NCP5385
http://onsemi.com
13
ELECTRICAL CHARACTERISTICS
(0°C < T
A
< 70°C; 0°C < T
J
< 85°C; 10.8 V < V
CC
< 13.2 V; All DAC Codes; C
VCC
= 0.1 F, F
SW
= 400 kHz, unless otherwise stated)
Parameter UnitsMaxTypMinTest Conditions
Overvoltage Protection
Overvoltage Threshold (Note 1) DAC+160 DAC+180 DAC+200 mV
Undervoltage Protection
UVLO Start Threshold 8.2 9.0 9.5 V
UVLO Stop Threshold 7.2 8.0 8.5 V
UVLO Hysteresis − 1.0 − V
VID Inputs
Upper Threshold V
UPPER
− − 800 mV
Lower Threshold V
LOWER
400 − − mV
Input Bias Current V
VIDX
= 1.25 V − 100 500 nA
Delay before Latching VID Change
(VID De−Skewing)
Measured from the 1
st
edge
of a VID change
400 − 1000 ns
VR10/VR11 Select
VR10/VR11 DAC Table Threshold 0.4 − 0.775 V
VR10 w/ Legacy SS/VR11 Threshold 2.7 − 3.1 V
Internal DAC Slew Rate Limiter
Positive Slew Rate Limit VID step range of +10mV to
+500mV
− 7.3 − mV/s
Negative Slew Rate Limit VID step range of −10mV to
−500mV
− 7.3 − mV/s
Voltage Reference (V
REF
)
V
REF
Output Voltage 0 < I
VREF
< 250 A 3.92 4.00 4.08 V
Input Supply Current
V
CC
Operating Current F
SW
= 400 kHz − 20 − mA
1. Guaranteed by design. Not tested in production.
