MAX6499 Maxim Integrated Products, MAX6499 Datasheet - Page 12

• Manufacturer Part Number: MAX6499
• Description: Overvoltage-Protection Switches/Limiter Controllers
• Manufacturer: Maxim Integrated Products

72V, Overvoltage-Protection Switches/
Limiter Controllers with an External MOSFET
Figure 6. Overvoltage Limiter (MAX6495)
Figure 8. Overvoltage Protection to a DC-DC Converter
(MAX6497/MAX6498)
12
12V
12V IN
______________________________________________________________________________________
IN
SHDN
OVSET
IN
SHDN
MAX6497
MAX6498
GATE
POK
MAX6495
GATE
GND
POKSET
OUTFB
GND
OUTFB
OVSET
IN
IN
CONVERTER
CONVERTER
EN
DC-DC
DC-DC
GND
GND
OUT
OUT
Figure 7. Overvoltage Limiter with Low-Voltage-Drop Reverse-
Protection Circuit (MAX6496)
Figure 9. Overvoltage and Undervoltage Window Detector
(MAX6499)
12V
12V
R1
R2
R3
Typical Application Circuits
IN
SHDN
GATEP
SHDN
UVSET
OVSET
IN
MAX6496
MAX6499
GATE
GND
GATE
CLEAR
OUTFB
OVSET
OUTFB
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GND
IN
CONVERTER
DC-DC
IN
GND
CONVERTER
DC-DC
OUT
GND
OUT