Intersil ISL6843IUZ Improved industry standard single-ended current mode pwm controller Datasheet

ISL6840, ISL6841, ISL6842,
ISL6843, ISL6844, ISL6845
®
Data Sheet
August 7, 2008
Improved Industry Standard Single-Ended
Current Mode PWM Controller
The ISL6840, ISL6841, ISL6842, ISL6843, ISL6844,
ISL6845 family of adjustable frequency, low power, pulse
width modulating (PWM) current mode controllers is
designed for a wide range of power conversion applications
including boost, flyback, and isolated output configurations.
Peak current mode control effectively handles power
transients and provides inherent overcurrent protection.
This advanced BiCMOS design is pin compatible with the
industry standard 384x family of controllers and offers
significantly improved performance. Features include low
operating current, 60µA start-up current, adjustable
operating frequency to 2MHz, and high peak current drive
capability with 20ns rise and fall times.
PART NUMBER
RISING UVLO (V) MAX. DUTY CYCLE (%)
ISL6840
7.0
100
ISL6841
7.0
50
ISL6842
14.4
100
ISL6843
8.4
100
ISL6844
14.4
50
ISL6845
8.4
50
FN9124.10
Features
• 1A MOSFET Gate Driver
• 60µA Start-up Current, 100µA Maximum
• 25ns Propagation Delay Current Sense to Output
• Fast Transient Response with Peak Current Mode Control
• Adjustable Switching Frequency to 2MHz
• 20ns Rise and Fall Times with 1nF Output Load
• Trimmed Timing Capacitor Discharge Current for Accurate
Deadtime/Maximum Duty Cycle Control
• High Bandwidth Error Amplifier
• Tight Tolerance Voltage Reference Over Line, Load, and
Temperature
• Tight Tolerance Current Limit Threshold
• Pb-Free Available (RoHS Compliant)
Applications
• Telecom and Datacom Power
• Wireless Base Station Power
• File Server Power
• Industrial Power Systems
• PC Power Supplies
Pinouts
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
(8 LD SOIC, MSOP)
TOP VIEW
COMP 1
• Isolated Buck and Flyback Regulators
• Boost Regulators
8 VREF
FB 2
7 VDD
CS 3
6 OUT
RTCT 4
5 GND
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
(8 LD DFN)
TOP VIEW
COMP
1
8
VREF
FB
2
7
VDD
CS
3
6
OUT
RTCT
4
5
GND
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004, 2005, 2007, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Ordering Information
PART NUMBER
PART MARKING
TEMP RANGE
(°C)
PACKAGE
PKG. DWG. #
ISL6840IB*
ISL 6840IB
-40 to +105
8 Ld SOIC
M8.15
ISL6840IBZ* (Note)
6840 IBZ
-40 to +105
8 Ld SOIC (Pb-free)
M8.15
ISL6840IRZ-T† (Note)
40Z
-40 to +105
8 Ld 2x3 DFN (Pb-free)
L8.2x3
ISL6840IU*
6840
-40 to +105
8 Ld MSOP
M8.118
ISL6840IUZ* (Note)
6840Z
-40 to +105
8 Ld MSOP (Pb-free)
M8.118
ISL6841IB*
ISL 6841IB
-40 to +105
8 Ld SOIC
M8.15
ISL6841IBZ* (Note)
6841 IBZ
-40 to +105
8 Ld SOIC (Pb-free)
M8.15
ISL6841IRZ-T† (Note)
41Z
-40 to +105
8 Ld 2x3 DFN (Pb-free)
L8.2x3
ISL6841IU*
6841
-40 to +105
8 Ld MSOP
M8.118
ISL6841IUZ* (Note)
6841Z
-40 to +105
8 Ld MSOP (Pb-free)
M8.118
ISL6842IB*
ISL 6842IB
-40 to +105
8 Ld SOIC
M8.15
ISL6842IBZ* (Note)
6842 IBZ
-40 to +105
8 Ld SOIC (Pb-free)
M8.15
ISL6842IRZ-T† (Note)
42Z
-40 to +105
8 Ld 2x3 DFN (Pb-free)
L8.2x3
ISL6842IU*
6842
-40 to +105
8 Ld MSOP
M8.118
