ncp5372 ON Semiconductor, ncp5372 Datasheet - Page 22

• Manufacturer Part Number: ncp5372
• Description: High Efficiency Two-phase Step-down Power Controller For Imvp-6.5 Mobile Cpu Core Power Supplies
• Manufacturer: ON Semiconductor

Table 3. Fault Protection Summary
Overcurrent
Overvoltage (+200mV)
Severe Overvoltage (>1.55V)
Undervoltage (-300mV)
Thermal Shutdown
(Tj >150°C)
UVLO
Fault
Rev0.3
Confidential and Proprietary – Not for Public Release
Protection
Duration
Before
200µs
200µs
50µs
2µs
-
-
ON Semiconductor CONFIDENTIAL
TG, BG, and PWRGD latched low
TG, BG, and PWRGD latched low
TG and PWRGD latched low,
BG switches ON when V
BG switches OFF when V
Continue monitor and response for OV
condition according to the above thresholds
TG, BG, and PWRGD latched low
Device disabled,
TG, BG, and PWRGD latched low
Device disabled,
TG, BG latched low
Mar 19, 2008 - Page 20
Actions
CC_CORE
CC_CORE
> 1.55V,
< 0.3V,
Toggle VR_ON, VCC,
VCCP1, VCCP2, or VIN
Toggle VR_ON, VCC,
VCCP1, VCCP2, or VIN
Toggle VR_ON, VCC,
VCCP1, VCCP2
Toggle VR_ON, VCC,
VCCP1, VCCP2, or VIN
Toggle VR_ON, VCC,
VCCP1, VCCP2, or VIN
after Tj falls by 30°C.
Raising VCC, VCCP1,
or VCCP2 above their
respective upper
thresholds.
Fault Reset