voltage = 0
100
μ
A
Startup voltage
V
IN(start-up)
3.7
4.3
V
Remark
These specifications are reference values confirmed with the standard connection diagram (without
taking account of variations) and are not intended to guarantee the characteristics of the product as a
DC/DC converter.
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