RT3614EE
Parameter
Current Sensing Amplifier
Input Offset Voltage
Impedance at Positive Input
CS Input Voltage
V
OSCS
R
ISENxP
V
CSIN
Differential voltage range of DCR
sense. (V
CSIN
= Inductor current x
DCR x DCR divider)
Internal current mirror gain of per
phase current sense
I
IMON
/ I
CS,PERx
V
IN
= 19V,VID = 1.8V, K
TON
=
1.36
V
DAC
= 1.8V under PS1
condition
Falling edge
Rising edge hysteresis
Respect to VID voltage, VID >
1.88V
VID
1.88V
V
UV
Respect to VID voltage
0.6
1
10
--
--
--
0.6
--
100
mV
M
mV
Symbol
Test Conditions
Min
Typ
Max
Unit
Current Sense Gain Error
TON Setting
On-Time Setting
Minimum Off-Time
Protections
Under-Voltage Lockout
Threshold
Over-Voltage Protection
Threshold
Under-Voltage Protection
Threshold
VRON and VR_READY
VRON Threshold
Logic-High
Logic-Low
A
MIRROR
0.97
1
1.03
A/A
t
ON
t
OFF
--
--
185
130
--
--
ns
ns
V
UVLO
V
UVLO
V
OV
3.9
100
VID
+ 300
--
760
4.1
170
VID
+ 350
2.23
660
4.3
250
VID
+ 400
--
550
V
mV
mV
V
mV
V
IH
V
IL
V
VR_READY
I
VR_READY
= 10mA
0.7
--
1
--
--
--
--
--
--
0.3
1
0.13
V
A
V
Leakage Current of VRON
VR_READY Pull Low Voltage
Serial VID and VR_HOT#
VCLK, VDIO
Input Voltage
Logic-High
Logic-Low
V
IH
V
IL
I
LEAK_IN
V
VDIO
Pull Low Voltage
Leakage Current of
ALERT#,
V
ALERT#
V
VR_HOT#
I
VDIO
= 10mA
I
ALERT#
= 10mA
I
VR_HOT#
= 10mA
Respect to INTEL Spec. with
50mV hysteresis
0.65
--
1
--
--
--
--
0.45
1
V
A
Leakage Current of VCLK and
VDIO
--
--
0.13
V
VR_HOT#
,
I
LEAK_OUT
1
--
1
A
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS3614EE-01
December 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
