Rainbow Electronics MAX1715 - Manual (Page 4)

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