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19-0785; Rev 2; 4/08
EVAALVUAAILTAIOBNLEKIT
High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
General Description
The MAX8804V/MAX8804W/MAX8804Y/MAX8804Z
intelligent, dual-input, stand-alone, constant-current,
constant-voltage (CCCV), thermally regulated linear
chargers are designed for a single-cell lithium-ion (Li+)
battery. They integrate the current-sense circuit, MOS
pass element, thermal-regulation circuitry, and overvolt-
age protection (OVP), and eliminate the reverse-block-
ing Schottky diode.
The MAX8804V/MAX8804W/MAX8804Z function as
stand-alone chargers to control the charging sequence
from the prequalification state through fast-charge, top-
off charge, and full-charge indication. The MAX8804Y
eliminates the prequalification state to allow startup into a
load without a battery. Proprietary thermal-regulation cir-
cuitry limits the die temperature when fast-charging or
while exposed to high ambient temperatures, allowing
maximum charging current without damaging the IC.
The MAX8804V/MAX8804W/MAX8804Y/MAX8804Z
achieve high flexibility by providing an adjustable DC/USB
fast-charge current through a simple single-wire interface
(SET input). The chargers automatically select between
either a USB or AC adapter input source. The AC adapter
charge current is programmable from 400mA to 700mA in
50mA steps through a serial interface. The USB charge
current is programmable to 95mA, 380mA, or 475mA
through the same interface. Other features include an
active-low battery charging-status indicator (CHG), an
active-low power-OK indicator (POK), an active-low USB
input detection output (USBPWR) on the MAX8804Y/
MAX8804Z, and battery pack detection (DETBAT) on the
MAX8804V/MAX8804W.
The MAX8804V has 120mA, 140mA, 180mA, and
200mA CHG top-off threshold settings, while the
MAX8804W/MAX8804Y/MAX8804Z have 70mA, 80mA,
90mA, and 100mA.
The MAX8804V/MAX8804W/MAX8804Y/MAX8804Z
accept a 4.15V to 30V DC source voltage or a 4.15V to
16V USB input voltage, but disable charging when
either input voltage exceeds 7.5V to protect against
unqualified or faulty input sources. The MAX8804V/
MAX8804W/MAX8804Y/MAX8804Z operate over the
extended temperature range (-40°C to +85°C) and are
available in a tiny 8-pin thermally enhanced 2mm x
3mm TDFN package.
Applications
Cell Phones/Smartphones MP3 Players
Digital Cameras
Other Handheld Devices
Portable Media Players
Features
Complete Chargers for Single-Cell Li+ Battery
Dual-Input, 30V AC Adapter/16V USB
No External FET, Blocking Diode, or Sense
Resistor Required
Automatic USB/AC Adapter Input Selection
Easy Programmable Fast-Charge Current and
Top-Off Threshold
Proprietary Die Temperature Regulation Control
±5% Fast-Charge Current-Limit Accuracy
Battery Pack Detection Input
(MAX8804V/MAX8804W)
Power-Present and Charger-Status Outputs
No Prequalification Charge (MAX8804Y)
Tiny 2mm x 3mm Thermally Enhanced TDFN
Package
Ordering Information
PART
PIN-
PACKAGE
TOP
MARK
MAX8804VETA+
MAX8804WETA+
8 TDFN-EP*
8 TDFN-EP*
AAQ
AAP
MAX8804YETA+
8 TDFN-EP*
AAD
MAX8804ZETA+
8 TDFN-EP*
AAC
*EP = Exposed paddle.
+Denotes a lead-free package.
Note: All devices are specified to operate over the -40°C to
+85°C operating temperature range.
Typical Application Circuit
+3.3V
AC
ADAPTER
1μF
USB
PORT
1μF
DC
MAX8804V CHG
GND
MAX8804W
MAX8804Y
POK
MAX8804Z
USB <USBPWR>
(DETBAT)
ENABLE/DISABLE
AND PROGRAMMING
SET
BAT
2.2μF
Li+
NOTE: () FOR MAX8804V/MAX8804W, < > FOR MAX8804Y/MAX8804Z
Pin Configuration appears 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.

