MAX6499 Datasheet

  • MAX6499

  • 72V、过压保护开关/限幅控制器, 外置MOSFET

  • 688.39KB

  • 16页

  • MAXIM   MAXIM

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72V, Overvoltage-Protection Switches/Limiter
Controllers with an External MOSFET
MAX6495鈥揗AX6499
Typical Application Circuits (continued)
DC-DC
CONVERTER
IN
OUT
EN GND
GATE
12V
IN
SHDN
OUTFB
POKSET
DC-DC
CONVERTER
12V
IN
OUT
GND
IN
R1
SHDN
UVSET
R2
OVSET
R3
GATE
OUTFB
MAX6497
MAX6498
OVSET
POK
GND
MAX6499
CLEAR
GND
Figure 7. Overvoltage Protection to a DC-DC Converter
(MAX6497/MAX6498)
Figure 8. Overvoltage and Undervoltage Window Detector
(MAX6499)
Functional Diagrams
IN
IN
THERMAL
PROTECTION
UVLO
10V
CHARGE
PUMP
GATE
1.24V
1.24V
OUTFB
SHDN
GATEP
10V
SHDN
OUTFB
5V
I
GATEP_SOURCE
OVSET
GATE
10V
CHARGE
PUMP
THERMAL
PROTECTION
UVLO
5V
OVSET
MAX6495
GND
MAX6496
GND
Figure 9. Functional Diagram (MAX6495)
12
Figure 10. Functional Diagram (MAX6496)
______________________________________________________________________________________

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