BQ33100_15 Datasheet, PDF (3/67 Pages) Texas Instruments – Super Capacitor Manager

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bq33100
SLUS987B – JANUARY 2011 – REVISED DECEMBER 2015
5 Description (Continued)
Using its integrated high-performance analog peripherals, the bq33100 measures and maintains an accurate
record of available capacitance, state-of-health, voltage, current, temperature, and other critical parameters in
Super Capacitors, and reports the information to the system host controller over a 2-wire SMBus 1.1 compatible
interface.
The bq33100 provides firmware controlled protection on overvoltage, overtemperature, and overcharge along
with hardware controlled protection for overcurrent in discharge and short circuit protection during charge and
discharge.
6 Pin Configuration and Functions
PW Package
24-Pin TSSOP
Top View
VCCPACK ¹
NC ²
VC1 3
VC2 ⁴
VC3 ⁵
VC4 ⁶
SRP ⁷
SRN ⁸
TS ⁹
VC5 ¹⁰
CHGLVL0 11
CHGLVL1 12
24 VCC
23 _CHG
22 _NC
21 CHGOR
20 ^{REG 27}
19 ^GND
18 ^RBI
17 ^LLEN
16 ^SCL
15 FAULT
14 SDA
13 VC5BAL
PIN
NAME
NO.
CHG
23
CHGLVL0 11
CHGLVL1 12
CHGOR
21
FAULT
15
GND
19
LLEN
17
NC
2
NC
22
RBI
18
REG27
20
SCL
16
SDA
14
SRN
8
SRP
7
TS
9
VC1
3
VC2
4
Pin Functions
TYPE ⁽¹⁾
DESCRIPTION
O
O
O
I
O
P
O
O
-
P
P
I/OD
I/OD
IA
IA
IA
IA
IA
P-Channel FET drive for controlling charge
Charge Control Output 0
Charge Control Output 1
CHG Over Ride input. If not used connect to VSS
Active high output to indicate fault condition.
Ground
Learn Load Enable Output
Not used and must be connected to VCC
No connect, leave pin floating
RAM backup pin to provide backup potential to the internal DATA RAM if power is momentarily lost by using
a capacitor attached between RBI and GND
Internal power supply 2.7-V bias output
Serial clock input: Clocks data on SDA
Serial Data: Transmits and Receives data
Analog input pin connected to the internal ADC peripheral for measuring a small voltage between SRP and
SRN where SRN is the bottom of the sense resistor.
Analog input pin connected to the internal ADC peripheral for measuring a small voltage between SRP and
SRN where SRP is the top of the sense resistor.
Thermistor input
Sense voltage input terminal and external capacitor voltage balancing drive output for the 5th series
capacitor, and stack measurement input. See Series Capacitor Configuration for systems with less than 5
series
Sense voltage input terminal and external capacitor voltage balancing drive output for the 4th series
capacitor. See Series Capacitor Configuration for systems with less than 5 series
(1) I = Input, O = Output, P = Power, IA = Analog Input, OD = Open Drain
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