SMB118 SUMMIT Microelectronics, Inc:, SMB118 Datasheet - Page 13

• Manufacturer Part Number: SMB118
• Description: Six-channel Programmable Dc-dc Power Managers With Battery Charger
• Manufacturer: SUMMIT Microelectronics, Inc:

Summit Microelectronics, Inc
DC OPERATING CHARACTERISTICS (CONTINUED)
(Over commercial operating conditions, unless otherwise noted. All voltages are relative to GND.)
Battery Charger
V
V
V
I
∆I
I
∆I
V
∆V
V
I
T
T
T
T
T
V
PRECHG
CHG
TERM
HI
LO
TSENSE
precharge
charge
Dockdc
PRECHG
PRECHG_ACC
FLT
FLT_HYST
PDDCTH
Symbol
PRECHG
CHG
FLT
Input Voltage
Precharge voltage threshold
range
Precharge voltage threshold
accuracy
Nominal precharge current
range
Precharge current tolerance
Nominal Fast charge current
Fast charge current tolerance
Float voltage range
Float voltage tolerance
Float voltage hysteresis
(recharge threshold)
Charge termination current
range
Charge cutoff temp (high)
Charge cutoff temp (low)
THERM bias current
Precharge timer duration
Charge timer duration
Programmable DOCK_DC
threshold range
(Note 3), DOCK_DC=5V
Parameter
VBATT=3.6V
Programmable: 100mV steps
VBATT rising, V
and 3.2V
R
I
R
I
20mV steps
V
VBATT falling, V
R
5
5
Adjustable (3 setpoints)
Adjustable (3 setpoints)
Programmable in 200 mV
increments
PRECHG
CHG
2107 2.4 5/5/2008
o
o
FLT
CSB
CSB
CSB
C steps
C steps
= 520mA
=0.1Ω , 15mA steps
=0.1Ω , 60mA steps
=0.1Ω, 15mA steps
= 4.2V
= 100mA
Notes
PRECHG
FLT
- V
= 2.5V
FLT_HYST
2.500
4.000
Min
100
490
-1.2
100
+30
-20
3.4
25
80
Preliminary Specification
20972
2621
±0.5
Typ
±20
100
520
100
100
SMB118/218
5.0
3.200
4.620
1000
Max
+1.2
250
120
550
145
+65
+15
4.8
Unit
mA
mV
mA
mA
mA
mV
mA
µA
o
o
%
V
V
V
V
s
s
C
C
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