EUP8057-84MIR1 [EUTECH]
Advanced 1A Linear Charge Management Controllers; 先进的1A线性充电管理控制器
| 型号： | EUP8057-84MIR1 |
| 厂家： | 
EUTECH MICROELECTRONICS INC |
| 描述： | Advanced 1A Linear Charge Management Controllers |
| 文件： | 总16页 (文件大小：563K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EUP8057
Advanced 1A Linear Charge
Management Controllers
FEATURES
DESCRIPTION
z
z
4.5V-15V Wide Input Voltage Range
Ideal for Single Cell (4.1V or 4.2V) and Dual-Cell
(8.2V or 8.4V) Li-Ion or Li-Pol Batteries
Preset Charge Voltage with ±1% Accuracy
Programmable Charge Current up to 1A
Constant-Current/Constant Voltage Operation
Preconditioning of Low Voltage Cells
The EUP8057 is a highly advanced Lithium-Ion (Li-Ion)
and Lithium–Polymer (Li-Pol) linear charge management
controller for use in cost sensitive and portable
applications. It combines high accuracy constant-current
and constant-voltage regulation, cell preconditioning,
temperature monitoring, automatic charge termination,
charge-status indication, in a space-saving MSOP-8,
TSSOP-8 package.
The EUP8057 applies a constant current up to 1A to the
battery and the charge current can be programmed
externally with a sense-resistor.
The EUP8057 automatically terminates the charge cycle
when the charge current drops to the charge termination
threshold (ITERM) after the charge-regulation voltage is
reached.
z
z
z
z
z
Optional Cell-Temperature Monitoring Before and
During Charge
z
Charge Status Output for Single of Dual Led or
Host Processor Interface
Automatic Battery Recharge
z
z
z
Charge Termination by Minimum Current
Automatic Low-Power Sleep Mode When Input
When the input supply is removed, the EUP8057
Power is Removed
automatically enters a low-power sleep mode.
z
z
Available in TSSOP-8, MSOP-8 and SOP-8
Package
RoHS Compliant and 100% Lead (Pb)-Free
A battery charge state output pin is provided to indicate
battery charge status through a display LED. The battery
charge status output is a serial interface which may also be
read by a system microcontroller.
APPLICATIONS
z
Cellular Phones / PDAs/ MP3 Players/DSC
Handheld Instruments
z
DS8057 Ver 1.8 Nov. 2006
1
EUP8057
Typical Application Circuit
DS8057 Ver 1.8 Nov. 2006
2
EUP8057
Pin Configurations
Part Number
Pin Configurations
EUP8057
TSSOP-8
EUP8057
MSOP-8
EUP8057
SOP-8
Pin Description
PIN
SNS
BAT
VCC
TS
STAT
VSS
CC
TSSOP-8 MSOP-8
SOP-8
I/O
DESCRIPTION
1
2
3
4
5
6
7
7
8
1
2
3
4
5
7
8
1
2
3
4
5
I
I
I
I
O
Current Sense Input
Battery Voltage Input
Supply Voltage Input
Temperature Sense Input
Charge Status Output
Ground
O
I
Charge Control Output
External Feedback input or Charge Enable Function. Input
from controller or finely adjust the battery regulated voltage
with external voltage divider
FB/CE
8
6
6
DS8057 Ver 1.8 Nov. 2006
3
EUP8057
Ordering Information
Order Number
Package Type
Marking
Operating Temperature range
xxxx
8057
EUP8057-41QIR1
TSSOP-8
-20 °C to 70°C
xxxx
EUP8057-42QIR1
EUP8057-82QIR1
EUP8057-83QIR1
EUP8057-84QIR1
EUP8057-41MIR1
EUP8057-42MIR1
EUP8057-82MIR1
EUP8057-83MIR1
EUP8057-84MIR1
