HFC0310
Programmable Fixed-Frequency
Flyback Controller
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The HFC0310 is a flyback controller with
programmable fixed-frequency operation.
The controller uses peak current mode to
provide excellent transient response and ease
loop compensation. When the output power falls
below a given level, the controller enters burst
mode to lower the stand-by power consumption.
An external capacitor connected between the
FSET pin and GND programs the HFC0310
switching frequency. Otherwise, the HFC0310
uses a frequency shaping function that greatly
reduces the noise level, and reduces the cost of
the EMI filter.
The HFC0310 provides various protections,
such as thermal shutdown, VCC under-voltage
lockout, over-load protection, over-voltage
protection, and short-circuit protection.
The HFC0310 is available in a SOIC8 package.
Programmable switching frequency up to
600kHz
Frequency shaping
Current-mode operation
Very low start-up current
Very low standby power consumption via
active-burst mode
Internal leading-edge blanking
Built-in soft-start function
Internal slope compensation
External protection with recovery hysteresis
on PRO pin
Over-temperature protection
VCC under-voltage lockout with hysteresis
Over-voltage protection on VCC
Time-based over-load protection
Short-circuit protection
APPLICATIONS
Power Meters
Switching Mode Power Supplies
AC/DC Adapters, Switching Chargers
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
HFC0310 Rev. 1.03
www.MonolithicPower.com
9/27/2018
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© 2018 MPS. All Rights Reserved.
1
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
TYPICAL APPLICATION
HFC0310 Rev. 1.03
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9/27/2018
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2
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
ORDERING INFORMATION
Part Number*
HFC0310GS
Package
SOIC8
Top Marking
See below
* For Tape & Reel, add suffix –Z (e.g. HFC0310GS–Z);
TOP MARKING
MPS: MPS prefix
Y: year code
WW: week code
HFC0310: part number
LLLLLLLL: lot number
PACKAGE REFERENCE
HFC0310 Rev. 1.03
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HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
ABSOLUTE MAXIMUM RATINGS (1)
Vcc, Drv to GND ........................... –0.3V to 30 V
All Other Pins to GND ..................... –0.3V to 7 V
Continuous Power Dissipation (TA = +25°C) (2)
SOIC8.......................................................... 1.3W
Junction Temperature ............................... 150°C
Lead Temperature .................................... 260°C
Storage Temperature ................-60°C to +150°C
ESD Capability Human Body Model .......... 2.0kV
ESD Capability Machine Model .................. 200V
Recommended Operation Conditions (3)
VCC to GND ....................................... 11V to 20V
Thermal Resistance (4)
θJA
θJC
SOIC8...................................... 96 ....... 45 ... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-toambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its operating
conditions.
4) Measured on JESD51-7, 4-layer PCB.
HFC0310 Rev. 1.03
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9/27/2018
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4
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
ELECTRICAL CHARACTERISTICS
VCC = 12V, TJ = -40°C to 105°C, min and max values are guaranteed by characterization, typical
values are tested under 25°C, unless otherwise noted.
Parameter
Driving Signal (Pin Drv)
Sourcing Resistor
Sinking Resistor
Supply Voltage Management (Pin Vcc)
VCC Upper Turn-On/Off Level
VCC, Lower Turn-On/Off Level
Start-Up Current
VCC OVP Level
VCC Protection-Enabled Recharge Level
Internal IC Consumption, Protection
Phase
Feedback Management (Pin FB)
Internal Pull-Up Resistor
Internal Pull-Up Voltage
FB to Current-Set–Point Division Ratio
Internal Soft-Start Time
Falling FB Level Where the Regulator
Enters Burst Mode
Rising FB Level where the Regulator
Exits Burst Mode
Over-Load Set Point
Over-Load Delay Time
Timing Capacitor(FSET)
Maximum Voltage on the FSET
Capacitor
Source Current
FSET Capacitor Discharge Time (Active
at drive turn on)
Frequency Spectrum Shaping range, in
percentage of Fs
Current Sampling Management (CS)
Leading-Edge Blanking for Current
Sensor
Leading-Edge Blanking for SCP
Maximum Current Set-Point
Short-Circuit–Protection Set Point
Internal-Slope–Compensation Ramp
Protection Management (PRO)
Protection Voltage
Protection Hysteresis
Thermal Shutdown
Thermal shutdown threshold (5)
Thermal shutdown recovery hysteresis (5)
Symbol
Min
Typ
Max
Unit
RH
RL
17
9
25
13
34
17
Ω
Ω
VCCH
VCCL
10.8
8.5
12
9.5
13.2
10.5
V
V
12
20
μA
23
6.4
25
7.0
V
V
8
12
μA
14.5
4.55
3.5
3
17.0
4.85
4
kΩ
V
IST
Conditions
VCC=VCCH0.5V,
Before
start up
VOVP
VCCR
IPro
21
5.8
VCC =6.0V
RFB
VUP
IDIV
tSS
12.5
4.25
3
VBURL
0.43
0.5
0.57
V
VBURH
0.66
0.73
0.80
V
3.5
3.75
82
4
V
ms
VFSETmax
0.82
0.87
0.92
V
IFSET
40
50
60
μA
VOLP
tDelay
Fs=100kHz
ms
tDISCH
500
ns
RShaping
±3.5
%
tLEB1
180
280
400
ns
tLEB2
VCS
VSCP
SRamp
150
0.90
1.60
27
250
0.97
1.72
42
370
1.03
1.84
57
ns
V
V
mV/μs
3.1
3.3
0.2
3.5
V
V
VPRO
VHY
fS=100kHz
150
40
°C
°C
Notes:
5)
This parameter is guaranteed by design.
