4.5 V to 60 V Input, 2 A, 4 A, 6 A, 10 A microBUCK DC/DC ...
SiC461, SiC462, SiC463, SiC464
Vishay Siliconix
4.5 V to 60 V Input, 2 A, 4 A, 6 A, 10 A microBUCK? DC/DC Converter
LINKS TO ADDITIONAL RESOURCES
Design Tool
Evaluation Boards
Design Tools
DESCRIPTION
The SiC46x is a family of wide input voltage, high efficiency synchronous buck regulators with integrated high side and low side power MOSFETs. Its power stage is capable of supplying high continuous current at up to 2 MHz switching frequency. This regulator produces an adjustable output voltage down to 0.8 V from 4.5 V to 60 V input rail to accommodate a variety of applications, including computing, consumer electronics, telecom, and industrial.
SiC46x's architecture allows for ultrafast transient response with minimum output capacitance and tight ripple regulation at very light load. The device enables loop stability regardless of the type of output capacitor used, including low ESR ceramic capacitors. The device also incorporates a power saving scheme that significantly increases light load efficiency. The regulator integrates a full protection feature set, including over current protection (OCP), output overvoltage protection (OVP), short circuit protection (SCP), output undervoltage protection (UVP) and over temperature protection (OTP). It also has UVLO for input rail and a user programmable soft start.
The SiC46x family is available in 2 A, 4 A, 6 A, 10 A pin compatible 5 mm by 5 mm lead (Pb)-free power enhanced MLP55-27L package.
TYPICAL APPLICATION CIRCUIT
INPUT 4.5 VDC to 60 VDC
CIN
Css
VCIN
V IN V DD V DRV MODE SS ILIMIT
PHASE SW
SiC46x
V SNS
ULTRASONIC
V FB
COMP
PGND AGND fSW
Rlimit
Rfsw
BOOT PGOOD EN
CBOOT
Rx Cy
Rcomp Ccomp
V OUT
Cx
Rup Rdown
COUT
Fig. 1 - Typical Application Circuit for SiC46x
FEATURES ? Versatile
- Single supply operation from 4.5 V to 60 V input voltage
- Adjustable output voltage down to 0.8 V - Scalable solution 2 A (SiC464), 4 A (SiC463),
6 A (SiC462), 10 A (SiC461) - Output voltage tracking and sequencing with
pre-bias start up - ? 1 % output voltage accuracy at -40 ?C to +125 ?C ? Highly efficient - 98 % peak efficiency - 4 A supply current at shutdown - 235 A operating current, not switching ? Highly configurable - Adjustable switching frequency from 100 kHz to 2 MHz - Adjustable soft start and adjustable current limit - 3 modes of operation, forced continuous conduction,
power save or ultrasonic ? Robust and reliable
- Output over voltage protection - Output under voltage / short circuit protection with auto
retry - Power good flag and over temperature protection - Supported by Vishay PowerCAD online design
simulation ? Material categorization: for definitions of compliance
please see doc?99912
APPLICATIONS ? Industrial and automation ? Home automation ? Industrial and server computing ? Networking, telecom, and base station power supplies ? Unregulated wall transformer ? Robotics ? High end hobby electronics: remote control cars, planes,
and drones ? Battery management systems ? Power tools ? Vending, ATM, and slot machines
2nd line eff - Efficiency (%)
1st line 2nd line
100 98 VIN = 48 V, VOUT = 12 V VIN= 24 V, VOUT = 12 V
10000
96
94
1000
92
90 VIN = 24 V, VOUT = 5 V
88
VIN = 48 V, VOUT = 5 V 86
100
84
82
80
10
0
1
2
3
4
5
6
IOUT - Output Current (A)
Fig. 2 - SiC462 Efficiency vs. Output Current
S23-0599-Rev. R, 07-Aug-2023
1
Document Number: 65124
For technical questions, contact: powerictechsupport@
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT doc?91000
PIN CONFIGURATION
SiC461, SiC462, SiC463, SiC464
Vishay Siliconix
20 VSNS 21 COMP 22 VFB 23 AGND 24 fSW 25 ILIM 26 VDD 27 MODE
27 MODE 26 VDD 25 ILIM 24 fSW 23 AGND 22 VFB 21 COMP 20 VSNS
VCIN 1 PGOOD 2
EN 3 BOOT 4
PHASE 5 PHASE 6
1 28 AGND
30
VIN
29 PGND
6