EUP8057-42DIR1
TSSOP-8
TSSOP-8
TSSOP-8
TSSOP-8
MSOP-8
MSOP-8
MSOP-8
MSOP-8
MSOP-8
SOP-8
-20 °C to 70°C
-20 °C to 70°C
-20 °C to 70°C
-20 °C to 70°C
-20 °C to 70°C
-20 °C to 70°C
-20 °C to 70°C
-20 °C to 70°C
-20 °C to 70°C
-20 °C to 70°C
8057C
xxxx
8057T
xxxx
8057Q
xxxx
8057W
xxxx
8057
xxxx
8057C
xxxx
8057T
xxxx
8057Q
xxxx
8057W
xxxx
8057C
EUP8057- □ □ □ □ □ □
Lead Free Code
1: Lead Free 0: Lead
Packing
R: Tape & Reel
Operating temperature range
I: Industry Standard
Package Type
Q: TSSOP
M: MSOP
D: SOP
Output Voltage
41: 4.1V
42: 4.2V
82: 8.2V
83: 8.32V
84: 8.4V
DS8057 Ver 1.8 Nov. 2006
4
EUP8057
Absolute Maximum Ratings
Supply voltage, (Vcc with respect to GND) -------------------------------------------------- -- -0.3 to +18V
Input voltage, SNS, BAT, TS, CE (all with respect to GND)-------------------------- -0.3V to VCC +0.3V
Sink current (STAT pin) not to exceed PD -------------------------------------------------------------- 20mA
Source current (STAT pin) not to exceed PD ---------------------------------------------------------- 10mA
Output current (CC pin) not to exceed PD -------------------------------------------------------------- 40mA
Maximum Junction Temperature, TJ ------------------------------------------------------------------- 150°C
Storage temperature range, Tstg ------------------------------------------------------------- -65°C to 150°C
Lead temperature (soldering, 10s) ------------------------------------------------------------------
300°C
Package Thermal Resistance, θJA- MSOP8 ---------------------------------------------------------- 80°C/W
θJA- TSSOP8 --------------------------------------------------------- 70°C/W
θJA- SOP8 ------------------------------------------------------------- 67.9°C/W
ESD Rating --------------------------------------------------------------------------------------------
Note 1
Note 1: IC devices are inherently ESD sensitive; handling precautions required.
Recommended Operating Conditions
Min. Max. Unit
Supply voltage, VCC
Operating free-air temperature range, TA
4.5
-20
15
70
V
°C
Electrical Characteristics over Recommended Operating Free-Air Temperature Range
EUP8057
Symbol
Parameter
Conditions
Unit
Min. Typ. Max.
VCC=9V >VCC(min), Excluding
external loads
I(VCC)
VCC current
0.7
1.2
mA
For EUP8057-4.1, EUP8057-4.2
V
V
(BAT) ≥V(min),
2
4
(BAT)-VCC ≥0.8V
I(VCCS)
VCC Sleep current
µA
For EUP8057-8.2, EUP8057-8.3,
EUP8057-8.4 ,V(BAT) ≥V(min)
,
8
V(BAT)-VCC ≥0.8V
IIB(BAT) Input bias current on BAT pin
V(BAT)=V(REG)
V(SNS)=5V
V(TS)=5V
1
1
1
1
µA
µA
µA
µA
IIB(SNS)
IIB(TS)
IIB(CE)
Input bias current on SNS pin
Input bias current on TS pin
Input bias current on CE pin
V(PI)=5V
Battery Voltage Regulation
EUP8057-4.1
EUP8057-4.2
EUP8057-8.2
EUP8057-8.3
EUP8057-8.4
4.059
4.158
8.119
8.237
8.317
4.10
4.20
8.20
8.32
8.40
4.141
4.242
8.282
8.403
8.484
VO(REG)
Output voltage
V
DS8057 Ver 1.8 Nov. 2006
5
EUP8057
Electrical Characteristics Over Recommended Operating Free-Air Temperature Range
EUP8057
Typ. Max.
Symbol
Parameter
Conditions
Unit
Min.
