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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)： | 2/12頁 |
| 文件大?。?/td> | 57K |
| 代理商： | UPD16901 |
2
μ
PD16901
ABSOLUTE MAXIMUM RATINGS (T
A
= 25 C unless specified otherwise)
Item
Symbol
Condition
Rating
Unit
Supply voltage
V
IN
7.0
V
Output voltage
V
SW
20
V
Total power dissipation
P
T
Note
0.9
W
Operating ambient temperature
T
A
–20 to 85
C
Storage temperature range
T
stg
–55 to +150
C
Note
When 90 mm
×
90 mm
×
1.6 mm thick glass epoxy board is mounted
RECOMMENDED OPERATING RANGE
Item
Symbol
MIN.
TYP.
MAX.
Unit
Supply voltage
V
DD
4.5
5.0
5.5
V
Charge pump capacitor
C1, C2
0.033
0.1
0.47
μ
F
Operating ambient temperature
T
A
0
70
C
ELECTRICAL SPECIFICATIONS (T
A
= 25 C, V
IN
= 5 V unless specified otherwise)
Item
Symbol
Condition
MIN.
TYP.
MAX.
Unit
(Oscillation block)
Oscillation frequency
f
OSC
R
T
= 68 k
153
167
181
kHz
On duty
DUTY
67
%
(Low voltage misoperation preventive circuit)
Operation start voltage
V
IN(start-up)
3.3
3.7
4.3
V
Operation stop voltage
V
IN(stop)
2.7
3.2
3.8
V
Hysteresis width
V
HYS
0.3
0.5
0.7
V
(Overcurrent detection block)
Overcurrent detection voltage
V
DET
270
300
330
mV
(On/off control block)
ON/OFF pin input voltage
V
IH
4.5 V
≤
V
IN
≤
5.5 V
V
IN
*0.7
V
V
IL
4.5 V
≤
V
IN
≤
5.5 V
V
IN
*0.3
V
ON/OFF pin input current
I
IL
ON/OFF pin voltage = 0
–20
–5
–1
μ
A
(Charge pump circuit)
Output voltage
V
CHG
4.5 V
≤
V
IN
≤
5.5 V
0 C
≤
T
A
≤
70 C
8.0
11
V
(Short-circuit protection circuit)
Timer latch pin output current
I
SCP
R
T
= 68 k
2.0
3.3
4.5
μ
A
Timer latch detection voltage
V
DETT
0.85
1.0
1.15
V
(Output block)
Output stage on resistance
R
DS(ON)
I
PK
= 0.5 A
0.3
0.5
Output stage leakage current
I
DSOFF
V
DS
= 20 V
1.0
μ
A
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