Rainbow-electronics DS2770 Manuel d'utilisateur télécharger pdf (Page 5)

DS2770

5 of 27

APPLICATION EXAMPLE Figure 2

VDD

FMMT718

4403

VCH

SNS

IS2

VIN

VSS

IS1

Lithium

Protection

Circuit

4.7kW 1kW1kW100W150W

0.1mF0.1mF

360W

0.1mF

SNS

(1)

150W

PACK+

CHARGE

SOURCE

PACK-

DATA

SNS-INT

(2)

10KW

Voltage

Sense

DS2770

VSSSNS

IS2 IS1

5.1V

1 — R

SNS

is present for external sense resistor configuration only.

2 — R

SNS-INT

is present for internal sense resistor configuration only.

1 2 3 4 5 6 7 8 9 10 ... 26 27

FEATURES 1
PIN ASSIGNMENT 1
PIN DESCRIPTION 1
ORDERING INFORMATION 1
DESCRIPTION 2
BLOCK DIAGRAM Figure 1 3
APPLICATION EXAMPLE Figure 2 5
POWER MODES 6
CHARGER FUNCTION 6
NiMH CHARGER OPERATION 8
SECONDARY CHARGE TERMINATION 9
CHARGE TIME REGISTER Figure 4 9
CURRENT MEASUREMENT 9
CURRENT ACCUMULATORS 10
CURRENT OFFSET COMPENSATION 10
11 of 27 11
12 of 27 12
STATUS REGISTER 13
MEMORY MAP Figure 11 13
14 of 27 14
Address 01 14
EEPROM REGISTER 15
1-WIRE BUS SYSTEM 15
64-BIT NET ADDRESS 15
NET ADDRESS FORMAT Figure 14 16
CRC GENERATION 16
HARDWARE CONFIGURATION 16
TRANSACTION SEQUENCE 17
NET ADDRESS COMMANDS 17
FUNCTION COMMANDS 18
19 of 27 19
20 of 27 20
FUNCTION COMMANDS Table 3 21
I/O SIGNALING 21
PULSE) Figure 18 22
WRITE TIME SLOTS 22
READ TIME SLOTS 22
24 of 27 24
ELECTRICAL CHARACTERISTICS: 25
TEMPERATURE, VOLTAGE, CURRENT 25
(0°C to 50°C, 2.7V £ V 25
£ 4.5V) 25
26 of 27 26
1-WIRE INTERFACE 27
(-20°C to 70°C, 2.7V £ V 27
£ 5.5V) 27

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Rainbow-electronics DS2770 Manuel d'utilisateur Page 5

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