TPS2221 datasheet(3/23 Pages) TI

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TPS2228

TPS2221

SLVS419A – MAY 2002 REVISED SEPTEMBER 2002

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ELECTRICAL CHARACTERISTICS

TJ = –40°C to 100°C, VI(5VIN) = 5 V, VI(3.3VIN) = 3.3 V, VI(1.8VIN) = 1.8 V, all outputs unloaded (unless otherwise noted)(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SWITCH

3.3VIN to XVCC with two switches on

TJ = 25°C, I = 750 mA each

Ω

3.3VIN to XVCC with two switches on

for dual

TJ = 100°C, I = 750 mA each

120

Ω

5VIN to XVCC with two switches on

TJ = 25°C, I = 500 mA each

125

Ω

5VIN to XVCC with two switches on

for dual

TJ = 100°C, I = 500 mA each

160

Ω

Switch resistance

1.8VIN to XVPP/VCORE with two

TJ = 25°C, I = 375 mA each

Ω

Switch resistance

1.8VIN to XVPP/VCORE with two

switches on for dual

TJ = 100°C, I = 375 mA each

120

Ω

3.3VIN to XVPP/VCORE with two

TJ = 25°C, I = 250 mA each

196

260

Ω

3.3VIN to XVPP/VCORE with two

switches on for dual

TJ = 100°C, I = 250 mA each

325

Ω

5VIN to XVPP/VCORE with two

TJ = 25°C, I = 100 mA each

0.9

1.3

Ω

5VIN to XVPP/VCORE with two

switches on for dual

TJ = 100°C, I = 100 mA each

1.6

Ω

RO(XVCC) discharge resistance

Idischarge = 1 mA

0.1

0.5

Ω

RO(XVPP/VCORE) discharge resistance

Idischarge = 1 mA

0.1

0.5

Ω

IO(XVCC)

Limit

(limit is

TJ at 25°C, output powered into a short

1.5

Short circuit

IO(XVCC)

3.3VIN or 5VIN to XVCC

(

the steady

state

value.)

TJ [–40, 100°C], output powered into a short

2.5

IOS Short-circuit

output current(1)

IO(XVPP/VCORE)

Limit

TJ at 25°C, output powered into a short

120

175

output current(1)

IO(XVPP/VCORE)

5VIN to XVPP/VCORE

Limit

TJ [–40, 100°C], output powered into a short

120

300

IO(XVPP/VCORE)

1 8VIN or 3 3VIN to

Limit

TJ at 25°C, output powered into a short

500

680

1.8VIN or 3.3VIN to

XVPP/VCORE

Limit

TJ [–40, 100°C], output powered into a short

500

1250

Trip point T

Rising temperature, not in overcurrent condition

155

165

°C

Thermal shutdown

Trip point, TJ

Overcurrent condition

120

130

°C

Thermal shutdown

Hysteresis

VO(xVCC) = 5 V, 100 mΩ short to GND,

TJ = 25°C

VO(xVCC) = 3.3 V, 100 mΩ short to GND,

TJ = 25°C

Current limit response time(2)(3)

VO(xVPP/VCORE) = 5 V, 100 mΩ short to GND,

TJ = 25°C

µs

VO(xVPP/VCORE) = 3.3 V, 100 mΩ short to GND

TJ = 25°C

VO(xVPP/VCORE) = 1.8 V, 100 mΩ short to GND,

TJ = 25°C

250

II (3.3VIN)

140

Normal operation of

TPS2228

II(5VIN)

VO(xVCC) = VO(xVPP/VCORE) = VI(3.3VIN),

Output pins are floated

µA

TPS2228

II (1.8VIN)

Output pins are floated

µA

I It Q i

II (3.3VIN)

100

Ii Input Quiescent

current

Normal operation of

TPS2221

II(5VIN)

VO(xVCC) = VO(xVPP/VCORE) = VI(3.3VIN),

Output pins are floated

µA

current

TPS2221

II (1.8VIN)

Output pins are floated

µA

Shutdown mode (based

on control data)

II (3.3VIN)

t i

VO(xVCC) = Hi-Z

II (5VIN)

Output pins are floated

µA

VO(xVPP/VCORE) = Hi-Z

II (1.8VIN)

(1) Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately.

(2) Specified by design, not tested in production.

(3) From application of short to 110% of final current limit.

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