RT8876A Datasheet, PDF (19/50 Pages) Richtek Technology Corporation – Dual Channel PWM Controller with 3/2/1 Phase for CORE VR and Single Phase for AXG VR

Parameter
Symbol
Test Conditions
ADC
Digital Code of ICCMAX
Digital Code of ICCMAXA
Digital Code of TEMPMAX
Digital Code of Output
Current Report
Updating Period of Output
Current Report
Tolerance Band of Temp.
Zone Trip Points b7, b6, b5
Updating Period of
Temperature Zone
Timing
C_ICCMAX1
C_ICCMAX2
C_ICCMAX3
C_ICCMAXA1
C_ICCMAXA2
C_ICCMAXA3
C_TEMPMAX1
C_TEMPMAX2
C_TEMPMAX3
C_OCR1
C_OCR2
C_OCR3
t_OCR
t_{TSEN_TOL}
t_TZ
V_ICCMAX = 12.74% x VCC5
V_ICCMAX = 25.284% x VCC5
V_ICCMAX = 50.372% x VCC5
V_ICCMAXA = 3.332% x VCC5
V_ICCMAXA = 6.468% x VCC5
V_ICCMAXA = 12.74% x VCC5
V_TEMPMAX = 33.516% x VCC5
V_TEMPMAX = 39.396% x VCC5
V_TEMPMAX = 49.196% x VCC5
V_IMONA = V_IMONA = 3.3V
V_IMONA = V_IMONA = 2.208V
V_IMONA = V_IMONA = 1.107V
UGATE Rise Time
UGATE Fall Time
LGATE Rise Time
LGATE Fall Time
Propagation Delay
Output
UGATE Drive Source
Current
UGATE Drive Sink
Resistance
LGATE Drive Source
Current
LGATE Drive Sink
Resistance
t_UGATEr
t_UGATEf
t_LGATEr
t_LGATEf
t_UGATEpgh
t_UGATEpdl
t_LGATEpdh
t_LGATEpdl
3nF load
3nF load
3nF load
3nF load
I_UGATEsr
R_UGATEsk
I_LGATEsr
R_LGATEsk
V_BOOTx − V_PHASEx = 12V,
V_UGATEx − V_PHASEx = 2V
V_BOOTx − V_PHASEx = 12V
V_LGATEx = 2V
UGATE Drive Source
I_UGATEsr
V_BOOTx − V_PHASEx = 12V,
V_UGATEx − V_PHASEx = 2V
DVID, DVIDA, ICCMAX, ICCMAXA and TEMPMAX
Current Sourcing Out from
DVIDx Pin to GND
I_DVIDx
During dynamic VID fast event
RT8876A
Min Typ Max Unit
29
32
35
61
64
67 decimal
125 128 131
5
8
11
13
16
19 decimal
29
32
35
82
85
88
97 100 103 decimal
122 125 128
252 255 255
167 170 173 decimal
82
85
88
--
--
500
μs
20
--
20
mV
--
--
500
μs
--
25
--
ns
--
12
--
ns
--
24
--
ns
--
10
--
ns
--
60
--
--
22
--
ns
--
20
--
--
8
--
--
2
--
A
--
1.4
--
Ω
--
2.2
--
A
--
1.1
--
Ω
--
2
--
A
6
8
10
μA
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8876A-02 October 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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