TPS65231 datasheet(5/30 Pages) TI1

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RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

TPS65230, TPS65231

www.ti.com.................................................................................................................................... SLVSA10A – SEPTEMBER 2009 – REVISED SEPTEMBER 2009

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

MIN

NOM

MAX

UNIT

Input voltage range at VIN

10.8

Input voltage range at VINU

4.75

5.5

Input voltage range at VINB

4.75

6.1

Voltage range, EN_BCK1, EN_BCK2, EN_BCK3, EN_USB1/SCL, EN_USB2/SDA,

3.3

nRST, USBFLG1/VCTRL2, USBFLG2/VCTRL3 pins

Input voltage, nRST pin

3.3

Voltage range, INT pin (I2C disabled)

5.4

6.6

Voltage range, INT pin (I2C enabled)

3.3

Ambient operating temperature

°C

VIN = 12 V ±5%, VINB2, VINB3 = 5 V ±5%, VINU = 5 V ±5% TJ = 0°C to 150°C, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INPUT VOLTAGE

VIN

Input supply voltage

10.8

VIN rising

10.8

VBOR

Brown Out Reset threshold

VIN falling

9.3

VIN rising

10.8

UVLO VIN

UVLO threshold – VIN (main supply)

VIN falling

4.7

VINB rising

4.75

UVLO threshold – VINB

UVLO VINB

(BUCK2/BUCK3 supply)

VINB falling

4.25

VINU rising

4.4

UVLO VINU

UVLO threshold – VINU (USB supply)

VINU falling

3.8

INPUT CURRENT

All regulators/USB switches

ICCQ

Input supply current

disabled

LOGIC INPUT LEVEL (SCL, SDA, INT, VCTRL2, VCTRL3)

VIH

Input high level

1.2

VIL

Input low level

0.4

VI2C_disable

I2C disable voltage (INT)

BUCK ENABLE INPUTS (EN_BCK1,2,3)

VEN

Enable threshold

1.2

VENHYS

Enable voltage hysteresis

100

IPULLUP

Pull-up current

tEN = 0.2 ms/nF

Discharge resistor

Ω

Discharge time

Power-up

I2C ENABLE THRESHOLD (INT pin)

I2C enabled if pull-up resistor

VINTTH

I2C enable threshold

is connected to a value

4.8

above threshold

LOGIC OUTPUT LEVEL(SDA, INT, nRST, USBFLG1, USBFLG2 )

Output low level

IOUT = 3 mA through pull-up

0.3

0.4

PWM CONTROLLER (BUCK1)

VOUT

Output voltage range(1)

3.3

6.1

Power good threshold

VOUT rising

(1)

Output voltage range is limited by the minimum and maximum duty cycle. VOUT(min) ~ d(min) x VINPUT and VOUT(max) ~ d(max) x

VINPUT.

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