HFC0310 Rev. 1.03
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9/27/2018
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5
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
PIN FUNCTIONS
Package
Pin #
Name
1
FSET
2
VCC
3
4
5
6
7
NC
Drv
CS
PRO
GND
8
FB
Description
Switching Frequency Set. Connect a capacitor to GND to set the switching frequency up to
600kHz.
IC Power Supply.. Connect to a 47μF bulky capacitor and a 0.1μF ceramic capacitor for most
applications.
Not Connected.
Drive Signal Output.
Primary Current Sense.
Pull up PRO to shut down the IC with hysteresis.
Ground.
Feedback. The output voltage from the external compensation circuit is fed into this pin. This
pin and the current sense signal from Source determines the PWM duty cycle. Burst mode
operation and Over Load Protection are also detected on it.
HFC0310 Rev. 1.03
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9/27/2018
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6
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
TYPICAL CHARACTERISTICS
12.2
12.0
11.8
11.6
11.4
11.2
11.0
-50 -30 -10 10 30 50 70 90 110 130
9.4
9.2
9.0
8.8
8.6
8.4
FB Decreasing Level at
which the Regulator enter
the Burst Mode vs.
0.60Temperature
PIN FB TO CURRENT SET
POINT DIVISION RATIO
FB Increasing Level at
which the Regulator leave
the Burst Mode vs.
Temperature
0.80
0.75
0.70
0.65
0.60
-50 -30 -10 10 30 50 70 90 110130
0.58
0.56
3.40
0.54
3.35
0.52
0.50
3.30
0.48
3.25
0.46
3.20
0.44
3.15
0.42
0.40
-50 -30 -10 10 30 50 70 90 110 130
3.10
-50 -30 -10 10 30 50 70 90 110130
5.9
-50 -30 -10 10 30 50 70 90 110130
Over Load Set Point vs.
Temperature
Over Load Delay Time vs.
Temperature
3.82
OVER LOAD SET POINT (V)
VCC RE-CHARGE LEVEL AT WHICH
THE PROTECTIONS OCCURS (V)
FB INCREASING LEVEL AT WHICH
THE REGULATOR LEAVE
THE BURST MODE (V)
6.0
23.0
Pin FB to Current Set
point Division Ratio vs.
Temperature
3.45
6.1
23.5
22.0
-50 -30 -10 10 30 50 70 90 110 130
6.6
6.2
24.0
22.5
3.50
6.3
24.5
8.0
-50 -30 -10 10 30 50 70 90 110130
6.7
6.4
25.0
8.2
VCC Re-Charge Level at
which the protections
occurs vs.Temperature
6.5
25.5
9.6
VCC OVP LEVEL (V)
12.4
26.0
9.8
FB DECREASING LEVEL AT WHICH
THE REGULATOR ENTER
THE BURST MODE (V)
12.6
VCC OVP Level vs.
Temperature
3.80
3.78
3.76
3.74
3.72
3.70
-50 -30 -10 10 30 50 70 90 110130
OVER LOAD DELAY TIME (mS)
12.8
VCC Lower Level at which
the IC switch off vs.
Temperature
10.0
VCC LOWER LEVEL AT WHICH
THE IC SWITCH OFF (V)
VCC UPPER LEVEL AT WHICH
THE IC SWITCH ON (V)
VCC Upper Level at which
the IC switch on vs.
