RT8885A
Parameter
SET1 Pin Output
Injection Current
Symbol
IINJECT1
Test Conditions
Min Typ Max
--
40
--
ICCMAX Setting
SET1 Pin Voltage for
ICCMAX Setting
VINI_CORE = 1.1V, VSET1 =
RSET1 x IINJECT1, ICCMAX = 40A
-- 1732.5 --
VS ET1_ ICCMA X
VINI_CORE = 1.1V, VSET1 =
RSET1 x IINJECT1, ICCMAX = 80A
-- 1907.5 --
VINI_CORE =1 .1V, VSET1 =
RSET1 x IINJECT1, ICCMAX = 120A
--
2187.5
--
Quick Response Setting
CORE VR Quick
Response On-Time
tON _QR_CORE
VDAC = 0.75V, VSET1 = 0.4V,
ITONSET = 80A
--
305
--
SET2 Pin (Refer to SET2 Pin Setting Table for Other Settings Not Listed Below)
Initial Startup Voltage for GFX VR
SET2 Pin Voltage for
VINI_GFX Setting
VS ET2_ VINI
SET2 Pin Output
Injection Current
IINJECT2
VINI_GFX = 1.1V, VSET2 = RSET2
x IINJECT2
0.0525
--
0.5075
VINI_GFX = 1.0V, VSET2 = RSET2
x IINJECT2
0.6125
--
1.0675
VINI_GFX=0.9V, VSET2 = RSET2 x
II NJE CT2
1.1725
--
1.6275
VINI_GFX = 0V, VSET2 = RSET2 x
II NJE CT2
1.7325
--
2.1875
--
40
--
ICCMAXA Setting
SET2 Pin Voltage for
ICCMAXA Setting
GFX VR Quick
Response On-Time
VIM AX A0
VIM AX A1
VIM AX A2
tON _QR_GFX
VINI_GFX = 1.1V, VSET2 = RSET2
x IINJECT2, ICCMAXA = 15A
VINI_GFX=1.1V, VSET2 = RSET2 x
IINJECT2, ICCMAXA = 50A
VINI_GFX = 1.1V, VSET2 = RSET2
x IINJECT2, ICCMAXA = 80A
VDAC = 0.75V, VSET2 = 0.4V,
ITONSETA = 80A
-- 1732.5 --
-- 1977.5 --
-- 2187.5 --
--
305
--
Unit
A
mV
ns
V
A
mV
ns
Temperature Zone
TSEN Threshold for
Tmp_Zone[7] Transition
TSEN Threshold for
Tmp_Zone[6] Transition
TSEN Threshold for
Tmp_Zone[5] Transition
TSEN Threshold for
Tmp_Zone[4] Transition
TSEN Threshold for
Tmp_Zone[3] Transition
TSEN Threshold for
Tmp_Zone[2] Transition
100% of TEMP_MAX
97% of TEMP_MAX
94% of TEMP_MAX
91% of TEMP_MAX
88% of TEMP_MAX
85% of TEMP_MAX
1.855 1.8725 1.89
1.8 1.8175 1.835
1.745 1.7625 1.78
V
1.69 1.7075 1.725
1.635 1.6525 1.67
1.58 1.5975 1.615
Copyright ©2014 Richtek Technology Corporation. All rights reserved.
DS8885A-01 January 2014
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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