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BQ24038RHLR Datasheet(PDF) 11 Page - Texas Instruments

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Part # BQ24038RHLR
Description  SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINY)
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24038RHLR Datasheet(HTML) 11 Page - Texas Instruments

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FUNCTIONAL DESCRIPTIONS
CHARGE CONTROL
Pre-Conditioning
Phase
Current Regulation Phase
Voltage Regulation and Charge Termination Phase
Regulation
Voltage
Regulation
Current
Minimum
Charge
Voltage
Pre−
Conditioning
and Term
Detect
Charge
Current
Charge
Complete
UDG−04087
Charge
Voltage
4
20
14
7
5
12
13
3
AC
USB
LDO
STAT2
TMR
ISET2
10
11
TS
PACK+
PACK −
System
VDC
GND
VBUS
GND
D+
D −
USBPort
AC Adapter
+
2
STAT1
18
19
8
PSEL
9
CE
1
OUT 15
OUT 16
OUT 17
BAT
6
BAT
DPPM
ISET1
VSS
TEMP
Battery P ack
10 µF
RTMR
1 µF
RSET
USBPG
ACPG
RDPPM
Controland
Status Signals
bq24030/31/32A/35
10 µF
10 µF
10 µF
bq24030, bq24031, bq24032A
bq24035, bq24038
SLUS618F – AUGUST 2004 – REVISED NOVEMBER 2006
The bqTINY III-series supports a precision Li-ion or Li-polymer charging system suitable for single-cell portable
devices. See a typical charge profile, application circuit, and an operational flow chart in Figure 1 through
Figure 4, respectively.
Figure 1. Charge Profile
Figure 2. Typical Application Circuit
11
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