TS51111

Final Datasheet

Rev 2.2

April 17, 2015

www.semtech.com

8 of 22

Semtech

Proprietary & Confidential

Thermal Characteristics

Symbol

Parameter

Value

Units

36QFN Thermal Resistance Junction to Air (Note 1)

32

°C/W

Note 1: Assumes 3.917 x 3.917 in2 area of 1 oz copper, 4 layer PCB, 4 thermal vias under PAD, and 25°C ambient temperature.

Characteristics

Electrical Characteristics, T

Symbol

Parameter

Condition

Min

Typ

Max

Unit

I

Q

I

Q,Standby,LPM

Quiescent Current in Low Power Mode

Current from PACKP, ILDO = 0, EN_

VREF = EN_SW = EN_PRE = 0

20

30

uA

I

Q,Disable

Quiescent Current in Disable (Direct

Charge, Low Power Mode disabled)

Current from PACKP, ILDO = 0, EN_

VREF = EN_SW = EN_PRE = 0

2

uA

UVLO

V

UVLO-PACK_P

PACKP UVLO

PACKP Rising

2.1

V

HYST

UVLO-PACK_P

PACKP UVLO Hysteresis

400

mV

PDC-PACKP Pass Device

T

SW-ON

Delay from EN_SW to switch ON

200

us

T

SW-OFF

Delay from EN_SW to switch OFF

100

ns

I

PRECHARGE

Precharge Current

Relative to set point

T = 25C; PDC = 3.5V; PACKP = 2.7V

I

I

NOM

I

TC

PRECHARGE

Precharge Current Temperature

Coefficient

25C to 85C

-0.3

%/C

I

LIMIT

Current Limit

At 3.2 A setting

2.2

3.2

A

UART

T

RX

Delay from UART to RX

0.7

us

T

TX

Delay from TX to UART

0.6

us

V

T,UART

UART threshold

0.8

V

V

T,TX

TX threshold

0.8

V

R

dson,RX

RX Switch Resistance

10

Ω

SDA / SCl / EN_MOD Digital Inputs

V

IH

VCORE = 1.5V

Voltage Rising

0.875

V

V

IL

VCORE = 1.5V

Voltage Falling

0.465

V

V

IH

VCORE = 1.8V

Voltage Rising

1.01

V

V

IL

VCORE = 1.8V

Voltage Falling

0.525

V

V

IH

VCORE = 2.5V

Voltage Rising

1.25

V

V

IL

VCORE = 2.5V

Voltage Falling

0.665

V

V

IH

VCORE = 3.3V

Voltage Rising

1.47

V

V

IL

VCORE = 3.3V

Voltage Falling

0.825

V

R

IN

Pin input impedance

Resistance to GND

1M

Ω