TLC5970RHPR datasheet(7/48 Pages) TI

7 / 48 page

TLC5970

www.ti.com

SBVS140 – MARCH 2010

ELECTRICAL CHARACTERISTICS (continued)

At VCC = 10 V to 36 V and TA = –40°C to +85°C. Typical values at VCC = 24 V, FB = 17 V, and TA = +25°C, unless otherwise

noted.

TLC5970

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIFFERENTIAL INTERFACE BLOCK

Positive-going input threshold

At SDTA-SDTB or SCKA-SCKB pins. Common-mode,

VITP

0.2

voltage

VIB = 1.5 V (see Figure 4)

Negative-going input threshold

At SDTA-SDTB or SCKA-SCKB pins. Common-mode,

VITN

–0.2

voltage

VIB = 1.5 V (see Figure 4)

VITHYS

Hysteresis voltage (|VITP – VITN|)

Common-mode

110

At SDTA/SDTB/SCKA/SCKB pins. VIH = 12 V

(other inputs at 0 V), VCC = 24 V

At SDTA/SDTB/SCKA/SCKB pins. VIH = 12 V

II1

(other inputs at 0 V), VCC = 0 V

Input current

At SDTA/SDTB/SCKA/SCKB pins. VIH = –7 V

II2

–3

–1.2

(other inputs at 0 V), VCC = 24 V

At SDTA/SDTB/SCKA/SCKB pins. VIH = –7 V

II3

–3

–1

(other inputs at 0 V), VCC = 0 V

At SDTY-SDTZ or SCKY-SCKZ pins.

VOD

Differential output voltage

1.8

1/2 × RLDIF = 51 Ω (see Figure 6)

Change in magnitude of differential

At SDTY-SDTZ or SCKY-SCKZ pins.

ΔVOD

–0.2

0.2

output voltage(5)

1/2 × RLDIF = 51 Ω (see Figure 6)

Steady-state common-mode output

At SDTY-SDTZ or SCKY-SCKZ pins.

VOC

1.5

VREG/2

voltage

1/2 × RLDIF = 51 Ω (see Figure 6)

Change in magnitude of steady-state

At SDTY-SDTZ or SCKY-SCKZ pins.

ΔVOC

–0.2

0.2

common-mode output voltage(5)

1/2 × RLDIF = 51 Ω (see Figure 6)

Internal resistor between differential

At SDTA-SDTB or SCKA-SCKB pins.

RINT

input pair

A pins = 0 V, B pins = 1.8 V

At SDTY-SDTZ or SCKY-SCKZ pins. VCC = 0 V,

Output current with power off

–7 V

≤ SDTY/SDTZ/SCKY/SCKZ ≤ 12 V, 1 pin sweep,

–10

±1

µA

all other outputs are open

(5)

ΔVOD and ΔVOC are the changes in the steady-state magnitude of VOD and VOC, respectively, that occur when the output data change

from a high level to a low level.

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