MAX16919 USB Protector Datasheet

MAX16919 Datasheet, PDF, Equivalent


Part Number

MAX16919

Description

500mA-3A Automotive Hi-Speed USB Protector

Manufacture

Maxim Integrated

Total Page 25 Pages
Datasheet
Download MAX16919 Datasheet


MAX16919
EVALUATION KIT AVAILABLE
Click here for production status of specific part numbers.
MAX16919
500mA–3A Automotive Hi-Speed USB Protector
with USB Host-Charger Port Detection
General Description
The MAX16919 provides high-ESD and short-circuit pro-
tection for the low-voltage internal USB data and USB
power line in automotive radio, navigation, connectivity, and
USB hub applications. The device supports both Hi-Speed
USB (480Mbps) and full-speed USB (12Mbps) opera-
tion. In addition, the device includes integrated circuitry to
enable fast-charging for consumer devices adhering to the
Hi-Speed USB host-charger port-detection protocol.
The short-circuit protection features include short-to-bat-
tery on the protected HVBUS, HVD+, and HVD- outputs,
as well as short-to-HVBUS on the protected HVD+ and
HVD- outputs. The device is capable of a short-to-battery
condition of up to +18V. Short-to-GND and overcurrent
protection are also provided on the HVBUS output to pro-
tect the internal BUS power rail from overcurrent faults.
The device features high-ESD protection to ±15kV Air
Gap method and ±8kV Contact method on all protected
HVBUS, HVD+, and HVD- outputs.
The device features two low 4.0Ω on-resistance Hi-Speed
USB switches and a current-limited low-voltage 22mΩ
BUS switch, and provides an integrated high-voltage
external power-switch controller. The BUS switch can
start up into large capacitive noncompliant USB loads.
The device also features an enable input, a fault output,
and an integrated host-charger port-detection circuit
adhering to the USB 2.0 battery charging specification.
The device is available in a 16-pin QSOP package, and
operates over -40°C to +105°C temperature range.
Features
● Two 4.0Ω (typ) RON USB 2.0 Data Switches
● Current-Limited 22mΩ (typ) BUS Switch with High-
Capacitive Load Capability
● 480Mbps or 12Mbps USB 2.0 Operation
● Short-to-Battery and Short-to-GND Protection on
Protected HVBUS Output
● Short-to-Battery and Short-to-HVBUS Protection on
Protected HVD+ and HVD- Outputs
● 20ms Fault-Blanking Timeout Period
● Integrated Overcurrent and Short-Circuit Autoretry
● Integrated USB Host-Charger Port-Detection Circuitry
● High ESD Protection (HVD+, HVD-, HVBUS)
• ±15kV Human Body Model
• ±15kV IEC 61000-4-2 Air Gap
• ±8kV IEC 61000-4-2 Contact
● 16-Pin (3.90mm x 4.94mm) QSOP Package
● -40°C to +105°C Operating Temperature Range
● AEC-Q100 Qualified
Applications
● Automotive USB Protection
Ordering Information appears at end of data sheet.
Typical Operating Circuit
COMMON-MODE
CHOKE PLACEMENT
D-
HVD-
CONTROL
AND
DIAGNOSTICS
IN
FAULT
CHEN
EN
ISET
D-
0.1µF
100kΩ
RISET
1k
10µF
3.3V USB
I/O VOLTAGE
V I/O
LOW-VOLTAGE
µC OR ASIC
WITH INTEGRATED
USB TRANSCEIVER
D-
USB D+
CONNECTOR
VBUS
GND
OPTIONAL
FERRITE BEAD
0.1µF
1Ω
10µF
100nF
HVD+
D+
S_DMOS
BUS
G_DMOS
HVBUS
FET CHARGE
PUMP
GND
MAX16919D
+5V MAIN
SYSTEM POWER
0.1µF
100µF
D+
19-5762; Rev 2; 2/12

MAX16919
MAX16919
500mA–3A Automotive Hi-Speed USB Protector
with USB Host-Charger Port Detection
Absolute Maximum Ratings
IN, BUS, ISET, S_DMOS, D+, D- to GND...............-0.3V to +6V
D+, D- to IN.........................................................................+0.3V
EN, EN, FAULT, CHEN to GND...............................-0.3V to +6V
HVD+, HVD-, HVBUS to GND...............................-0.3V to +18V
G_DMOS to GND...................................................-0.3V to +16V
Continuous Power Dissipation (TA = +70°C)
QSOP (derate 9.5mW/°C above +70°C)......................761mW
Operating Temperature Range.......................... -40°C to +105°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)........................................+260°C
Package Thermal Characteristics (Note 1)
QSOP
Junction-to-Ambient Thermal Resistance (θJA).........105°C/W
Junction-to-Case Thermal Resistance (θJC)................37°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(VBUS = 5.0V, VIN = 3.3V, TJ = TA = -40°C to +105°C, RL= ∞, unless otherwise noted. Typical values are at VEN = 0V or VEN = 3.3V
and TA = +25°C, unless otherwise noted.)
PARAMETER
POWER SUPPLY
BUS Power-Supply Range
IN Power-Supply Range
IN Overvoltage Lockout
BUS Input Current
IN Input Current
CHARGE PUMP
SYMBOL
VBUS
VIN
VOVLO
IBUS
IIN
Unloaded Output Voltage
Output Impedance
Output DC Current
D+/D- ANALOG USB SWITCHES
VOCHP
ROCHP
IOCHP
Analog Signal Range
Protection Trip Threshold
Protection Response Time
Overvoltage Blanking Timeout
Period
On-Resistance
VOV_HVD
tFP_D
tB,OV_D
RON
CONDITIONS
VIN rising
Supply for internal blocks, VCHEN = 0V
VCHEN = VIN
Referenced to VBUS, internal discharge
path 2MΩ to GND
VG_DMOS - VBUS ≥ 7V
Guaranteed by RON measurement
(Note 2)
VIN = 4.0V, VHVD_ = 3.3V to 4.3V step,
RL = 15kΩ on D_, delay to VD_ < 3V
From overvoltage condition to FAULT
asserted
VBUS = 5V, IL = 40mA, 0V VD_ 3.6V
MIN TYP MAX UNITS
4.75
5.25
3.0 3.6
4.0
800
320
V
V
V
µA
µA
8.0
10.5
V
50 kΩ
20 µA
0 3.6
3.7 3.85
6
20
4.0 8
V
V
µs
ms
Ω
*The parametric values (min, typ, max limits) shown in the Electrical Characteristics table supersede values quoted elsewhere in this
data sheet.
www.maximintegrated.com
Maxim Integrated 2


Features EVALUATION KIT AVAILABLE Click here for production status of specific part num bers. MAX16919 500mA–3A Automotive Hi-Speed USB Protector with USB Host-Ch arger Port Detection General Descripti on The MAX16919 provides high-ESD and s hort-circuit protection for the low-vol tage internal USB data and USB power li ne in automotive radio, navigation, con nectivity, and USB hub applications. Th e device supports both Hi-Speed USB (48 0Mbps) and full-speed USB (12Mbps) oper ation. In addition, the device includes integrated circuitry to enable fast-ch arging for consumer devices adhering to the Hi-Speed USB host-charger port-det ection protocol. The short-circuit prot ection features include short-to-batter y on the protected HVBUS, HVD+, and HVD - outputs, as well as short-to-HVBUS on the protected HVD+ and HVD- outputs. T he device is capable of a short-to-batt ery condition of up to +18V. Short-to-G ND and overcurrent protection are also provided on the HVBUS output to protect the internal BUS power ra.
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