NX5P1000
Logic controlled high-side power switch
Rev. 2 — 14 January 2014
Product data sheet
1. General description
The NX5P1000 is an advanced power switch and ESD- protection device for USB OTG
applications. The device includes under voltage and over voltage lockout, over-current,
over-temperature, reverse bias and in-rush current protection circuits. These circuits are
designed to isolate a VBUS OTG voltage source automatically from a VBUS interface pin
when a fault condition occurs. The device features two power switch terminals, one input
(VINT) and one output (VBUS). It has a current limit input (ILIM) for defining the
over-current and in-rush current limit. A voltage detect output (VDET) is used to determine
when VINT is in the correct voltage range. An open-drain fault output (FAULT) indicates
when a fault condition has occurred and an enable input (EN) controls the state of the
switch. When EN is set LOW the device enters a low-power mode, disabling all protection
circuits except the undervoltage lockout. The low-power mode can be entered at anytime
unless the over temperature protection circuit has been triggered.
Designed for operation from 3 V to 5.5 V, it is used in power domain isolation applications
to protect from out of range operation. The enable input includes integrated logic level
translation making the device compatible with lower voltage processors and controllers.
2. Features and benefits
Wide supply voltage range from 3 V to 5.5 V
30 V tolerant on VBUS
I
SW
maximum 1 A continuous current
Very low ON resistance: 100 m (maximum) at a supply voltage of 4.0 V
Low-power mode (ground current 20
A
typical)
1.8 V control logic
Soft start turn-on slew rate
Protection circuitry
Over-temperature protection
Over-current protection with low current output mode
Reverse bias current/Back drive protection
Overvoltage lockout
Undervoltage lockout
Analog voltage limited VBUS monitor path
ESD protection:
HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 2 kV
IEC61000-4-2 contact discharge exceeds 8 kV for pins VBUS, D, D+ and ID
Specified from
40 C
to +85
C
NXP Semiconductors
NX5P1000
Logic controlled high-side power switch
3. Applications
USB OTG applications
4. Ordering information
Table 1.
Ordering information
Temperature range Name
NX5P1000UK
40 C
to +85
C
Description
Version
NX5P1000
Type number Package
WLCSP12 wafer level chip-scale package; 12 bumps;
1.36
1.66
0.51 mm, 0.4 mm pitch (Backside Coating
included)
5. Marking
Table 2.
Marking codes
Marking code
NX5P1
Type number
NX5P1000UK
6. Functional diagram
Fig 1.
Logic symbol
NX5P1000
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 2 — 14 January 2014
2 of 19
NXP Semiconductors
NX5P1000
Logic controlled high-side power switch
10 mA
CURRENT SOURCE
REVERSE-CURRENT
PROTECTION
OVER-CURRENT
PROTECTION
VBUS
UVLO/OVLO
PROT
VDET
D-
D+
ID
125 °C
PROT
aaa-007136
ILIM
VINT
CONTROL
EN
FAULT
Fig 2.
Logic diagram (simplified schematic)
7. Pinning information
7.1 Pinning
Fig 3.
Pin configuration WLCSP12 package
Fig 4.
Ball mapping for WLCSP12
7.2 Pin description
Table 3.
Symbol
VINT
VBUS
EN
ILIM
NX5P1000
Pin description
Pin
A1, B1
A3, B3
C1
D1
Description
internal circuitry voltage I
external connector voltage O
enable input (active HIGH) I
current limiter I/O
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 2 — 14 January 2014
3 of 19
NXP Semiconductors
NX5P1000
Logic controlled high-side power switch
Table 3.
Symbol
VDET
FAULT
GND
D-
D+
ID
Pin description
…continued
Pin
A2
B2
C2
D2
D3
C3
Description
VBUS voltage level indicator O
fault condition indicator (open-drain; active LOW)
ground (0 V)
ESD-protection I/O
ESD-protection I/O
ESD-protection I/O
8. Functional description
Table 4.
EN
X
X
X
H
H
L
H
H
H
H
H
[1]
Function table
[1]
VBUS
Z
< 30 V
Z
Z
Z
Z
VBUS = VINT
0 V to VINT
0 V to VINT
VINT + 30 mV < VBUS < VINT +
0.45 V (> 4 ms)
VBUS > VINT + 0.45 V
FAULT Operation mode
L
Z
L
L
L
Z
Z
L
L
L
L
no supply
disabled; switch open
undervoltage lockout; switch open
overvoltage lockout; switch open
over-temperature; switch open
disabled; switch open
enabled; switch closed; active
over-current; switch open; constant current on VBUS
when ILIM is connected to GND, VBUS is supplied with
10 mA current source
reverse bias current/back drive; switch open
reverse bias current/back drive; switch open
VINT
0V
0V
< 3.2 V
> 5.5 V
3.2 V to 5.5 V
3.2 V to 5.5 V
3.2 V to 5.5 V
3.2 V to 5.5 V
3.2 V to 5.5 V
3.2 V to 5.5 V
3.2 V to 5.5 V
H = HIGH voltage level; L = LOW voltage level, Z = high-impedance OFF-state, X = Don’t care.
