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전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크

MAX8707 데이터 시트보기 (PDF) - Maxim Integrated

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MAX8707 Datasheet PDF : 37 Pages
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Multiphase, Fixed-Frequency Controller for
AMD Hammer CPU Core Power Supplies
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1. VCC = VSHDN = 5V, OSC = REF, VVPS = VFBS = VCRSN = VCRSP = VCSP_ = 1.20V, VSUSV = 0.8V, OFS = SUS =
GNDS = PGND = SKIP = GND, D0D4 set for 1.20V (D0D4 = 01110). TA = 0°C to +85°C, unless otherwise specified. Typical values
are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
ILIM(PK) Idle Current-Limit
Threshold Voltage (Skip Mode)
Current-Sense Input Current
VIDLE
CSP_ - CSN_, VSKIP 1.2V,
RILIM(PK) = RTRC x 8V / VPKLIMIT,
VPKLIMIT = 50mV
CSP_, CRSP
CSN_, CRSN
2
5
8
mV
-0.2
+0.2
µA
-1.0
+1.0
Current-Sense Common-Mode
Input Range
CRSP, CRSN, CSP_, CSN_
0
2
V
Phase Disable Threshold
CSP4
3
VCC - 1
VCC -
0.4
V
CRS Sense Input Disable
Threshold
CRSP
3
VCC - 1
VCC -
0.4
V
LOGIC AND I/O
Logic Input High Voltage
Logic Input Low Voltage
SHDN No-Fault Threshold
D0D4 Logic Input High Voltage
D0D4 Logic Input Low Voltage
VIH
SHDN, SUS
VIL
SHDN, SUS
To enable no-fault mode
2.4
V
0.8
V
11
13
V
0.8
V
0.4
V
OSC 3-Level Input Logic Levels
SKIP Input Logic Levels
Logic Input Current
VOSC
VSKIP
High (VCC)
Medium (REF)
Low (GND)
High
Low (GND)
SHDN, SKIP, SUS, OSC, D0D4 = 0 to 5V
VCC -
0.4
1.8
1.2
-1
V
2.2
0.4
V
0.8
+1
µA
Logic Output High Voltage
Logic Output Low Voltage
VOH
VOL
PWM_, DRSKP; ISOURCE = 3mA
PWM_, DRSKP; ISINK = 3mA
VCC -
0.4
V
0.4
V
_______________________________________________________________________________________ 5

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