BQ24232XH
The BQ24232XH is an electronic component from Texas Instruments. View the full BQ24232XH datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Integrated Circuits (ICs)
Overview
Figure 11. Start-up Flow Diagram
Pin Configuration
RGT Package 16 Pins Top View
Pin Functions
| PIN | PIN | PIN |
|---|---|---|
| NAME | NUMBER | NUMBER |
| NAME | '230H | '232H |
| BAT | 2,3 | 2, 3 |
| CE | 4 | 4 |
| CHG | 9 | 9 |
| EN1 | 6 | 6 |
| EN2 | 5 | 5 |
| ILIM | 12 | 12 |
| IN | 13 | 13 |
| ISET | 16 | 16 |
Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| INPUT | ||||||
| UVLO | Undervoltage lockout | V IN : 0 V → 4 V | 3.2 | 3.3 | 3.4 | V |
| V hys(UVLO) | Hysteresis on UVLO | V IN : 4 V → 0 V | 200 | 300 | mV | |
| V IN(DT) | Input power detection threshold | Input power detected when V IN > V BAT + V IN(DT) V BAT = 3.6 V, VIN: 3.5 V → 4 V | 55 | 95 | 145 | mV |
| V hys(INDT) | Hysteresis on V IN(DT) | VBAT = 3.6 V, V IN : 4 V → 3.5 V | 20 | mV | ||
| t DGL(PGOOD) | Deglitch time, input power detected status | Time measured from V IN : 0 V → 5 V 1- μ s rise time to PGOOD = LO | 2 | ms | ||
| V OVP | Input overvoltage protection threshold | ('230H) V IN : 5 V → 7 V | 6.4 | 6.6 | 6.8 | V |
| V OVP | Input overvoltage protection threshold | ('232H) V IN : 5 V → 11 V | 10.2 | 10.5 | 10.8 | V |
| V hys(OVP) | Hysteresis on OVP | ('230H) V IN : 7 V → 5V | 110 | mV | ||
| V hys(OVP) | Hysteresis on OVP | ('232H) V IN : 11 V → 5 V | 175 | mV | ||
| t DGL(OVP) | Input overvoltage blanking time | 50 | μ s | |||
| t REC(OVP) | Input overvoltage recovery time | Time measured from V IN : 11 V → 5 V 1 μ s fall time to PGOOD = LO | 2 | ms | ||
| ILIM, ISET SHORT-CIRCUIT TEST | ILIM, ISET SHORT-CIRCUIT TEST | |||||
| I SC | Current source | V IN > UVLO and V IN > V BAT +V IN(DT) | 1.3 | mA | ||
| V SC | V IN > UVLO and V IN > V BAT +V IN(DT) | 520 | mV | |||
| QUIESCENT CURRENT | QUIESCENT CURRENT | |||||
| I BAT(PDWN) | Sleep current into BAT pin | CE = LO or HI, input power not detected, no load on OUT pin, T J = 85°C | 6.5 | μ A |
Absolute Maximum Ratings
over the 0°C to 125°C operating free-air temperature range (unless otherwise noted)
| MIN | MAX | UNIT | |||
|---|---|---|---|---|---|
| V I | Input voltage | IN (with respect to VSS) | -0.3 | 28 | V |
| V I | OUT (with respect to VSS) | -0.3 | 7 | V | |
| V I | BAT (with respect to VSS) | -0.3 | 5 | V | |
| V I | EN1, EN2, CE, TS, ISET, PGOOD, CHG, ILIM, TMR, TD, ITERM (with respect to VSS) | -0.3 | 7 | V | |
| I I | Input current | IN | 600 | mA | |
| I O | Output current (continuous) | OUT | 1700 | mA | |
| I O | BAT (Discharge mode) | 1700 | mA | ||
| Output sink current | CHG, PGOOD | 15 | mA | ||
| T J | Junction temperature | -40 | 150 | °C | |
| T stg | Storage temperature | -65 | 150 | °C |
Recommended Operating Conditions
| MIN | MAX | UNIT | |||
|---|---|---|---|---|---|
| IN voltage range | IN voltage range | 4.35 | 26 | V | |
| V I | IN operating voltage range | '230H | 4.35 | 6.4 | V |
| '232H | 4.35 | 10.2 | V | ||
| I IN | Input current, IN pin | Input current, IN pin | 500 | mA | |
| I OUT | Current, OUT pin | Current, OUT pin | 1500 | mA | |
| I BAT | Current, BAT pin (discharging) | Current, BAT pin (discharging) | 1500 | mA | |
| I CHG | Current, BAT pin (charging) | Current, BAT pin (charging) | 500 | mA | |
| T J | Junction temperature | Junction temperature | -40 | 125 | °C |
| R ILIM | Maximum input current programming resistor | Maximum input current programming resistor | 3.1 | 7.8 | k Ω |
| R ISET | Fast-charge current programming resistor | Fast-charge current programming resistor | 1.74 | 34.8 | k Ω |
| R TMR | Timer programming resistor | Timer programming resistor | 18 | 72 | k Ω |
| R ITERM | Termination programming resistor | '232H | 0 | 15 | k Ω |
Thermal Information
| THERMAL METRIC | (1) | bq2423xx RGT | UNIT |
|---|---|---|---|
| 16 PINS | |||
| θ JA | Junction-to-ambient thermal resistance | 44.5 | °C/W |
| θ JCtop | Junction-to-case (top) thermal resistance | 54.2 | °C/W |
| θ JB | Junction-to-board thermal resistance | 17.2 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 1.0 | °C/W |
| ψ JB | Junction-to-board characterization parameter | 17.1 | °C/W |
| θ JCbot | Junction-to-case (bottom) thermal resistance | 3.8 | °C/W |
Typical Application
The bq2423xH devices power the system while simultaneously and independently charging the battery. The input power source for charging the battery and running the system can be an AC adapter or a USB port. The devices feature dynamic power-path management (DPPM), which shares the source current between the system and battery charging and automatically reduces the charging current if the system load increases. When charging from a USB port, the input dynamic power management (VIN-DPM) circuit reduces the input current limit if the input voltage falls below a threshold, preventing the USB port from crashing. The power-path architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents.
The bq24232xH is configureable to be host controlled for selecting different input current limits based on the input source connected, or a fully stand alone device for applications that do not support multiple types of input sources.
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| BQ24232H | Texas Instruments | — |
| BQ24232HRGTR | Texas Instruments | 16-VFQFN Exposed Pad |
| BQ24232HRGTT | Texas Instruments | — |
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