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FEATURES
DESCRIPTION
APPLICATIONS
TYPICAL APPLICATION
AC
USB
BAT
OUT
bq2403x
PACK+
PACK-
System
VDC
GND
VBUS
GND
D+
D -
USB Port
AC Adapter
+
Q1
Q2
Q3
UDG-04082
30 m
bq24030, bq24032, bq24035
SLUS618 AUGUST 2004
SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINYTM-III)
Small 3.5 mm
4.5 mm QFN package
The bqTINY-III series are highly integrated and flex-
ible Li-Ion linear charge and system power path
Designed for single-cell Li-Ion or Li-Pol based
management devices targeted at space limited port-
portable applications
able applications. The bqTINY-III series offer inte-
Integrated dynamic power-path management
grated USB-port and DC supply (AC adapter) and
(DPPM) feature allowing the AC adapter or the
power-path
management
with
autonomous
USB port to simultaneously power the system
power-source selection, power FET and current
and charge the battery
sensor, high accuracy current and voltage regulation,
charge status, and charge termination, in a single
Power supplement mode allows battery to
monolithic device.
supplement the USB or AC input current
Autonomous power source selection (AC
The bqTINY-III powers the system while indepen-
Adapter or USB)
dently charging the battery. This features reduces the
charge and discharge cycles on the battery, allows
Integrated USB charge control with selectable
for proper charge termination and allows the system
100-mA and 500-mA charge rates
to run with an absent or defective battery pack. This
Dynamic total current management for USB
feature also allows for system to instantaneously turn
on from an external power source in the case of a
Supports up to 2-A total current
deeply discharged battery pack.
3.3 V Integrated LDO output
The bqTINY-III automatically selects the USB-Port or
Thermal regulation for charge control
the AC-adapter as the power source for the system.
Charge status outputs for LED or system
In the USB configuration, the host can select from the
interface indicates charge and fault
2 preset charge rates of 100 mA and 500 mA. The
conditions
bqTINY-III dynamically adjusts the USB charge rate
Reverse current, short-circuit and thermal
based on system load to stay within the 100 mA or
protection
500 mA charge rates. In the ac-adapter configuration
an external resistor sets the magnitude of the charge
Power Good (AC adapter and USB port
current. The AC input can also be programmed using
present) Status outputs
the PSEL pin to perform like a USB input.
Smartphones and PDA
MP3 players
Digital cameras Handheld devices
Internet appliances
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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ABSOLUTE MAXIMUM RATINGS
(1)
bq24030, bq24032, bq24035
SLUS618 AUGUST 2004
These devices have limited built-in ESD protection. The leads should be shorted together or the device
placed in conductive foam during storage or handling to prevent electrostatic damage to the MOSFET
gates.
ORDERING INFORMATION
OUTPUT
OUT PIN FOR AC
PART
PACKAGE
T
A
STATUS
VOLTAGE (V)
INPUT CONDITIONS
NUMBER
(1) (2)
MARKING
4.2
Regulated to 6 V
bq24030RHLR
Preview
ANB
-40
C to 125
C
4.2
Regulated to 4.4 V
bq24032RHLR
Released
AMZ
4.2
Cut off at 6 V
bq24035RHLR
Preview
ANA
(1)
The RHL package isavailable taped and reeled only in quantities of 3,000 devices perreel.
(2)
This product is RoHScompatible, including a lead concentration that does not exceed 0.1% of totalproduct weight, and is suitable for use
in specified lead-free solderingprocesses. In addition, this product uses package materials that do not containhalogens, including
bromine (Br) or antimony (Sb) above 0.1% of total productweight.
