BP5310A 데이터 시트보기 (PDF) - ROHM Semiconductor
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BP5310A Datasheet PDF : 6 Pages
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(2) Pull-down of VPP
VPP
BP5310A
BP5310A
1
2
3
4
+
C2
+
C3
7
8
9
Be sure to use
fuse for safety
+
VCC (5V)
C1
Fig.3
The OFF output is pulled down through an effective resistance of 30kW
ON / OFF CTL
Operation notes
(1) Place I / O external capacitors as near as possible to the connection pins. In particular, make sure to
minimize the impedance between the input-side capacitor (C1) and pin 9. (Reference Value : A length less
than 50mm for a copperfoil of 1.0mm wide and 35µm thickness.)
(2) Avoid frequent switching using the ON / OFF CTL pin (five times per second at the maximum).
(3) The module has a built-in shorted-circuit protection circuit. Shorted-circuiting is assumed if the output
voltage does not reach 4.2V (typical) in 40ms (typical), and the protection circuit starts to operate.
When setting the output capacitor, we recommend considering the flash memory capacitance within
the IC card and making the output voltage to reach 8V or more in less than 20ms.
External dimensions (Units : mm)
26.5Max.
6.0Max.
Marked
side
1
2
3
P=2.54±0.2
1.3±1.2
4
0.5±0.1
1.3±0.2
2.54×8=20.32
7
8
9
∗Pins 5 and 6 are not installed.
SIP9
0.25±0.05
4/5
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