TPS60230RGTR datasheet(3/15 Pages) TI

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ELECTRICAL CHARACTERISTICS

TPS60230

SLVS516A – MAY 2004 – REVISED JUNE 2004

I = 3.6 V, EN1 = EN2 = VI, TA = -40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY VOLTAGE AND CURRENT

Input voltage range

IO = 0 mA to 75 mA

2.7

6.5

VI = 4.2 V, x1-mode, EN1 = EN2 = 1, ISET = 20 µA

200

µA

Operating quiescent current

IO = 0 mA, x1.5-mode

2.1

ISD

Shutdown current

EN2 = EN1 = GND

0.1

µA

CHARGE PUMP STAGE

VOUT

Overvoltage limit

LED1 unconnected, VI = 4.2 V

5.5

Startup time

CO = 1 µF, IDX≥ 0.9 IDX, set

375

µs

Softstart duration

160

µs

Switching frequency

0.75

1.25

MHz

Efficiency

VI = 3.7 V, ILED = 15 mA each, VDX = 3.1 V

83%

Shutdown temperature

Temperature rising

160

°C

Shutdown temperature hysteresis

°C

Input current limit

EN2 = EN1 = 1, ISET = 100 µA

350

CURRENT SINKS

Recommended maximum current per cur-

3.2 V

≤ V

I≤ 6.5 V

IDx

rent sink

Current into each current sink when Iset is

IDx

3.0 V

≤ V

I≤ 6.5 V, ISET shorted to GND

shorted to GND

Current matching between any two outputs

VDx = 3.1 V, TA = 25°C

–2% 0.4%

3.2 V

≤ V

I≤ 6.5 V, VDx = 3.1 V, EN1 = EN2 = 1,

±3%

Line regulation

ISET = 80 µA

EN2 = 0, EN1 = 1

200

VISET

Reference voltage for current set

EN2 = 1, EN1 = 0

400

EN2 = 1, EN1 = 1

580

600

620

Iset

Recommended ISET pin current range

130

µA

IDx to Iset current ratio

EN2 = EN1 = 1, ISET = 80 µA

230

260

280

EN2 = 0, EN1 = 1

200

Vsource

Voltage at Dx to GND

EN2 = 1, EN1 = 0

300

EN2 = 1, EN1 = 1

400

ENABLE 1, ENABLE 2

VIH

EN1, EN2 high level input voltage

1.3

VIL

EN1, EN2 low level input voltage

0.3

EN1, EN2 trip point hysteresis

IIKG

EN2 input leakage current

EN1, EN2 = GND or EN2 = VI, VI = 6.5 V

0.01

µA

EN1 input current

EN1 = VI, VI = 4.2 V

µA

V(UVLO)

Undervoltage lockout threshold

Input voltage falling

2.1

Undervoltage lockout hysteresis

Frequency range at PWM

kHz

Recommended ON-time for PWM signal

2.5

µs

Delay time when EN1 = EN2 go to GND after which

Shutdown delay time

0.5

0.85

1.5

the TPS60230 shuts down completely

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