Mfr Part #:

MAX749CPA

Mfr Name: Analog Devices / Maxim Integrated

The MAX749CPA is a digitally adjustable LCD bias supply IC from Analog Devices. It operates with an input voltage range of 2V to 6V and features low quiescent current.

✓ Total Stock: 3,150 pcs

$ Price Range: $0.75

MAX749CPA Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Smaxon Electronics ✓ Non-Authorised Inventory information	3,000 pcs On Request	3000 pcs	On Request	1	On Request	On Request	17+18+	On Request	On Request
Rayichip ✓ Non-Authorised Inventory information	150 pcs On Request	150 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

MAX749CPA Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	Power Management - Specialized
Manufacturer Name	Analog Devices / Maxim Integrated
Applications	LCD Display
Current	60µA
Mounting Type	Through Hole
Operating Temperature	0°C to 70°C
Supplier Device Package	8-PDIP
Voltage	2V ~ 6V

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MAX749CPA Description

Short technical summary and product information.

The MAX749CPA from Analog Devices is a specialized power management IC designed to generate negative LCD-bias contrast voltages. It accepts input voltages ranging from 2V to 6V and offers flexible digital adjustment of the output voltage in 64 equal steps via an internal DAC. The device is designed for efficiency, with a unique current-limited control scheme and a high switching frequency up to 500kHz that minimizes external component size.

Key features include a low quiescent current of 60µA maximum, which reduces to under 15µA in shutdown mode. The MAX749CPA is available in an 8-pin PDIP package and is suitable for through-hole mounting. Its applications include portable electronic devices such as notebook computers, palmtop computers, and personal digital assistants where precise and adjustable LCD bias is required.

This IC drives either an external P-channel MOSFET or a PNP transistor. The output voltage range can be scaled to -100V or greater, set by a single external resistor. The compact design and low power consumption make it an efficient solution for battery-powered applications requiring stable LCD bias voltages.

MAX749CPA Quick Information

Product Type: LCD Bias Supply IC

Canonical Name: MAX749CPA Digitally Adjustable LCD Bias Supply

Subcategory: Specialized

MAX749CPA Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MAX749CPA Estimated Pricing

Qty	Low	High
1+	$0.75	$0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX749CPA Features

Digitally adjustable LCD bias supply.
Input voltage range of 2V to 6V.
Low quiescent current of 60µA max.
Available in 8-PDIP package.
Suitable for through-hole mounting.

MAX749CPA Applications

Used in notebook computers.
Ideal for palmtop computers.
Suitable for PDAs.
Powers portable data terminals.

MAX749CPA FAQs

7 frequently asked questions generated from this part’s specifications.

What is the input voltage range for the MAX749CPA?

The input voltage range for the MAX749CPA is 2V to 6V.

What is the quiescent current of the MAX749CPA?

The quiescent current of the MAX749CPA is a maximum of 60µA.

What is the operating temperature range for the MAX749CPA?

The operating temperature range for the MAX749CPA is 0°C to 70°C.

What package type is the MAX749CPA available in?

The MAX749CPA is available in an 8-PDIP package.

What are the primary applications for the MAX749CPA?

The primary applications for the MAX749CPA include LCD displays.

How is the output voltage adjusted on the MAX749CPA?

The output voltage can be digitally adjusted in 64 equal steps by an internal DAC, or adjusted using a PWM signal or a potentiometer.

What is the shutdown mode current for the MAX749CPA?

In shutdown mode, the MAX749CPA current is reduced to under 15µA.