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Maxim > Solutions > Computers: Notebook

High-Voltage Monitoring for Battery Stacks

DATA SHEETS
Display Title / Parts Key Advantages
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 Evaluation Kit for the MAX9938
MAX9938EVKIT

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    Ultra-Precision, High-Side Current-Sense Amplifiers
MAX9922, MAX9923

Use Autozeroing Front-End to Achieve VOS < 20µV, Allowing Small VSENSE and RSENSE
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 Notebook Battery-Pack Controller Provides
Accurate Fuel Gauging and Protection Features
QV  PDF High-Voltage, Low-Current Voltage Monitors in SOT Packages
MAX6457, MAX6458, MAX6459, MAX6460




Key Specifications:   Current Sense Amplifiers
Part Number CMVR (min) (V) CMVR (max) (V) ICC (typ) (µA) Bidirectional Current-Sense VSENSE_FS (recommended) (mV) VOS (max) @25°C (µV) AV (Gain) Gain Accuracy @25°C (max) (%) -3dB BW (kHz) Comparators Package Operating Temp. Range (°C)
MAX9938  NEW! 1.6 28 1 No 100
25
50
500 100 V/V
25 V/V
50 V/V
0.5 125
30
60
0 MicroDFN/6
SOT-23/5
UCSP/0
-40 to +85
See All Current Sense Amplifiers (22)

Key Specifications:   Supervisors (1 Monitored Voltage)
Part Number Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Supervisor Features Max. ICC (µA)
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  -  85ms to 300ms
<1ms
No Watchdog High Voltage (>6V)
Latched Output
12.5
MAX6458  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5
Open Drain  -  85ms to 300ms
<1ms
No Watchdog High Voltage (>6V)
Latched Output
Overvoltage/Window Monitor
12.5
MAX6460  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 High Voltage (>6V)
Overvoltage/Window Monitor
12.5
See All Supervisors (1 Monitored Voltage) (268)

Key Specifications:   Supervisors (2 Monitored Voltages)
Part Number Interface Reset Threshold Range (V) Active-Low Reset Output Min. Reset Timeout Range Watchdog Feature Supervisor Features Max. ICC (µA)
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) (70)




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