The BQ24392 is a dual single-pole single-throw (SPST) USB 2.0 high-speed isolation switch with charger detection capabilities for use with micro and mini-USB ports. This USB switch allows mobile phones, tablets, and other battery operated electronics to be charged from different adapters with minimal system software. The device’s charger detection circuitry can support USB Battery Charging Specification version 1.2 (BCv1.2) compliant, Apple™, TomTom™, and other non-standard chargers.
The BQ24392 device is powered through VBUS when a charger is attached to the micro or mini-USB port and has a 28-V tolerance to avoid the need for external protection.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
BQ24392 | UQFN (10) | 2.05 mm × 1.55 mm |
SPACER
SPACER
Changes from F Revision (July 2017) to G Revision
Changes from E Revision (February 2017) to F Revision
Changes from D Revision (January 2016) to E Revision
Changes from C Revision (January 2015) to D Revision
Changes from B Revision (October 2014) to C Revision
Changes from A Revision (June 2012) to B Revision
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
1 | SW_OPEN | O | USB switch status indicator Open-drain output. 10kΩ external pull-up resistor required SW_OPEN = LOW indicates when switch is connected SW_OPEN = HIGH-Z indicates when then switch is not connected |
2 | DM_HOST | I/O | D– signal to transceiver |
3 | DP_HOST | I/O | D+ signal to transceiver |
4 | CHG_AL_N | O | Charging status indicator Open-drain output. 10kΩ external pull-up resistor required CHG_AL_N = LOW indicates when charging is allowed CHG_AL_N = HIGH-Z indicates when charging is not allowed |
5 | GOOD_BAT | I | Battery status indication from system GOOD_BAT = LOW indicates a dead battery GOOD_BAT = HIGH indicates a good battery |
6 | GND | - | Ground |
7 | DP_CON | I/O | D+ signal from USB connector |
8 | DM_CON | I/O | D– signal from USB connector |
9 | VBUS | I | Supply pin from USB connector |
10 | CHG_DET | O | Charger detection indicator Push-Pull output to system CHG_DET = LOW indicates when a charger is not detected CHG_DET = HIGH indicates when a charger detected |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Input Voltage | VBUS | –2 | 28 | V |
CHG_AL_N | –2 | 28 | V | |
DM_HOST | –0.3 | 7 | V | |
DP_HOST | –0.3 | 7 | ||
GOOD_BAT | –0.3 | 7 | ||
DP_CON | –0.3 | 7 | ||
DM_CON | –0.3 | 7 | ||
CHG_DET | –0.3 | 7 | ||
Tstg | Storage temperature range | 65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±4000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±1500 | |||
IEC Contact discharge pins DP_CON and DM_CON to GND | ±8000 |
MIN | MAX | UNIT | ||
---|---|---|---|---|
VBUS | 4.75 | 5.25 | V | |
GOOD_BAT | 0 | VBUS | ||
DM_HOST | 0 | 3.6 | ||
DP_HOST | 0 | 3.6 | ||
DM_CON | 0 | 3.6 | ||
DP_CON | 0 | 3.6 |
THERMAL METRIC(1) | bq24392 | UNIT | |
---|---|---|---|
RSE | |||
10 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 167.7 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 78.8 | °C/W |
RθJB | Junction-to-board thermal resistance | 95.8 | °C/W |
ψJT | Junction-to-top characterization parameter | 4.7 | °C/W |
ψJB | Junction-to-board characterization parameter | 95.9 | °C/W |