SMB135E-470V View Datasheet(PDF) - Summit Microelectronics

Part Name

Description

View to exact match

SMB135E-470V

Programmable Switch-mode, USB/AC Input Li+ Battery Charger with TurboCharge™ Mode*

Summit Microelectronics 

SMB135

DC OPERATING CHARACTERISTICS (CONTINUED)

TA= -30°C to +85°C, VIN = +5.0V, VFLOAT = +4.2V unless otherwise noted. All voltages are relative to GND.

Symbol Parameter

Conditions

Min Typ Max Unit

Battery Charger

VRECH

CMR

Recharge threshold voltage

Common mode range

Current Sense Amplifier,

Note 4

115

mV

2

VBATT

V

THI

Charge cutoff temp (high)

Adjustable, conditions per

typical application

30

65

oC

TLO

Charge cutoff temp (low)

Adjustable, conditions per

typical application

-20

15

oC

Note 4: Guaranteed by Design.

AC OPERATING CHARACTERISTICS

TA= -30°C to +85°C, VIN = +5.0V, VFLOAT = +4.2V unless otherwise noted. All voltages are relative to GND.

Symbol

Description

Conditions

Min Typ Max Unit

Oscillator

fOSC

∆fOSC

Frequency range

Frequency accuracy

250kHz steps (3 settings)

fOSC=1.25MHz (default), T=0oC to

+70oC

750

1.125

1.250

1250

1.375

kHz

MHz

tSTART

tGLITCH

Start-up time

Glitch filter

Note 5

Disabled

Enabled

20

ms

0

msec

250

msec

tHOLDOFF

Hold-off time

Short

Long

0

1 msec

256

msec

tFCTO

Fast-charge Timeout

tFCTO = 350min

tFCTO = 699min

tFCTO = 1398min

-15

tFCTO

+15

%

tPCTO = 44min

tPCTO

Pre-charge Timeout

tPCTO = 87min

-15

tPCTO

+15

%

tPCTO = 175min

Note 5: This is the time it takes for the device to be ready for I2C communication or charging after power-up (including coming out of shutdown).

When charging is enabled, actual charging begins after the hold-off timer has expired.

Summit Microelectronics, Inc

2106 3.1 11/4/2008

8

Share Link: