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BQ7790508PW Datasheet(PDF) 5 Page - Texas Instruments

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Part # BQ7790508PW
Description  3-5S Ultra Low-Power Voltage, Current, Temperature, and Open Wire Stackable Lithium-ion Battery Protector
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ7790508PW Datasheet(HTML) 5 Page - Texas Instruments

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1
VDD
20
DVSS
2
AVDD
19
CTRD
3
VC5
18
CTRC
4
VC4
17
CCFG
5
VC3
16
VTB
6
VC2
15
TS
7
VC1
14
LD
8
AVSS
13
CHG
9
SRP
12
CHGU
10
SRN
11
DSG
5
bq77904, bq77905
www.ti.com
SLUSCM3G – JUNE 2016 – REVISED SEPTEMBER 2017
Product Folder Links: bq77904 bq77905
Submit Documentation Feedback
Copyright © 2016–2017, Texas Instruments Incorporated
(1)
I = Input, O = Output, P = Power
6 Pin Configuration and Functions
PW Package
20-Pin TSSOP
Top View
Pin Functions
PIN
I/O(1)
DESCRIPTION
NAME
NO.
AVDD
2
O
Analog supply (only connect to a capacitor)
AVSS
8
P
Analog ground
CCFG
17
I
Cell in series-configuration input
CHG
13
O
CHG FET driver, use on a single device or on the bottom device of a stack
configuration
CHGU
12
O
CHG FET signal, use for upper device of a stack configuration to feed the CHG signal
to the CTRC pin of the lower device
CTRC
18
I
CHG and DSG override inputs
CTRD
19
I
DSG
11
O
DSG FET driver
DVSS
20
P
Digital ground
LD
14
I
PACK– load removal detection
SRN
10
I
Current sense input connecting to the pack– side of sense resistor
SRP
9
I
Current sense input connecting to the battery side of sense resistor
TS
15
I
Thermistor measurement input. Connect a 10kΩ resistor to AVSS pin if the function is
not used
VC1
7
I
Cell voltage sense inputs
VC2
6
I
VC3
5
I
VC4
4
I
VC5
3
I
Cell voltage sense inputs (pin 3 must be connected to pin 4 on bq77904)
VDD
1
P
Supply voltage
VTB
16
O
Thermistor bias output


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