MAX8760 데이터 시트보기 (PDF) - Maxim Integrated
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MAX8760
Maxim Integrated
MAX8760 Datasheet PDF : 39 Pages
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Dual-Phase, Quick-PWM Controller for AMD
Mobile Turion 64 CPU Core Power Supplies
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, VCC = VDD = V SHDN = V SKIP = VS0 = VS1 = 5V, VFB = VCMP = VCMN = VCSP = VCSN = 1.3V, OFS =
SUS = GNDS = D0–D5 = GND, TA = 0°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
D0–D5 Logic Input Low Voltage
0.8
V
D0–D5 Input Current
D0–D5
-2
+2
µA
High
VCC -
0.4
Four-Level Input Logic Levels
TON, S0 and S1
Open
3.15
3.85
V
REF
1.65
2.35
Low
0.4
Four-Level Input Current
TON, S0 and S1 forced to GND or VCC
-3
+3
µA
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, VCC = VDD = V SHDN = V SKIP = VS0 = VS1 = 5V, VFB = VCMP = VCMN = VCSP = VCSN = 1.3V, OFS =
SUS = GNDS = D0–D5 = GND, TA = -40°C to +100°C, unless otherwise specified.) (Note 5)
PARAMETER
SYMBOL
CONDITIONS
MIN
PWM CONTROLLER
Battery voltage, V+
4
Input Voltage Range
VCC, VDD
4.5
DC Output Voltage Accuracy
(Note 2)
V+ = 4.5V to 28V, DAC codes ≥ 1V
-13
includes load
regulation error
DAC codes from
0.375V to 1V
-20
MAX UNITS
28
V
5.5
+13
mV
+20
OFS Input Range
0
2
V
OFS GAIN
GNDS Gain
TIME Frequency Accuracy
AOFS
AGNDS
fTIME
∆VOUT/∆VOFS;
∆VOFS = VOFS, VOFS = 0 to 1V
∆VOUT/∆VOFS;
∆VOFS = VOFS - VREF, VOFS = 1V to 2V
∆VOUT/∆VGNDS
1000kHz nominal, RTIME = 15kΩ
500kHz nominal, RTIME = 30kΩ
250kHz nominal, RTIME = 60kΩ
TON = GND
(550kHz)
-0.131
-0.131
0.94
880
450
220
150
-0.115
V/V
-0.115
1.01
V/V
1120
550
kHz
280
210
On-Time (Note 3)
TON = REF
315
tON
V+ = 12V,
VFB = VCCI = 1.2V
(300kHz)
TON = open
470
(200kHz)
395
ns
580
TON = VCC
910
(100kHz)
1150
Minimum Off-Time (Note 3)
TON = GND
tOFF(MIN) TON = VCC, open, or REF
380
ns
490
6 _______________________________________________________________________________________
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