ncp4200 ON Semiconductor, ncp4200 Datasheet - Page 8

• Manufacturer Part Number: ncp4200
• Description: Programmable Multi-phase Synchronous Buck Converter With Pmbus
• Manufacturer: ON Semiconductor

Undervoltage Threshold
Undervoltage Adjustment Range
Low
Undervoltage Adjustment Range
High
Overvoltage Threshold
Overvoltage Adjustment Range
Low
Overvoltage Adjustment Range
High
Output Low Voltage
Power Good Delay Time
During Soft−Start
VID Code Changing
VID Code Static
Crowbar Trip Point
Crowbar Adjustment Range
Crowbar Reset Point
Crowbar Delay Time
VID Code Changing
VID Code Static
Output Low Voltage
Output High Voltage
Logic High Input Voltage
Logic Input Low Voltage
Hysteresis
SDA Output Low Voltage
Input Current
Input Capacitance
Clock Frequency
SCL Falling Edge to SDA Valid
Time
Output Low Voltage
Output High Leakage Current
ADC Input Voltage Range
Total Unadjusted Error (TUE)
Differential Non−linearity (DNL)
Conversion Time, Voltage
Channel
ELECTRICAL CHARACTERISTICS
(Note 1 and 3).
POWER−GOOD COMPARATOR
PWM OUTPUTS
PMBus INTERFACE
ALERT / FAULT OUTPUTS
ANALOG / DIGITAL CONVERTER
Parameter
I
PWM(SOURCE)
V
V
I
V
V
V
V
PWM(SINK)
t
C
IH(SDA, SCL)
PWRGD(OV)
IL(SDA, SCL)
PWRGD(UV)
OL(PWRGD)
= 400 mA
CROWBAR
Symbol
CROWBAR
−400 mA
SCL, SDA
I
IH
f
V
V
I
SCL
OH
V
OL
; I
OL
IN
IL
= 5.0 V, FBRTN = GND for typical values T
=
Relative to nominal DAC output
PWRGD_LO Register = 000
PWRGD_LO Register = 111
Relative to DAC output, PWRGD_Hi = 00
PWRGD_Hi Register = 11
PWRGD_Hi Register = 00
I
Internal Timer
Relative to DAC output, PWRGD_Hi = 00
PWRGD_HI Register
Relative to FBRTN
Overvoltage to PWM going low
V
V
I
I
V
8 Bits
Averaging Enabled (32 averages)
PWRGD(SINK)
SDA
OUT
OL(PWM)
OH(PWM)
OH
= 5.0 V
http://onsemi.com
= −6 mA
= −6mA
= −4 mA
8
Conditions
A
= 0°C to 85°C, unless otherwise noted.
−600
−1.0
Min
200
100
200
150
250
100
4.0
2.1
0
−500
−500
−150
Typ
300
150
300
150
250
200
300
300
250
400
160
500
2.0
5.0
5.0
1.0
±1
80
Max
−400
400
300
400
300
350
500
400
0.8
0.4
1.0
1.0
0.4
1.0
2
Unit
LSB
kHz
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
ms
ms
mA
pF
uA
ms
ns
ms
ns
ms
%
V
V
V
V
V
V