ISL6842IUZ* (Note)
6842Z
-40 to +105
8 Ld MSOP (Pb-free)
M8.118
ISL6843IB*
ISL 6843IB
-40 to +105
8 Ld SOIC
M8.15
ISL6843IBZ* (Note)
6843 IBZ
-40 to +105
8 Ld SOIC (Pb-free)
M8.15
ISL6843IRZ-T† (Note)
43Z
-40 to +105
8 Ld 2x3 DFN (Pb-free)
L8.2x3
ISL6843IU*
6843
-40 to +105
8 Ld MSOP
M8.118
ISL6843IUZ* (Note)
6843Z
-40 to +105
8 Ld MSOP (Pb-free)
M8.118
ISL6844IB*
ISL 6844IB
-40 to +105
8 Ld SOIC
M8.15
ISL6844IBZ* (Note)
6844 IBZ
-40 to +105
8 Ld SOIC (Pb-free)
M8.15
ISL6844IRZ-T† (Note)
44Z
-40 to +105
8 Ld 2x3 DFN (Pb-free)
L8.2x3
ISL6844IU*
6844
-40 to +105
8 Ld MSOP
M8.118
ISL6844IUZ* (Note)
6844Z
-40 to +105
8 Ld MSOP (Pb-free)
M8.118
ISL6845IB*
ISL 6845IB
-40 to +105
8 Ld SOIC
M8.15
ISL6845IBZ* (Note)
6845 IBZ
-40 to +105
8 Ld SOIC (Pb-free)
M8.15
ISL6845IRZ-T† (Note)
45Z
-40 to +105
8 Ld 2x3 DFN (Pb-free)
L8.2x3
ISL6845IU*
6845
-40 to +105
8 Ld MSOP
M8.118
ISL6845IUZ* (Note)
6845Z
-40 to +105
8 Ld MSOP (Pb-free)
M8.118
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
†Contact Factory for Availability
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations).
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J
STD-020.
2
FN9124.10
August 7, 2008
Functional Block Diagram
VREF
5.00V
VDD
VREF
UVLO
COMPARATOR
ENABLE
VDD OK
+
-
VREF FAULT
-
A
2.5V
+
-
3
VREF
UV COMPARATOR
4.65V 4.80V
GND
BG
A = 0.5
PWM
COMPARATOR
+
-
CS
100mV
ERROR
AMPLIFIER
2R
1.1V
CLAMP
+
-
FB
+
-
ISL6841/ISL6844/ISL6845
ONLY
Q
R
T
Q
COMP
OUT
VREF
S Q
R Q
2.6V
0.7V
RESET
DOMINANT
ON
OSCILLATOR
COMPARATOR
+
RTCT
8.4mA
FN9124.10
August 7, 2008
ON
CLOCK
P/N
-40, -41
-42, -44
-43, -45
UVLO ON/OFF
7.0/6.6V
14.3/8.8V
8.4/7.2V
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
+
BG +-
Typical Application - 48V Input Dual Output Flyback
CR5
+3.3V
C21
T1
+ C15
+ C16
R21
VIN+
+1.8V
C4
R3
CR4
C17
CR2
C5
+
C20
C19
RETURN
CR6
R1
36V TO 75V
C1
R17
R16
C6
C3
R18
R19
U2
Q1
C14
R4
R22
C13
R15
U3
VIN-
R27
R20
U4
R26
COMP
VREF
CS
V DD
FB
OUT
RTCT
GND
ISL684x
R6
R10
CR1
Q3
C12
VR1
C8
R13
C11
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
4
C2
C22
+
FN9124.10
August 7, 2008
Typical Application - Boost Converter
R8
C10
CR1
L1
VIN+
+VOUT
+
C3
5
R4
Q1
RETURN
R5
C9
C1
R1
R2
U1
COMP
ISL684x
FB
CS
C4
RTCT
R7
VREF
C8
VIN+
VDD
OUT
GND
R3
C5
C7
VIN-
C6
R6
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
C2
FN9124.10
August 7, 2008
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Absolute Maximum Ratings
Thermal Information
Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V
OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VDD + 0.3V
Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 6.0V
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A
Thermal Resistance (Typical)
Operating Conditions
Temperature Range
ISL684xIx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Supply Voltage Range (Typical, Note 3)
ISL6840, ISL6841. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5V to 14V
ISL6843, ISL6845. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 16V
ISL6842, ISL6844. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V to 18V
θJA (°C/W)
θJC (°C/W)
DFN Package (Notes 1, 2) . . . . . . . . . .