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High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
ABSOLUTE MAXIMUM RATINGS
DC to GND .............................................................-0.3V to +30V
USB to GND ...........................................................-0.3V to +16V
BAT, CHG, SET, POK, USBPWR, DETBAT
to GND...............................................................-0.3V to +5.5V
Continuous Power Dissipation (TA = +70°C)
8-Pin TDFN 2mm x 3mm (derate 16.7mW/°C above +70°C)
(multilayer board) .......................................................1333mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°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
((VDC = 5V, VSET = 0V) or (VUSB = 5V, VSET = 5V), VBAT = unconnected, VDETBAT = 0V (MAX8804V/MAX8804W), TA = -40°C to
+85°C, unless otherwise noted.) (Note 1)
PARAMETER
DC AND USB
DC Input Voltage Range
USB Input Voltage Range
Input Operating Range
Input Undervoltage Threshold
Input Overvoltage Threshold
DC Input Supply Current
USB Input Supply Current
DC to BAT On-Resistance
USB to BAT On-Resistance
Input to BAT Comparator
Threshold (Note 2)
BAT
BAT Regulation Voltage
Battery Removal Detection
Threshold
DC Charging Current
CONDITIONS
MIN TYP MAX UNITS
(Notes 2, 3)
VIN rising, 500mV hysteresis (typ) (Note 2)
VIN rising, 200mV hysteresis (typ) (Note 2)
VUSB = 0V, IBAT = 0mA, charge mode
VSET = 5V, standby mode
VDC = VBAT = 4.3V, shutdown mode
VDC = 0V, VSET = 5V, IBAT = 0mA, charge mode
VSET = 0V, standby mode
VUSB = VBAT = 4.3V, shutdown mode
VDC = 3.7V, VBAT = 3.6V
VUSB = 3.7V, VBAT = 3.6V
VIN rising
VIN falling
0
0
4.15
3.85
7.2
145
28
14
7.00
4.0 4.15
7.5 7.8
800 1200
300 550
300 550
800 1200
300 550
300 550
0.55 1.0
0.65 1.2
260 385
55
V
V
V
V
V
µA
µA
Ω
Ω
mV
IBAT = 0mA
VBAT rising
Hysteresis
VUSB = 0V,
VBAT = 3.6V,
rising edge detection on
SET (MAX8804Y/
MAX8804Z)
TA = +25°C
TA = -40°C to +85°C
Default and 1st to 3rd
interface pulse
4th to 7th interface pulse
8th to 11th interface pulse
12th to 15th interface pulse
16th to 19th interface pulse
20th to 23rd interface pulse
24th to 27th interface pulse
4.179
4.158
4.40
4.200
4.200
4.67
0.1
4.221
4.242
4.90
475 500 525
523 550 578
570 600 630
428 450 473
380 400 420
618 650 683
665 700 735
V
V
mA
2 _______________________________________________________________________________________

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High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
ELECTRICAL CHARACTERISTICS (continued)
((VDC = 5V, VSET = 0V) or (VUSB = 5V, VSET = 5V), VBAT = unconnected, VDETBAT = 0V (MAX8804V/MAX8804W), TA = -40°C to
+85°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
DC Charging Current
VUSB = 0V,
VBAT = 3.6V,
rising edge detection
on SET (MAX8804V/
MAX8804W)
Default and 1st to 3rd interface
pulse
4th to 7th interface pulse
8th to 11th interface pulse
12th to 15th interface pulse
16th to 19th interface pulse
20th to 23th interface pulse
24th to 27th interface pulse
USB Charging Current
VDC = 0V,
VBAT = 3.6V, rising
edge detection on SET
(MAX8804Y/
MAX8804Z)
Default
1st interface pulse
2nd interface pulse
VDC = 0V,
VBAT = 3.6V, rising
edge detection on SET
(MAX8804V/
MAX8804W)
Default
1st interface pulse
2nd interface pulse
Soft-Start Time
Ramping time from 0 to 500mA
BAT Prequal Threshold
MAX8804V/MAX8804W/MAX8804Z only, VBAT rising,
300mV hysteresis (typ)
BAT Prequal Charge Current
BAT Leakage Current
SET
MAX8804V/MAX8804W/MAX8804Z only
VDC = VUSB = 0V, VBAT = 4.2V
Logic Input Thresholds
Logic-High Time
VSET rising
VSET falling
Pulse width required to program DC charge current
Logic-Low Time
Pulse width required to program USB charge current
SET DC Mode Shutdown Delay VUSB = 0V, VDC = 5V, measured from VSET low to high
SET USB Mode Shutdown Delay VDC = 0V, VUSB = 5V, measured from VSET high to low
SET Internal Pulldown Resistor
POK, CHG, USBPWR (USBPWR only for MAX8804Y/MAX8804Z)
Logic Output-Voltage Low
IPOK = ICHG = IUSBPWR = 5mA
