MAX17079EVKIT+ Maxim Integrated Products, MAX17079EVKIT+ Datasheet

MAX17079EVKIT+

Manufacturer Part Number

MAX17079EVKIT+

Description

Power Management Modules & Development Tools MAX17079 EVAL KIT MAX17079 EVAL KIT

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX17079GTL.pdf (12 pages)

Specifications of MAX17079EVKIT+

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The MAX17079 is a 7-channel logic-level input to high-

voltage output level shifter. Each channel has two

inputs plus a shared enable input. Each channel has

two outputs, which can be set to five output levels. Two

outputs are complementary to each other. The five out-

put levels are set by five supply rails that are common

to all 14 outputs.

The five supply rails include a typical TFT VCOM rail.

Two upper rails are always greater than VCOM, with

VH1 always greater than VH2. The two lower rails are

always less than VCOM, with VL1 always less than VL2.

Other supply rails are VLS (the typical TFT AVDD sup-

ply) and VCC (the logic supply). The MAX17079 can

also be configured as a two-level voltage shifter.

When EN is low, all 14 outputs connect to VCOM, and

when EN is high, the outputs are determined by their

inputs. The logic inputs are driven by the timing con-

troller. The output switches are typically 3Ω with low

propagation delays and fast rise times. The MAX17079

has a minimum dead time to prevent shoot-through cur-

rents between supplies. The MAX17079 has thermal

shutdown to protect against overheating, VCC under-

voltage lockout (UVLO), and VLS UVLO.

The MAX17079 is in a 40-pin, 6mm x 6mm, thin QFN

package, with exposed pad and a maximum height of

0.8mm.

19-2812; Rev 1; 3/10

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

TOP VIEW

EP = EXPOSED PAD

AGND

TFT LCD TV Panels

VCC

OB1

OA1

VH1

VH2

VLS

________________________________________________________________ Maxim Integrated Products

4-Level or 2-Level Logic to High-Voltage

(6mm x 6mm)

THIN QFN

General Description

MAX17079

Level Shifter for TFT LCD TV Display

Pin Configuration

24 23 22

Applications

20 OA7

OB7

VCOM

VL1

VL2

DGND

♦ 7-Channel Logic-Level Input to High-Voltage

♦ Complementary Outputs in Each Channel

♦ VLS Input Range from 10V to 18V

♦ VCC Input Range from 2.3V to 3.6V

♦ 2-Level or 4-Level Operation

♦ Sequential or Combinational Logic

♦ 3Ω Output Switches

♦ 5-Level Output

♦ Short Propagation Delay (80ns typ)

♦ Fast Rise Time (30ns typ)

♦ Built-In Dead Time to Prevent Shoot-Through

♦ Thermal Shutdown

♦ VLS and VCC Undervoltage Lockout

* EP = Exposed paddle.

MAX17079GTL+ -40°C to +105°C

Output Level Shifter

PART

Simplified Operating Circuit

3.3V

VCC

TEMP RANGE

10V

VH1

AGND

VH2

Ordering Information

MAX17079

VCOM

VL2

DGND

VL1

PIN-

PACKAGE

40 TQFN-EP*

(6mm x 6mm)

15V

VLS

OA1

OB1

OA2

OB2

OA3

OB3

OA4

OB4

OA5

OB5

OA6

OB6

OA7

OB7

Features

T4066+5

CODE

PKG

Related parts for MAX17079EVKIT+

MAX17079EVKIT+ Summary of contents

Page 1

... THIN QFN (6mm x 6mm EXPOSED PAD ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ 7-Channel Logic-Level Input to High-Voltage Output Level Shifter ♦ Complementary Outputs in Each Channel ♦ VLS Input Range from 10V to 18V ♦ ...

Page 2

Logic to High-Voltage Level Shifter for TFT LCD TV Display ABSOLUTE MAXIMUM RATINGS VCC to AGND...........................................................-0.3V to +7V Ax, Bx, CH, ST AGND....................................-0.3V to +7V DGND to AGND.....................................................-0.3V to +0.3V VLS to DGND..........................................................-0.3V to +20V ...

Page 3

Logic to High-Voltage Level Shifter for TFT LCD TV Display ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 3.3V, V VCC VLS Typical values are +25°C, unless otherwise noted.) (Note 1) A PARAMETER ...

Page 4

Logic to High-Voltage Level Shifter for TFT LCD TV Display (Circuit of Figure 12V T = +25°C, unless otherwise noted ENABLE PROPAGATION DELAY MAX17079 toc01 EN OA2 OB2 40ns/div EN: 2V/div ...

Page 5

Logic to High-Voltage Level Shifter for TFT LCD TV Display (Circuit of Figure 12V T = +25°C, unless otherwise noted VL2 SWITCH OUTPUT RESISTANCE 150 STATE VL2 ...

Page 6

Logic to High-Voltage Level Shifter for TFT LCD TV Display PIN NAME 1 A1 Level Shifter Logic Input 2 B1 Level Shifter Logic Input 3 A2 Level Shifter Logic Input 4 B2 Level Shifter Logic Input 5 ...

Page 7

Logic to High-Voltage Level Shifter for TFT LCD TV Display PIN NAME 39 EN Enable Input. All outputs connect to VCOM when EN is low. Select Input for Two Level/Four Level. Connect CH to VCC for two-level ...

Page 8

Logic to High-Voltage Level Shifter for TFT LCD TV Display 3.3V 0.1μF VCC Figure 1. Typical Operating Circuit 8 _______________________________________________________________________________________ 10V 7V 6V ...

Page 9

Logic to High-Voltage Level Shifter for TFT LCD TV Display VCC LOGIC Figure 2. Functional Diagram _______________________________________________________________________________________ EN VH1 VH2 VCOM VL2 VL1 ...

Page 10

Logic to High-Voltage Level Shifter for TFT LCD TV Display Sequential Operation Connect CH to AGND and ST to VCC for four-level sequential operation LOW or VCC is less than its UVLO or V ...

Page 11

Logic to High-Voltage Level Shifter for TFT LCD TV Display The MAX17079 supply rail voltages should satisfy the startup sequence shown in Figure 4. The supply rail voltages should also satisfy the following conditions: VLS ≥ VH1 ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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