TPS2140IPWPR datasheet(10/33 Pages) TI1

10 / 33 page

TPS2140, TPS2141

TPS2150, TPS2151

SLVS399A − JANUARY 2002 − REVISED MAY 2006

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electrical characteristics over recommended operating junction temperature range,

VI(SW_IN) = 3.3 V for TPS2140/50, VI(SW_IN) = 5 V for TPS2141/51, VI(LDO_IN) =5V, all outputs unloaded

(unless otherwise noted) (continued)

logic section (SW_EN, SW_EN, LDO_EN, ADJ, SW_PG, LDO_PG)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

II(/SW_EN), source

VI(/SW_EN) = 0 V

Logic input current

II(SW_EN), sink

VI(SW_EN) = 5 V

µA

Logic input current

II(LDO_EN)

VI(EN_LDO) = 0 V – 5.5 V

−1

µA

VIH_MIN(/SW_EN)

Logic input high level

VIH_MIN(SW_EN)

Logic input high level

VIH_MIN(LDO_EN)

VIL_MAX(/SW_EN)

0.8

Logic input low level

VIL_MAX(SW_EN)

0.8

Logic input low level

VIL_MAX(LDO_EN)

0.8

Floating input voltage

VIF(/SW_EN)

SW_EN pin is open

2.5

Floating input voltage

VIF(SW_EN)

SW_EN pin is open

0.4

LDO feedback input current

II(ADJ)

VI(ADJ) = 0 V – 5.5 V

−1

µA

SW_PG sense threshold, VTH_SW

TPS2140, TPS2150

Percentage of VI(SW_IN)

85%

88%

90%

SW_PG sense threshold, VTH_SW

TPS2141, TPS2151

Percentage of VI(SW_IN)

85%

88%

90%

LDO_PG sense threshold, VTH_LDO

A percentage of output voltage set point

VSET, derived from a resistor divider

92%

94%

96%

PG hysteresis (all)‡

VTH_HYS

2.5%

3.5%

SW_PG rising edge deglitch‡

td_SWPG_rise

2.5

PG falling edge deglitches times (all)‡

td_PG_fail

150

µs

SW_PG minimum output high state

voltage

VOH_MIN(SW_PG)

Source current IO(SW_PG) = 1 mA,

VI(SW_OUT) > VTH_SW

VI(SW_IN)

–0.5

SW_PG maximum output low state

voltage

VOL_MAX(SW_PG)

Sink current IO(SW_PG) = 1 mA,

VI(SW_OUT) < VTH_SW

0.5

LDO_PG maximum output low state

voltage

VOH_MIN(LDO_PG)

Sink current IO(SW_PG) = 1 mA,

VI(LDO_OUT) < VTH_LDO

0.5

LDO_PG leakage current

ILK(LDO_PG)

VO(LDO_PG) = 5.5 V

µA

‡ Not tested in production.

thermal shutdown characteristics

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Low thermal shutdown

Over temperature trip point‡

Switch and/or LDO in current limit

125

137

°C

Low thermal shutdown

(whole device)

Hysteresis‡

Switch and/or LDO in current limit

°C

High thermal shutdown

Over temperature trip point‡

Switch and LDO are not in current limit

155

170

°C

High thermal shutdown

(whole device)

Hysteresis‡

Switch and LDO are not in current limit

°C

‡ Not tested in production.

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