BQ25173DSGR
Active800-MA LINEAR CHARGER FOR 1-CELL TO 4-CELL SUPERCAPACITOR
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BQ25173DSGR
Active800-MA LINEAR CHARGER FOR 1-CELL TO 4-CELL SUPERCAPACITOR
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ25173DSGR |
|---|---|
| Battery Chemistry | Supercapacitor |
| Battery Pack Voltage | 10.5 V |
| Charge Current - Max [Max] | 800 mA |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Voltage, Over Current, Short Circuit |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 4 |
| Number of Cells [Min] | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 8-WFDFN Exposed Pad |
| Programmable Features | Current, Voltage |
| Supplier Device Package | 8-WSON (2x2) |
| Voltage - Supply (Max) [Max] | 18 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.14 | |
| 10 | $ 1.02 | |||
| 25 | $ 0.97 | |||
| 100 | $ 0.79 | |||
| 250 | $ 0.74 | |||
| 500 | $ 0.66 | |||
| 1000 | $ 0.52 | |||
| Digi-Reel® | 1 | $ 1.14 | ||
| 10 | $ 1.02 | |||
| 25 | $ 0.97 | |||
| 100 | $ 0.79 | |||
| 250 | $ 0.74 | |||
| 500 | $ 0.66 | |||
| 1000 | $ 0.52 | |||
| Tape & Reel (TR) | 3000 | $ 0.48 | ||
| 6000 | $ 0.46 | |||
| 15000 | $ 0.44 | |||
| Texas Instruments | LARGE T&R | 1 | $ 0.84 | |
| 100 | $ 0.65 | |||
| 250 | $ 0.48 | |||
| 1000 | $ 0.34 | |||
Description
General part information
BQ25173 Series
The BQ25173 is an integrated 800-mA linear charger for 1- to 4-cell supercapacitors targeted at space-limited applications. The device has a single power output that charges the supercapacitor. The system load can be placed in parallel with the supercapacitor; the charge current is shared between the system and supercapacitor.
During charging, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold, TREG, is exceeded. This feature allows for fast charging of a fully discharged supercapacitor.
The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge function control. The charge voltage and fast-charge current are programmable through external resistors.
Documents
Technical documentation and resources