over operating free-air temperature range (unless otherwise noted)
bq24030
bq24032
UNIT
bq24035
Input voltage
AC (DC voltage wrt VSS)
-0.3 to 18
BAT, CE, DPPM, ACPG, PSEL, OUT, ISET1, ISET2,
-0.3 to 7
V
STAT1, STAT2, TS, USBPG (all DC voltages wrt VSS)
Input voltage
LDO (DC voltage wrt VSS)
-0.3 to V
O(OUT)
+ 0.3
AC
2.75
A
Input current
USB
600
mA
OUT
4
Output current
A
BAT
(2)
-4 to 1.75
Output source current (in regulation at
LDO
30
3.3 V LDO)
mA
Output sink current
ACPG, STAT1, STAT2, USBPG,
1.5
Storage temperature range, T
stg
-65 to 150
Junction temperature range, T
J
-40 to 150
C
Lead temperature (solderig, 10 seconds)
300
(1)
Stresses beyond thoselisted under "absolute maximum ratings" may cause permanent damage to thedevice. These are stress ratings
only, and functional operation of the deviceat these or any other conditions beyond those indicated under "recommendedoperating
conditions" is not implied. Exposure to absolute-maximum-ratedconditions for extended periods may affect device reliability. All
voltagevalues are with respect to the network ground terminal unless otherwisenoted.
(2)
Negative current isdefined as current flowing into the BAT pin.
2
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RECOMMENDED OPERATING CONDITIONS
DISSIPATION RATINGS
ELECTRICAL CHARACTERISTICS
bq24030, bq24032, bq24035
SLUS618 AUGUST 2004
MIN
MAX
UNIT
V
CC
Supply voltage (from AC input)
(1) (2)
4.35
16.00
V
V
CC
Supply voltage (from USB input)
(1)
4.35
6.5
I
AC
Input current, AC
2
A
I
USB
Input current, USB
0.5
T
J
Operating junction temperature range
-40
125
C
(1)
V
CC
is defined as the greater of AC or USBinput.
(2)
Verify that powerdissipation and junction temperatures are within limits at maximum V
CC
.
T
A
40
C
DERATING FACTOR
PACKAGE
JA
POWER RATING
T
A
> 40
C
20-pin RHL
(1)
1.81 W
21 mW/
C
46.87
C/W
(1)
This data is based onusing the JEDEC High-K board and the exposed die pad is connected to a Cu padon the board. This is connected
to the ground plane by a 2
3 viamatrix.
over junction temperature range (0
C
T
J
125
C) and the recommended supply voltage range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
INPUT CURRENT
I
CC(SPLY)
Active supply current, VCC
V
VCC
> V
VCC(min)
1
2
mA
V
(AC)
< V
(UVLO)
, V
(USB)
< V
(UVLO)
,
Sleep current (current into BAT
I
CC(SLP)
2.6 V
V
I(BAT)
V
O(BAT-REG)
,
2
5
pin)
Excludes load on OUT pin
V
I(AC)
6V, Total current into AC pin with
I
CC(AS-STDBY)
AC standby current
chip disabled, Excludes all loads,
(1)
200
CE=LOW, after t
(CE-HOLDOFF)
delay
Total current into USB pin with chip dis-
I
CC(USB-
abled,
USB standby current
200
A
STDBY)
Excludes all loads,
(1)
CE=LOW,
after t
(CE-HOLDOFF)
delay
Total current into BAT pin with AC and/or
USB present and chip disabled,
I
CC(BAT-STDBY)
BAT standby current
45
60
Excludes all loads,
CE=LOW, after t
(CE-HOLDOFF)
delay
(1)
Charge DONE, AC or USB supplying the
I
IB(BAT)
Charge done current, BAT
1
5
load
LDO OUTPUT
Active only if AC or USB is present,
V
O(LDO)
Output regulation voltage
3.3
V
V
I(OUT)
V
O(LDO)
+ (I
O(LDO)
R
DS(on)
)
Regulation accuracy
(2)
-5%
5%
I
O(LDO)
Output current
20
mA
R
DS(on)
On resistance
OUT to LDO
50
C
(OUT)
Output capacitance
(3)
1
F
OUT TERMINAL AND DPPM MODE
bq24030
V
I(AC)
6 V+V
DO
6.0
6.3
Output regulation volt-
V
O(OUT-REG)
age
bq24032
V
I(AC)
4.4 V+V
DO
4.4
4.5
V
V
(DPPM-SET)
DPPM set point
(4)
2.6
3.7
I
(DPPM-SET)
DPPM current source
AC or USB present
95
100
105
A
(1)
This includes thequiescent current for the integrated LDO.
(2)
In standby mode (CElow) the accuracy is
10%.
(3)
LDO output capacitornot required but one with a value of 0.1-F is recommended.
