SMB139 SUMMIT Microelectronics, Inc:, SMB139 Datasheet - Page 3
SMB139
Manufacturer Part Number
SMB139
Description
? Summit Microelectronics, Inc. 2005 ? 757 N. Mary Avenue ? Sunnyvale Ca 94085 ? Phone 408 523-1000 ? Fax 408 523-1266 Http //www.summitmicro.com/ 2121 3.0 6/19/2008 1 Programmable Linear Battery Charger
Manufacturer
SUMMIT Microelectronics, Inc:
Datasheet
1.SMB139.pdf
(27 pages)
Summit Microelectronics, Inc
INTERNAL BLOCK DIAGRAM
Figure 2 – Internal block diagram of the SMB139 programmable linear battery charger.
TRICKLE
TRICKLE
CHGSET
CHGSET
THERM
THERM
SENSE
SENSE
BATT
BATT
SDA
SDA
SCL
SCL
EN
EN
Voltage
Voltage
Prog.
Prog.
Float
Float
Prog. Cold Limit
Prog. Cold Limit
Prog. Hot Limit
Prog. Hot Limit
EEPROM
EEPROM
Inte rface
Inte rface
Temperature Limit
Temperature Limit
Inte rnal
Inte rnal
2121 3.0 6/19/2008
Control
Control
Registers
Registers
Control
Control
Charge
Charge
VDDCAP
VDDCAP
Inte rnal VDD
Inte rnal VDD
Regulator
Regulator
Programmable
Programmable
Curre nt
Curre nt
Control
Control
WELL
WELL
SMB139
VDDCAP
VDDCAP
IN
IN
OUT
OUT
3
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