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| BQ24171 Datasheet, PDF (5/35 Pages) Texas Instruments – JEITA Compliant Stand-Alone Switch-Mode Li-Ion and Li-Polymer Battery Charger with Integrated MOSFETs and Power Path Selector | |||
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www.ti.com
bq24171
SLUSAF2A â FEBRUARY 2011 â REVISED MAY 2011
USB
ACN
ACP
CMSRC
PVCC
BATDRV
ACDRV
1µ VREF
VREF
VREF
SW
Selectable
current limit
R4
100k
bq24171
ISET
R11
5
R5B
12.1k
R5A
12.1k
ILIM_500mA
ACSET
BTST
REGN
R6
400k
R7
100k
RT
103AT
VREF
R8
2.2k
R9
6.8k
C1 AVCC
1µ
OVPSET
PGND
SRP
TTC
SRN
R10
1.5k
VREF
D3
TS
FB
THERMAL
STAT PAD
System
4.7µ
3.3?H RSR: 20m VBAT
0.047?
D1 0.1?
Optional
1?
0.1?
10?10?
R2
100k
R1
100k
Figure 2. Typical Application Schematic with Single Cell Unremovable Battery (USB with input OVP 8V,
selectable charge current limit of 900mA or 500mA, system connected after sense resistor)
PART NUMBER
bq24171
ORDERING INFORMATION(1)
PART MARKING
PACKAGE
ORDERING NUMBER
bq24171
24-Pin 3.5mmÃ5.5mm QFN
bq24171RGYR
bq24171RGYT
QUANTITY
3000
250
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
Copyright © 2011, Texas Instruments Incorporated
Product Folder Link(s): bq24171
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