V(SNS) Current regulation threshold Voltage at pin SNS, relative to VCC
180
200
220
mV
Charge Termination Detection
Voltage at pin SNS, relative to VCC
0°C ≤TA ≤ 50°C
Charge termination current
detect threshold
I(TERM)
5
15
25
mV
Temperature Comparator
V(TS1) Lower temperature threshold
V(TS2) Upper temperature threshold
Precharge Comparator
29
58
30
60
31
62
TS pin voltage
%VCC
EUP8057-4.1
EUP8057-4.2
EUP8057-8.2
EUP8057-8.3
EUP8057-8.4
2.94
3.14
5.98
6.13
6.18
3
3.06
3.26
6.22
6.37
6.43
3.2
6.1
6.25
6.3
V(min)
Precharge threshold
V
Precharge Current Regulation
Voltage at pin SNS, relative to VCC
18
mV
mV
0°C ≤TA ≤50°C
I(PRECHG) Precharge current regulation
Voltage at pin SNS, relative to VCC
0°C ≤TA ≤50°C , VCC=9V
5
33
VRCH comparator(Battery Recharge Threshold)
VO(REG)- VO(REG)
-
VO(REG)
-
-
EUP8057-4.1 and EUP8057-4.2
102mV 100mV 98mV
V(RCH)
Recharge threshold
V
V
VO(REG)- VO(REG)
- VO(REG)
EUP8057-8.2 ,EUP8057-8.3 and EUP8057-8.4
204mV 200mV 196mV
STAT Pin
VOL(STAT)
VOH(STAT)
CC Pin
VOL(CC)
Output(low)voltage
Output(high)voltage
IOL=10mA
IOH=5mA
0.7
VCC-0.8
Output low voltage
Sink current
IO(CC)=5mA(sink)
2
V
IO(CC)
Not to exceed power rating specification(PD)
5
40
mA
DS8057 Ver 1.8 Nov. 2006
6
EUP8057
Typical Operating Characteristics
DS8057 Ver 1.8 Nov. 2006
7
EUP8057
Application Information
FunctionalDescription
The EUP8057 is an advanced 1A linear charge controller for single or two-cell Li-Ion of Li-Pol applications. Refer to
Blocking Diagram (Figure3) and Operation Flow Chart (Figure4) in this section.
DS8057 Ver 1.8 Nov. 2006
8
EUP8057
Power On Reset
VCC
Applied
NO
Sleep Mode
YES
Temperature
Test
Temperature
Fault
NO
TS>VTS1
TS<VTS2
YES
Low Current
Conditioning
Charge
Preconditioning
Test
VMIN > VBAT
YES
(Trickle Charge)
NO
Current
Phase Test
Constant
Current
Charging
Mode
YES
V
REG>VBAT
NO
Constant
Voltage
Charging
Mode
Voltage Phase
Test
YES
I
BAT>ITERM
NO
Charge
Termination
YES
NO
Recharge Test
V
RCH>VBAT
Figure4. Operation Flow Chart
DS8057 Ver 1.8 Nov. 2006
9
EUP8057
Qualification and Precharge
When power is applied, the EUP8057 starts
a
charge-cycle if a battery is already present or when a
battery is inserted. Charge qualification is based on
battery temperature and voltage.
The EUP8057 suspends charge if the battery temperature
is outside the V(TS1) to V(TS2) range and suspends charge
until the battery temperature is within the allowed range.
The EUP8057 also checks the battery voltage. If the
battery voltage is below the precharge threshold V(min),
the EUP8057 uses precharge to condition the battery. The
conditioning charge rate I(PRECHG) is set at approximately
10% of the regulation current. The conditioning current
also minimizes heat dissipation in the external
pass-element during the initial stage of charge. See
Figure5 for a typical charge-profile.
VoltageRegulation Phase
The voltage regulation feedback is through the BAT pin.
This input is tied directly to the positive side of the
battery pack. The EUP8057 monitors the battery-pack
voltage between the BAT and VSS pins. The EUP8057 is
offered in five fixed-voltage versions:4.1V, 4.2V ,8.2V,
8.3V and 8.4V.
