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High-Voltage Monitoring for Battery Stacks
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Key Advantages
QV PDF 1µA, 4-Bump UCSP/SOT23, Precision Current-Sense Amplifier MAX9634 Industry's Smallest Current-Sense Amp: 1mm x 1mm with ICC < 1µA, VOS < 250µV, Gain Error
QV PDF 2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with Protector and Optional SHA-1 Authentication DS2775, DS2776, DS2777, DS2778 Industry's Smallest 2-Cell, Stand-Alone Fuel Gauge to Integrate an Li+ Protector and SHA-1 Authentication
QV PDF Standalone OCV-Based Fuel Gauge DS2786B 2-Wire Standalone Fuel Gauge Requires No Learn Cycle to Provide Initial Capacity Estimate or Maintain Accuracy During Use; Now Optimized for Smartphones with Push-Mail Feature
QV PDF 1µA, 4-Bump UCSP/SOT23, Precision Current-Sense Amplifier MAX9938 Industry's Smallest Current-Sense Amplifier: 1mm x 1mm with ICC < 1µA, VOS < 500µV, Gain Error < 0.5%
QV Advanced Smart Battery-Pack Controller MAX1788 Smallest, Lowest Power Consumption Battery-Pack Controller Integrates a User-Programmable Microcontroller Core, a Coulomb-Counting Fuel Gauge, a Multichannel Data-Acquisition Unit, and an SMBus v1.1-Compliant Master/Slave SMBus Interface
QV PDF High-Voltage, Low-Current Voltage Monitors in SOT Packages MAX6457, MAX6458, MAX6459, MAX6460
Key Specifications: Battery Protectors, Selectors and Monitors
Part Number
Functions
Battery Type
Interface
User Data Storage
Parameters Measured
Battery Protection
VSUPPLY
VSUPPLY
Package/Pins
Smallest Available Pckg.2 )
Oper. Temp.
min
max
max w/pins
DS2775 Fuel Gauge Protector Status Monitor
2 Cell Li-Ion
1-Wire
16 EEPROM
Current Temperature Time Voltage
Over Voltage Over-Current Over/Under Voltage
4
9.2
15
-20 to +70
DS2776 Fuel Gauge Protector Status Monitor
2 Cell Li-Ion
1-Wire
16 EEPROM
Current Temperature Time Voltage
Over Voltage Over-Current Over/Under Voltage
4
9.2
15
-20 to +70
DS2777 Fuel Gauge Protector Status Monitor
2 Cell Li-Ion
2-Wire
16 EEPROM
Current Temperature Time Voltage
Over Voltage Over-Current Over/Under Voltage
4
9.2
15
-20 to +70
DS2778 Fuel Gauge Protector Status Monitor
2 Cell Li-Ion
2-Wire
16 EEPROM
Current Temperature Time Voltage
Over Voltage Over-Current Over/Under Voltage
4
9.2
15
-20 to +70
DS2786B Fuel Gauge
1 Cell Li-Ion
2-Wire
32 EEPROM
Current Temperature Voltage
-
2.5
4.5
10
-40 to +85
See All Battery Protectors, Selectors and Monitors (25)
Key Specifications: Current Sense Amplifiers
Part Number
CMVR
CMVR
ICC
Bi-Dir. Curr. Sense
VSENSE_FS
VOS @25°C
Gain
Gain Accuracy @25°C
BW
Comp-
Package/Pins
Oper. Temp.
min
max
typ
recomm.
max
max
@ -3dB
MAX9634 NEW! 1.6
28
1
No
250
25 V/V 50 V/V 100 V/V 200 V/V
0.5
0
-40 to +85
MAX9938 500
See All Current Sense Amplifiers (26)
Key Specifications: Supervisors (1 Monitored Voltage)
Part Number
Reset Thresh.
Reset Out
Reset Out
tRESET
Watchdog Feature
Supervisor Features
ICC
Active Low
Active High
min
max
MAX6457 1.2 to 1.8 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5 >=5.5
Open Drain
-
No Watchdog
High Voltage (>6V) Latched Output
12.5
MAX6458 Open Drain
-
High Voltage (>6V) Latched Output Overvoltage/Window Monitor
MAX6460 -
Open Drain
<1ms
High Voltage (>6V) Overvoltage/Window Monitor
See All Supervisors (1 Monitored Voltage) (274)
Key Specifications: Supervisors (2 Monitored Voltages)
Part Number
Interface
Reset Thresh.
Reset Out
tRESET
Watchdog Feature
Supervisor Features
ICC
Active Low
min
max
MAX6459 R/C Adjustable
1.2 to 1.8 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5 >=5.5
Open Drain
<1ms
No Watchdog
Adjustable Reset Input High Voltage (>6V) Overvoltage/Window Monitor
12.5
See All Supervisors (2 Monitored Voltages) (84)
