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MAX783C/D

Triple-Output Power-Supply Controller for Notebook Computers

Maxim Integrated 

Triple-Output Power-Supply Controller

for Notebook Computers

ELECTRICAL CHARACTERISTICS (continued)

(V+ = 15V, GND = PGND = 0V, IVL = IREF = 0mA, S—H—D—N– = ON3 = ON5 = 5V, other digital input levels are 0V or +5V,

TA = TMIN to TMAX, unless otherwise noted.)

PARAMETER

CONDITIONS

MIN TYP

INTERNAL REGULATOR AND REFERENCE

VL Output Voltage

VL Fault Lockout Voltage

ON5 = ON3 = 0V, 5.5V < V+ < 30V, 0mA < IL < 25mA

4.5

Falling edge, hysteresis = 1%

3.6

V(aLls/FoBR—5D—SY—w5–itTcrhipovVeorltVaogltea)ge

Rising edge of FB5, hysteresis = 1%

4.2

REF Output Voltage

No external load (Note 2)

3.24

REF Fault Lockout Voltage

Falling edge

2.4

REF Load Regulation

0mA < IL < 5mA (Note 3)

30

Shutdown V+ Current

–S—H—D—N– = D1 = D2 = ON3 = ON5 = DA0 = DA1 = DB0 =

DB1 = 0V, V+ = 30V

25

Standby V+ Current

D1 = D2 = ON3 = ON5 = DA0 = DA1 = DB0 = DB1 = 0V,

V+ = 30V

70

Quiescent Power Consumption D1 = D2 = D3 = DA0 = DA1 = DB0 = DB1 = 0V,

(both controllers on)

FB5 = CS5 = 5.25V, FB3 = CS3 = 3.5V

5.2

Off V+ Current

FB5 = CS5 = 5.25V, VL switched over to FB5

30

COMPARATORS

D1, D2 Trip Voltage

Falling edge, hysteresis = 1%

1.61

D1, D2 Input Current

Q1, Q2 R—D—Y—5– Source Current

Q1, Q2 R—D—Y—5– Sink Current

Q1, Q2, R—D—Y—5– Output High Voltage

Q1, Q2, R—D—Y—5– Output Low Voltage

D1 = D2 = 0V to 5V

VH = 15V, VOUT = 2.5V

VH = 15V, VOUT 2.5V

ISOURCE = 5µA, VH = 3V

ISINK = 20µA, VH = 3V

12

20

200

500

VH - 0.5

Quiescent VH Current

VH = 18V, D1 = D2 = 5V, no external load

4

OSCILLATOR AND INPUTS/OUTPUTS

Oscillator Frequency

SYNC High Pulse Width

SYNC = 3.3V

SYNC = 0V or 5V

270

300

170

200

200

SYNC Low Pulse Width

200

SYNC Rise/Fall Time

Not tested

Oscillator SYNC Range

240

Maximum Duty Cycle

Input Low Voltage

Input High Voltage

Input Current

SYNC = 3.3V

SYNC = 0V or 5V

S—H—D—N–, ON3, ON5, DA0, DA1, DB0, DB1, SYNC

S—H—D—N–, ON3, ON5, DA0, DA1, DB0, DB1

89

92

92

95

2.4

SYNC

VL - 0.5

S—H—D—N–, ON3, ON5, DA0, DA1, DB0, DB1, VIN = 0V or 5V

MAX UNITS

5.5

V

4.2

V

4.7

V

3.36

V

3.2

V

75

mV

40

µA

110 µA

8.6 mW

60

µA

1.69

V

±100 nA

30

µA

1000 µA

V

0.4

V

10

µA

330

230

kHz

ns

ns

200

ns

350 kHz

%

0.8

V

V

±1

µA

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