MAX1897EGP Просмотр технического описания (PDF) - Maxim Integrated
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MAX1897EGP Datasheet PDF : 33 Pages
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Quick-PWM Slave Controllers for
Multiphase, Step-Down Supplies
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V+ = 12V, VCC = VDD = 5V, VOUT = 1.3V (ZMODE = GND) and 1V (ZMODE = VCC), SHDN = VCC (MAX1897))
COMPENSATION OUTPUT CURRENT vs.
CURRENT-SENSE VOLTAGE DIFFERENTIAL
100
80
OUT = CM+ = CM- = CS-
ICOMP = GM(VCS+ - VCS-)
60
40
20
0
-20
-40
-60
-80
-100
-150 -100
-50 0 50
VCS+ - VCS- (V)
100 150
MINIMUM TRIGGER PULSE WIDTH
vs. OVERDRIVE VOLTAGE
500
450
400
ON-TIME TRIGGERED
ABOVE THE LINE
350
300
250
RISING (OUT-OF-PHASE)
200
150
FALLING (IN-PHASE)
100
50
0
0
0.5
1.0
1.5
2.0
OVERDRIVE VOLTAGE (V)
POSITIVE CURRENT-LIMIT THRESHOLD
vs. ILIM VOLTAGE
160
140
120
100
80
60
MASTER OR SLAVE
40
20
0
0
0.5
1.0
1.5
VILIM (V)
500
450
400
350
300
250
200
150
100
50
0
0
TRIGGER PROPAGATION DELAY
vs. OVERDRIVE VOLTAGE
RISING (OUT-OF-PHASE)
FALLING (IN-PHASE)
0.5
1.0
1.5
2.0
OVERDRIVE VOLTAGE (V)
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