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Número de pieza | S-19254xxxH | |
Descripción | CMOS VOLTAGE REGULATOR | |
Fabricantes | Seiko | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de S-19254xxxH (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! S-19254xxxH Series
www.sii-ic.com
FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT
CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
© SII Semiconductor Corporation, 2016
Rev.1.0_00
The S-19254xxxH Series developed by using high-withstand voltage CMOS process technology, is a positive voltage
regulator with high-accuracy output voltage and high output current.
A built-in overcurrent protection circuit to limit overcurrent of the output transistor and a built-in thermal shutdown circuit to
limit heat are included. Also, the S-19254xxxH Series includes the soft-start function to adjust the output voltage rising
time at power-on or at the time when the ON / OFF pin is set to ON.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in
the purpose, contact to SII Semiconductor Corporation is indispensable.
Features
• Output voltage:
• Input voltage:
• Output voltage accuracy:
• Dropout voltage:
• Current consumption:
• Output current:
• Ripple rejection:
• Built-in overcurrent protection circuit:
• Built-in thermal shutdown circuit:
• Built-in soft-start circuit:
• Built-in ON / OFF circuit:
• Built-in discharge shunt circuit:
• Operation temperature range:
• Lead-free (Sn 100%), halogen-free
• AEC-Q100 in process*2
1.0 V to 5.5 V, selectable in 0.05 V step
2.5 V to 6.5 V
±3.0% (Tj = −40°C to +105°C)
0.38 V typ. (2.6 V output product, at IOUT = 1000 mA)
During operation: 120 μA typ., 150 μA max. (Tj = −40°C to +105°C)
During power-off: 0.1 μA typ., 4.5 μA max. (Tj = −40°C to +105°C)
Possible to output 1000 mA (at VIN ≥ VOUT(S) + 1.0 V)*1
60 dB typ. (at f = 1.0 kHz)
Limits overcurrent of output transistor.
Detection temperature 170°C typ.
Adjusts output voltage rising time at power-on or at the time when
ON / OFF pin is set to ON.
Adjustable type: tSS = 6.0 ms typ. (CSS = 10 nF)
Soft-start time can be changed by the capacitor (CSS).
Ensures long battery life.
Discharges the electric charge of the output capacitor during power-off.
Ta = −40°C to +105°C
*1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.
*2. Contact our sales office for details.
Applications
• Constant-voltage power supply for electrical application for vehicle interior
• Constant-voltage power supply for home electric appliance
• For automotive use (accessory, car navigation system, car audio system, etc.)
Package
• HSOP-8A
1
1 page FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19254xxxH Series
Absolute Maximum Ratings
Table 4
(Ta = +25°C unless otherwise specified)
Item
Symbol
Absolute Maximum Rating
Unit
VIN
VSS − 0.3 to VSS + 7
V
Input voltage
VON / OFF
VSS − 0.3 to VIN + 0.3 ≤ VSS + 7
V
Output voltage
VSSC
VOUT
VSS − 0.3 to VIN + 0.3 ≤ VSS + 7
VSS − 0.3 to VIN + 0.3 ≤ VSS + 7
V
V
Output current
IOUT
1100
mA
Junction temperature
Tj
−40 to +150
°C
Operation ambient temperature Topr
−40 to +105
°C
Storage temperature
Tstg
−40 to +150
°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.
Thermal Resistance Value
Table 5
Item
Symbol
Condition
Board A
Junction-to-ambient thermal resistance*1 θja
HSOP-8A
Board B
Board C
Board D
Board E
*1. Test environment: compliance with JEDEC STANDARD JESD51-2A
Remark Refer to " Power Dissipation" and "Test Board" for details.
Min. Typ. Max. Unit
− 104 − °C/W
− 74 − °C/W
− 39 − °C/W
− 37 − °C/W
− 31 − °C/W
5
5 Page FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19254xxxH Series
Explanation of Terms
1. Low dropout voltage regulator
This is a voltage regulator which made dropout voltage small by its built-in low on-resistance output transistor.
2. Output voltage (VOUT)
This voltage is output at an accuracy of ±3.0% when the input voltage, the output current and the temperature are
in a certain condition*1.
*1. Differs depending on the product.
Caution If the certain condition is not satisfied, the output voltage may exceed the accuracy range of ±3.0%.
Refer to " Electrical Characteristics" and " Characteristics (Typical Data)" for details.
3.
Line regulation
ΔVOUT1
ΔVIN • VOUT
Indicates the dependency of the output voltage against the input voltage. That is, the value shows how much the
output voltage changes due to a change in the input voltage after fixing output current constant.
4. Load regulation (ΔVOUT2)
Indicates the dependency of the output voltage against the output current. That is, the value shows how much the
output voltage changes due to a change in the output current after fixing input voltage constant.
5. Dropout voltage (Vdrop)
Indicates the difference between input voltage (VIN1) and the output voltage when the output voltage becomes 98%
of the output voltage value (VOUT3) at VIN = VOUT(S) + 1.0 V after the input voltage (VIN) is decreased gradually.
Vdrop = VIN1 − (VOUT3 × 0.98)
11
11 Page |
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