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SMB239 Datasheet(PDF) 26 Page - Summit Microelectronics, Inc.

Part # SMB239
Description  Programmable Linear Battery Charger in 1.3 x 2.1 uCSP
PDF  30 Pages
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Manufacturer  SUMMIT [Summit Microelectronics, Inc.]
Direct Link  http://www.summitmicro.com
Logo SUMMIT - Summit Microelectronics, Inc.

SMB239 Datasheet(HTML) 26 Page - Summit Microelectronics, Inc.

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SMB239
Summit Microelectronics, Inc
2129 3.0 2/23/2009
26
Table 14 – Volatile Configuration & Charger Enable – 8-bit (address: 31h) – Volatile
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Volatile Configuration
0
X
X
X
X
X
X
X
Volatile writes to h00-h07 are disabled
1
X
X
X
X
X
X
X
Volatile writes to h00-h07 are enabled
(if CFG h0E[0]=1)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Charger Enable
X
X
X
0
X
X
X
X
Enabled if 0F[7]=0; Disabled if 0F[7]=1
X
X
X
1
X
X
X
X
Disabled if 0F[7]=0; Enabled if 0F[7]=1
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
USB500/100 Select
(This bit only has an effect when CFG
07[0]=1)
X
X
X
X
0
X
X
X
USB 100mA current level
X
X
X
X
1
X
X
X
USB 500mA current level
Table 15 – Battery status register – 8-bit (address: 36h) – Volatile (read only)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Charging Status
1
X
X
X
X
X
X
X
Charger has completed at least 1 successful
charge since being enabled
X
1
X
X
X
X
X
X
Charger has completed at least 1 re-charge
cycle since being enabled
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Timeout Status
X
X
0
0
X
X
X
X
No timeouts have occurred
X
X
0
1
X
X
X
X
Pre-charge timeout
X
X
1
0
X
X
X
X
Fast-charge timeout
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Charging Status
X
X
X
X
X
0
0
X
Idle
X
X
X
X
X
0
1
X
Pre-charging
X
X
X
X
X
1
0
X
Fast-charging
X
X
X
X
X
1
1
X
Charge termination
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Charging Status
X
X
X
X
X
X
X
1
Charger is enabled
Table 16 – Battery fault register – 8-bit (address: 37h) – Volatile (read only)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Fault Output
1
X
X
X
X
X
X
X
Battery missing
X
1
X
X
X
X
X
X
Charging error
X
X
1
X
X
X
X
X
Battery over-voltage condition
X
X
X
1
X
X
X
X
Charger over-voltage condition
X
X
X
X
1
X
X
X
Charger under-voltage condition
X
X
X
X
X
X
X
1
Termination Detect Current Threshold has
been hit
Note 4: Never Write to Reserved bits.
CONFIGURATION STATUS REGISTERS



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