19 SS 18 ULTRASONIC 17 PGND 16 VDRV 15 GL
14 SW 13 SW 12 SW
SS 19 ULTRASONIC 1 8
PGND 1 7 VDRV 1 6
GL 1 5
SW 1 4 SW 1 3 SW 1 2
28 AGND
29
30 PGND
VIN
6
1 VCIN 2 PGOOD 3 EN 4 BOOT
5 PHASE 6 PHASE
PGND 11 PGND 10 PGND 9
VIN 8 VIN 7
VIN 7 VIN 8 PGND 9 PGND 10 PGND 11
Fig. 3 - SiC46x Pin Configuration
PIN DESCRIPTION
PIN NUMBER
SYMBOL
1
VCIN
2
PGOOD
3
4 5, 6 7, 8, 29 9, 10, 11, 17, 30 12, 13, 14 15
16
EN
BOOT PHASE
VIN PGND SW GL
VDRV
18
ULTRASONIC
19 20 21
22 23, 28
24 25 26 27
SS
VSNS COMP
VFB AGND fSW ILIMIT VDD MODE
DESCRIPTION
Supply voltage for internal regulators VDD and VDRV. This pin should be tied to VIN, but can also be connected to a lower supply voltage (> 5 V) to reduce losses in the internal linear regulators
Open-drain power good indicator - high impedance indicates power is good. An external pull-up resistor is required
Enable pin. Tie high/low to enable/disable the IC accordingly. This is a high voltage compatible pin, can be tied to 60 V
High side driver bootstrap voltage
Return path of high side gate driver
Power stage input voltage. Drain of high side MOSFET
Power ground
Power stage switch node
Low side MOSFET gate signal
Supply voltage for internal gate driver. When using the internal LDO as a bias power supply, VDRV is the LDO output. Connect a 4.7 F decoupling capacitor to PGND Float to disable ultrasonic mode, connect to VDD to enable. Depending on the operation mode set by the mode pin, power save mode or forced continuous mode will be enabled when the ultrasonic mode is disabled
Set the soft start ramp by connecting a capacitor to AGND. An internal current source will charge the capacitor
Power inductor signal feedback pin for system stability compensation
Output of the internal error amplifier. The feedback loop compensation network is connected from this pin to the AGND pin Feedback input for switching regulator used to program the output voltage - connect to an external resistor divider from VOUT to AGND Analog ground
Set the on-time by connecting a resistor to AGND Set the current limit by connecting a resistor to AGND Bias supply for the IC. VDD is an LDO output, connect a 1 F decoupling capacitor to AGND Set various operation modes by connecting a resistor to AGND. See specification table for details
S23-0599-Rev. R, 07-Aug-2023
2
Document Number: 65124
For technical questions, contact: powerictechsupport@
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT doc?91000
SiC461, SiC462, SiC463, SiC464
Vishay Siliconix
ORDERING INFORMATION
PART NUMBER SiC461ED-T1-GE3 SiC461EVB SiC462ED-T1-GE3 SiC462EVB SiC463ED-T1-GE3 SiC463EVB SiC464ED-T1-GE3 SiC464EVB
PACKAGE PowerPAK? MLP55-27L PowerPAK? MLP55-27L PowerPAK? MLP55-27L PowerPAK? MLP55-27L
Reference board Reference board Reference board Reference board
MARKING CODE SiC461 SiC462 SiC463 SiC464
PART MARKING INFORMATION
P/N LL F Y W W
= P/N =
= = F= Y= WW = LL =
pin 1 indicator part number code Siliconix logo ESD symbol assembly factory code year code week code lot code
ABSOLUTE MAXIMUM RATINGS (TA = 25 ?C, unless otherwise noted)
ELECTRICAL PARAMETER
CONDITIONS
VCIN, VIN EN SW / PHASE VDRV VDD SW / PHASE (AC) BOOT
Reference to PGND Reference to AGND Reference to PGND Reference to PGND Reference to AGND Reference to PGND; 100 ns
AGND to PGND All other pins Temperature
Reference to AGND
Junction temperature Storage temperature Power Dissipation
TJ TSTG
Thermal resistance from junction-to-ambient
Thermal resistance from junction-to-case
ESD Protection
Electrostatic discharge protection
Human body model, JESD22-A114 Charged device model, JESD22-A101
LIMITS -0.3 to 66 -0.3 to 60 -0.3 to 66 -0.3 to 6 -0.3 to 6 -10 to 72 -0.3 to VPHASE + VDRV -0.3 to 0.3 -0.3 to VDD + 0.3
-40 to +150 -65 to +150
12 2
2000 500
UNIT V
?C ?C/W
V
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.
