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PDF BD42540FJ-C Data sheet ( Hoja de datos )
| Número de pieza | BD42540FJ-C | |
| Descripción | 70 mA Output Voltage Tracker | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
Voltage Tracker
70 mA Output Voltage Tracker
BD42540FJ-C
General Description
The BD42540FJ-C is low quiescent regulator featuring
45 V absolute maximum voltage, and output voltage
tracking accuracy of ±10 mV, 70 mA output current and
40 µA (Typ) current consumption.
This tracker is therefore ideal for applications requiring a
direct connection to the battery and a low current
consumption.
Ceramic capacitors can be used for compensation of the
output capacitor phase. Furthermore, this IC also feature
overcurrent protection to protect the device from damage
caused by short-circuiting and an integrated thermal
shutdown to protect the device from overheating at
overload conditions.
Features
■ AEC-Q100 Qualified (Note 1)
■ Qualified for Automotive Applications
■ Wide Temperature Range (Tj): -40 °C to +150 °C
■ Wide Operating Input Range:
3 V to 42 V
■ Low Quiescent Current:
40 µA (Typ)
■ Output Voltage Tracking Accuracy:
±10 mV
■ Over Current Protection (OCP)
■ Thermal Shutdown Protection (TSD)
(Note 1: Grade 1)
Packages
■ FJ: SOP-J8
W (Typ) x D (Typ) x H (Max)
4.90 mm x 6.00 mm x 1.65 mm
Applications
■ Automotive
(Engine-ECU, Body, Air-Conditioner etc.)
Typical Application Circuits
■ Components externally connected: 1 µF ≤ CIN, 1 µF ≤ CO (Min)
Electrolytic, tantalum and ceramic capacitors can be used.
8:VCC 7:N.C.
6:GND 5:ADJ
/ EN
CIN BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
CO
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
1/22
TSZ02201-0G7G0AN00570-1-2
2.Jun.2016 Rev.001
1 page  
BD42540FJ-C
Thermal Resistance(Note 1)
Parameter
Symbol
Thermal Resistance (Typ)
1s(Note 3)
2s2p(Note 4)
Unit
SOP-J8
Junction to Ambient
θJA 155
87 °C/W
Junction to Top Characterization Parameter(Note 2)
ΨJT 15
13 °C/W
(Note 1)Based on JESD51-2A(Still-Air)
(Note 2)The thermal characterization parameter to report the difference between junction temperature and the temperature at the top center of the outside
surface of the component package.
(Note 3)Using a PCB board based on JESD51-3.
Layer Number of
Measurement Board
Material
Board Size
Single
FR-4
114.3mm x 76.2mm x 1.57mmt
Top
Copper Pattern
Footprints and Traces
Thickness
70μm
(Note 4)Using a PCB board based on JESD51-7.
Layer Number of
Measurement Board
Material
4 Layers
FR-4
Top
Copper Pattern
Footprints and Traces
Thickness
70μm
Board Size
114.3mm x 76.2mm x 1.6mmt
2 Internal Layers
Copper Pattern
74.2mm x 74.2mm
Thickness
35μm
Bottom
Copper Pattern
74.2mm x 74.2mm
Thickness
70μm
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/22
TSZ02201-0G7G0AN00570-1-2
2.Jun.2016 Rev.001
5 Page 
BD42540FJ-C
Measurement Circuit
A 8:VCC 7:N.C. 6:GND 5:ADJ
/ EN
1µF BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
V
1µF
Measurement Setup for
Figure 1, 3, 10
8:VCC 7:N.C.
6:GND 5:ADJ
/ EN
1µF BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
V
1µF Io
Measurement Setup for
Figure 2, 9
8:VCC 7:N.C.
6:GND 5:ADJ
/ EN
1µF BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
A
1µF Io
Measurement Setup for
Figure 4
8:VCC 7:N.C.
6:GND 5:ADJ
/ EN
1µF BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
1µF V
Measurement Setup for
Figure 5, 6, 12
8:VCC 7:N.C.
6:GND 5:ADJ
/ EN
1µF V
BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
A
1µF Io
Measurement Setup for
Figure 7
1Vrms
1µF
8:VCC 7:N.C.
6:GND 5:ADJ
/ EN
BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
1µF Io
Measurement Setup for
Figure 8
8:VCC 7:N.C.
6:GND 5:ADJ
/ EN
1µF BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
A
Io
1µF V
Measurement Setup for
Figure 11
A 8:VCC 7:N.C. 6:GND 5:ADJ
/ EN
1µF BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
1µF
Measurement Setup for
Figure 13, 14
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/22
8:VCC 7:N.C.
6:GND 5:ADJ
/ EN
1µF BD42540FJ-C
1:VO 2:N.C. 3:N.C. 4:N.C.
A
1µF V
Measurement Setup for
Figure 15, 16
TSZ02201-0G7G0AN00570-1-2
2.Jun.2016 Rev.001
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet BD42540FJ-C.PDF ] | |
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