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PDF S-5470 Data sheet ( Hoja de datos )
| Número de pieza | S-5470 | |
| Descripción | ULTRA-LOW CURRENT CONSUMPTION PHOTOCURRENT DETECTION IC | |
| Fabricantes | Seiko Instruments | |
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S-5470 Series
www.sii-ic.com
© Seiko Instruments Inc., 2012
ULTRA-LOW CURRENT CONSUMPTION
PHOTOCURRENT DETECTION IC
Rev.1.2_00
The S-5470 Series, developed by CMOS technology, is a photocurrent detection IC with an ultra-low current consumption.
It detects 0.7 nA typ. photocurrent generated by an external photodiode (PD) or LED. It also has a function to detect the
difference of photocurrent level between two external photodiodes (PDs) or LEDs.
Due to its ultra-low current consumption and low-voltage operation, the S-5470 Series is suitable for battery-operated
small mobile device applications.
Features
• Ultra-low current consumption:
• Micro-photocurrent detection:
• Wide operation voltage range:
• Detection of certain photocurrent level:
IDD ≤ 0.1 nA typ.
IDET = 0.7 nA typ.
VDD = 0.9 V to 5.5 V
Detects certain level of photocurrent generated by external photodiode
(PD) or LED
• Detection of photocurrent level difference: Detects the difference of photocurrent level between external
• External parts:
• Lead-free (Sn 100%), halogen-free*2
photodiodes (PDs) or LEDs
One or two external photodiodes (PDs) or LEDs*1
*1. The required number of PDs or LEDs changes with operation.
Regarding selection of PD and LED, refer to "3. Selection of PD or LED" in " Application Circuits".
*2. Refer to " Product Name Structure" for details.
Applications
• Shading detection
• Light and darkness detection
• Non-contact switch for portable and wireless device
Package
• SOT-23-5
Seiko Instruments Inc.
1
1 page  
ULTRA-LOW CURRENT CONSUMPTION PHOTOCURRENT DETECTION IC
Rev.1.2_00
S-5470 Series
Absolute Maximum Ratings
Table 4
Item Symbol
Power supply voltage
Input voltage
Output voltage
CMOS output product
Nch open-drain output product
VDD
VINP, VINM
VOUT
Output pin current
Power dissipation
Operation ambient temperature
Storage temperature
ISOURCE
ISINK
PD
Topr
Tstg
*1. When mounted on board
[Mounted board]
(1) Board size: 114.3 mm × 76.2 mm × t1.6 mm
(2) Name: JEDEC STANDARD51-7
(Ta = +25°C unless otherwise specified)
Absolute Maximum Rating
Unit
VSS − 0.3 to VSS + 7.0
VSS − 0.3 to VSS + 7.0
VSS − 0.3 to VDD + 0.3
VSS − 0.3 to VSS + 7.0
20
V
V
V
V
mA
20
600*1
mA
mW
−40 to +85
°C
−55 to +125
°C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
700
600
500
400
300
200
100
0
0
50 100 150
Ambient Temperature (Ta) [°C]
Figure 4 Power Dissipation of Package (When Mounted on Board)
Seiko Instruments Inc.
5
5 Page 
ULTRA-LOW CURRENT CONSUMPTION PHOTOCURRENT DETECTION IC
Rev.1.2_00
S-5470 Series
3. Temperature characteristics of detection current
The shaded area in Figure 17 shows the temperature characteristics of the detection voltage in the operation
temperature range.
IDET [nA]
+0.5%/°C
IDET25*1
−0.5%/°C
−40 +25
+85 Ta [°C]
*1. IDET25: Detection current value at Ta = +25°C
Figure 17 Temperature Characteristics of Detection Current
Seiko Instruments Inc.
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet S-5470.PDF ] | |
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