FB/CE Pin Function
This pin has two functions, one is to enable/disable the
charge function, and the other is to finely adjust battery
regulation voltage. Connect this pin to VDD to enable
EUP8057, and connect to ground to disable it (Figure7).
If this pin is connected to a voltage divider as shown in
Figure8, it can be a 4.3V reference voltage to adjust the
output regulation voltage as desired.
Current Regulation Phase
The EUP8057 regulates current while the battery-pack
voltage is less than the regulation voltage, VO(REG). The
EUP8057 monitors charge current at the SNS input by
the voltage drop across a sense-resistor, RSNS, in series
with the battery pack. In current sensing configuration
(Figure6), RSNS is between the VCC and SNS pins,
charge-current feedback, applied through pin SNS,
maintains a voltage of V(SNS) across the current sense
resistor. The following formula calculates the value of the
sense resistor:
V
(SNS)
R
=
---------------------------- (1)
SNS
I
O(REG)
Where IO(REG) is the desired charging current.
DS8057 Ver 1.8 Nov. 2006
10
EUP8057
---------------------- (5)
5 × R
× R
TH
TH
TC
TC
R
R
=
=
T1
T2
3× (R
- R
)
5 × R
× R
TH
TC
------------- (6)
)]
[(2 × (R
) - (7 × R
TH
TC
Where R(TC) is the cold temperature resistance and R(TH)
is the hot temperature resistance of thermistor, as
specified by the thermistor manufacturer.
R
T1 or RT2 can be omitted if only one temperature (hot or
cold) setting is required. Applying a voltage between the
V(TS1) and V(TS2) thresholds to pin TS disables the
temperature-sensing feature.
R
R
FB1
FB2
V
= 4.3× (1+
)V
O(REG)
Charge Termination and Recharge
The EUP8057 monitors the charging current during the
voltage-regulation phase. The EUP8057 declares a done
condition and terminates charge when the current drops
to the charge termination threshold, I(TERM). A new charge
cycle begins when the battery voltage falls below the
V(RCH) threshold.
Battery Temperature Monitoring
The EUP8057 continuously monitors temperature by
measuring the voltage between the TS and VSS pins. A
negative-or a positive-temperature coefficient thermistor
(NTC, PTC) and an external voltage divider typically
develop this voltage (See Figure9). The EUP8057
compares this voltage against its internal V(TS1) and V(TS2)
thresholds to determine if charging is allowed. (See
Figure10). The temperature sensing circuit is immune to
any fluctuation in VCC, since both the external voltage
divider and the internal thresholds (V(TS1) and V(TS2)) are
referenced to VCC.
The resistor values of R(T1) and R(T2) are calculated by the
following equations:
For NTC Thermistors
5 × R
× R
TH
TC
TC
TH
R
R
=
----------------------- (3)
T1
3× (R
- R
)
5 × R
× R
TH
) - (7 × R
TC
=
--------------- (4)
)]
T2
[(2 × (R
TH
TC
For PTC Thermaistors
DS8057 Ver 1.8 Nov. 2006
11
EUP8057
Selecting Input Capacitor
Charge Inhibit Function
In most applications, all that is needed is high-frequency
decoupling capacitor. A 0.1µF ceramic, placed in
proximity to VCC and VSS pins, works well. The
EUP8057 works with both regulated and unregulated
external dc supplies. If a non-regulated supply is chosen,
the supply unit should have enough capacitance to hold
up the supply voltage to the minimum required input
voltage at maximum load. If not, more capacitance must
be added to the input of the charger.
The TS pin can be used as charge-inhibit input. The user
can inhibit charge by connecting the TS pin to VCC or
VSS (or any level outside the V(TS1) to V(TS2) thresholds).
Applying a voltage between the V(TS1) and V(TS2)
thresholds to pin TS returns the charger to normal
operation.
Charge Status Indication
The EUP8057 reports the status of the charger on the
3-state STAT pin. The following table summarized the
operation of the STAT pin.
