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PDF UPD16901GS Data sheet ( Hoja de datos )
| Número de pieza | UPD16901GS | |
| Descripción | FLASH MEMORY VOLTAGE STEPUP DC/DC CONVERTER IC | |
| Fabricantes | NEC | |
| Logotipo |  |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16901
FLASH MEMORY VOLTAGE STEPUP DC/DC CONVERTER IC
The µPD16901 is a DC/DC converter IC which produces a 12 V output from a 5 V input source. The integration
of a control circuit and power MOSFET in the output stage on a single-chip allows a power supply for flash memory
write and erasure to be configured with a reduced number of external components.
FEATURES
• With an on-chip output stage power MOSFET, fewer external components are needed.
• The ALLMOS structure achieves low power consumption.
• Internally set output voltage eliminates the need for adjustment.
• Output can be turned ON/OFF via an external signal.
• A timer latch type overcurrent protection circuit on chip
ORDERING INFORMATION
Part Number
µPD16901GS
Package
14-pin plastic SOP (300 mil)
BLOCK DIAGRAM
ON/OFF VIN
CDLY
C1H C1L C2
Reference
voltage circuit
Startup
circuit
Timer latch short-circuit
protection circuit
Charge pump
circuit
F/F
β
Oscillation
circuit
Overcurrent
detection circuit
SW
FB RT
GND
The information in this document is subject to change without notice.
Document No. S10643EJ2V0DS00 (2nd edition)
Date Published May 1997 N
Printed in Japan
VSW
C.S.
©
1997
1 page  
STANDARD CHARACTERISTIC CURVES
1.4
1.2
1.0
0.9 W
0.8
0.6
PT - TA characteristic
When mounted on
90 mm × 90 mm × 1.6 mm
glass epoxy board
139 ˚C/W
0.4
0.2
0
–20
85 ˚C
0 20 40 60 80 100
Ambient temperature TA (˚C)
ICC (ON) - VIN characteristic
3.5
TA = 85 ˚C
3.0
2.5
TA = 0 ˚C
TA = 25 ˚C
2.0
1.5
1.0
0.5
0
3.5
4.0 4.5 5.0 5.5 6.0
Input voltage VIN (V)
6.5
VDET - TA characteristic
340
VIN = 5 V
330
320
310
300
290
280
270
–20
0 20 40 60 80 100
Ambient temperature TA (˚C)
µPD16901
fOSC -VIN characteristic
180
TA = 25 ˚C
175
170
165
160
155
3.5
4.0 4.5 5.0 5.5 6.0
Input voltage VIN (V)
6.5
fOSC - TA characteristic
180
VIN = 5 V
175
170
165
160
155
150
145
–20
0 20 40 60 80 100
Ambient temperature TA (˚C)
1.12
1.1
VDETT - TA characteristic
VIN = 5 V
1.08
1.06
1.04
1.02
1.0
0.98
–20
0 20 40 60 80 100
Ambient temperature TA (˚C)
5
5 Page 
[MEMO]
µPD16901
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet UPD16901GS.PDF ] | |
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