API9221

Car/Wall or USB Supply Input Lithium Battery Charger

with OVP USB Bypass and 10mA LDO

API9221

Document number: DS32204 Rev. 1 - 2

6 of 17

www.diodes.com

May 2010

© Diodes Incorporated

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

IUSB Pin Output Voltage

1.22

1.25

1.28

V

VUSB Constant Current

180

232

260

mA

VUSB Trickle Charge Current

then given as a % of

15

17

19

%

-

-

%

DC and USB End-of-Charge

Threshold

40

55

70

mA

PRECONDITIONING CHARGE THRESHOLD

Preconditioning Charge

Threshold Voltage

2.5

2.6

2.7

V

RECHARGE THRESHOLD

Recharge Threshold Voltage

3.8

3.9

4.0

V

PROTECTIONS

VDC Overvoltage Level

6.7

6.9

7.1

V

VDC Overvoltage Hysteresis

-

240

340

mV

VUSB Overvoltage Level

5.3

5.4

5.55

V

VUSB Overvoltage

Hysteresis

-

150

200

mV

Short Circuit (USB_BYP)

-

400

600

mA

BYPASS FETS

Resistance VUSB to

USB_BYP

Measured at 200mA,

-

1.16

2.0

Ω

Dropout VUSB to USB_BYP

-

200

-

mV