MAX1647EAP Maxim Integrated Products, MAX1647EAP Datasheet - Page 13

• Manufacturer Part Number: MAX1647EAP
• Description: Battery Charger Lead-Acid/Li-Ion/NiCD/NiMH 4000mA 18V 20-Pin SSOP
• Manufacturer: Maxim Integrated Products
• Type: Battery Chargerr

Specifications of MAX1647EAP

• Package: 20SSOP
• Battery Type: Lead-Acid|Li-Ion|NiCD|NiMH
• Operating Supply Voltage: 7.5 to 28 V
• Output Current: 4000 mA
• Output Voltage: 18(Max) V

Figure 6a. MAX1647 Block Diagram
FROM LOGIC
FROM LOGIC BLOCK
BATT
THM
AGND
FROM LOGIC BLOCK
BATT
REF
BLOCK
CS
R
R
10kΩ
100kΩ
AGND
6
LEVEL SHIFT AND
CURRENT-SENSE
Chemistry-Independent Battery Chargers
R
GAIN OF 5.5
6-BIT DAC
AGND
______________________________________________________________________________________
REF
10kΩ
30kΩ
10
R
TO LOGIC BLOCK
TO LOGIC BLOCK
10-BIT DAC
AGND
10kΩ
3kΩ
REF
R
R
TO LOGIC BLOCK
10kΩ
500Ω
R
CURRENT_INREG
VOLTAGE_INREG
R
DACV
THERMISTOR_COLD
THERMISTOR_HOT
THERMISTOR_UR
THERMISTOR_OR
GMV
GMI
POWER_FAIL
CLAMP
CCI
CCV
NOTE: APPROX. REF/4 + V
MIN
TO 3/4 REF + V
BLOCK
LOGIC
3/8 REF = ZERO CURRENT
NOTE: REF/4 TO 3/4 REF
CCV_LOW
DCIN/4.5
CLAMP
TO REF
(MAX)
AGND
THRESH
THERM_SHUT
THRESH
AC_PRESENT
16mA
5
FROM LOGIC
SEL
SCL
SDA
INT
BLOCK
COMPARATOR
SUMMING
8mA
AGND
BLOCK
5.4V LINEAR
REGULATOR
R
SHUTDOWN
THERMAL
LEVEL
SHIFT
DCIN
4mA
3R
AGND
REF
CCV
2mA
VL
INTERNAL 3.9V
DRIVER
DRIVER
REFERENCE
PGND
BST
LX
VL
1mA
DHI
DLO
DCIN
IOUT
REF
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