RT8859M 데이터 시트보기 (PDF) - Richtek Technology
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RT8859M Datasheet PDF : 51 Pages
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RT8859M
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Thermal Throttling
VRHOT Output Voltage
Current Monitor
Current Monitor Maximum
Output Voltage in
Operating Range
High Impedance Output
VVRHOT
VIMON
IVRHOT = 10mA
--
VDAC = 1V,
VFB − VCC_SENSE = 100mV,
3.2
RIMONFB = 10kΩ, RIMON = 330kΩ
-- 0.13 V
3.3 3.4 V
PWMx, ALERT, VRx_RDY,
VRHOT
PWM Driving Capability
IL EA K _O UT
PWM Source Resistor
RPWM_SOURCE
PWM Sink Resistor
RPWM_SINK
DVID, DVIDA, ICCMAX, ICCMAXA, and TMPMAX Pin Current
Current Sourcing Out from
DVIDx Pin to GND
Current Sinking In from 5V
to ICCMAX Pin
Current Sourcing Out from
ICCMAXA Pin to GND
Current Sinking In from 5V
to TMPMAX Pin
IDVIDx
IICCM AX
IICCM AX A
ITMPMAX
During dynamic VID fast event
After VR_RDY
After VRA_RDY
After VR_RDY
DVID and DVIDA Maximum Voltage
Maximum Allowable
Voltage at DVIDx Pin
SVID
SVID Frequency
SVID Clock to Data Delay
Setup Time of VDIO
Hold Time of VDIO
VINITIAL Setting
VDV IDx _M AX
fSVID
tCO
tSU
tHLD
During Dynamic VID Event
VSETINI0
For VINITIAL = 0V
−1
--
1 μA
--
30 --
Ω
--
15 --
Ω
6
8
10 μA
--
16 -- μA
--
128 -- μA
--
16 -- μA
--
--
2
V
5
25 26.25 MHz
4
-- 8.3 ns
7
--
--
ns
14
--
--
ns
0
--
8
SETINIx Threshold
Voltage
V SE TINI0_ 9
V SE TINI1_ 0
V SE TINI1_ 1
ADD Threshold
V SE TINI1_ 5
ADD Input Logic-Low
VI L
Threshold Logic-Medium VIM
Voltage
Logic-High
VI H
For VINITIAL = 0.9V
For VINITIAL = 1V
For VINITIAL = 1.1V
For VINITIAL = 1.5V
Set SVID address 0000 0001
Set SVID address 0010 0011
Set SVID address 0100 0101
17
32.5
57.5
82.5
-- 20
-- 42.5 %VCC
-- 67.5
-- 100
--
-- 0.35
0.7
--
3
V
VCC − 0.2 --
--
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8859M-05 July 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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