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UPC1934 Datasheet(PDF) 8 Page - NEC

Part # UPC1934
Description  DC-DC CONVERTER CONTROL IC
PDF  20 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPC1934 Datasheet(HTML) 8 Page - NEC

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Data Sheet G13567EJ3V0DS00
8
µµµµ PC1934
Typical Characteristic Curves (unless otherwise specified, VCC = 3 V, fOSC = 100 kHz, TA = 25
°°°°C) (Nominal)
VREF vs VCC
2.5
2.0
1.5
1.0
0.5
01
2
3
4
5
Supply voltage VCC (V)
IREF = 0 A
PT vs TA
0.5
0.4
0.3
0.2
0.1
0
25
50
75
100
125
150
Operating ambient temperature TA (
°C)
300
°C/W
PC1934GR-1JG
µ
312.5
°C/W
PC1934GR-PJG
µ
VREF vs TA
2.13
2.12
2.11
2.10
2.08
2.07
2.09
–25
0
25
50
75
100
IREF = 0 A
Operating ambient temperature TA (
°C)
fOSC vs RT
1000
100
10
1
10
1000
100
Timing resistance RT (k
Ω)
CT = 150 pF
CT = 1500 pF
CT = 330 pF
∆fOSC vs TA
6
4
2
0
–2
–4
–6
0
–25
25
50
75
100
RT = 10 k
Ω
CT = 330 pF
Operating ambient temperature TA (
°C)
VOL vs TA
0.5
0.4
0.3
0.2
0.1
0
0
–25
25
75
50
100
Operating ambient temperature TA (
°C)
IO = 20 mA



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