Temperature
13.0
83.0
82.8
82.6
82.4
82.2
82.0
81.8
81.6
81.4
81.2
81.0
-50 -30 -10 10 30 50 70 90 110 130
HFC0310 Rev. 1.03
www.MonolithicPower.com
9/27/2018
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7
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
TYPICAL CHARACTERISTICS (continued)
Maximum Current Set-point
vs. Temperature
1.70
0.99
1.68
0.96
0.94
0.92
0.90
0.88
0.86
0.84
SHORT CIRCUIT PROTECTION
SET POINT (V)
1.00
0.98
MAXIMUM CURRENT
SET-POINT (V)
1.00
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.82
0.91
0.80
-50 -30 -10 10 30 50 70 90 110130
0.90
-50 -30 -10 10 30 50 70 90 110130
39.0
Internal Slope
Compensation Ramp
vs. Temperature Chart
38.5
38.0
37.5
37.0
36.5
36.0
35.5
-50 -30 -10 10 30 50 70 90 110130
Short Circuit Protection
Set Point vs.
Temperature Chart
1.66
1.64
1.62
1.60
1.58
1.56
1.54
1.52
1.50
-50 -30 -10 10 30 50 70 90 110130
Protection Voltage
vs. Temperature
3.40
PROTECTIONVOLTAGE (V)
MAXIMUM VOLTAGE
ON FSET CAPACITOR (V)
Maximum Voltage
On FSET Capacitor vs.
Temperature
3.35
3.30
3.25
3.20
3.15
3.10
-50 -30 -10 10 30 50 70 90 110130
HFC0310 Rev. 1.03
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9/27/2018
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8
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=230VAC, VOUT1=12V/0.8A, VOUT2=8V/0.2A, VOUT3=8V/0.05A, TA=+25°C, unless otherwise noted.
Efficiency
EMI
Output Voltage Ripple
Full Load
90
80
115VAC
80
230VAC
SGL
EN55022Q
1 PK
MAXH
60
2 AV
MAXH
50
EN55022A
TDS
VOUT1
20mV/div.
40
50
VOUT2
100mV/div.
30
40
20
30
10
6DB
20
VOUT3
50mV/div.
0
10
0
10 MHz
70
70
60
1 MHz
-10
-20
0
0.2
0.4
0.6
0.8
1 1.1
150kHz
30MHz
Output Voltage Ripple
Stress
Input Power Startup
No Load
VIN = 420VAC, Full Load
Full Load
VOUT1
50mV/div.
VOUT1
5V/div.
VIN
100V/div.
VOUT2
10mV/div.
VDS
200V/div.
VOUT3
10mV/div.
VOUT2
5V/div.
VOUT3
5V/div.
Input Power Startup
Input Power Shutdown
Input Power Shutdown
No Load
Full Load
No Load
VOUT1
5V/div.
VIN
100V/div.
VOUT1
5V/div.
VIN
100V/div.
VOUT1
5V/div.
VIN
100V/div.
VOUT2
5V/div.
VOUT2
5V/div.
VOUT2
5V/div.
VOUT3
5V/div.
VOUT3
5V/div.
VOUT3
5V/div.
HFC0310 Rev. 1.03
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9/27/2018
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HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN=230VAC, VOUT1=12V/0.8A, VOUT2=8V/0.2A, VOUT3=8V/0.05A, TA=+25°C, unless otherwise noted.
SCP Entry
SCP Recovery
SCP Startup
Full Load
Full Load
Full Load
VDS
100V/div.
VDS
100V/div.
VDS
100V/div.
VCS
500mV/div.
VCC
10V/div.
VFB
2V/div.
VCS
500mV/div.
VCC
10V/div.
VFB
2V/div.
VCS
500mV/div.
VCC
10V/div.
VFB
2V/div.
OVP Entry
OVP Recovery
OVP Startup
Full Load
Full Load
Full Load
VDS
100V/div.
VDS
100V/div.
VDS
100V/div.
VOUT1
10V/div.
VFB
2V/div.
VCC
10V/div.
VOUT1
10V/div.
VFB
2V/div.
VCC
10V/div.
VOUT1
10V/div.
VFB
2V/div.
VCC
10V/div.
OCP Protection
Pro Protection
Full Load
VDS
100V/div.
VIN=85V, 160V Protection,Full Load
VPRO
100V/div.
VCC
10V/div.
VFB
2V/div.
VDS
1V/div.