Selecting Output Capacitor
The EUP8057 does not require any output capacitor for
loop stability.
Condition
STAT pin
High
Battery conditioning and charging
Charge complete(done)
Temperature fault or sleep mode
In order to maintain good AC stability in the Constant
Voltage mode, a minimum capacitance of 10µF is
recommenced to bypass the VBAT pin to VSS. This
capacitance provides compensation when there is no
battery load. In addition, the battery and interconnections
appear inductive at high frequencies. These elements are
in the control feedback loop during Constant Voltage
mode. Therefore, the bypass capacitance may be
necessary to compensate for the inductive nature of the
battery pack.
Virtually any good quality output filter capacitor can be
used, independent of the capacitor’s minimum ESR
(Effective Series Resistance) value. The actual value of
the capacitor and its associated ESR depends on the
forward transconductance (gm) and capacitance of the
external pass transistor. A 10µF tantalum or aluminum
electrolytic capacitor at the output is usually sufficient to
ensure stability for up to a 1A output current.
Low
Hi-Z
The STAT pin can be used to drive a single LED
(Figure1), dual-chip LEDs (Figure2) or for interface to a
host or system processor (Figure11). When interfacing
the EUP8057 to a processor, the user can use an output
port, to recognize the high-Z state of the STAT pin. In
this configuration, the user needs to read the input pin,
toggle the output port and read the STAT pin again. In a
high-Z condition, the input port always matches the
signal level on the output port.
Selecting An External Pass-Device (PMOS or PNP)
The EUP8057 is designed to work with both P-channel
MOSFET or PNP transistor. The device should be chosen
to handle the required power dissipation, given the circuit
parameters, PCB layout and heat sink configuration. The
following examples illustrate the design process for
PMOS device:
Low-Power Sleep Mode
When the input supply is disconnected, the charger
automatically enters power-saving sleep mode.
This feature prevents draining the battery pack during the
absence of VCC.
DS8057 Ver 1.8 Nov. 2006
12
EUP8057
P-Channel MOSFET
Reverse Blocking Protection
Selection steps for a P-channel MOSFET: We will use
the following conditions: VI=5V (with 10% supply
The optional reverse-blocking protection diode,
depicted in Figure1&2 provides protection from a
faulted or shorted input, or from a reversed-polarity
input source. Without the protection diode, a faulted of
shorted input would discharge the battery pack through
the body diode of the external pass transistor.
If a reverse-protection diode is incorporated in the
design, it should be chosen to handle the fast charge
current continuously at the maximum ambient
temperature. In addition, the reverse-leakage current of
the diode should be kept as small as possible.
tolerance);
I(REG)=1A, 4.2-V single-cell Li-Ion
(EUP8057-4.2). VI is the input voltage to the charger and
(REG) is the desired charge current. (See Figure2)
I
1. Determine the maximum power dissipation, PD , in
the transistor.
The worst case power dissipation happens when the
cell voltage, V(constant), is at its lowest (typically 3.1V
at the beginning of current regulation phase) and VI
is at its maximum. Where VD is the forward voltage
drop across the reverse-blocking diode (if one is
used), and VCS is the voltage drop across the current
sense resistor.
PD=(VI(MAX)－VD－VCS－VBAT)×IREG --------- (7)
PD=(5.5－0.4－0.2－3.1)×1A
PD=1.8W
2. Determine the package size needed in order to keep
the junction temperature below the manufacturer’s
recommended value, TJMAX. Calculate the total theta,
θ(°C/W), needed.
(T
- T
)
max(J) A(max)
θ
=
--------------(8)
JA
P
D
(150 - 40)
1.8
θ
=
θJA = 61°C/W
JA
It is recommended to choose a package with a lower θJA
than the number calculated above.
3. Select a drain-source voltage, V(DS), rating greater
than the maximum input voltage. A 12V device will
be adequate in this example.
4. Select a device that has at least 50% higher drain
current (ID) rating than the desired charge current
I(REG).
