MAX17009GTL+ Maxim Integrated Products, MAX17009GTL+ Datasheet - Page 26

• Manufacturer Part Number: MAX17009GTL+
• Description: IC CTLR VIDEO SERIAL DUAL 40TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX17009GTL+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

where dV
the total output capacitance.
The MAX17009 SMPSs remain in a pulse-skipping
mode even during upward and downward VID transi-
tions. As such, downward VID transitions are not
forced, and the output voltage may take a longer time
to settle to the lower VID code. The discharge rate of
the output voltage during downward transitions is
dependent on the load current and total output capaci-
tance for loads less than a minimum current, and
dependent on the R
AMD Mobile Serial VID Dual-Phase
Fixed-Frequency Controller
Figure 4. VID Transition Timing Figure
Table 4. Output Voltage VID DAC Codes
26
SVID[6:0]
000_0000
000_0001
000_0010
000_0011
000_0100
000_0101
000_0110
000_0111
000_1000
000_1001
(CORE TARGET)
CORE VOLTAGE
______________________________________________________________________________________
CORE LOAD
SVC/SVD
PWRGD
TARGET
VOLTAGE (V)
I
L
OUTPUT
PWRGD LOWER
PWRGD UPPER
1.5500
1.5375
1.5250
1.5125
1.5000
1.4875
1.4750
1.4625
1.4500
1.4375
≅
/dt is the required slew rate, C
THRESHOLD
THRESHOLD
C
OUT
TIME
×
(
dV
programmed slew rate for
TARGET
HIGH IMPEDANCE
SVID[6:0]
010_0000
010_0001
010_0010
010_0011
010_0100
010_0101
010_0110
010_0111
010_1000
010_1001
BLANK
UPPER THRESHOLD BLANKED
LIGHT LOAD
/
dt
20μs
)
BUS IDLE
VOLTAGE (V)
OUTPUT
1.1500
1.1375
1.1250
1.1125
1.1000
1.0875
1.0750
1.0625
1.0500
1.0375
OUT
CORE TARGET
is
HIGH IMPEDANCE
heavier loads. The critical load current (I
where the transition time is dependent on the load is:
For load currents less than I
time is:
For soft-start and shutdown, the controller uses a fixed
slew rate of 1mV/µs. Figure 4 is the VID transition timing
diagram. Table 4 shows the output-voltage VID DAC
codes.
BLANK
SVID[6:0]
100_0000
100_0001
100_0010
100_0011
100_0100
100_0101
100_0110
100_0111
100_1000
100_1001
20μs
BUS IDLE
I
LOAD CRIT
VOLTAGE (V)
t
TRANS
OUTPUT
(
0.7500
0.7375
0.7250
0.7125
0.7000
0.6875
0.6750
0.6625
0.6500
0.6375
)
≅
≅
C
C
HIGH IMPEDANCE
OUT
OUT
BLANK
I
×
×
LOAD(CRIT)
LOAD
20μs
HEAVY LOAD
(
dV
SVID[6:0]
dV
110_0000
110_0001
110_0010
110_0011
110_0100
110_0101
110_0110
110_0111
110_1000
110_1001
TARGET
TARGET
BUS IDLE
, the transition
/
VOLTAGE (V)
dt
LOAD(CRIT)
OUTPUT
)
0.3500
0.3375
0.3250
0.3125
0.3000
0.2875
0.2750
0.2625
0.2500
0.2375
)