bq24170
bq24172
www.ti.com
SLUSAD2A –NOVEMBER 2010–REVISED NOVEMBER 2010
USB
System
4.7µ
PVCC
ACN
ACP
CMSRC
BATDRV
ACDRV
VREF
3.3?H
RSR: 20m VBAT
1µ
VREF
SW
VREF
Selectable
bq24172
R4
100k
0.1?
current limit
0.047?
0.1?
ISET
BTST
R5B
12.1k
10?10?
R11
5
R5A
12.1k
ACSET
REGN
ILIM_500mA
1?
AVCC
R6
400k
C1
1µ
PGND
SRP
SRN
FB
OVPSET
R7
100k
VREF
TTC
TS
R8
5.23k
R2
100k
R10
1.5k
R9
30.1k
RT
103AT
R1
100k
THERMAL
PAD
STAT
VREF
D3
Figure 4. Typical Application Schematic with Single Cell Unremovable Battery (USB with input OVP 8V,
selectable charge current limit of 900mA or 500mA, 0 – 45°C TS, system connected after sense resistor)
ORDERING INFORMATION(1)
PART NUMBER
PART MARKING
PACKAGE
ORDERING NUMBER
bq24170RGYR
bq24170RGYT
QUANTITY
3000
bq24170
bq24170
24-Pin 3.5mm×5.5mm QFN
250
bq24172RGYR
bq24172RGYT
3000
bq24172
bq24172
24-Pin 3.5mm×5.5mm QFN
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 © 2010, Texas Instruments Incorporated
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