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RT8167A Datasheet(PDF) 19 Page - Richtek Technology Corporation

Part # RT8167A
Description  Dual Single-Phase PWM Controller for CPU Core/GFX Power Supply
PDF  40 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8167A Datasheet(HTML) 19 Page - Richtek Technology Corporation

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RT8167A
19
DS8167A-00
January 2012
www.richtek.com
©
Copyright
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Zero Current Detection
Threshold
VZCD_TH
VZCD_TH = GND − VPHASEx
--
10
--
mV
Protection
Under Voltage Lock-out
Threshold
VUVLO
VCC Falling edge
4.04
4.24
--
V
Under Voltage Lock-out
Hysteresis
ΔVUVLO
--
100
--
mV
Over Voltage Protection
Threshold
VOVP
Respect to VOUT_MAXSVID, with
1
μs filter time
100
150
200
mV
Under Voltage Protection
Threshold
VUVP
VUVP = VISENxN − VREFx, 0.8V <
VREFx <1.52V, with 3μs filter time
−350
−300
−250
mV
Negative Voltage
Protection Threshold
VNVP
VNVP = VISENxN − GND
−100
−50
--
mV
Current Sense Gain for
Over Current Protection
AOC
VOCSET = 2.4V
VISENxP − VISENxN = 50mV
--
48
--
V/V
Logic Inputs
Logic-High VIH
With respect to 1V, 70%
0.7
--
--
V
EN Input
Threshold
Voltage
Logic-Low
VIL
With respect to 1V, 30%
--
--
0.3
V
Leakage Current of EN
−1
--
1
μA
VIH
With respect to Intel Spec.
0.65
--
--
V
VCLK,VDIO Input
Threshold Voltage
VIL
With respect to Intel Spec.
--
--
0.45
V
Leakage Current of
VCLK, VDIO
ILEAK_IN
−1
--
1
μA
ALERT
ALERT Low Voltage
VALERT
IALERT_ SINK = 4mA
--
--
0.4
V
VR Ready
VRx_READY Low Voltage VVRx_READY IVRx_READY_ SINK = 4mA
--
--
0.4
V
VRx_READY Delay
tVRx_READY
VISENxN = VBOOT to VVRx_READY high
70
100
160
μs
Thermal Throttling
VRHOT Output Voltage
VVRHOT
IVRHOT_SINK = 40mA
--
0.4
--
V
High Impedance Output
ALERT, VRx_READY,
VRHOT
ILEAK_OUT
−1
--
1
μA
Temperature Zone
TSEN Threshold for
Tmp_Zone [7] transition
100°C
--
1.8725
--
V
TSEN Threshold for
Tmp_Zone [6] transition
97°C
--
1.8175
--
V
TSEN Threshold for
Tmp_Zone [5] transition
94°C
--
1.7625
--
V
TSEN Threshold for
Tmp_Zone [4] transition
91°C
--
1.7075
--
V
TSEN Threshold for
Tmp_Zone [3] transition
VTSENx
88°C
--
1.6525
--
V



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