SMB218 View Datasheet(PDF) - Summit Microelectronics

Part Name

Description

Manufacturer

SMB218

Six-Channel Programmable DC-DC Power Managers with Battery Charger

Summit Microelectronics 

PLEASE NOTE: The SMB118 has entered End-of-Life.

SMB118/218

DC OPERATING CHARACTERISTICS (CONTINUED)

(Over commercial operating conditions, unless otherwise noted. All voltages are relative to GND.)

Symbol

Parameter

Notes

Min

Typ

Max

Battery Charger (Note 3), DOCK_DC=5V

VDockdc

VPRECHG

Input Voltage

Precharge voltage threshold

range

VBATT=3.6V

5.0

Programmable: 100mV steps 2.500

3.200

VPRECHG_ACC

Precharge voltage threshold

accuracy

VBATT rising, VPRECHG= 2.5V

and 3.2V

±20

IPRECHG

Nominal precharge current

range

RCSB=0.1Ω , 15mA steps

25

250

∆IPRECHG

ICHG

∆ICHG

VFLT

∆VFLT

VFLT_HYST

Precharge current tolerance

Nominal Fast charge current

Fast charge current tolerance

Float voltage range

Float voltage tolerance

Float voltage hysteresis

(recharge threshold)

IPRECHG = 100mA

RCSB=0.1Ω , 60mA steps

ICHG = 520mA

20mV steps

VFLT = 4.2V

VBATT falling, VFLT - VFLT_HYST

70

100

485

4.000

-1.2

100

520

±0.5

100

130

1000

565

4.620

+1.2

ITERM

Charge termination current

range

RCSB=0.1Ω, 15mA steps

100

145

∆ITERM

THI

TLO

TTSENSE

Tprecharge

Tcharge

VPDDCTH

Termination current tolerance

Charge cutoff temp (high)

Charge cutoff temp (low)

THERM bias current

Precharge timer duration

Charge timer duration

Programmable DOCK_DC

threshold range

ITERM = 100mA

5oC steps

5oC steps

Adjustable (3 setpoints)

Adjustable (3 setpoints)

Programmable in 200 mV

increments

50

100

170

+30

+65

-20

+15

80

100

130

2621

20972

3.4

4.8

VPDDCTHACC DOCK_DC threshold accuracy VPDDCTH = 4.6V

-4

+4

Unit

V

V

mV

mA

mA

mA

mA

V

%

mV

mA

mA

oC

oC

µA

s

s

V

%

Summit Microelectronics, Inc

2107 3.0 10/15/2008

13

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