S23-0599-Rev. R, 07-Aug-2023
3
Document Number: 65124
For technical questions, contact: powerictechsupport@
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT doc?91000
SiC461, SiC462, SiC463, SiC464
Vishay Siliconix
RECOMMENDED OPERATING CONDITIONS (all voltages referenced to GND = 0 V)
PARAMETER
MIN.
TYP.
MAX.
UNIT
Input voltage (VIN) Control input voltage (VCIN) (1) Enable (EN) Bias supply (VDD) Drive supply voltage (VDRV) Output voltage (VOUT) Temperature
4.5
-
60
4.5
-
60
0
-
60
V
4.75
5
5.25
4.75
5.3
5.55
0.8
-
0.92 x VIN
Recommended ambient temperature Operating junction temperature
-40 to +105 ?C
-40 to +125
Note (1) For input voltages below 5 V, provide a separate supply to VCIN of at least 5 V to prevent the internal VDD rail UVLO from triggering
ELECTRICAL SPECIFICATIONS (VIN = VCIN = 48 V, VEN = 5 V, TJ = -40 ?C to +125 ?C, unless otherwise stated)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN. TYP. MAX. UNIT
Power Supplies
VDD supply
VDD dropout VDD UVLO threshold, rising VDD UVLO hysteresis Maximum VDD current
VDRV supply
VDRV dropout Maximum VDRV current VDRV UVLO threshold, rising VDRV UVLO hysteresis Input current Shutdown current Controller and Timing
VDD
VDD_DROPOUT VDD_UVLO
VDD_UVLO_HYST IDD
VDRV
VDRV_DROPOUT VDRV
VDRV_UVLO VDRV_UVLO_HYST
IVCIN IVCIN_SHDN
VIN = VCIN = 6 V to 60 V VIN = VCIN = 5 V
VIN = VCIN = 5 V, IVDD = 1 mA
VIN = VCIN = 6 V to 60 V VIN = VCIN = 6 V to 60 V
VIN = VCIN = 5 V VIN = VCIN = 5 V, IVDD = 10 mA
VIN = VCIN = 6 V to 60 V
Non-switching, VFB > 0.8 V VEN = 0 V
4.75 5 5.25
V
4.7
5
-
-
70
-
mV
4 4.25 4.5 V
-
225
-
mV
3
-
-
mA
4.75 5.3 5.55
V
4.8
5
5.2
-
160
-
mV
30
-
-
mA
4 4.25 4.5 V
-
295
-
mV
-
235 325
A
-
4
8
Feedback voltage
VFB input bias current Transconductance COMP source current COMP sink current Minimum on-time tON accuracy On-time range
Frequency range
VFB
IFB gm ICOMP_SOURCE ICOMP_SINK tON_MIN. tON_ACCURACY tON_RANGE
fsw
TJ = 25 ?C TJ = -40 ?C to +125 ?C (1)
Ultrasonic mode enabled Ultrasonic mode disabled
796 800 804 mV
792 800 808
-
2
-
nA
-
0.3
-
mS
15 20
-
A
15 20
-
-
90 110 ns
-10
-
10 %
110
- 8000 ns
20
- 2000
kHz
0
- 2000
Minimum off-time Soft start current Soft start voltage
tOFF_MIN. ISS VSS
When VOUT reaches regulation
190 250 310 ns
3
5
7
A
-
1.5
-
V
S23-0599-Rev. R, 07-Aug-2023
4
Document Number: 65124
For technical questions, contact: powerictechsupport@
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT doc?91000
SiC461, SiC462, SiC463, SiC464
Vishay Siliconix
ELECTRICAL SPECIFICATIONS (VIN = VCIN = 48 V, VEN = 5 V, TJ = -40 ?C to +125 ?C, unless otherwise stated)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN. TYP. MAX. UNIT
