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PDF NJM2810 Data sheet ( Hoja de datos )
| Número de pieza | NJM2810 | |
| Descripción | 2ch Low Dropout Voltage Regulator with Reset | |
| Fabricantes | JRC | |
| Logotipo |  |
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NJM2810
2ch Low Dropout Voltage Regulator with Reset
GENERAL DISCRIPTION
The NJM2810 is a 2ch low dropout voltage regulator
with reset function.
It provides up to 150mA/100mA as output current, and
the reset function monitors individual voltage through VDET
terminal with 1% accuracy.
It is suitable for local power supply for small micro
controller and other logic applications.
PACKAGE OUTLINE
NJM2810RB1
FEATURES
<Regulator Block>
Output Current
CH1 = 150mA max.
CH2 = 100mA max.
Output Voltage Accuracy Vo1/Vo2 = ±1.0%
Ripple Rejection
75dB typ. (f=1kHz.Vo=3V Version)
ON/OFF Control (CH1 Only)
Internal Thermal Overload Protection
Internal Short Circuit Current Limit
<Reset Block>
Reset Voltage Accuracy VRT = ±1.0%
Reset Hold Time
td=10mS±1.0mS
Individual Voltage Detection
Open Collector Output
<Others>
Bipolar Technology
Package Outline
TVSP-8
PIN CONFIGURATION
87 65
PIN FUNCTION
1. Cd
2. VOR
3. VDET
4. VIN
5. Vo1
6. Vo2
7. GND
8. CONTROL
12 34
NJM2810RB1
1 page  
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TEST CIRCUIT
NJM2810
VIN
RL
(100kΩ)
A
VDET
NJM2810
VOR
VIN 0.1µF
V
IOR
CONTROL
Cd
GND
VOR
V
VCONT
0.1µF
VO1
VO2
1.0µF *4
(Ceramic)
V
IO2 VO2
1.0µF *4
(Ceramic)
V
IO1 VO1
*4 : Vo ≤ 2.6V version : Co=2.2µF(Ceramic)
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TYPICAL CHARACTERISTICS (Regulator Block)
NJM2810_2.5V(1ch)3.3V(2ch)
Control Voltage vs. Temperature
2
@:VIN=4.3V
Io1=30mA
Co1=2.2µF(Ceramic)
1.5
1
0.5
0
-50 0 50 100 150
Temperature : Ta (oC)
NJM2810_2.5V(1ch)3.3V(2ch)
Quiescent Current vs. Temperature
500
400
300
200
100
0
-50
Iq1(1ch:ON)
Iq2(1ch:OFF)
@:VIN=4.3V
VDET=5.2V
Output : No load
Co1=2.2µF (Ceramic)
Co2=1.0µF(Ceramic)
0 50 100
Temperature : Ta (oC)
150
NJM2810_2.5V(1ch)3.3V(2ch)
Output Peak Current vs. Temperature
300
250
1ch
200
150
100
2ch
50
@:VIN=4.3V
Co1=2.2µF, Co2=1.0µF(Ceramic)
0
-50 0 50 100
Temperature : Ta (oC)
150
NJM2810
NJM2810_2.5V(1ch)3.3V(2ch)
Vdet pin Quiescent Current vs. Temparature
12
10
8
6
4
2
0
-50
@:VIN=4.3V
VDET=5.2V
Output : No load.
Co1=2.2µF(Ceramic)
Co2=1.0µF(Ceramic)
0 50 100
Temperature : Ta (oC)
150
NJM2810_2.5V(1ch)3.3V(2ch)
100 Short Circuit Current vs. Temperature
@: VIN=4.3V
Co1=2.2µF, Co2=1.0µF(Ceramic)
Output1 or 2 is short to ground.
80
60 1ch
40
20
0
-50
2ch
0 50 100
Temperature : Ta (oC)
150
NJM2810_2.5V(1ch)3.3V(2ch)
Line Regulation vs. Temperature
0.1
@:VIN=4.3-9.3V
Io1 , Io2=30mA
Co1=2.2µF , Co2=1.0µF(Ceramic)
0.05
1ch
0
-0.05
2ch
-0.1
-50
0 50 100
Temperature : Ta (oC)
150
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet NJM2810.PDF ] | |
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