MAX4914BELT-T 데이터 시트보기 (PDF) - Maxim Integrated
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MAX4914BELT-T
Maxim Integrated
MAX4914BELT-T Datasheet PDF : 11 Pages
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100mA/200mA/300mA Current-Limit Switches
with Low Shutdown Reverse Current
supply voltage, the operation of the switches with the
autoretry option does not cause problems because the
total power dissipated during the short is scaled by the
duty cycle:
PMAX
=
VIN_MAX × IOUT _MAX ×
tRETRY + tBLANK
tBLANK
= 155mW
where VIN = 5.5V, IOUT = 450mA, tBLANK = 14ms, and
tRETRY = 210ms.
Attention must be given to the MAX4914B/MAX4915B/
MAX4917B (latchoff versions), where the latchoff condi-
tion must be manually reset by toggling ON from high
to low. If the latchoff time duration is not sufficiently
high, it is possible for the device to reach the thermal-
shutdown threshold and never be able to turn the
device on until it cools down.
Pin Configurations
TOP VIEW
+
IN 1
5 OUT
GND 2 MAX4915A/B
MAX4917A/B
ON 3
4 FLAG
+
N.C. 1
6 ON
IN 2 MAX4914B 5 GND
MAX4915A/B
OUT 3 MAX4917A/B 4 FLAG
SOT23
μDFN (2mm x 2mm)
2.3V TO 5.5V
Typical Operating Circuit
IN
ON
MAX4914B FLAG
μP
MAX4915A/B
MAX4917A/B
TO SDIO PORT
OUT
GND
PROCESS: BiCMOS
Chip Information
_______________________________________________________________________________________ 9
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