77
6
SOIC Package (Note 1) . . . . . . . . . . . .
100
N/A
MSOP Package (Note 1) . . . . . . . . . . .
130
N/A
Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
3. All voltages are with respect to GND.
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” and “Typical
Application” schematic on pages 3 and 4. VDD = 15V (Note 6), Rt = 10kΩ, Ct = 3.3nF, TA = -40 to +105°C Typical
values are at TA = +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
START Threshold (ISL6840, ISL6841)
6.5
7.0
7.5
V
START Threshold (ISL6843, ISL6845)
7.8
8.4
9.0
V
START Threshold (ISL6842, ISL6844)
13.3
14.3
15.3
V
STOP Threshold (ISL6840, ISL6841)
6.1
6.6
6.9
V
STOP Threshold (ISL6843, ISL6845)
6.7
7.2
7.7
V
STOP Threshold (ISL6842, ISL6844)
8.0
8.8
9.6
V
Hysteresis (ISL6840, ISL6841)
-
0.4
-
V
Hysteresis (ISL6843, ISL6845)
-
0.8
-
V
-
5.4
-
V
-
60
100
µA
UNDERVOLTAGE LOCKOUT
Hysteresis (ISL6842, ISL6844)
Start-up Current, IDD
VDD < START Threshold
Operating Current, IDD
(Note 4)
-
3.3
4.0
mA
Operating Supply Current, ID
Includes 1nF GATE loading
-
4.1
5.5
mA
4.925
5.000
5.050
V
-
5
-
mV
REFERENCE VOLTAGE
Overall Accuracy
Over line (VDD = 12V to 18V), load,
temperature
Long Term Stability
TA = +125°C, 1000 hours (Note 5)
Fault Voltage
4.40
4.65
4.85
V
VREF Good Voltage
4.60
4.80
VREF - 0.05
V
Hysteresis
50
165
250
mV
Current Limit, Sourcing
-20
-
-
mA
5
-
-
mA
Current Limit, Sinking
CURRENT SENSE
Input Bias Current
VCS = 1V
CS Offset Voltage
VCS = 0V (Note 5)
COMP to PWM Comparator Offset Voltage
VCS = 0V (Note 5)
Input Signal, Maximum
6
-1.0
-
1.0
µA
95
100
105
mV
0.80
1.15
1.30
V
0.91
0.97
1.03
V
FN9124.10
August 7, 2008
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” and “Typical
Application” schematic on pages 3 and 4. VDD = 15V (Note 6), Rt = 10kΩ, Ct = 3.3nF, TA = -40 to +105°C Typical
values are at TA = +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested. (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Gain, ACS = ΔVCOMP/ΔVCS
0 < VCS < 910mV, VFB = 0V
(Note 5)
2.5
3.0
3.5
V/V
CS to OUT Delay
(Note 5)
-
25
40
ns
ERROR AMPLIFIER
Open Loop Voltage Gain
(Note 5)
60
90
-
dB
Unity Gain Bandwidth
(Note 5)
3.5
5
-
MHz
2.475
2.514
2.55
V
-1.0
-0.2
1.0
µA
Reference Voltage
VFB = VCOMP
FB Input Bias Current
VFB = 0V
COMP Sink Current
VCOMP = 1.5V, VFB = 2.7V
1.0
-
-
mA
COMP Source Current
VCOMP = 1.5V, VFB = 2.3V
-0.4
-
-
mA
COMP VOH
VFB = 2.3V
4.80
-
VREF
V
COMP VOL
VFB = 2.7V
0.4
-
1.0
V
PSRR
Frequency = 120Hz, VDD = 12V to
18V (Note 5)
60
80
-
dB
Frequency Accuracy
Initial, TJ = +25°C
49
52
55
kHz
Frequency Variation with VDD
T = +25°C (f18V - f12V)/f12V
-
0.2
1.0
%
Temperature Stability
(Note 5)
-
-
5
%
Amplitude, Peak-to-Peak
-
1.9
-
V
RTCT Discharge Voltage
-
0.7
-
V
7.2
8.4
9.5
mA
OSCILLATOR
Discharge Current
