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Api9221, New prod uc t electrical characteristics – Diodes API9221 User Manual

Page 5

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API9221

CAR/WALL or USB SUPPLY INPUT LITHIUM BATTERY

CHARGER with OVP USB BYPASS and 10mA LDO

API9221

Document number: DS32204 Rev. 2 - 2

5 of 15

www.diodes.com

November 2011

© Diodes Incorporated

NEW PROD

UC

T

Electrical Characteristics

API9221 is tested at VDC = VUSB = 5V at an ambient temperature of +25°C unless otherwise noted.






Symbol

Parameter

Test Conditions

Min

Typ.

Max

Unit

CHARGER POWER-ON THRESHOLDS

VPO

R

Rising VUSB/VDC Threshold

3.4 3.9 4.2 V

VPO

F

Falling VUSB/VDC Threshold

3.2 3.7 4.0 V

INPUT VOLTAGE OFFSET

VOS

HC

Rising VDC or VUSB, relative
to V

BAT

V

BAT

= 4.0V, use

CHG

pin to indicate the
comparator output

- 150

250

mV

VOS

LC

Falling VDC or VUSB, relative
to V

BAT

V

BAT

= 4.0V, use

CHG

pin to indicate the
comparator output

20 80 - mV

STANDBY CURRENT

I

STANDBY

BAT Pin Sink Current

EN = HIGH or both inputs

are floating

- 0.05 0.5

µA

I

VDC

VDC Pin Supply Current

EN = HIGH, I

LDO

= 0

- 380

460

µA

I

VUSB

VUSB Pin Supply Current

EN = HIGH, USB_BYP

disconnected

- 330

400

µA

I

VDC_VUSB

VDC/VUSB Pin Supply Current

EN = LOW, I

LDO

= 0,

USB_BYP disconnected

- 0.63 1.1

mA

VOLTAGE REGULATION

V

BATMAX

Final Output Voltage, BAT Pin

Load = 10mA

4.158

4.2

4.242

V

Load = 10mA

(T

J

= +25°C)

4.174 4.2 4.226 V

R

DS(ON)_VDC

VDC Linear ON-resistance

V

BAT

=3.8V, I

VDC

= 0.3A,

(T

J

= +25°C)

- 550 - m

R

DS(ON)_VUSB

VUSB Linear ON-resistance

V

BAT

= 3.8V, I

USB

= 0.3A,

(T

J

= +25°C)

- 550 - m

CHARGE CURRENT

V

IVDC

VDC Pin Output Voltage

V

BAT

= 3.8V

1.22 1.25 1.28 V

I

VDC_CHRG

VDC Constant Current

R

IVDC

= 12.4k

Ω,

V

BAT

= 2.7V to 3.8V

450 550 600 mA

I

VDC_TRKL

VDC Trickle Charge Current

R

IVDC

= 12.4k

Ω,

V

BAT

= 2.2V, given as a %

of the I

VDC_CHARGE

15 17 19 %