Logic Output-Current High
VPOK = VCHG =
VUSBPWR = 5.5V,
VDC = VUSB = 0V
TA = +25°C
TA = +85°C
DETBAT (MAX8804V/MAX8804W only)
Logic Input Theshold
Rising
Falling
Pullup Resistor
MIN TYP MAX UNITS
428 450 473
523 550 578
475 500 525
380 400 420
570 600 630
618 650 683
665 700 735
90 95 100
mA
360 380 400
450 475 500
360 380 400
mA
450 475 500
90 95 100
250
µs
2.35 2.50 2.65
V
95 mA
2 µA
1.6
V
0.4
1
1000
µs
1
1000
µs
1.5 2 2.5 ms
1.5 2 2.5 ms
2 4 MΩ
60
0.001
0.01
500
1
mV
µA
1.6
V
0.4
63 kΩ
_______________________________________________________________________________________ 3

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High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
ELECTRICAL CHARACTERISTICS (continued)
((VDC = 5V, VSET = 0V) or (VUSB = 5V, VSET = 5V), VBAT = unconnected, VDETBAT = 0V (MAX8804V/MAX8804W), TA = -40°C to
+85°C, unless otherwise noted.) (Note 1)
CHG
PARAMETER
CHG Top-Off Threshold
(MAX8804W/MAX8804Y/
MAX8804Z)
CHG Top-Off Threshold
(MAX8804V)
CHG Hysteresis
CHG Detection Delay
THERMAL LOOP
Thermal-Regulation Set Point
Thermal-Regulation Gain
CONDITIONS
MIN TYP MAX UNITS
VDC = 0V, VUSB = 5V
Default, 4th, 8th,
12th, 16th, 20th,
24th, 28th interface
pulse
IBAT falling, battery is
charged, rising edge
on SET
VDC = 5V,
VUSB = 0V
1st, 5th, 9th, 13th,
17th, 21st, 25th
interface pulse
2nd, 6th, 10th,
14th, 18th, 22nd,
26th interface pulse
3rd, 7th, 11th, 15th,
19th, 23rd, 27th
interface pulse
VDC = 0V, VUSB = 5V
Default, 4th, 8th,
12th, 16th, 20th,
24th, 28th interface
pulse
IBAT falling, battery is
charged, rising edge
on SET
VDC = 5V,
VUSB = 0V
1st, 5th, 9th, 13th,
17th, 21st, 25th
interface pulse
2nd, 6th, 10th,
14th, 18th, 22nd,
26th interface pulse
3rd, 7th, 11th, 15th,
19th, 23rd, 27th
interface pulse
IBAT rising after top-off DC mode
is detected (Note 4) USB mode
IBAT falls below top-off threshold
60
60
67.5
75
52.7
60
90
105
135
150
3
80 100
80 100
90 112.5
100 125
70 87.5
80 100
120 150
140 175
180 225
200 250
57
51
45
mA
mA
mA
ms
Junction temperature when the charge current is reduced,
TJ rising
Reduction of IBAT for
increase of TJ
DC charging
USB charging
+105
-40
-24
°C
mA/°C
Note 1: Devices are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design
and characterization.
Note 2: VIN refers to the input for the IC. For the MAX8804V/MAX8804W/MAX8804Y/MAX8804Z, VIN is VDC with VUSB = 0V or VUSB
with VDC = 0V.
Note 3: Guaranteed by undervoltage and overvoltage threshold testing. For charge completion, the input voltage must be greater
than 4.28V.
Note 4: This hysteresis is for all charge current except 95mA. In the case of 95mA charge current, voltage-mode to current-mode
detection gives indication of charge mode.
4 _______________________________________________________________________________________

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High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
Typical Operating Characteristics
(VBAT = 3.6V; DC charge mode: VDC = 5V, VUSB = 0V, VDETBAT = 0V (MAX8804Y/MAX8804Z only), VSET = 0V or unconnected; USB
charge mode: VUSB = 5V, VDC = 0V, VSET = 5V; TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. INPUT VOLTAGE
(DC CHARGING MODE)
1.0
SUPPLY CURRENT vs. INPUT VOLTAGE
(USB CHARGING MODE)
1.0
0.8 0.8
0.6 0.6
0.4 0.4
0.2 0.2
0
0 3 6 9 12 15 18 21 24 27 30
INPUT VOLTAGE (V)
DISABLED-MODE SUPPLY CURRENT
vs. INPUT VOLTAGE (DC CHARGING MODE)
0.8
0
0 2 4 6 8 10 12 14 16
INPUT VOLTAGE (V)
STANDBY-MODE SUPPLY CURRENT
vs. INPUT VOLTAGE (USB CHARGING MODE)
0.8
0.6 0.6
0.4 0.4
0.2 0.2
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
0
0 2 4 6 8 10 12 14 16
INPUT VOLTAGE (V)
CHARGE CURRENT vs. BATTERY VOLTAGE
(DC CHARGING MODE)
600
CHARGE CURRENT vs. BATTERY VOLTAGE
(USB CHARGING MODE)
200
500 160
400
120
300
80
200
100 40
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
BATTERY VOLTAGE (V)
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
BATTERY VOLTAGE (V)
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