RTCT = 2.0V
OUTPUT
Gate VOH
VDD to OUT, IOUT = -200mA
-
1.0
2.0
V
Gate VOL
OUT to GND, IOUT = 200mA
-
1.0
2.0
V
Peak Output Current
COUT = 1nF (Note 5)
-
1.0
-
A
Rise Time
COUT = 1nF (Note 5)
-
20
40
ns
Fall Time
COUT = 1nF (Note 5)
-
20
40
ns
PWM
Maximum Duty Cycle
Minimum Duty Cycle
ISL6840, ISL6842, ISL6843
94
96
-
%
ISL6841, ISL6844, ISL6845
47
48
-
%
ISL6840, ISL6842, ISL6843
-
-
0
%
ISL6841, ISL6844, ISL6845
-
-
0
%
NOTES:
4. This is the VDD current consumed when the device is active but not switching. Does not include gate drive current.
5. Limits established by characterization and are not production tested.
6. Adjust VDD above the start threshold and then lower to 15V.
7
FN9124.10
August 7, 2008
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Typical Performance Curves
1.001
NORMALIZED FREQUENCY
1.02
1.000
NORMALIZED VREF
1.01
1.00
0.99
0.98
0.97
-40
0.999
0.998
0.997
0.996
-10
20
50
80
0.995
-40 -25
110
-10
5
FIGURE 1. FREQUENCY vs TEMPERATURE
50
65
80
95 110
103
1.000
FREQUENCY (kHz)
NORMALIZED EA REFERENCE
35
FIGURE 2. REFERENCE VOLTAGE vs TEMPERATURE
1.002
0.998
0.996
0.994
-40 -25 -10
20
TEMPERATURE (°C)
TEMPERATURE (°C)
5
20
35
50
65
80
95
110
TEMPERATURE (°C)
100pF
100
220pF
330pF
470pF
1.0nF
10
2.2nF
3.3nF
4.7nF
1
10
20
30
40
50 60
RT (kΩ)
70
80
90
100
FIGURE 4. RESISTANCE FOR CT CAPACITOR VALUES GIVEN
FIGURE 3. EA REFERENCE vs TEMPERATURE
Pin Descriptions
RTCT - This is the oscillator timing control pin. The
operational frequency and maximum duty cycle are set by
connecting a resistor, RT, between VREF and this pin and a
timing capacitor, CT, from this pin to GND. The oscillator
produces a sawtooth waveform with a programmable
frequency range up to 2.0MHz. The charge time, tC, the
discharge time, tD, the switching frequency, f, and the
maximum duty cycle, Dmax, can be calculated from
Equations 1, 2, 3 and 4:
COMP - COMP is the output of the error amplifier and the
input of the PWM comparator. The control loop frequency
compensation network is connected between the COMP and
FB pins.
FB - The output voltage feedback is connected to the
inverting input of the error amplifier through this pin. The
non-inverting input of the error amplifier is internally tied to a
reference voltage.
(EQ. 1)
CS - This is the current sense input to the PWM comparator.
The range of the input signal is nominally 0V to 1.0V and has
an internal offset of 100mV.
0.0083 • RT – 4.3
t D ≈ – RT • CT • ln ⎛ ----------------------------------------------⎞
⎝ 0.0083 • RT – 2.4⎠
(EQ. 2)
GND - GND is the power and small signal reference ground
for all functions.
f = 1 ⁄ (tC + tD)
(EQ. 3)
t
C
≈ 0.583 • RT • CT
D = t
C
•f
(EQ. 4)
Figure 4 may be used as a guideline in selecting the
capacitor and resistor values required for a given frequency.
