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UPC1944GRのメーカーはNECです、この部品の機能は「ADJUSTABLE PRECISION SHUNT REGULATORS」です。 |
部品番号 | UPC1944GR |
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部品説明 | ADJUSTABLE PRECISION SHUNT REGULATORS | ||
メーカ | NEC | ||
ロゴ | |||
このページの下部にプレビューとUPC1944GRダウンロード(pdfファイル)リンクがあります。 Total 12 pages
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ PC1943,1944
ADJUSTABLE PRECISION SHUNT REGULATORS
DESCRIPTION
The µ PC1943,1944 are adjustable precision shunt regulators with guaranteed thermal stability. The output voltage can
be set to any value between reference voltage (1.26 V) and 24 V by two external resistors.
These ICs can apply to error amplifier of switching regulators.
FEATURES
• Low voltage operation and High accuracy.
• Adjustable output voltage by two external resistors.
• Pin compatible to µ PC1093.
VREF = 1.26 V ± 2.4 %
VREF ≤ VOUT ≤ 24 V
ORDERING INFORMATION
Part Number
Package
µ PC1943T
µ PC1944T
µ PC1944J
µ PC1944GR
Power mini mold (SOT-89)
Power mini mold (SOT-89)
3-pin plastic SIP (TO-92)
8-pin plastic SOP (5.72 mm (225))
BLOCK DIAGRAM
REF
K
A
PIN CONFIGURATION (Marking Side)
Power mini mold (SOT-89)
µ PC1943T
µ PC1944T
AA
123
REF A K
123
K A REF
3-pin plastic SIP (TO-92)
µ PC1944J
3-pin plastic SOP (5.72 mm (225))
µ PC1944GR
1 23
K1
NC 2
NC 3
NC 4
8 REF
7 NC
6A
5 NC
REF A K
A: Anode
K: Cathode
REF: Reference
NC: No Connection
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. G10239EJ3V0DS00 (3rd edition)
(Previous No. IC-3454)
Date Published March 2000 NS CP (K)
Printed in Japan
The mark shows major revised points.
©
1994, 2000
1 Page µ PC1943,1944
RECOMMENDED OPERATING CONDITIONS
Parameter
Cathode Voltage
Cathode Current
Total Power Dissipation µ PC1943T
µ PC1944T
µ PC1944J
µ PC1944GR
Operating Ambient Temperature
Operating Junction Temperature
Symbol
VKA
IK
PT
TA
TJ
Note with 16 cm2 × 0.7 mm ceramic substrate.
MIN.
VREF
1
−30
−30
TYP.
10
MAX.
24
30
45 (240Note)
45 (240Note)
83
57
+85
+100
Unit
V
mA
mW
mW
mW
mW
°C
°C
Caution The recommended operating range may be exceeded without causing any problems provided that the
absolute maximum ratings are not exceeded. However, if the device is operated in a way that exceeds
the recommended operating conditions, the margin between the actual conditions of use and the
absolute maximum ratings is small, and therefore thorough evaluation is necessary. The
recommended operating conditions do not imply that the device can be used with all values at their
maximum values.
ELECTRICAL CHARACTERISTICS (IK = 10 mA, TA = +25 °C, unless otherwise specified.)
Parameter
Reference Voltage
Reference Voltage Deviation
Over Temperature
Reference Voltage Deviation
Over Cathode Voltage
Reference Input Current
Reference Input Current Deviation
Over Temperature
Minimum Cathode Current
Off-state Cathode Current
Dynamic Impedance
Symbol
VREF
∆ VREF
Conditions
VKA = VREF
VKA = VREF, 0 °C ≤ TA ≤ 70 °C
∆ VREF/∆ VKA | VREF | ≤ VKA ≤ 5V
5 V ≤ VKA ≤ 24V
IREF VKA = VREF, R1 = 10 kΩ, R2 = ∞
∆ IREF
VKA = VREF, 0 °C ≤ TA ≤ 70 °C,
R1 = 10 kΩ, R2 = ∞
IKmin
VKA = VREF, ∆ VREF = 2 %
IKoff VKA = 24 V, VREF = 0 V
| ZKA |
VKA = VREF, f ≤ 1 kHz,
1 mA ≤ IK ≤ 30 mA
MIN.
1.23
TYP.
1.26
±5
MAX.
1.29
± 30
2.7
2.0
2.0 4.0
0.3 1.2
0.16
0.01
0.12
1.0
1.0
0.5
Unit
V
mV
mV/V
mV/V
µA
µA
mA
µA
Ω
Data Sheet G10239EJ3V0DS00
3
3Pages PACKAGE DRAWINGS
POWER MINI MOLD (SOT-89) (Unit: mm)
4.5±0.1
1.6±0.2
1.5±0.1
µ PC1943,1944
0.42±0.06
0.47
1.5 ±0.06
3.0
0.42±0.06
0.41+−00..0035
6 Data Sheet G10239EJ3V0DS00
6 Page | |||
ページ | 合計 : 12 ページ | ||
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PDF ダウンロード | [ UPC1944GR データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
UPC1944GR | ADJUSTABLE PRECISION SHUNT REGULATORS | NEC |