Table 5.
VBUS
Function table VDET versus VBUS
[1]
VDET
Operation mode
1.5 < VDET < 5.5 V VDET detects VBUS voltage
3 V < VBUS < 30 V
[1]
See
Figure 22.
8.1
EN input
When the EN is set LOW, the N-channel MOSFET is disabled. The device enters
low-power mode disabling all protection circuits except the undervoltage lockout circuit
and setting the FAULT output high impedance. When EN is set HIGH, all protection
circuits are enabled. If an R
ILIM
current limit resistor is detected and no fault conditions
exist, the N-channel MOSFET is enabled.
8.2 Undervoltage lockout
Independent of the logic level on the EN pin, the undervoltage lockout (UVLO) circuit
disables the N-channel MOSFET. It sets the FAULT output LOW and enters low-power
mode until VINT > 3.2 V. Once VINT > 3.2 V, the state of the N-channel MOSFET controls
the EN pin. The UVLO circuit remains active in low-power mode.
NX5P1000
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 2 — 14 January 2014
4 of 19
NXP Semiconductors
NX5P1000
Logic controlled high-side power switch
8.3 Overvoltage lockout
When EN is set HIGH, the overvoltage lockout (OVLO) circuit disables the N-channel
MOSFET. If VINT > 5.75 V, the FAULT output is set LOW. The OVLO circuit is disabled in
low-power mode and does not influence the FAULT output state. If the OVLO circuit is
active, setting the EN pin LOW returns the device to low-power mode.
8.4 ILIM
The over-current protection circuit's (OCP) trigger value I
ocp
, can be set using an external
resistor R
ILIM
connected to the ILIM pin (see
Figure 6).
When EN is set HIGH and the ILIM
pin is grounded, the N-channel MOSFET is disabled. In addition, VBUS is supplied by the
10 mA current source and the FAULT output set LOW.
8.5 Over-current protection
If the current through the N-channel MOSFET exceeds I
ocp
for 20
s
or VBUS < VINT
200 mV, the over-current protection (OCP) circuit disables the N-channel MOSFET within
2
s.
It supplies VBUS from the 10 mA current source and indicates a fault condition by
setting the FAULT pin LOW. The OCP circuit is automatically reset when VINT > VBUS >
VINT
200 mV for 20
s.
The N-channel MOSFET assumes the state defined by the EN
input, the 10 mA current source is disconnected and the FAULT pin is set high impedance.
If the OCP circuit is active, setting the EN pin LOW returns the device to low-power mode.
8.6 Over-temperature protection
When EN is set HIGH and the device temperature exceeds 125 °C, the Over-temperature
protection (OTP) circuit disables the N-channel MOSFET. It indicates a fault condition by
setting the FAULT pin LOW. Any transition on the EN pin has no effect. Once the device
temperature decreases to below 115 °C, the device returns to the defined state. The OTP
circuit is disabled in low-power mode. However, if the OTP circuit is active, setting the EN
pin LOW does not return the device to low-power mode.
8.7 Reverse bias current/back drive protection
When EN is set HIGH, if (VINT + 30 mV) < VBUS < (VINT + 0.45 V) for longer than 4 ms,
or if VBUS > (VINT + 0.45 V), the reverse-bias current protection circuit (RCP) disables
the N-channel MOSFET. It indicates a fault condition by setting the FAULT pin LOW. Once
VBUS < VINT for longer than 4 ms the device returns to the defined state. If the RCP
circuit is active, setting the EN pin LOW returns the device to low-power mode.
8.8
FAULT output
The FAULT output is an open-drain output that requires an external pull-up resistor. If any
of the UVLO, OVLO, RCP, OCP or OTP circuits are activated the FAULT output is set
LOW to indicate a fault has occurred. The FAULT output returns to the high impedance
state automatically once the fault condition is removed.
8.9
VDET output
VDET is an analog output that allows a controller to monitor the voltage level on VBUS.
NX5P1000
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 2 — 14 January 2014
5 of 19
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