The TPD4S014 is a single-chip solution for USB charger port protection. This device offers low capacitance transient voltage suppressor (TVS) electrostatic discharge (ESD) clamps for the D+, D–, and standard capacitance for the ID pin. On the VBUS pin, this device provides overvoltage protection (OVP) up to 28 V DC. The overvoltage lockout feature ensures that if there is a fault condition at the VBUS line, the TPD4S014 is able to isolate the VBUS line to protect the internal circuitry from damage. There is a 17-ms turn-on delay after VBUS rises above the undervoltage lockout (UVLO) threshold in order to let the voltage stabilize before turning the nFET on. This function acts as a de-glitch and prevents unnecessary switching if there is any ringing on the line during connection.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPD4S014 | WSON (10) | 2.00 mm x 2.00 mm |
Changes from F Revision (September 2015) to G Revision
Changes from E Revision (June 2014) to F Revision
Changes from D Revision (April 2014) to E Revision
Changes from C Revision (December 2011) to D Revision
Changes from B Revision (October 2011) to C Revision
Changes from A Revision (June 2011) to B Revision
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
VBUSOUT | 1, 2 | Power Output | Connect to PCB internal PCB plane |
EN | 3 | IO | Enable Active-Low Input. Drive EN low to enable the switch. Drive EN high to disable the switch. |
ACK | 4 | I | Open-Drain Adapter-Voltage Indicator Output. ACK is driven low after the VIN voltage is stable between UVLO and OVLO for 17 ms (typ). Connect a pullup resistor from ACK to the logic I/O voltage of the host system. |
ID | 5 | IO | ESD-protected line |
D– | 6 | IO | ESD-protected line |
D+ | 7 | IO | ESD-protected line |
GND | 8 | Ground | Ground |
VBUS | 9, 10 | USB Input Power | Connector Side of VBUS |
Central PAD | Central PAD | Heat Sink | Electrically disconnected. Use as heat sink. Connect to GND plane via large PCB PAD |
VALUE | UNIT | ||||
---|---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V | |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±1000 | ||||
IEC 61000-4-2 Contact Discharge | D+, D–, ID, VBUS pins | ±1500 | |||
IEC 61000-4-2 Air-gap Discharge | D+, D–, ID, VBUS pins | ±1500 |
MIN | NOM | MAX | UNIT | |||
---|---|---|---|---|---|---|
TA | Operating free-air temperature | –40 | 85 | °C | ||
VI | Input voltage | VBUSOUT | –0.1 | 5.5 | V | |
VBUS | –0.1 | 5.5 | ||||
EN | –0.1 | 5.5 | ||||
ACK | –0.1 | 5.5 | ||||
D+, D-, ID, | –0.1 | 5.5 | ||||
IVBUS | VBUS continuous current(1) | VBUSOUT | 2.0 | A | ||
CVBUS | Capacitance on VBUS | VBUS Pin | 10 | µF | ||
CVBUSOUT | Capacitance on VBUSOUT | VBUSOUT Pin | 10 | µF | ||
RACK | Pullup resistor on ACK | ACK Pin | 10 | kΩ |
THERMAL METRIC(1) | TPD4S014 | UNIT | |
---|---|---|---|
DSQ (WSON) | |||
8 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 70.3 | °C/W |
RθJCtop | Junction-to-case (top) thermal resistance | 46.3 | °C/W |
RθJB | Junction-to-board thermal resistance | 33.8 | °C/W |
ψJT | Junction-to-top characterization parameter | 2.9 | °C/W |
ψJB | Junction-to-board characterization parameter | 33.5 | °C/W |
RθJCbot | Junction-to-case (bottom) thermal resistance | 16.3 | °C/W |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
IVBUS | VBUS Operating Current Consumption | No load on VBUS_OUT pin, VBUS = 5 V, EN = 0 V |
147.6 | 160 | µA | |
IVBUS_OFF | VBUS Operating Current Consumption | No load on VBUS_OUT pin, VBUS = 5 V, EN = 5 V |
111.8 | 120 | µA |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
TSHDN | Thermal Shutdown | 144 | °C | |||
TSHDN-HYS | Thermal-Shutdown Hysteresis | 23 | °C |