(4)
V
(DPPM-SET)
is scaled up by the scale factor forcontrolling the output voltage V
(DPPM-REG)
.
3
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bq24030, bq24032, bq24035
SLUS618 AUGUST 2004
ELECTRICAL CHARACTERISTICS (continued)
over junction temperature range (0
C
T
J
125
C) and the recommended supply voltage range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
SF
DPPM scale factor
V
(DPPM-REG)
= V
(DPPM-SET)
SF
1.139
1.150
1.162
V
DPPM disable set point
1.8
2.0
2.2
V
I(AC)
V
CC(min)
, PSEL=High,
V
(ACDO)
AC to OUT dropout voltage
(5)
300
475
I
I(AC)
= 1 A, (I
O(OUT)
+I
O(BAT)
)
V
I(USB)
V
CC(min)
, PSEL=Low, ISET2 =
High
140
180
mV
I
I(USB)
= 0.4 A, (I
O(OUT)
+I
O(BAT)
)
V
(usbDO)
USB to OUT dropout voltage
V
I(USB)
V
CC(min)
, PSEL=Low, ISET2 = Low
28
36
I
I(USB)
= 0.08 A, (I
O(OUT)
+I
O(BAT)
)
Enter battery supplement mode
V
I(OUT)
(battery supplements OUT current
V
I(BAT)
> 2 V
V
I(BAT)
- 60
in the presence of input source
mV
V
V
I(OUT)
Exit battery supplement mode
V
I(BAT)
> 2 V
V
I(BAT)
- 20
mV
Series resistor between BAT to OUT for
BAT to OUT short circuit recovery
short circuit recovery to
10
mA
V
I(OUT)
V
I(BAT)
-200mV
AC to OUT short circuit limit
V
I(OUT)
1 V
500
USB to OUT short circuit limit
V
I(OUT)
1 V
500
BATTERY CHARGE VOLTAGE REGULATION, V
O (BAT-REG)
+ V
(DO-MAX)
< V
CC
, I
TERM
< I
BAT(OUT)
1 A
V
O(BAT-REG)
Battery charge voltage
4.2
V
T
A
= 25
C
--0.5%
0.5%
Battery charge voltage regulation
accuracy
-1%
1%
BAT to OUT dropout voltage
V
(DO)
V
I (BAT)
3 V, I
i(BAT)
= 1.0 A, V
CC
< V
i(BAT)
30
100
(discharging)
3.0 V
V
O(BAT)
< V
O(BAT-REG)
, I
I(BAT)
= 1
mV
A,
V
(DO)
USB dropout voltage
30
100
1 A current source on AC input,
V
I(DPPM)
< 2.2 V
CURRENT REGULATION
V
VCC
4.35 V, V
i (BAT)
> V
(LOWV)
,
AC battery charge current range
I
O(BAT)
V
I(OUT)
- V
I (BAT)
> V
(DO-MAX)
, PSEL = High
100
1000
1500
mA
(6) (7)
I
OUT(BAT)
= (K
(SET)
V
(SET)
/ R
SET
),
AC to OUT and USB to OUT
V
I(OUT)
< 1 V
500
short-circuit pull-up
Voltage on ISET1, V
VCC
4.35 V,
Battery charge current set volt-
V
(SET)
V
I(OUT)
- V
I(BAT)
> V
(DO-MAX)
, V
I(BAT)
>
2.475
2.500
2.525
V
age
(8)
V
(LOWV)
100 mA
I
O(BAT)
1 A
400
425
450
K
(SET)
Charge current set factor, BAT
10 mA
I
O(BAT)
100 mA
(9)
300
450
600
(5)
V
DO(max)
, dropout voltage is a function of the FET,R
DS(on)
, and drain current. the dropoutvoltage increases proportionally to the increase
in current.
(6)
When input currentremains below 2 A, the battery charging current may be raised until the thermalregulation limits the charge current.
(7)
When PSEL is pulledlow, and USBPG is high, the AC inputfunctions as a USB input.
(8)
For half-chargerate, V
(SET)
is 1.25 V
25mV.
(9)
Specification is formonitoring charge current via the ISET1 pin during voltage regulation mode, notfor a reduced fast charge level.
