PCA9512DP datasheet(11/16 Pages) PHILIPS

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Philips Semiconductors

Product data sheet

PCA9512

Level shifting hot swappable I2C and SMBus buffer

2004 Oct 05

3. The connection circuitry always regulates its output to a higher voltage than its input. The magnitude of this offset voltage as a function of

the pull-up resistor and VCC voltage is shown in the Typical Performance Characteristics section.

4. Guaranteed by design, not production tested.

5. CB = total capacitance of one bus line in pF.

6. Enable time is from power-up of VCC and VCC2 ≥ 2.7 V to when idle or stop time begins.

7. Idle time is from when SDAx and SCLx are HIGH after enable time has been met.

TYPICAL PERFORMANCE CHARACTERISTICS

SW02343

TEMPERATURE (

°C)

–40

+25

+85

1.5

1.3

1.1

0.9

0.7

1.4

1.2

1.0

0.8

VCC = 5.5 V

VCC = 2.7 V

VCC = 3.3 V

Figure 10. ICC versus Temperature (Note 1)

SW02346

TEMPERATURE (

°C)

–40

+25

+85

VCC = 5 V

VCC = 2.7 V

VCC = 3.3 V

Figure 11. IPULLUPAC versus Temperature

VCC = 3.3 V

SW02344

TEMPERATURE (

°C)

–40

+25

+85

460

440

400

380

VCC = 2.7 V

VCC = 5.5 V

CIN = COUT = 100 pF

RPULLUPIN = RPULLUPOUT = 10 kΩ

420

Figure 12. Input–output tPHL versus Temperature

SW02154

RPULLUP (Ω)

10,000

20,000

30,000

100

40,000

VCC = 3.3 V OR 5.5 V

Figure 13. Connection circuitry VOUT – VIN

NOTE:

1. ICC2 (Pin 1) typical current averages 0.1 mA less than ICC on Pin 8.

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