Rainbow-electronics MAX1715 Bedienungsanleitung PDF herunterladen (Seite 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 =

= +5V, SKIP = AGND, V+ = 15V, T

= -40°C to +85°C, unless otherwise

noted.) (Note 1)

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1, 4A components from Table 1, V

CC =

= +5V, SKIP = AGND, V+ = 15V, T

= 0°C to +85°C, unless otherwise

noted.) (Note 1)

CONDITIONS

level

- 0.4

TON Threshold

Float level 3.15 3.85

REF level 1.65 2.35

AGND level 0.5

TON (0 or V

) µA-3 3Logic Input Current

UNITSMIN TYP MAXPARAMETER

On-Time (PWM1)

112 136 160

FB2 = GND

FB2 = OUT2

V+ = 4.5V to 28V,

SKIP = V

3.234 3.3 3.372FB1 = V

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

PARAMETER MIN TYP MAX UNITS

Input Voltage Range

228

4.5 5.5

Output 1 Error Comparator

Threshold (DC Output Voltage

Accuracy) (Note 2)

0.98 1.00 1.02

CONDITIONS

Battery voltage, V+

DD,

V+ = 2V to 28V,

SKIP = V

On-Time (PWM2)

154 182 215

ON_, SKIP (0 or V

)

µA-1 1Logic Input Current

Falling edge, FB_ forced 2% below PGOOD trip threshold µs1.5PGOOD Propagation Delay

Measured at FB_, with respect to error comparator

threshold, no load

%-8 -5.5 -4PGOOD Trip Threshold

SINK

= 1mA V0.1 0.4PGOOD Output Low Voltage

High state, forced to 5.5V µA1PGOOD Leakage Current

SKIP, to deactivate OVP circuitry

mA-5 -1Logic 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

V+ = 24V, OUT1 = 2V

TON = GND

TON = REF

TON = open

TON = V

1 2 3 4 5 6 7 8 9 ... 24 25

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