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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX17005 Datasheet

(MAX17005 - MAX17015) High-Performance Chargers

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19-4041; Rev 0; 2/08
www.DataSheet4UEV.cAoALmVUAAILTAIOBNLEKIT
1.2MHz Low-Cost,
High-Performance Chargers
General Description
The MAX17005/MAX17006/MAX17015 are high-frequen-
cy multichemistry battery chargers. These circuits fea-
ture a new high-frequency current-mode architecture
that significantly reduces component size and cost*.
The charger uses a high-side MOSFET with n-channel
synchronous rectifier. Widely adjustable charge current,
charge voltage, and input current limit simplify the con-
struction of highly accurate and efficient chargers.
The charge voltage and charge current are set with
analog control inputs. The charge current setting can
also be adjusted with a PWM input. High-accuracy cur-
rent-sense amplifiers provide fast cycle-by-cycle cur-
rent-mode control to protect against short circuits to the
battery and respond quickly to system load transients.
In addition, the charger provides a high-accuracy ana-
log output that is proportional to the adapter current. In
the MAX17015, this current monitor remains active
when the adapter is absent to monitor battery dis-
charge current.
The MAX17005 charges three or four Li+ series cells,
and the MAX17006 charges two or three Li+ series
cells. The MAX17015 adjusts the charge voltage setting
and the number of cells through a feedback resistor-
divider from the output. All variants of the charger can
provide at least 4A of charge current with a 10mΩ
sense resistor.
The charger utilizes a charge pump to control an n-channel
adapter selection switch. The charge pump remains
active even when the charger is off. When the adapter
is absent, a p-channel MOSFET selects the battery.
The MAX17005/MAX17006/MAX17015 are available in
a small, 4mm x 4mm x 0.8mm 20-pin, lead-free TQFN
package. An evaluation kit is available to reduce
design time.
Applications
Notebook Computers
Tablet PCs
Portable Equipment with Rechargeable Batteries
Features
High Switching Frequency (1.2MHz)
Controlled Inductor Current-Ripple Architecture
Reduced BOM Cost
Small Inductor and Output Capacitors
±0.4% Accurate Charge Voltage
±2.5% Accurate Input-Current Limiting
±3% Accurate Charge Current
Single-Point Compensation
Monitor Outputs for
±2.5% Accurate Input Current Limit
±2.5% Battery Discharge Current
(MAX17015 only)
AC Adapter Detection
Analog/PWM Adjustable Charge-Current Setting
Battery Voltage Adjustable for 3 and 4 Cells
(MAX17005) or 2 and 3 Cells (MAX17006)
Adjustable Battery Voltage (4.2V to 4.4V/Cell)
Cycle-by-Cycle Current Limit
Battery Short-Circuit Protection
Fast Response for Pulse Charging
Fast System-Load-Transient Response
Programmable Charge Current < 5A
Automatic System Power Source Selection with
n-Channel MOSFET
Internal Boost Diode
+8V to +26V Input Voltage Range
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX17005ETP+
-40°C to +85°C
20 Thin QFN
(4mm x 4mm)
T2044-3
MAX17006ETP+
-40°C to +85°C
20 Thin QFN
(4mm x 4mm)
T2044-3
MAX17015ETP+
-40°C to +85°C
20 Thin QFN
(4mm x 4mm)
+Denotes a lead-free package.
T2044-3
*Patent pending.
Pin Configuration and Minimal Operating Circuit appear at
end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX17005 Datasheet

(MAX17005 - MAX17015) High-Performance Chargers

No Preview Available !

www.DataSheet4U.com
1.2MHz Low-Cost,
High-Performance Chargers
ABSOLUTE MAXIMUM RATINGS
DCIN, CSSP, CSSN, BATT, CSIN, CSIP, ACOK,
LX to AGND .......................................................-0.3V to +30V
BST to LDO.............................................................-0.3V to +30V
CSIP to CSIN, CSSP to CSSN .............................. -0.3V to +0.3V
IINP, FB, ACIN to AGND.............................-0.3V to (VAA + 0.3V)
VAA, LDO, ISET, VCTL, CC to AGND .......................-0.3V to +6V
DHI to LX ....................................................-0.3V to (BST + 0.3V)
BST to LX..................................................................-0.3V to +6V
DLO to PGND ............................................-0.3V to (LDO + 0.3V)
PGND to AGND .................................................... -0.3V to +0.3V
Continuous Power Dissipation (TA = +70°C)
16-Pin TQFN (derate 16.9mW/°C above +70°C)....1349.1mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, VDCIN = VCSSP = VCSSN = 19V, VBATT = VCSIP = VCSIN = 16.8V, VVCTL = VAA, VISET = 1V, TA = 0°C to +85°C,
unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CHARGE-VOLTAGE REGULATION
Battery Regulation-Voltage Accuracy
CONDITIONS
MIN TYP MAX UNITS
2 cells, VVCTL = GND (for MAX17006)
3 cells, VVCTL = VAA (for MAX17005 and MAX17006)
4 cells, VVCTL = GND (for MAX17005)
8.3664
12.549
16.733
8.40
12.60
16.80
8.4336
12.651
16.867
V
FB accuracy using FB divider (for MAX17015)
(Note 1)
2.0916 2.1 2.1084
FB Input Bias Curent
-1 +1 μA
VCTL Range
2 cells (for MAX17006), 4 cells (for MAX17005)
3 cells (for MAX17005 and MAX17006)
0.0
VAA/2
+0.2
VAA/2
-0.2
VAA
V
VCTL Gain
VCTL Input Bias Current
CHARGE-CURRENT REGULATION
ISET Range
ISET Full-Scale Setting
VCELL/VVCTL
VVCTL = GND and VCTL = VAA
ISET = 1.4V
ISET = 99.9% duty cycle
5.85 6 6.15 V/V
-1 +1 μA
0.0
VAA/2
V
80
mV
60
Full-Charge Current Accuracy
(CSIP to CSIN)
VBATT = 1V to 16.8V
VISET = VAA/4 or ISET 58.2 60 61.8 mV
= 99.9% duty cycle
-3
+3 %
VISET = VAA/6 or ISET 38.2 40 41.8 mV
= 66.7% duty cycle
-4.5
+4.5 %
Trickle Charge-Current Accuracy
VISET = VAA/80 or ISET
= 5% duty cycle
1.4
-52
3 4.6 mV
+52 %
Charge-Current Gain Error
Charge-Current Offset Error
BATT/CSIP/CSIN Input Voltage Range
Based on VISET = VVAA/4 and VISET = VVAA/80
Based on VISET = VVAA/4 and VISET = VVAA/80
-2
-1.4
0
+2
+1.4
24
%
mV
V
ISET Power-Down Mode Threshold
ISET falling
ISET rising
21 26 31
mV
33 40 47
2 _______________________________________________________________________________________


Part Number MAX17005
Description (MAX17005 - MAX17015) High-Performance Chargers
Maker Maxim Integrated Products
Total Page 24 Pages
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