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PDF S812C Data sheet ( Hoja de datos )
| Número de pieza | S812C | |
| Descripción | HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR | |
| Fabricantes | Seiko Instruments Inc | |
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Rev.1.0
HIGH OPERATING VOLTAGE
CMOS VOLTAGE REGULATOR
S-812C Series
The S-812C series is a family of high-voltage positive
regulators developed using CMOS technology. The
maximum operating voltage of 16V makes the S-812C
series best in high-voltage applications. Not only current
consumption is small but also power-off function is
included, the regulator is also suitable in constructing low-
power portable devices. Combination of power-off function
and short-current protection can be selected.
Features
Applications
• Low current consumption
• Power source for battery-powered devices
Operating current: Typ. 1.0 µA, Max. 1.8 µA (3.0 V)
• Output voltage: 2.0 to 6.0 V (0.1 V step)
• Power source for personal communication
devices
• Output voltage accuracy: ±2.0%
• Power source for home electric/electronic
• Output current:
50mA capable (3.0 V output product, VIN=5 V) Note1
75mA capable (5.0 V output product, VIN=7 V) Note1
appliances
• Dropout voltage
Typ. 120 mV (VOUT = 5.0 V, IOUT = 10 mA)
• Power-off function: Polarity for power-off switch or removal of the power-off function can be selected.
• Short-circuit protection: Product with/without short-circuit protection is available.
Short-circuited current : 40 mA typ. for products with protection
• Packages: SOT-23-5 (Package drawing code : MP005-A)
SOT-89-5 (Package drawing code : UP003-A)
SOT-89-3 (Package drawing code : UP005-A)
TO-92 (Package drawing code : YF003-A)
Note1 Power dissipation of the package should be taken into account when the output current is large.
Block Diagram
(1) Product without power-off function
VIN (1)
(2) Product with power-off function
VOUT
VIN
(1)
VOUT
(2)
Short-circuit
protection
ON/OFF
(2)
Short-circuit
protection
Reference
voltage
Reference
voltage
VSS (1) : Parasitic diode
VSS (1) : Parasitic diode
(2) : In case of a product with short-circuit protection
(2) : In case of a product with short-circuit protection
Figure 1 Block Diagram
Seiko Instruments Inc.
1
1 page  
Rev.1.0
HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR
S-812C Series
Electrical Characteristics
1. S-812C Series
Table 7 Electrical Characteristics
(Ta=25°C unless otherwise specified)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Test
circuits
Output voltage
1) VOUT(E) VIN=VOUT(S)+2V, IOUT=10mA
VOUT(S)× VOUT(S) VOUT(S)
0.98 × 1.02
V
1
Output current
2) IOUT VOUT(S)+2V2.0V ≤ VOUT(S) ≤ 2.9V 30 − − mA 3
≤ VIN≤16V 3.0V ≤ VOUT(S) ≤ 3.9V 50 − − mA 3
4.0V ≤ VOUT(S) ≤ 4.9V 65 − − mA 3
5.0V ≤ VOUT(S) ≤ 5.9V 75 − − mA 3
Dropout voltage
3)
Vdrop IOUT =
2.0V ≤ VOUT(S) ≤ 2.4V
−
0.46 0.95 V
1
10mA
2.5V ≤ VOUT(S) ≤ 2.9V
−
0.32 0.68 V
1
3.0V ≤ VOUT(S) ≤ 3.4V
−
0.23 0.41 V
1
3.5V ≤ VOUT(S) ≤ 3.9V
−
0.19 0.35 V
1
4.0V ≤ VOUT(S) ≤ 4.4V
−
0.16 0.30 V
1
4.5V ≤ VOUT(S) ≤ 4.9V
−
0.14 0.27 V
1
5.0V ≤ VOUT(S) ≤ 5.4V
−
0.12 0.25 V
1
5.5V ≤ VOUT(S) ≤ 6.0V
−
0.11 0.23 V
1
Line regulation 1
∆ VOUT11 VOUT(S) + 1 V ≤ VIN ≤ 16 V,
− 5 20 mV 1
IOUT = 1mA
Line regulation 2
∆ VOUT21 VOUT(S) + 1 V ≤ VIN ≤ 16 V,
IOUT = 1µA