HFC0310 Rev. 1.03
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9/27/2018
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HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
BLOCK DIAGRAM
Vcc
Power
Management
Extra
Protection
PRO
Driving Signal
Management
Drv
OVP
FSET
Frequency
Control
OTP
OLP
FB
Fault
Management
Burst Mode
Control
NC
SCP
GND
Peak Current
Compression
Current
Comparator
CS
Figure 1: Functional Block Diagram
HFC0310 Rev. 1.03
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9/27/2018
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11
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
OPERATION
The HFC0310 incorporates all the necessary
features to build a reliable switch-mode power
supply. Its high level of integration requires very
few external components. It has burst-mode
operation to minimize the stand-by power
consumption at light load. Protection features—such
as auto-recovery for over-load protection (OLP),
short-circuit
protection
(SCP),
over-voltage
protection (OVP), or thermal shutdown (TSD) for
over-temperature protection (OTP)—contribute to a
safer converter design without increasing circuit
complexity.
PWM Operation
The HFC0310 is a fully integrated converter with
adjustable-frequency peak-current-mode control
PWM switching regulators. The output voltage is
measured at FB through a resistive voltage divider,
amplifier, and optocoupler. The voltage at the FB
pin is compared to the internally measured switch
current to control the output voltage. The
integrated MOSFET turns on at the beginning of
each clock cycle. The current in the inductor
increases until it reaches the value set by the FB
voltage, and then the integrated MOSFET turns off.
Start-Up and VCC UVLO
Figure 2: VCC UVLO
The lower threshold of VCC under-voltage lock-out
(UVLO) decreases from VCCL to VCCR when fault
conditions occur, such as OLP, OVP, and OTP.
Soft-Start
To reduce stress on the primary MOSFET and the
secondary diode during start-up and to smoothly
establish the output voltage, the HFC0310 has an
internal soft-start circuit that gradually increases
the primary current sense threshold, which
determines the MOSFET peak current during
start-up. The pulse-width of the power switching
device progressively increases to establish
optimal operating conditions until the feedback
control loop takes charge.
During start-up, the IC consumption is IST, and the
current supplied through the start-up resistor
charges the VCC capacitor.
The IC starts switching and the operation current
increases when VCC reaches VCCH. At this point,
the transformer’s auxiliary winding powers the IC.
When VCC falls below VCCL, the regulator stops
switching and the current through the start up
resistor charges the VCC capacitor again.
Soft Start
VCS
Figure 3: Soft Start
HFC0310 Rev. 1.03
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12
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
Switching Frequency
The capacitor between the FSET pin and GND
sets the switching frequency of the HFC0310.
Estimate the oscillator frequency as per the
equation below:
1
fS =
Hz
and disables the switching pulse of the MOSFET.
Hence switching loss at no load or light load
conditions is greatly reduced.
Figure 4 shows the signals generated by burstmode operation.
tDISCH +C× VFSETmax
IFSET
Over Voltage Protection
Monitoring the VCC pin with about 20µs delay time
allows the HFC0310 to enter OVP during an overvoltage condition; when VCC goes above VOVP.
HFC0310 will resume operation after the fault
disappears.
Over-Current Protection
The HFC0310 continuously monitors the FB pin.
When FB pulls up to VOLP, if after a 8192 switching
cycle delay the fault signal is still present, the
HFC0310 shuts down as soon as the power
supply undergoes an overload. When the fault
disappears, the power supply resumes operation.
Short-Circuit Protection
By monitoring the CS pin, the HFC0310 shuts
down when the voltage rises higher than VSCP, to
indicate a short circuit. The HFC0310 enters a
safe low-power mode that prevents any lethal
thermal or stress damage. As soon as the fault
disappears, the power supply resumes operation.
Thermal Shutdown
When the temperature of the IC exceeds thermal
shutdown threshold, the OTP is activated and it
will resume operation when junction temperature
drops to thermal shutdown recovery point.
Burst Operation
To minimize stand-by power consumption, the
HFC0310 implements burst mode at no load or
light load. As the load decreases, the FB voltage
decreases. The IC stops switching when the FB
voltage drops below the lower threshold, VBRUL.
Then the output voltage drops at a rate dependent
on the load. This causes the FB voltage to rise
again due to the negative feedback control loop.
Once the FB voltage exceeds the upper threshold,
VBRUH, the switching pulse resumes. The FB
voltage then decreases and the whole process
repeats. Burst-mode operation alternately enables
Figure 4: Burst-Mode Operation
PRO Pin
The PRO pin provides extra protection against
abnormal conditions. Use the PRO pin for input
OVP and/or other protections. If the PRO pin
voltage exceeds VPRO, the IC shuts down. As soon
as the fault disappears, the power supply resumes
operation.
Leading-Edge Blanking (LEB)
In normal operation, a resistor is placed between
the MOSFET Source and Ground to senses the
primary peak current. The FB voltage sets the
turn-off threshold of the MOSFET, VSENSE=VFB/ IDIV.
HFC0310 turns off the MOSFET when the sensing
resistor voltage rises to VSENSE.