Fault Protections
Valley current limit
Output OVP threshold Output UVP threshold Over temperature protection Power Good
IOCP
VOVP VUVP TOTP_RISING TOTP_HYST
SiC461 (10 A), RILIM = 60 k, TJ = -10 ?C to +125 ?C
10.4 13 15.6
SiC462 (6 A), RILIM = 60 k, TJ = -10 ?C to +125 ?C
6.4
8
9.6
A
SiC463 (4 A), RILIM = 40 k, TJ = -10 ?C to +125 ?C (2)
4.8
6
7.2
SiC464 (2 A), RILIM = 60 k, TJ = -10 ?C to +125 ?C
3.2
4
4.8
VFB with respect to 0.8 V reference
-
20
-
%
-
-80
-
Rising temperature Hysteresis
-
150
-
?C
-
35
-
Power good output threshold
Power good hysteresis Power good on resistance Power good delay time EN / MODE / Ultrasonic Threshold
VFB_RISING_VTH_OV VFB_FALLING_VTH_UV
VFB_HYST RON_PGOOD tDLY_PGOOD
VFB rising above 0.8 V reference VFB falling below 0.8 V reference
-
20
-
%
-
-10
-
-
50
-
mV
-
7.5 15
15 25 35 s
EN logic high level EN logic low level EN hysteresis EN pull down resistance Ultrasonic mode high Level Ultrasonic mode low level Mode pull up current
Mode 1
VEN_H VEN_L VHYST REN VULTRASONIC_H VULTRASONIC_L IMODE
Power save mode enabled, VDD, VDRV Pre-reg on
- 1.35 -
-
1.2
-
V
- 0.15 -
5
7
9 M
2
-
-
V
-
-
0.8
3.75 5 6.25 A
0
2 100
Mode 2 Mode 3 Mode 4
RMODE
Power save mode disabled, VDD, VDRV Pre-reg on
298 301 304
k
Power save mode disabled, VDRV Pre-reg off, VDD Pre-reg on, provide external VDRV
494
499
504
Power save mode enabled, VDRV Pre-reg off, VDD Pre-reg on, provide external VDRV
900
1000 1100
Notes (1) Guaranteed by design (2) Guaranteed by design for SiC463 OCP measurements
S23-0599-Rev. R, 07-Aug-2023
5
Document Number: 65124
For technical questions, contact: powerictechsupport@
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT doc?91000
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- chapter 5 solar photovoltaics
- parts list and notes for making a 10 hp 240v single phase
- 24 bit analog to digital converter adc for weigh scales
- battery guide resmed
- da10d and da30d data sheet red lion
- digital to analog converter ics
- 2 wire ethernet poe converter doorbird
- chapter 2 sampled data systems f analog devices
- data sheet ar8031 integrated 10 100 1000 mbps ethernet
- 4 5 v to 60 v input 2 a 4 a 6 a 10 a microbuck dc dc
Related searches
- sin 2 theta 3 4 5 triangle
- sqrt x 4 a 5 4
- 6 4 cubic liters to cubic inches
- walking 4 5 miles a day
- how big is a 6 2 cm mass
- 2 6 repeating as a fraction
- 4 5 grams to teaspoons
- is a women s 10 a junior size
- discover 1 2 3 4 checking 1 2 3 4 account
- discover 1 2 3 4 checking 1 2 3 4 account 1 2
- 2 6 4 12 6 18
- 4 x 6 cm to inches