4
www.ti.com
bq24030, bq24032, bq24035
SLUS618 AUGUST 2004
ELECTRICAL CHARACTERISTICS (continued)
over junction temperature range (0
C
T
J
125
C) and the recommended supply voltage range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
V
VCC(min)
4.35 V, V
I(BAT)
> V
(LOWV)
,
V
I(USB)
- V
I(BAT)
> V
(DO-MAX)
, ISET2= Low,
80
100
PSEL = Low
(10)
USB input current range
mA
V
VCC(min)
4.35 V, V
I(BAT)
> V
(LOWV)
,
V
I(USB)
- V
I(BAT)
> V
(DO-MAX)
, ISET2= High,
400
500
PSEL = Low
(11)
PRECHARGE and SHORT-CIRCUIT CURRENT REGULATION
Precharge to fast-charge transition
V
(LOWV)
Voltage on BAT
2.9
3.0
3.1
V
threshold
V
VCC(min)
4.5 V, t
FALL
= 100 ns,
Deglitch time for fast-charge to
10 mV overdrive,
22.5
ms
precharge transition
(12)
V
I(BAT)
decreasing below threshold
1 V < V
I(BAT)
< V
(LOWV)
, t < t
(PRECHG)
,
I
O(PRECHG)
Precharge range
10
150
mA
I
O(PRECHG)
= (K
(SET)
V
(PRECHG)
)/ R
SET
V
(PRECHG)
Precharge set voltage
1 V < V
I(BAT)
< V
(LOWV)
, t < t
(PRECHG)
230
250
270
mV
Short circuit pull-up, BAT
V
I(BAT)
1 V
1
k
CHARGE TAPER DETECTION
V
I(BAT)
< V
(RCH)
,
I
(TAPER)
Charge taper detection range
10
150
mA
I
(TAPER)
= (K
(SET)
V
(TAPER)
)/ R
SET
Voltage on ISET1, V
REG(BAT)
= 4.2 V,
V
(TAPER)
Charge taper detection set voltage
235
250
265
mV
V
I(BAT)
> V
(RCH)
V
VCC(min)
4.5 V, t
FALL
= 100 ns,
10 mV overdrive,
Deglitch time for taper detection
22.5
ms
I
CHG
increasing above or decreasing below
threshold
TEMPERATURE SENSE COMPARATORS
V
HTF
High voltage threshold
2.465
2.500
2.535
V
V
LTF
Low voltage threshold
0.485
0.500
0.515
V
I
TS
Temperature sense current source
94
100
106
A
V
VCC(min)
4.5 V, R
(TMR)
= 50 k
,
Deglitch time for temperature fault
V
I(BAT)
increasing or decreasing above and
22.5
ms
detection
(12)
below; 100-ns fall time, 10-mv overdrive
BATTERY RECHARGE THRESHOLD
V
O(BAT-
V
O(BAT-
V
O(BAT-
V
RCH
Recharge threshold voltage
REG)
REG)
REG)
V
-0.075
-0.100
-0.125
V
VCC(min)
4.5 V, R
(TMR)
= 50 k
,
Deglitch time for recharge detec-
V
I(BAT)
increasing or decreasing below
22.5
ms
tion
(12)
threshold, 100-ns fall time, 10-mv over-
drive
STAT1, STAT2. ACPG AND USBPG OUTPUTS
Low-level output saturation volt-
V
OL
I
OL
= 5 mA
0.25
V
age
Input leakage current
1
5
A
ISET2, CE AND PSEL INPUTS
V
IL
Low-level input voltage
0
0.4
V
V
IH
High-level input voltage
1.4
(10) With the PSEL= low,the bqTINY-III defaults to USB charging. If USB input is grounded, then thebqTINY-III charges from the AC input at
the USB charge rate. In thisconfiguration the specification is 75 mA (min) and 95 mA (max).
(11) With the PSEL= low,the bqTINY-III defaults to USB charging. If USB input is grounded, then thebqTINY-III charges from the AC input at
the USB charge rate. In thisconfiguration the specification is 375 mA (min) and 475 mA (max).
(12) All deglitch periodsare a function of the timer setting.
5
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