EC49016 datasheet(3/8 Pages) ETC2

3 / 8 page

EC49016

Standalone Linear Lithium Battery Charger

E-CMOS Corp. (www.ecmos.com.tw)

Page 3 of 8

2006/05/18

Electrical Characteristics (Continued)

VIN = 5V; TJ = 25°C; unless otherwise specified

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VUV

VCC Undervoltage Lockout Threshold

From VCC Low to High

—

3.4

—

VUVHYS

VCC Undervoltage Lockout Hysteresis

—

170

—

PROG Pin Rising

—

1.25

—

VMSD

Manual Shutdown Threshold Voltage

PROG Pin Falling

—

1.2

—

VCC from Low to High

—

100

—

VASD

VCC – VBAT Lockout Threshold Voltage

VCC from High to Low

—

RPROG = 10k

(4)

—

0.1

—

mA/mA

ITERM

C/10 Termination Current Threshold

RPROG = 2k

—

0.1

—

mA/mA

VPROG

PROG Pin Voltage

RPROG = 10k, Current Mode

0.9

1.03

1.1

ICHRG

CHRG Pin Weak Pull-Down Current

VCHRG = 5V

µA

VCHRG

CHRG Pin Output Low Voltage

ICHRG = 5mA

—

0.35

0.8

VRECHRG

Recharge Battery Threshold Voltage

VFLOAT - VRECHRG

—

100

—

TLIM

Thermal Protection Temperature

—

120

—

°C

tSS

Soft-Start Time

IBAT = 0 to 1000V/RPROG

—

100

—

µs

tRECHARGE

Recharge Comparator Filter Time

VBAT High to Low

—

tTERM

Termination Comparator Filter Time

IBAT Falling Below ICHG/10

—

1000

—

µs

IPROG

PROG Pin Pull-Up Current

—

µA

Note 1:

Exceeding the absolute maximum rating may damage the device.

Note 2

: The device is not guaranteed to function outside its operating rating.

Note 3:

Supply current includes PROG pin current (approximately 100µA) but does not include any current delivered to the

battery through the BAT pin (approximately 100mA).

Note 4:

ITERM is expressed as a fraction of measured full charge current with indicated PROG resistor.

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