MAX1729 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX1729

ECB and LCD Display Bias Supply with Accurate Output Voltage and Temperature Compensation

Maxim Integrated 

ECB and LCD Display Bias Supply with Accurate

Output Voltage and Temperature Compensation

ABSOLUTE MAXIMUM RATINGS

IN to GND .................................................................-0.3V to +6V

LX, PS, OUT to GND...............................................-0.3V to +20V

CTLIN, FB, REF, COMP, TC to GND ...........-0.3V to (VIN + 0.3V)

LX to PS ..................................................................-20V to +1.0V

LX, PS, OUT Current ...........................................................60mA

Continuous Power Dissipation (TA = +70°C)

10-pin µMAX (derate 5.6mW/°C above +70°C) ..........444mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10sec) .............................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VIN = +3V, CTLIN = IN, FB = GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

Operating Voltage Range

Undervoltage Lockout

Threshold (Note 2)

IN Supply Current

PS Supply Current

Shutdown Supply Current

Reference Output Voltage

Minimum Output Voltage

Maximum Output Voltage

CTLIN to VOUT Gain

Output Voltage

Temperature Coefficient

Maximum Output Current

TC Output Voltage

TC Output Temperature

Coefficient (Note 3)

TC Output Current

Feedback Set Voltage (FB)

FB Mode Threshold

FB Bias Current

CTLIN High Voltage

SYMBOL

VIN

CONDITIONS

VLO

IIN

IPS

ISHDN

VREF

VOUT

(MIN)

VOUT

(MAX)

TCOUT

IOUT

VTC

TCTC

ITC

VFB

VMODE

IFB

VIH

CTLIN = GND, ISHDN = IIN + IPS

IREF = 0

TA = +25°C

TA = -40°C to +85°C

FB = GND, CTLIN =

0.1% duty cycle,

IOUT = 0 to 0.5mA

TA = 0°C to +85°C

TA = -40°C to +85°C

IOUT = 0 to 0.5mA

FB = GND, CTLIN =

0.1% to 100% duty

cycle, IOUT = 0

VPS = +18V (Note 3)

TA = 0°C to +85°C

TA = -40°C to +85°C

TA = 0°C to +85°C

TA = -40°C to +85°C

TA = +25°C

TA = 0°C to +85°C

TA = -40°C to +85°C

TA = +25°C

TA = -40°C to +85°C

VFB = +1.25V

VIN = +5.5V

VIN = +2.7V

MIN

2.7

2.0

1.215

1.200

2.35

2.35

TYP

37

30

0.4

1.228

2.45

MAX UNITS

5.5

V

2.6

V

50

µA

40

µA

2

µA

1.241

V

1.256

2.5

V

2.52

16 16.40

V

13.90

13.60

0.5

1.178

15.5

14.5

±50

1.215

1.200

90

2

1.3

13.95

±11

±18

2.5

1.228

16.5

16.5

1.228

122

5

14.00

14.20

±30

±65

1.278

17.5

18.5

1.241

1.256

150

50

V/100%

ppm/°C

mA

V

mV/°C

µA

V

mV

nA

V

2 _______________________________________________________________________________________

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