AFE4403 datasheet(6/97 Pages) TI

6 / 97 page

AFE4403

SBAS650B – MAY 2014 – REVISED JULY 2014

www.ti.com

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

PARAMETER

MIN

MAX

UNIT

SUPPLIES

RX_ANA_SUP

AFE analog supply

2.0

3.6

RX_DIG_SUP

AFE digital supply

2.0

3.6

TX_CTRL_SUP

Transmit controller supply

3.0

5.25

[3.0 or (0.75 + VLED + VCABLE)

(1) (2),

H-bridge

5.25

whichever is greater]

LED_DRV_SUP

Transmit LED driver supply

Common anode

[3.0 or (0.5 + VLED + VCABLE)

(1) (2),

5.25

configuration

whichever is greater]

Difference between LED_DRV_SUP and

–0.3

0.3

TX_CTRL_SUP

TEMPERATURE

Specified temperature range

–20

°C

Storage temperature range

–60

150

°C

(1)

VLED refers to the maximum voltage drop across the external LED (at maximum LED current) connected between the TXP and TXN pins

(in H-bridge mode) and from the TXP and TXN pins to LED_DRV_SUP (in the common anode configuration).

(2)

VCABLE refers to voltage drop across any cable, connector, or any other component in series with the LED.

7.4 Thermal Information

AFE4403

THERMAL METRIC(1)

YZP (WCSP)

UNIT

36 BALLS

RθJA

Junction-to-ambient thermal resistance

49.8

RθJC(top)

Junction-to-case (top) thermal resistance

0.2

RθJB

Junction-to-board thermal resistance

8.5

°C/W

ψJT

Junction-to-top characterization parameter

0.8

ψJB

Junction-to-board characterization parameter

8.5

RθJC(bot)

Junction-to-case (bottom) thermal resistance

n/a

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

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