MAX17014 Просмотр технического описания (PDF) - Maxim Integrated

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MAX17014

Low-Cost Multiple-Output Power Supply for LCD TVs

Maxim Integrated 

Low-Cost Multiple-Output

Power Supply for LCD TVs

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1, VIN = VIN2 = 12V, AVDD = VOVIN = VSUP = 15V, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless oth-

erwise noted.)

PARAMETER

Mode 1 Voltage Threshold

MODE Capacitor Charge Current

(Mode 2)

CONDITIONS

VMODE rising edge

MIN TYP MAX UNITS

4.5

V

VMODE < MODE current-source stop voltage threshold

40

50

60

µA

MODE Voltage Threshold for

Enabling DRN Switch Control

in Mode 2

GON connects to DRN, VMODE rising edge

MODE Current-Source Stop

Voltage Threshold

MODE rising edge

THR-to-GON Voltage Gain

SEQUENCE CONTROL

EN1, EN2, Input Low Voltage

EN1, EN2 Input High Voltage

EN1, EN2 Pulldown Resistance

DEL1, DEL2, DLP Charge Current

DEL1, DEL2, DLP Turn-On Threshold

VDEL1 = VDEL2 = VDLP = 1V

DEL1, DEL2, DLP Discharge

Switch On-Resistance

EN1 = GND or fault tripped

FBN Discharge Switch On-Resistance

FAULT DETECTION

Duration to Trigger Fault

Duration to Restart After Fault

EN2 = GND or fault tripped

Number of Restart Attempts

Before Shutdown

Thermal-Shutdown Threshold

15°C typical hysteresis

SWITCHING FREQUENCY SELECTION

FSEL Input Low Voltage

600kHz

FSEL Input High Voltage

1.2MHz

FSEL Pulldown Resistance

1.20 1.3

1.4

V

2

3

V

9.4

10.0 10.6

V/V

0.6

V

1.6

V

1

M_

6

8

10

µA

1.19 1.25 1.31

kV

10

_

3

k_

50

160

3

+160

ms

ms

Times

°C

0.6

V

1.6

V

1

M_

6 _______________________________________________________________________________________

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