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PDF MAX8606 Data sheet ( Hoja de datos )
| Número de pieza | MAX8606 | |
| Descripción | Li+ Linear Battery Charger | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX8606 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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19-3795; Rev 0; 8/05
EVAALVUAAILTAIOBNLEKIT
USB/AC Adapter, Li+ Linear Battery Charger
with Integrated 50mΩ Battery Switch in TDFN
General Description
The MAX8606 complete 1-cell Li+ battery charge-man-
agement IC operates from either a USB port or AC
adapter. It integrates a battery disconnect switch, cur-
rent-sense circuit, PMOS pass element, and thermal-
regulation circuitry, while eliminating the external
reverse-blocking Schottky diode, to create a simple
and small charging solution. The charging sequence
initiates from power-OK indication, through prequalifi-
cation, fast-charge, top-off charge, and finally charg-
ing-complete indication for single-cell Li+ batteries.
Charging is controlled using constant current, constant
voltage, or constant die-temperature (CCCVCTJ) regu-
lation for safe operation in handhelds.
Two logic inputs (EN1 and EN2) select suspend mode,
100mA, 500mA, or ≤1A input current limits to suit USB
requirements. Proprietary thermal-regulation circuitry
limits the die temperature to +100°C to prevent exces-
sive heat on the system PC board. Additional safety
features include an NTC thermistor input (THM) and
internal timers to protect the battery. A 3.5V to 4.2V SYS
output, in conjunction with the low-RDSON battery
switch, powers the system even when the battery is
www.DataSheet4U.com deeply discharged or not installed. The IC also offers a
+3.3V/500µA output (VL), a charging status flag (CHG),
and an input-supply detection flag (POK). The
MAX8606 operates from a +4.25V to +5.5V supply and
includes undervoltage lockout below +3.4V and over-
voltage protection up to +14V.
Applications
Cellular Phones, Smartphones, PDAs
Digital Cameras, MP3 Players
USB Appliances, Charging Cradles and Docks
Features
♦ Small 3mm x 3mm Thermally Enhanced TDFN
Package (0.8mm max height)
♦ USB-Compliant Suspend Mode (20µA)
♦ Selectable 100mA, 500mA, and Up to 1A Input
Current Limits
♦ USB or AC Adapter Input
♦ +6V to +14V Input Overvoltage Protection
♦ Input UVLO Below +4V Rising (3.5V Falling)
♦ Automatic Current Sharing Between Battery
Charging and System
♦ Die Temperature Regulation (+100°C)
♦ Prequal, Fast-Charge, and Top-Off Timers
♦ Low Dropout Voltage, 250mV at 0.5A
♦ NTC Thermistor Input
♦ Charge Status and Input-Supply Detection Flags
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX8606ETD+ -40°C to +85°C 14 TDFN 3mm x
3mm (T1433-1)
+Denotes lead-free package.
TOP
MARK
AAF
Typical Operating Circuit
TOP VIEW
Pin Configuration
14 13 12 11 10 9 8
MA8606
12 34 567
USB/AC-ADAPTER
OVP UP TO 14V
INPUT
CURRENT
SELECTION
STAND-ALONE
µP
IN
GND
VL
CONTROL
STATUS
INDICATORS
CHG
POK
SYS 3.5V TO 4.2V
0.1µF
EN1 BAT
EN2
THM
TMR
SETI
MAX8606
Li+
TDFN
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1 page  
USB/AC Adapter, Li+ Linear Battery Charger
with Integrated 50mΩ Battery Switch in TDFN
Typical Operating Characteristics
(VIN = +5V, VBAT = 3.6V, ISYS = 0, EN1 = 1, EN2 = 0, circuit of Figure 3, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. INPUT VOLTAGE
2.0
1.8
1.6 VIN FALLING
1.4
1.2
1.0
0.8
0.6
0.4 VIN RISING
0.2 VBAT = 3.3V
0
0 2 4 6 8 10 12 14
INPUT VOLTAGE (V)
SUSPEND-MODE SUPPLY CURRENT
vs. INPUT VOLTAGE
100
90
80
70
60
50
40
30
20 EN1 = 1
10 EN2 = 1
0
0 2 4 6 8 10 12 14
INPUT VOLTAGE (V)
CHARGE CURRENT vs. BATTERY VOLTAGE
1000
900
800
700
600
500
400
300
200
100
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VBAT (V)
CHARGE CURRENT vs. INPUT VOLTAGE
1000
900
800 VIN
RISING
700
600
500
400
300
VIN
FALLING
200
100
0
0 2 4 6 8 10 12 14
VIN (V)
CHARGE CURRENT
vs. INPUT VOLTAGE HEADROOM
1000
900
800
700
600
500
400
300
200
VBAT = 4V
100
0
0 50 100 150 200 250 300 350 400 450 500
(VIN - VBAT) (mV)
BATTERY REGULATION VOLTAGE
vs. TEMPERATURE
4.24
4.23
4.22
4.21
4.20
4.19
4.18
4.17
4.16
4.15
-40 -15 10 35 60 85
TA (°C)
600
550
500
450
400
350
300
250
200
-40
CHARGE CURRENT
vs. AMBIENT TEMPERATURE
EN1 = 0
EN2 = 1
-15 10 35 60
TA (°C)
85
1100
1000
900
800
700
600
500
400
300
200
100
-40
CHARGE CURRENT
vs. AMBIENT TEMPERATURE
CONSTANT TJ
REGULATION
VIN = 5.5V
VBAT = 3.2V
EN1 = 1
EN2 = 0
-15 10 35 60 85
TA (°C)
_______________________________________________________________________________________ 5
5 Page 
USB/AC Adapter, Li+ Linear Battery Charger
with Integrated 50mΩ Battery Switch in TDFN
+5V AC-ADAPTER
INPUT
VUSB
+5V
R3
10kΩ
Q1
IRF7534D1
C1
4.7µF
VSYS
C2
0.1µF
IN
GND
CHG
VL
R1
23.58kΩ
SETI
SYS
BAT
MAX8606
THM
POK
EN1
EN2
TMR
C3
4.7µF
4.2V Li+
SYS LDO
OUTPUT
VI/O
R2
100kΩ
C4
0.1µF
POWER-OK
OUTPUT
CHARGE-CURRENT
SELECTION
INPUTS
Figure 4. USB Application with AC Adapter
VBUS
GND
C1
4.7µF
USB PORT
C2
0.1µF
R1
23.58kΩ
D+
D-
SYS
C3
4.7µF
IN BAT
4.2V Li+
GND VI/O
MAX8606 THM
R2
CHG 100kΩ
POK
VL C4
0.1µF
SETI
TMR
EN1
EN2
VI/O
R3
100kΩ
SYSTEM
Figure 5. USB Charger Application
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX8606.PDF ] | |
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