MAX17409 데이터 시트보기 (PDF) - Maxim Integrated
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MAX17409 Datasheet PDF : 32 Pages
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1-Phase Quick-PWM GPU Controller
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VIN = 12V, VDD = VCC = 5V, SHDN = ILIM = VCC, SKIP = GNDS = PGND = GND, VFB = VCSP = VCSN = 1.05V;
G5–G0 set for 1.05V (G0–G5 = 100110); TA = -40°C to +105°C, unless otherwise specified.) (Note 3)
PARAMETER
GATE DRIVERS
DH Gate-Driver On-Resistance
DL Gate-Driver On-Resistance
Internal BST Switch
On-Resistance
CURRENT MONITOR
Current-Monitor Transconductance
Current-Monitor Offset Referred
to V(CSP,CSN)
IMON Clamp Voltage
LOGIC AND I/O
Logic-Input High Voltage
Logic-Input Low Voltage
Low-Voltage Logic-Input
High Voltage
SYMBOL
CONDITIONS
RON(DH)
RON(DL)
BST - LX forced
to 5V
High state (pullup)
Low state (pulldown)
High state (pullup)
Low state (pulldown)
RBST IBST = 10mA, VDD = 5V
Gm(IMON) IIMON/(VCSP - VCSN) VCSN = 0.5V to 1.0V
IIMON = 0
VIMON IIMON = -1.0mA
VIH
VIL
VIHLV
SHDN, SKIP
SHDN, SKIP
G0–G5
MIN
4.9
-1.0
1.05
2.3
0.67
TYP
MAX UNITS
2.5
2.0
2.0
0.7
20
5.1
mS
+1.0
mV
1.15
V
V
1.0
V
V
Low-Voltage Logic-Input
Low Voltage
VILLV G0–G5
0.33
V
Note 3: Limits are 100% production tested at TA = +25°C. Maximum and minimum limits over temperature are guaranteed by design
and characterization.
Note 4: The equation for the target voltage VTARGET is:
VTARGET = the slew-rate-controlled version of VDAC, where VDAC = 0 for shutdown, VDAC = VVID otherwise (the VVID volt-
ages for all possible VID codes are given in Table 4).
In pulse-skipping mode, the output rises by approximately 1.5% when transitioning from continuous conduction to no load.
Note 5: On-time and minimum off-time specifications are measured from 50% to 50% at the DH pin, with LX forced to 0V, BST forced
to 5V, and a 500pF capacitor from DH to LX to simulate external MOSFET gate capacitance. Actual in-circuit times might be
different due to MOSFET switching speeds.
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