U3501BM Datasheet, PDF (17/20 Pages) TEMIC Semiconductors – Cordless Telephone Signal Processor

U3501BM
Battery Management
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Max batlow}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Min batlow over switch}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Max bathigh}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Min bathigh}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Adjust step
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ^{(Max - Min)}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ^{(MINBL - SWOFF)}
DA0 to 6 = 1, RBAT = 1
DA0 to 6 = 27 BIN, RBAT = 1
DA0 to 6 = 1, RBAT = 0
DA0 to 6 = 0, RBAT = 0
3.8
3.95
4.1
V
3.05
3.2
3.35
V
4.85
5.05
5.25
V
3.93
4.1
4.27
V
3.5
7.5
11.5
mV
852.5 952.5 1052.5 mV
100
200
300
mV
Battery Switch
Characteristic
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Off threshold}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{On threshold}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _Hysteresis
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Switch ron
Test Conditions
DA0 to 6 = 1, RBAT = 1
DA0 to 6 = 27 BIN, RBAT = 1
DA0 to 6 = 0, RBAT = 0
Min.
Typ.
Max.
Unit
2.9
3.0
3.1
V
3.15
3.25
3.35
V
220
250
280
mV
35
50
W
Max batlow
:
Min batlow
:
Max bathigh
:
Min bathigh
:
Adjust step
:
(MAX - MIN) :
MINBL - SWOFF :
OFF threshold :
ON threshold
:
Hysteresis
:
Switch
:
MAXBL (battery voltage when all DAC bits are high, low range)
MINBL (battery voltage when DAC bits are 0011011, low range)
MAXBH (battery voltage when all DAC bits are high, high range)
MINBH (battery voltage when all DAC bits are low, high range)
Adjust step
MAXBH - MINBH
MINBL - SWOFF
SWOFF (off threshold of the battery switch)
SWON (on threshold of the battery switch)
SWON - SWOFF
Switch Ron (resistance of the switch transistor, when switch is “ON”)
TELEFUNKEN Semiconductors
Rev. A1, 29-Jul-96
Preliminary Information
17 (20)