BQ2063_15 Datasheet, PDF (2/60 Pages) Texas Instruments – SBS v1.1-COMPLIANT Li-ION GAS-GAUGE IC

bq2063
Not Recommended For New Designs
SBS v1.1ĆCOMPLIANT LiĆION GASĆGAUGE IC
WITH PROTECTOR INTERFACE
SLUS468E− MAY 2001 − REVISED APRIL 2002
Terminal Functions
TERMINAL
NAME
I/O
No.
DESCRIPTION
CTL2−CTL4 9–11 O 3-state outputs to interface the S-8243 protection IC
DISP
17
I Display control for the LED drivers LED1−LED5
ESCL
2
O Serial memory clock for data transfer between the bq2063 and the external nonvolatile configuration memory
ESDA
3
I/O Bidirectional pin that transfers address and data to and from the bq2063 and the external nonvolatile
configuration memory
GND
24–25
Must be tied externally to VSS
HDQ16
1
I/O Serial communication open-drain bidirectional communications port
LED1−LED5 12–16 O LED display segments that each may drive an external LED
RBI
4
I Register backup that provides backup potential to the bq2063 registers during periods of low operating
voltage. RBI accepts a storage capacitor or a battery input
REG
5
O Regular output to control an n-JFET for Vcc regulation to the bq2063 from the battery potential
SAFETY
26
O Open-drain output for an additional level of safety protection (e.g., fuse blow)
SMBC
28
I/O SMBus clock open-drain bidirectional pin used to clock the data transfer to and from the bq2063
SMBD
27
I/O SMBus data open-drain bidirectional pin used to transfer address and data to and from the bq2063
SRC
20
I Current-sense voltage to monitor instantaneous current
SR1−SR2
22–21 I Connections for a small-value sense resistor to monitor the battery charge- and discharge-current flow
THON
18
O Control for external FETs to connect the thermistor bias resistor during a temperature measurement
TS
19
I Thermistor voltage input connection to monitor temperature
VCC
7
I Supply voltage
VCELL
23
I Single-cell voltage input that monitors the series element cell voltages from the S-8243
VOUT
VSS
6
O VCC output that supplies power to the external EEPROM configuration memory
8
Ground
absolute maximum ratings over operating free-air temperature (unless otherwise noted)^†
Supply voltage (V_CC with respect to V_SS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
Input voltage, V_(IN), all other pins (all with respect to V_SS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20°C to 70°C
Storage temperature range, T_STG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20°C to 70°C
Junction temperature range, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 125°C
Lead temperature (soldering, 10 s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
† _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and}
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
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