BD6062GU_11 ROHM [Rohm], BD6062GU_11 Datasheet - Page 13

• Manufacturer Part Number: BD6062GU_11
• Description: Chopper type for Flash
• Manufacturer: ROHM [Rohm]

●Recommended layout pattern
●Notes for use
© 2011 ROHM Co., Ltd. All rights reserved.
www.rohm.com
BD6062GU
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( 2 )
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( 5 )
An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc.,
can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If
any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical
safety measures including the use of fuses, etc.
These conditions represent a range within which characteristics can be provided approximately as expected. The
electrical characteristics are guaranteed under the conditions of each parameter.
The reverse connection of power supply connector can break down ICs. Take protective measures against the
breakdown due to the reverse connection, such as mounting an external diode between the power supply and the IC’s
power supply terminal.
Design PCB pattern to provide low impedance for the wiring between the power supply and the GND lines. In this
regard, for the digital block power supply and the analog block power supply, even though these power supplies has
the same level of potential, separate the power supply pattern for the digital block from that for the analog block, thus
suppressing the diffraction of digital noises to the analog block power supply resulting from impedance common to the
wiring patterns. For the GND line, give consideration to design the patterns in a similar manner.
Furthermore, for all power supply terminals to ICs, mount a capacitor between the power supply and the GND terminal.
At the same time, in order to use an electrolytic capacitor, thoroughly check to be sure the characteristics of the
capacitor to be used present no problem including the occurrence of capacity dropout at a low temperature, thus
determining the constant.
Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state.
Furthermore, check to be sure no terminals are at a potential lower than the GND voltage including an actual electric
transient.
Absolute Maximum Ratings
Operating conditions
Reverse connection of power supply connector
Power supply line
GND voltage
+
LED
Fig.34 Frontal surface (TOP VIEW)
Fig.36 Middle surface2 (TOP VIEW)
BD6062GU
R2
R1
CIN
A1
GND
+
VBAT
D1
L1
COUT
13/15
Fig.35 Middle surface1 (TOP VIEW)
Fig.37 Rear surface (TOP VIEW)
Technical Note
2011.05 - Rev.B