The TPD4S012 is a four-channel Transient Voltage Suppressor (TVS) based Electrostatic Discharge (ESD) protection diode array for USB chargers and USB On-The-Go (OTG) interfaces.
The TPD4S012 provides IEC 61000-4-2 system level ESD Protection featuring 15 V tolerance on the VBUS line. The device is ideal for providing circuit protection for USB charger and OTG applications due to its high-voltage tolerance at the VBUS line and small flow-through package.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPD4S012 | SON (6) | 1.45 mm x 1.00 mm |
Changes from A Revision (November 2009) to B Revision
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
DRY PIN NO. |
NAME | ||
1 | D+ | ESD clamp | Provides ESD protection to the high-speed differential data lines |
2 | D– | ESD clamp | Provides ESD protection to the high-speed differential data lines |
3 | ID | ESD clamp | Provides ESD protection to the high-speed differential data lines |
4 | GND | PWR | Ground |
5 | N.C. | – | Not internally connected |
6 | VBUS | ESD clamp | ESD clamp for high-voltage tolerant VBUS line(s) |
PARAMETER | MIN | MAX | UNIT | |||
---|---|---|---|---|---|---|
VBUS voltage tolerance | VBUS pin | –0.3 | 20 | V | ||
IO voltage tolerance | D+, D–, ID pins | –0.3 | 6 | V | ||
TA | Operating free-air temperature range | –40 | 85 | °C | ||
IEC 61000-4-2 Contact Discharge | D+, D–, ID | ±10 | kV | |||
VBUS pin | ±10 | kV | ||||
IEC 61000-4-2 Air-Gap Discharge | D+, D–, ID | ±10 | kV | |||
VBUS pin | ±9 | kV | ||||
IEC 61000-4-5 Surge (tp = 8/20 μs) | Peak pulse Power (All pins) | 60 | W | |||
Peak pulse current (All Pins) | 3 | A |
MIN | MAX | UNIT | |||
---|---|---|---|---|---|
Tstg | Storage temperature range | –65 | 125 | °C | |
V(ESD) | Electrostatic discharge | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) | –2.5 | 2.5 | kV |
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) | –1 | 1 |
PARAMETER | MIN | MAX | UNIT | |
---|---|---|---|---|
TA Operating free-air Temperature Range | –40 | 85 | °C | |
Operating Voltage | VBUS Pin | 0 | 15 | V |
D+, D–, ID Pins | 0 | 5.5 |
THERMAL METRIC(1) | TPD4S012 | UNIT | |
---|---|---|---|
DRY | |||
6 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 461.3 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 219.6 | |
RθJB | Junction-to-board thermal resistance | 343.7 | |
ψJT | Junction-to-top characterization parameter | 162.5 | |
ψJB | Junction-to-board characterization parameter | 343.7 |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||||
---|---|---|---|---|---|---|---|---|---|
IVBUS | VBUS operating current | VBUS = 19 V | D+, D–, ID pins open | 0.1 | 0.5 | μA | |||
IIO | IO port current | VIO = 2.5 V, VBUS = 5 V | D+, D–, ID pins | 0.1 | 0.5 | μA | |||
VD | Diode forward voltage | IIO = 8 mA | D+, D–, ID pins (lower clamp diode) | 0.6 | 0.8 | 0.95 | V | ||
CVBUS | VBUS pin capacitance | VBUS = 5 V | 11 | 15 | pF | ||||
CIO | IO capacitance | VIO = 2.5 V | D+, D–, ID pins | 0.8 | 1 | pF | |||
RDYN | Dynamic resistance | IIO = 1.5 A | D+, D–, ID, and VBUS pins, including central clamp dioded during positive ESD pulse | 1.2 | Ω | ||||
IIO = 1 A | D+, D–, ID, and VBUS pins, including central clamp diode during negative ESD pulse | 1 | |||||||
VBR | Breakdown voltage | IIO = 1 mA | D+, D–, ID pins | 6 | 9 | V | |||
VBUS pin(s) | 20 | 24 |
The TPD4S012 is a four-channel Transient Voltage Suppressor (TVS) based Electrostatic Discharge (ESD) protection diode array for USB chargers and USB On-The-Go (OTG) interfaces.
The TPD4S012 provides IEC 61000-4-2 system level ESD Protection featuring 15 V tolerance on the VBUS line. The device is ideal for providing circuit protection for USB charger and OTG applications due to its high-voltage tolerance at the VBUS line and small flow-through package.
Integrated ESD Clamps on the D+, D–, VBUS, and ID pins provide single-chip ESD protection for USB High Speed, USB-OTG, and USB charger interfaces.
D+, D– and ID USB Signal pins have low capacitance (0.8 pF Typ).
The VBUS line has a 11 pF (Typ) capacitance.
The low capacitance (0.8 pF Typ) of the data lines supports speeds in excess of 480 Mbps.
IEC 61000-4-2 (Level 4 contact) system level ESD compliance measured at the D+, D– and ID pins is rated for ±10 kV contact and air-gap discharge.
IEC 61000-4-5 system level surge compliance measured at D+, D–, ID, and VBUS pins rated to 3 A of peak pulse current.
The TPD4S012 is a passive integrated circuit that triggers when voltages are above VBR or below the lower diode's Vf. During ESD events, voltages as high as ±10 kV (contact) can be directed to ground via the internal diode network. Once the voltages on the protected line fall below the trigger levels of TPD4S012 (usually within 10's of nano-seconds), the device reverts to passive.
The TPD4S012 is a four-channel Transient Voltage Suppressor (TVS) based Electrostatic Discharge (ESD) protection diode array for USB chargers and USB On-The-Go (OTG) interfaces.
The TPD4S012 provides IEC 61000-4-2 system level ESD Protection featuring 15 V tolerance on the VBUS line. The device is ideal for providing circuit protection for USB charger and OTG applications due to its high-voltage tolerance at the VBUS line and small flow-through package.
For this design example, a single TPD4S012 is used to protect all pins of a micro/mini USB connector.
Given the USB application, the following parameters are known.
DESIGN PARAMETER | VALUE |
---|---|
Signal range on D+, D–, and ID | 0 V to 5 V |
Signal range on VBUS | 0 V to 5 V |
Operating Frequency | 240 MHz |
To begin the design process, some parameters must be decided upon; the designer needs to know the following:
The TPD4S012 has 3 pins which support 0 to 5.5 V signals, these are suited for the D+, D–, and ID pins. The VBUS pin is suitable for the VBUS line, and has the benefit of being tolerant of voltages up to 16 V
The 0.8 pF (Typ) of the TPD4S012 support data rates in excess of 480 Mbps.
This family of devices are passive ESD protection devices and there is no need to power them. Care should be taken to not violate the maximum voltage specification to ensure that the device functions properly. The VBUS TVS diode can tolerate up to a 15 V signal. The D+, D–, and ID pins tolerate up to a 5.5 V signal.
This application is typical of a mobile USB platform with an ID pin in addition to the D+, D–, and VBUS pins.
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These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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