AS3611 datasheet(7/26 Pages) AMSCO

7 / 26 page

www.austriamicrosystems.com/Battery-Chargers/AS3610

1.01

6 - 25

AS3610/11

Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s

VRESUME

Resume voltage

VTHRESHOLD = VCHARGE - VRESUME

120

RPMOS

Resistance of PMOS switch

300

Ω

RNMOS

Resistance of NMOS switch

300

Ω

fOSC

Switching frequency

2.7

3.0

3.3

MHz

DMAX

Maximum duty cycle

Smooth transition. No skipmode.

100

TMIN

Minimum ON time of PMOS

Minimum ON time of PMOS. Below this

value, transition to pulseskip mode

nsec

ICOIL

Coil current limit

1.7

Boost Mode Parameter

VBOOST

VBUS regulated voltage in boost

mode

4.9

5.05

5.2

IBOOST

Boost current

2.7<VBAT<4.5 (boost_lowcurr=1)

200

IHBOOST

Boost current (high current mode)

3.2<VBAT<4.5 (boost_lowcurr=0)

500

ICOIL

Coil current limit

0.75

1.5

ISU

Stepup no load current on VBAT

VBAT=4.2V

700

µA

Thermal Limitation

TREG

Thermal current regulation for charger

mode

110

°C

TSHDOWN

Thermal shutdown limit

140

°C

NTC Charging Temperature Range

VBATTEMP_ON

Battery Temperature high level

(50 or 55 ºC) NTCbeta = 4200

ntc_temp=0

500 or

400

VBATTEMP_OFF

Battery Temperature low level

(45 or 50 ºC) NTCbeta = 4200

ntc_temp=1

600 or

500

IBATTEMP

NTC Bias Current

100k

Ω NTC

-14%

+14%

IBATTEMP

NTC Bias Current

10k

Ω NTC

-10%

150

+10%

IO characteristics

VIL

SCL/CHG_DET, SDA/OTG_BOOST,

USB500, XEN

Low Level input voltage

-0.3

0.4

VIH

SCL/CHG_DET, SDA/OTG_BOOST,

USB500, XEN

High Level input voltage

1.4

VBAT

Table 3. Operating Conditions

Symbol

Parameter

Notes

Min

Typ

Max

Unit

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