LTC4061 datasheet(3/20 Pages) LINER

3 / 20 page

LTC4061

4061fa

ELECTRICAL CHARACTERISTICS The ● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VCC = 5V, unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VUT

User Termination Mode Threshold

VTIMER from Low to High

3.9

4.2

Voltage

Hysteresis

IDETECT

Charge Current Detection Threshold

RDET = 1k, 0 ≤ TA ≤ 85°C

100

110

RDET = 2k, 0 ≤ TA ≤ 85°C

RDET = 10k, 0 ≤ TA ≤ 85°C

RDET = 20k, 0 ≤ TA ≤ 85°C

3.8

6.2

ΔVRECHRG

Recharge Threshold Voltage

VFLOAT – VRECHRG, 0 ≤ TA ≤ 85°C

100

135

tSS

Soft-Start Time

IBAT from 0 to ICHRG

100

µs

tTERM

Termination Comparator Filter Time

Current Termination Mode

0.8

1.5

2.5

tRECHRG

Recharge Comparator Filter Time

tTIMER

Charge Cycle Time

CTIMER = 0.1µF

2.55

3.45

R⎯C⎯/⎯5

⎯C⎯/5 Pin Pull-Down Resistor

●

3.4

MΩ

V⎯C⎯/⎯5

⎯C⎯/5 Input Threshold Voltage

⎯C⎯/⎯5 Rising, 4.3V < VCC < 8V

0.4

0.7

Hysteresis

VNTC-HOT

NTC Pin Hot Threshold Voltage

VNTC Falling

0.35 • VCC

VNTC Rising

0.36 • VCC

VNTC-COLD

NTC Pin Cold Threshold Voltage

VNTC Rising

0.76 • VCC

VNTC Falling

0.75 • VCC

VNTC-DIS

NTC Pin Disable Threshold Voltage

VNTC Falling

100

Hysteresis

f⎯C⎯H⎯R⎯G

NTC Fault Pulsing Frequency

Current/User Termination Mode

1.5

Time Termination Mode CTIMER = 0.1µF

1.5

TLIM

Junction Temperature in Constant

105

°C

Temperature Mode

RON

Power FET “ON” Resistance

VBAT = 3.85V, ICC = 175mA, RPROG = 2k

375

mΩ

(Between VCC and BAT)

Note 1: Absolute Maximum Ratings are those values beyond which the life

of the device may be impaired.

Note 2: The LTC4061 is guaranteed to meet performance speciﬁcations

from 0°C to 70°C. Speciﬁcations over the – 40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 3: Failure to correctly solder the exposed pad of the package to the

PC board will result in a thermal resistance much higher than 40°C/W.

Note 4: Supply current includes PROG pin current and IDET pin current

(approximately 100µA each) but does not include any current delivered to

the battery through the BAT pin (approximately 100mA).

Note 5: This IC includes overtemperature protection that is intended

to protect the device during momentary overload conditions.

Overtemperature protection will become active at a junction temperature

greater than the maximum operating temperature. Continuous operation

above the speciﬁed maximum operating junction temperature may impair

device reliability.

LTC4061 Scheda tecnica(PDF) 3 Page - Linear Technology

LTC4061 Scheda tecnica(HTML) 3 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Scheda tecnica Scarica

Link URL