NXP Semiconductors

NVT2001; NVT2002

Bidirectional voltage level translator for open-drain and push-pull applications

7 Application design-in information

The NVT2001/02 can be used in level translation applications for interfacing devices or systems operating at

different interface voltages with one another. The NVT2001/02 is ideal for use in applications where an open-

drain driver is connected to the data I/Os. The NVT2001/02 can also be used in applications where a push-pull

driver is connected to the data I/Os.

7.1 Enable and disable

The NVT20xx has an EN input that is used to disable the device by setting EN LOW, which places all I/Os in the

high-impedance state.

002aae134

A1

A2

VREFA

GND

3

4

VREFB

1

6

5

B1

B2

8 EN

SW

SW

NVT20xx

7

RPU

RPU

Vpu(D) = 3.3 V(1)

I2C-BUS

DEVICE

SCL

SDA

VCC

GND

2

Vref(A) = 1.8 V(1)

RPU

RPU

I2C-BUS

CONTROLLER

SCL

SDA

VCC

GND

1. The applied voltages at Vref(A) and Vpu(D) should be such that Vref(B) is at least 1 V higher than Vref(A) for best translator

operation.

Figure 6. Typical application circuit (switch always enabled)

Refer to Figure 6.

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

Vref(B)

reference voltage (B)

Vref(A) + 0.6

2.1

5

V

VI(EN)

input voltage on pin EN

Vref(A) + 0.6

2.1

5

V

Vref(A)

reference voltage (A)

0

1.5

4.4

V

Isw(pass)

pass switch current

-

14

-

mA

Iref

reference current

transistor

-

5

-

μA

Tamb

ambient temperature

operating in

free-air

-40

-

+105

°C

Table 5. Application operating conditions

[1]

All typical values are at Tamb = 25 °C.

NVT2001_NVT2002

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Product data sheet

Rev. 4.4 — 22 May 2023

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