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NEW PRODUCT
DPS1035
24V/3.5A 1-CH POWER SWITCH W/ REVERSE-VOLTAGE PROTECTION
Description
The DPS1035 is part of a family of power switches optimized for the USB Type-CTM and other hot-swap applications. Through the analog interface, exception status is reported and functions like voltage limiting and output voltage ramp-up rate can be programmed.
This device is designed to operate between 4.5V and 24V. Its built-in fault-handling mechanism includes reverse voltage and current blocking, input over-voltage protection, and thermal shutdown. In addition, the ramp-up time of the output voltage can be adjusted to minimize in-rush current and to ensure system stability. Before any exception condition is notified via the low-active FAULTB signal, deglitch of 7ms is applied to prevent false triggering.
Pin Assignments
(Top View)
IN 1 IN 2 IN 3 EN 4 NC 5 GND 6
18 SRC
17 OUT 16 OUT 15 OUT 14 VLIM 13 NC 12 DV/DT
11 NC 10 FAULTB 9 DISC2 8 DISC1 7 VREG
The DPS1035 is housed in the low-profile and space-saving VQFN4040-17 package which is manufactured with environmentally friendly material.
V-QFN4040-17
Features
Wide Operating Voltage Range: 4.5V to 24V 1-Channel Power Switch with Built-In Fault Detection and
Recovery Mechanisms like Input Under-Voltage Lockout, Reverse-Voltage & Current Blocking, Thermal Shutdown and Input Over-Voltage Protection RDS(ON) of Embedded Power MOSFET at 30mΩ Adjustable DV/DT Control at Start-Up Manual Discharge ON/OFF Control for IN and OUT Ports Fault Reporting (FAULTB) with Blanking Time at 7ms Typical Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Notebook, Desktop & AIO PCs; Servers and Tablets Docking Stations, Universal & Multimedia Hubs FPTVs, PC Monitors Set-Top-Boxes, Residential Gateways, Storage Devices
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
DPS1035
Document number: DS38925 Rev. 6 - 2
1 of 11 www.diodes.com
August 2018
© Diodes Incorporated
NEW PRODUCT
Typical Application Circuit
VSRC 18
VIN
CIN 10μF
ON OFF
1 IN
SRC
OUT 17
2 IN
OUT 16
3 IN
OUT 15
VEN 4 EN DPS1035 VLIM 14
5 NC
NC 13
6 GND
DV/DT 12
NC 11
FAULTB 10 DISC2 9 VDISC2 DISC1 8 VDISC1
VREG 7
CVREG 0.1μF
3.3V
CFLT 0.1μF
R3 CDV/DT 10kΩ 6.8nF
RVLIM 240kΩ
DPS1035
VOUT COUT 10μF
Pin Descriptions
Pin Number 1, 2, 3 4
5, 11, 13 6 7 8 9
10
12 14 15, 16, 17 18 (Exposed Pad)
Pin Name IN EN NC
GND VREG DISC1 DISC2
FAULTB
DV/DT VLIM OUT
SRC
Type P I —
GND I/O
I I
O
I/O I/O O
I/O
Function
Power Supply and Input Port. Enable. ‘0’ = device OFF; ‘1’ = device ON. This pin must not be left floating.
No Connection. All NC pins must be left floating.
Device Ground Voltage Regulator. A 0.1μF capacitor is recommended between this pin and ground. IN Port Discharge Control. ’1’ = port voltage to be discharged; ‘0’ = disabled. OUT Port Discharge Control. ’1’ = port voltage to be discharged; ‘0’ = disabled. Fault Status Indicator. An external pull-up resistor is required. This active-low pin shall be tied to GND when not used. Ramp-up Control. A capacitor between this pin and GND sets the ramp-up rate.
Voltage Limit Setting. A resistor between this pin and GND sets the over-voltage limit of the IN port.
Output Port.
Common Source. The exposed pad of the V-QFN4040-17 package must not be connected to any signal.
DPS1035
Document number: DS38925 Rev. 6 - 2
2 of 11 www.diodes.com
August 2018
© Diodes Incorporated
NEW PRODUCT
Functional Block Diagram
1,2,3 IN
6 GND
DISC1 8
R
Discharge Control
Internal Regulator
4 EN
Power Switch
Driver
UVLO, OVP and DV/DT Programming Interface
7 12 14
DPS1035
Discharge Control
OTP
15,16,17
OUT
R DISC2
9
FAULTB 10
VLIM DV/DT
VREG
Absolute Maximum Ratings (@ TA = +25°C, unless otherwise specified.) (Note 4)
Symbol VIN, VOUT
VI/O
IOUT TJ TL TST
ESD
Parameter
Voltage Range of IN and OUT Pins Voltage Range of Others (EN, VREG, DISC1, DISC2, FAULTB, DV/DT and VLIM Pin) Output Load Current Range Operating Junction Temperature Lead Temperature Storage Temperature Human Body Model (HBM), JESD22-A114 Charge Device Model (CDM)
Rating -0.3 to 30
-0.3 to 6
5 -40 to +125
+260 -65 to +150
2 0.5
Unit V
V
A °C °C °C
kV
Note:
4. These are stress ratings only. Operation outside the absolute maximum ratings may cause device failure. Operation at the absolute maximum rating for extended periods may reduce device reliability.
Thermal Characteristics (@ TA = +25°C, unl.