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DS2770AE/T Datasheet(PDF) 1 Page - Dallas Semiconductor

Part # DS2770AE/T
Description  Battery Monitor and Charge Controller
PDF  27 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS2770AE/T Datasheet(HTML) 1 Page - Dallas Semiconductor

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041202
FEATURES
§ Integrated charge controller supporting both
rechargeable lithium and NiMH battery
technologies
§ Available in two configurations:
– Internal 25m
W current-sense resistor
– External user-selectable sense resistor
§ Current measurement:
– 15-bit bidirectional measurement
– Internal sense resistor configuration:
62.5
mA LSB and ±2A dynamic range
– External sense resistor configuration:
1.56
mV LSB and ±51.2mV dynamic range
§ Current accumulation
– Internal sense resistor: 0.25mAh LSB
– External sense resistor: 6.25
mVh LSB
§ Voltage measurement with 4.88mV resolution
§ Temperature measurement using integrated
sensor with 0.125°C resolution
§ 40 bytes of lockable EEPROM
§ 16 bytes of general-purpose SRAM
§ 42-day timer
§ Dallas 1-Wireâ interface with 64-bit ID
§ 1.8V logic levels
§ Low power consumption:
– Active current:
80
mA typical
– Sleep current:
0.5
mA typical
PIN ASSIGNMENT
PIN DESCRIPTION
UV
– Battery Undervoltage Detect Output
CC
– Charge Control Output
VCH – Charge Supply Input
SNS
– Sense Resistor Connection
IS2
– Current-Sense Input
IS1
– Current-Sense Input
VSS
– Device Ground
DQ
– Data Input/Output
VIN
– Voltage Sense Input
VDD – Power Supply Input
NC
– No Connect
ORDERING INFORMATION
ORDERING NUMBER
MARKING DESCRIPTION
DS2770AE
D2770EA
TSSOP, Ext. Sense Res., 4.1V Charge Voltage
DS2770BE
D2770EB
TSSOP, Ext. Sense Res., 4.2V Charge Voltage
DS2770AE/T&R
D2770EA
DS2770AE on Tape & Reel
DS2770BE/T&R
D2770EB
DS2770BE on Tape & Reel
DS2770AE-025
2770EAR
TSSOP, 25m
W Sense Res., 4.1V Charge Voltage
DS2770BE-025
2770EBR
TSSOP, 25m
W Sense Res., 4.2V Charge Voltage
DS2770AE-025/T&R
2770EAR
DS2770AE-025 on Tape & Reel
DS2770BE-025/T&R
2770EBR
DS2770BE-025 on Tape & Reel
DS2770
Battery Monitor and Charge Controller
www.maxim-ic.com
DS2770
16-Pin TSSOP
UV
VDD
VIN
DQ
VSS
VSS
VSS
NC
IS1
IS2
SNS
SNS
1
2
23
2
1
4
5
6
7
8
16
15
14
13
12
11
10
9
SNS
NC
VCH
CC
1-Wire is a registered trademark of Dallas Semiconductor.


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