LP3918TLSLASHNOPB datasheet(7/39 Pages) TI1

7 / 39 page

LP3918

www.ti.com

SNVS476D – AUGUST 2007 – REVISED MAY 2013

General Electrical Characteristics

Unless otherwise noted, VIN ( = VIN1 = VIN2 = BATT) = 3.6V, GND = 0V, CVIN1-2=10µF, CLDOX=1µF. Typical values and limits

appearing in normal type apply for TJ = 25°C. Limits appearing in boldface type apply over the entire junction temperature

range for operation, Ta = TJ = −40°C to +125°C.

(1)

Limit

Symbol

Parameter

Condition

Typ

Units

Min

Max

IQ(STANDBY)

Standby Supply Current

VIN= 3.6V, UVLO on, internal

logic circuit on, all other

µA

circuits off

Power Monitor Functions

Battery Under-Voltage Lockout

VUVLO-R

Under Voltage Lock-out

VIN Rising

2.85

2.7

3.0

Thermal Shutdown

TSD Threshold

(2)

160

°C

LOGIC AND CONTROL INPUTS (LDO2 at 3.0V)

VIL

Input Low Level

PS_HOLD, SDA, SCL,

0.25×VLDO2

RX_EN, TCXO_EN, TX_EN

PWR_ON, HF_PWR

0.25×VBATT

VIH

Input High Level

PS_HOLD, SDA, SCL,

0.75×VLDO2

RX_EN, TCXO_EN, TX_EN

PWR_ON, HF_PWR

0.75×VBATT

IIL

Logic Input Current

All logic inputs except

-5

µA

PWR_ON and HF_PWR

≤ VINPUT ≤ VBATT

RIN

Input Resistance

PWR_ON, HF_PWR Pull-

500

Ω

Down resistance to GND(2)

LOGIC AND CONTROL OUTPUTS (LDO2 at 3.0V)

VOL

Output Low Level

PON_N, RESET_N, SDA,

0.25×VLDO2

ACOK_N

IOUT = 2mA

VOH

Output High Level

PON_N, RESET_N,

0.75×VLDO2

ACOK_N

IOUT = 2mA

(Not applicable to Open

Drain Output SDA)

(1)

All electrical characteristics having room-temperature limits are tested during production with TJ = 25°C. All hot and cold limits are

specified by correlating the electrical characteristics to process and temperature variations and applying statistical process control.

(2)

Specified by design. Not production tested.

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