Ultra-High Efficiency, Dual Step-Down
Controller for Notebook Computers
MAX1715
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, 4A components from Table 1, V
CC =
V
DD
= +5V,
SKIP
= AGND, V+ = 15V,
T
A
= 0°C to +85°C,
unless otherwise
noted.) (Note 1)
PARAMETER
Logic Input Current
V
CC
level
TON Threshold
Float level
REF level
AGND level
Logic Input Current
Logic Input Current
PGOOD Trip Threshold
PGOOD Propagation Delay
PGOOD Output Low Voltage
PGOOD Leakage Current
TON (0 or V
CC
)
ON_,
SKIP
(0 or V
CC
)
Measured at FB_, with respect to error comparator
threshold, no load
Falling edge, FB_ forced 2% below PGOOD trip threshold
I
SINK
= 1mA
High state, forced to 5.5V
-3
-1
-8
-5.5
1.5
0.1
0.4
1
CONDITIONS
SKIP,
to deactivate OVP circuitry
MIN
-5
V
CC
- 0.4
3.15
1.65
3.85
2.35
0.5
3
1
-4
µA
µA
%
µs
V
µA
V
TYP
MAX
-1
UNITS
mA
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, 4A components from Table 1, V
CC =
V
DD
= +5V,
SKIP
= AGND, V+ = 15V,
T
A
= -40°C to +85°C,
unless otherwise
noted.) (Note 1)
PARAMETER
Input Voltage Range
Output 1 Error Comparator
Threshold (DC Output Voltage
Accuracy) (Note 2)
Output 2 Error Comparator
Threshold (DC Output Voltage
Accuracy) (Note 2)
Battery voltage, V+
V
DD,
V
CC
FB1 = OUT1
V+ = 2V to 28V,
SKIP
= V
CC
V+ = 4.5V to 28V,
SKIP
= V
CC
FB1 = AGND
FB1 = V
CC
FB2 = OUT2
FB2 = GND
TON = GND
On-Time (PWM1)
V+ = 24V, OUT1 = 2V
TON = REF
TON = open
TON = V
DD
TON = GND
On-Time (PWM2)
V+ = 24V, OUT2 = 2V
TON = REF
TON = open
TON = V
DD
Minimum Off-Time
(Note 3)
CONDITIONS
MIN
2
4.5
0.98
1.764
3.234
0.98
2.45
112
142
210
300
154
198
292
420
1.00
1.8
3.3
1.00
2.5
136
173
247
353
182
234
336
484
400
TYP
MAX
28
5.5
1.02
1.836
3.372
1.02
V
2.55
160
205
280
407
215
270
380
550
500
ns
ns
ns
V
UNITS
V
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
