BQ2084DBTR-V150 Datasheet, PDF (6/69 Pages) Texas Instruments – SBS v1.1-COMPLIANT GAS GAUGE WITH LED DELAY

bq2084-V150
SLUS758 – JUNE 2007
SYSTEM DIAGRAM
Pack +
Pres
SMBus
Fuse
bq2084−V150
Pre-Charge Control
Fail-Safe
Protection
PF Input
Power Management
LDO, TOUT and Power Mode Control
3.3 V
Temperature Measurement
<1% Error
T_INT
T1
1 k Bytes of
User Flash
32 kHz Clock
Generator
Cell Balancing Algorithm and Control
SBS v1.1 Data
System Interface
bq29312 RAM/Comms V alidation
1 ^st Level OC
Protection
1 ^st Level OV and
UV Protection
Pack Under
Voltage Power
Mode Control
Cell and Pack
Voltage
Measurement
Capacity Prediction <1% Error
32 kHz
I²C
www.ti.com
Discharge / Charge /
Pre-Charge FET s
bq29312A
PCH FET Drive
Pre-Charge
FET Drive
Cell Balancing
Drive
LDO, Therm Output Drive and UVLO
System
Watchdog
Delay Counters
System Interface
RAM Registers
Power Mode Control
2-Tier Overcurrent Protection
Voltage Level T ranslator
Pack −
Sense Resistor
(5 to 30 m Ω)
PIN ASSIGNMENTS
TSSOP (DBT)
(TOP VIEW)
VIN 1
TS 2
VSSA 3
PU 4
PRES 5
SCLK 6
NC 7
VDDD 8
RBI ⁹
SDATA 10
VSSD ¹¹
SAFE ¹²
NC ¹³
NC ¹⁴
SMBC ¹⁵
SMBD ¹⁶
DISP ¹⁷
PFIN ¹⁸
VSSD ¹⁹
38 ^VSSD
37 ^NC
36 ^NC
35 ^CLKOUT
34 ^XCK1/VSSA
33 ^XCK2/ROSC
32 ^FILT
31 ^VDDA
30 ^VSSA
29 ^VSSA
28 ^SR1
27 ^SR2
26 MRST
25 EVENT
24 LED1
23 LED2
22 LED3
21 LED4
20 LED5
6
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