TPS65921 datasheet(2/58 Pages) TI1

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TPS65921

SWCS048F – MARCH 2010 – REVISED MARCH 2012

www.ti.com

ABSOLUTE MAXIMUM RATINGS

(1)

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

PARAMETER

TEST CONDITIONS

MIN

NOM

MAX

UNIT

Main battery supply

0.0

5.0

voltage(2)

Where supply represents the voltage

Voltage on any input(3)

applied to the power supply pin

–0.3

1.0 × Supply + 0.3

associated with the input(4)

VBUS input

–0.3

Storage temperature range

–55

125

°C

Operating ambient

–40

°C

temperature (TA)

Operating junction

Absolute maximum rating

–40

125

°C

temperature (TJ)

Operating junction

For parametric compliance

–40

150

°C

temperature (TJ)

Ambient temperature for

With maximum 125°C as junction

–40

°C

parametric compliance

temperature (TJ)

(1)

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device.

(2)

The product will have negligible reliability impact if voltage spikes of 5.2 V occur for a total (cumulative over lifetime) duration of 10

milliseconds.

(3)

Excepts VBAT input pads and VBUS pad.

(4)

Supply equals the reference level of each pin.

RECOMMENDED OPERATING CONDITIONS

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

PARAMETER

MIN

TYP

MAX

UNIT

Power and USB Path

VBAT/VBAT.USB main battery supply voltage and

2.7

3.6

4.5

VBUS

HFCLKIN Input Clock

Frequency 1/tC(HFCLKIN)

19.2, 26 or 38.4

MHz

0.55 ×

Pulse duration, HFCLKIN low or high (BP)

0.45 × tC(HFCLKIN)

tC(HFCLKIN)

HFCLKIN stability

–150

150

ppm

Rise time of HFCLKIN (BP)

Fall time of HFCLKIN (BP)

LP/HP (sine wave)

0.3

0.7

1.45

Vpp

Input dynamic range

BP/PD (square wave)

1.85(1)

Vpp

Harmonic content of input signal (with 0.7-VPP amplitude): Second

–25

dBc

component - LP/HP (sine wave)

VIH voltage input

BP (square mode)

0.65 × IO.1P8

high(1)

VIL voltage input low

(1)

BP (square mode)

0.35 × IO.1P8

Crystal Oscillator

Parallel resonance crystal frequency 1/tC(32KHZ)

32.768

kHz

Input voltage, Vin (normal mode)

1.0

1.3

1.55

Crystal tolerance at room temperature, 25°C

–30

ppm

Crystal tolerance versus temperature range (–40°C to 85°C)

–200

200

ppm

Crystal quality factor

13k

54k

Maximum drive power

µW

Operating drive level

0.5

µW

(1)

Bypass input maximum voltage is the same as the maximum voltage provided for the I/O interface (IO.1P8V).

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