− 5 20 mV 1
Load regulation
∆ VOUT31 VIN=
2.0V ≤ VOUT(S) ≤ 2.9V,
VOUT(S)+ 2 V 1µA ≤ IOUT ≤ 20mA
−
6 30 mV 1
3.0V ≤ VOUT(S) ≤ 3.9V,
1µA ≤ IOUT ≤ 30mA
−
10 45 mV 1
4.0V ≤ VOUT(S) ≤ 4.9V,
1µA ≤ IOUT ≤ 40mA
−
13 65 mV 1
5.0V ≤ VOUT(S) ≤ 5.9V,
1µA ≤ IOUT ≤ 50mA
−
17 80 mV 1
Output voltage temperature
∆VOUT 1 VIN = VOUT(S) + 1 V, IOUT = 10mA
coefficient
4) ∆Ta • VOUT -40°C ≤ Ta ≤ 85°C
±100 − ppm 1
/°C
Current consumption
ISS VIN =
2.0V ≤ VOUT(S) ≤ 2.7V −
0.9 1.6 µA
2
VOUT(S)+2V, 2.8V ≤ VOUT(S) ≤ 3.7V
1.0 1.8 µA
2
no load
3.8V ≤ VOUT(S) ≤ 5.1V
1.2 2.1 µA
2
5.2V ≤ VOUT(S) ≤ 6.0V
1.5 2.5 µA
2
Input voltage
VIN
− − 16 V 1
Applied to products with Power-off Function
Current consumption at power- ISS2 VIN = VOUT(S) + 2V,
−
0.1 0.5 µA
2
off VON/OFF = 0V, no load
ON/OFF pin
VSH VIN = VOUT(S) + 2V, RL = 1kχ,
2.0 −
− V4
Input voltage for high level
judged by VOUT output level
ON/OFF pin
VSL VIN = VOUT(S) + 2V, RL = 1kΩ,
− − 0.4 V 4
Input voltage for low level
judged by VOUT output level
ON/OFF pin
ISH VIN=VOUT(S) + 2V,
− − 0.1 µA 4
Input current at high level
VON/OFF = 7V
ON/OFF pin
ISL VIN=VOUT(S) + 2V,
− − -0.1 µA 4
Input current at low level
VON/OFF = 0V
Applied to products with Short-circuit Protection
Short-circuit current
IOS VIN = VOUT(S) + 2 V,
− 40 − mA 3
VOUT pin = 0 V
1) VOUT(S)=Specified output voltage
VOUT(E)=Effective output voltage, i.e., the output voltage when fixing IOUT(=10 mA) and inputting VOUT(S)+2.0 V.
2) Output current at which output voltage becomes 95% of VOUT(E) after gradually increasing output current.
3) Vdrop = VIN1-(VOUT(E) × 0.98), where VIN1 is the Input voltage at which output voltage becomes 98% of VOUT(E) after
gradually decreasing input voltage.
4) Temperature change ratio for the output voltage [mV/°C] is calculated using the following equation.
∆VOUT
∆Ta
[mV/° C]
=
VOUT(S)[V]
×
∆VOUT
∆Ta • VOUT
[ppm/° C]
÷ 1000
Temperature change ratio for output voltage Specified output voltage Output voltage temperature coefficient
Seiko Instruments Inc.
5
5 Page 
Rev.1.0
HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR
S-812C Series
Typical Characteristics
(1) Output Voltage vs Output Current (When load current increases)
S-812C20B (Ta=25°C) Short- circuit protection
2.5
VIN=2.5V
2.0
7V 5V
1.5
1.0
0.5 3V
4V
S-812C30B (Ta=25°C) Short-circuit protection
3.5
3.0
2.5 8V
2.0
1.5 VIN=3.5V
1.0
4V
0.5
6V
5V
0.0
0
50 100
IOUT (mA)
150
0.0
0
50 100 150
IOUT (mA)
200
S-812C50B (Ta=25°C) Short-circuit protection
6.0
10V
5.0
4.0
3.0 VIN=5.5V
2.0 6V
1.0
8V
7V
0.0
0
100 200
IOUT (mA)
300
Notice
The condition for input voltage and load current
should not exceed the package power dissipation.
S-812C20A (Ta=25 ºC)
2.5
VIN=2.3V
2.0
No short-circuit protection
1.5
1.0 2.5V
7V
4V 5V
0.5 3V
0.0
0
100 200
IOUT (mA)
300
S-812C30A (Ta=25ºC)
3.5
VIN=3.3V
3.0
No short-circuit protection
2.5
2.0 8V
1.5 3.5V
1.0 4V 5V 6V
0.5
0.0
0
100 200
IOUT (mA)
300
400
S-812C50A (Ta=25ºC)
6.0
No short-circuit protection
5.0
4.0
3.0
2.0
1.0
0.0
0
VIN=5.3V
5.5V
10V
8V
6V 7V
100 200 300
IOUT (mA)
400
Notice
The condition for input voltage and load current
should not exceed the package power dissipation.
Seiko Instruments Inc.
11
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet S812C.PDF ] | |
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