5. Verify that the available drive is large enough to
supply the desired charge current.
V
(GS)=(VD+V(CS)+VOL(CC))－VI(min) -------------- (9)
V(GS)=(0.4+0.2+1) － 4.5
V(GS)=-2.9
Where V(GS) is the gate-to-source voltage, VD is the
forward voltage drop across the reverse-blocking diode
(if one is used), and VCS is the voltage drop across the
current sense resistor, and VOL(CC) is the CC pin output
low voltage specification for the EUP8057.
Select a MOSFET with gate threshold voltage, V(GSth)
,
rating less than the calculated V(GS)
.
DS8057 Ver 1.8 Nov. 2006
13
EUP8057
Packaging Information
8-Pin MSOP
NOTE
1. Package body sizes exclude mold flash and gate burrs
2. Dimension L is measured in gage plane
3. Tolerance 0.10mm unless otherwise specified
4. Controlling dimension is millimeter. Converted inch dimensions are not necessarily exact.
DIMENSIONS IN MILLIMETERS
DIMENSIONS IN INCHES
SYMBOLS
MIN.
0.81
0.05
0.76
0.28
0.13
2.90
4.70
2.90
------
0.40
------
0
NOM.
0.95
0.09
0.86
0.30
0.15
3.00
4.90
3.00
0.65
0.53
------
------
MAX.
1.10
0.15
0.97
0.38
0.23
3.10
5.10
3.10
-----
0.66
0.10
6
MIN.
0.032
0.002
0.030
0.011
0.005
0.114
0.185
0.114
------
0.016
------
0
NOM.
0.0375
0.004
0.034
0.012
0.006
0.118
0.193
0.118
0.026
0.021
------
MAX.
0.043
0.006
0.038
0.015
0.009
0.122
0.201
0.122
------
0.026
0.004
6
A
A1
A2
b
C
D
E
E1
e
L
y
θ
------
DS8057 Ver 1.8 Nov. 2006
14
EUP8057
8-Pin TSSOP
NOTE
1. Package body sizes exclude mold flash protrusions or gate burrs
2. Tolerance ±0.10mm unless otherwise specified
3. Coplanarity: 0.1mm
4. Controlling dimension is millimeter. Converted inch dimensions are not necessarily exact.
5. Followed from JEDEC MO-153
DIMENSIONS IN MILLIMETERS
DIMENSIONS IN INCHES
SYMBOLS
MIN.
------
0.05
0.80
0.19
0.09
2.90
6.20
4.30
------
0.45
------
0
NOM.
------
------
1.00
------
------
3.00
6.40
4.40
0.65
MAX.
1.20
0.15
1.05
0.30
0.20
3.10
6.60
4.50
-----
0.75
0.10
8
MIN.
------
0.002
0.031
0.007
0.004
0.114
0.244
0.169
------
0.018
------
0
NOM.
------
------
0.039
------
------
0.118
0.252
0.173
0.026
0.024
------
------
MAX.
0.048
0.006
0.041
0.012
0.008
0.122
0.260
0.177
------
0.030
0.004
8
A
A1
A2
b
C
D
E
E1
e
L
0.60
------
------
y
θ
DS8057 Ver 1.8 Nov. 2006
15
EUP8057
SOP-8
X
Y
Z
Standard Solder Map
Dimension in Millimeters
Dimension in Inches
Symbols
Min.
4.80
5.80
3.80
1.194
1.45
0.00
0.33
0.19
0.40
0°
Max.
5.00
6.20
4.00
1.346
1.55
0.10
0.51
0.25
1.27
8°
Min.
0.189
0.228
0.150
0.047
0.057
0.000
0.013
0.007
0.016
0°
Max.
0.197
0.244
0.157
0.053
0.061
0.004
0.020
0.010
0.050
8°
A
B
C
D
E
H
F
L1
L2
M
N
40°
50°
40°
50°
DS8057 Ver 1.8 Nov. 2006
16
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