During start-up and over-load condition, the
maximum primary peak current threshold is
internally limited to Vcs to avoid excessive output
power and lower the switch voltage stress.
HFC0310 Rev. 1.03
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9/27/2018
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13
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
In order to avoid turning off the MOSFET by mistriggered spikes shortly after the switch turns on,
the IC implements a leading-edge blanking period.
During blanking time, any trigger signal on the
source pin is blocked. Figure 5 shows the primarycurrent–sense waveform and the leading-edge
blanking.
Figure 5: Leading-Edge Blanking
Design Example
The following is a design example using the
application guidelines for the given specifications:
VIN
VOUT1
VOUT2
VOUT3
fSW
85V to 420V
12V
8V
8V
100kHz
The detailed application schematic is shown in
Figure 6. The typical performance and circuit
waveforms have been shown in the Typical
Performance Characteristics section. For more
possible applications of this device, please refer to
the related Evaluation Board datasheets.
HFC0310 Rev. 1.03
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9/27/2018
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14
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
TYPICAL APPLICATION CIRCUITS
R26
L
L
85Vac~420Vac Input
CX1
RV1
TVR14471KS42Y
D1
1N4007
D2
1N4007
R6
2.2M/1206
C1
R2
1M/1206 LX1
C2
R3
7448640415/10mH
1M/1206
D3
1N4007
R4
1M/1206
R5
2.2M/1206
N1
C3
D5
2.2nF
R9
R10 SMAJ190A
374k/1206374k/1206
R7
2.2M/1206
R8
2.2M/1206
N4
D6
FR107
D7
1N4148
R18
10k
R22
510k/1206
Q1
FQP2N90
D8
MUR160
R23
510k/1206
R13
5.1M/1206
C4
22pF
6
C5
1nF
7
R14
100k/1206
R15
100k/1206
C6
1nF
CS
DRV
PRO
NC
GND
VCC
8 FB
HFC0310
FSET
4
R28
NS
C17
CY1
R29
1k
2.2nF
R16 1k
U2
R19
3.3/1%/1206
3
R24
R20 510k/1206
2.2/1%/1206
R32
38.3k/1%
R30
2k
R25
2.2/1206
U1
5
B1100/100V/1A
C16
GND2
R17
51
R12
10M/1206
R27
NS
C15
VOUT3: 8V/50mA
D11
N3
GND1
VOUT2: 8V/0.2A
B1100/100V/1A
C14
N2
2
R11
10M/1206
C13
C12
D10
R21
510k/1206
D4
1N4007
VOUT1: 12V/0.8A
D9
MURS320/200V/3A
C11
N5
L
RT1
L1
T1
R1
1M/1206
N
C10
10/1206 2.2nF/250V
PC817A
R31
C18
20k
10nF
2
1
C8
C9
U3
TL431K/2.5V
C7
560pF
R33
10k/1%
Figure 6: Typical Application Schematic
HFC0310 Rev. 1.03
www.MonolithicPower.com
9/27/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
15
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
FLOW CHART
HFC0310 Rev. 1.03
www.MonolithicPower.com
9/27/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
16
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
SIGNAL EVOLUTION IN THE PRESENCE OF FAULTS
HFC0310 Rev. 1.03
www.MonolithicPower.com
9/27/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
17
HFC0310 – PROGRAMMABLE FIXED-FREQUENCY FLYBACK CONTROLLER
PACKAGE INFORMATION
SOIC8
0.189(4.80)
0.197(5.00)
8
0.050(1.27)
0.024(0.61)
5
0.063(1.60)
0.150(3.80)
0.157(4.00)
PIN 1 ID
1
0.228(5.80)
0.244(6.20)
0.213(5.40)
4
TOP VIEW
RECOMMENDED LAND PATTERN
0.053(1.35)
0.069(1.75)
SEATING PLANE
0.004(0.10)
0.010(0.25)
0.013(0.33)
0.020(0.51)
0.0075(0.19)
0.0098(0.25)
SEE DETAIL "A"
0.050(1.27)
BSC
SIDE VIEW
FRONT VIEW
0.010(0.25)
x 45o
0.020(0.50)
GAUGE PLANE
0.010(0.25) BSC
0o-8o
0.016(0.41)
0.050(1.27)
DETAIL "A"
NOTE:
1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN
BRACKET IS IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS.
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH
OR PROTRUSIONS.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING
SHALL BE 0.004" INCHES MAX.
5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION AA.
6) DRAWING IS NOT TO SCALE.
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume
any legal responsibility for any said applications.
HFC0310 Rev. 1.03
www.MonolithicPower.com
9/27/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
18
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