MAX1667 Datasheet, PDF (20/28 Pages) Maxim Integrated Products – Chemistry-Independent, Level 2 Smart Battery Charger

Chemistry-Independent,
Level 2 Smart Battery Charger
18.416V
16.368V
V_REF = 4.096V
DCIN > 20V
12.592V
8.400V
4.192V
0V
0b000000000000xxxx
0x000x
0b000100000110xxxx
0x106x
0b001000001101xxxx
0x20Dx
0b001100010011xxxx
0x313x
ChargingVoltage() D15–D0 DATA
0b010010100000xxxx
0x47Fx
Figure 9. ChargingVoltage() Data to Voltage Mapping
0b111111111111xxxx
0xFFFx
160
SEL = VL
115
SEL = OPEN
1000
100
10
35
SEL = GND
5
A: 0x0080 0x0380
B: (128) (896)
C: 0b00001 0b00111
0x0B80 0x0F80 0xFFFF
(2944) (3968) (65535)
0b10111 0b11111
A: ChargingCurrent( ) CODE (D15–D0)
B: EQUIVALENT DECIMAL CODE
C: CURRENT DAC CODE (DA4–DA0)
1
0.1
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110
TEMPERATURE (°C)
Figure 10. Average Voltage Between CS and BATT vs. Code
Figure 11. Typical Thermistor Characteristics
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