8
OUT - This is the drive output to the power switching device.
It is a high current output capable of driving the gate of a
power MOSFET with peak currents of 1.0A.
VDD - VDD is the power connection for the device. The total
supply current will depend on the load applied to OUT. Total
IDD current is the sum of the operating current and the
average output current. Knowing the operating frequency, f,
FN9124.10
August 7, 2008
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
I OUT = Qg × f
(EQ. 5)
To optimize noise immunity, bypass VDD to GND with a
ceramic capacitor as close to the VDD and GND pins as
possible.
VREF - The 5.00V reference voltage output. +1.0/-1.5%
tolerance over line, load and operating temperature. Bypass
to GND with a 0.1µF to 3.3µF capacitor to filter this output as
needed.
Functional Description
Features
The ISL684x current mode PWMs make an ideal choice for
low-cost flyback and forward topology applications. With its
greatly improved performance over industry standard parts,
it is the obvious choice for new designs or existing designs
which require updating.
Slope Compensation
For applications where the maximum duty cycle is less than
50%, slope compensation may be used to improve noise
immunity, particularly at lighter loads. The amount of slope
compensation required for noise immunity is determined
empirically, but is generally about 10% of the full scale
current feedback signal. For applications where the duty
cycle is greater than 50%, slope compensation is required to
prevent instability. The minimum amount of slope
compensation required corresponds to 1/2 the inductor
downslope. Adding excessive slope compensation,
however, results in a control loop that behaves more as a
voltage mode controller than as a current mode controller.
CS SIGNAL (V)
and the MOSFET gate charge, Qg, the average output
current can be calculated in Equation 5:
DOWNSLOPE
CURRENT SENSE SIGNAL
Oscillator
TIME
The ISL684x family of controllers have a sawtooth oscillator
with a programmable frequency range to 2MHz, which can
be programmed with a resistor from VREF and a capacitor to
GND on the RTCT pin. (Please refer to Figure 4 for the
resistor and capacitance required for a given frequency.)
FIGURE 6. CURRENT SENSE DOWNSLOPE
Slope compensation may be added to the CS signal shown
in Figure 7.
RTCT
Soft-start must be implemented externally. One method,
illustrated in Figure 5, clamps the voltage on COMP.
VREF
ISL684x
Soft-Start Operation
CS
VREF
ISL684x
COMP
GND
FIGURE 7. SLOPE COMPENSATION
Fault Conditions
FIGURE 5. SOFT-START
A Fault condition occurs if VREF falls below 4.65V. When a
Fault is detected, OUT is disabled. When VREF exceeds
4.80V, the Fault condition clears, and OUT is enabled.
Gate Drive
Ground Plane Requirements
The ISL684x family are capable of sourcing and sinking 1A
peak current. To limit the peak current through the IC, an
optional external resistor may be placed between the
totem-pole output of the IC (OUT pin) and the gate of the
MOSFET. This small series resistor also damps any
oscillations caused by the resonant tank of the parasitic
inductances in the traces of the board and the FET’s input
capacitance.
Careful layout is essential for satisfactory operation of the
device. A good ground plane must be employed. A unique
section of the ground plane must be designated for high di/dt
currents associated with the output stage. VDD should be
bypassed directly to GND with good high frequency
capacitors.
9
FN9124.10
August 7, 2008
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Small Outline Plastic Packages (SOIC)
M8.15 (JEDEC MS-012-AA ISSUE C)
N
8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE
INDEX
AREA
H
0.25(0.010) M
B M
INCHES
E
SYMBOL
-B-
1
2
3
L
SEATING PLANE
-A-
A
D
h x 45°
-C-
e
A1
B
0.25(0.010) M
C
0.10(0.004)
C A M
MIN
MAX
MIN
MAX
NOTES
A
0.0532
0.0688
1.35
1.75
-
A1
0.0040
0.0098
0.10
0.25
-
B
0.013
0.020
0.33
0.51
9
C
0.0075
0.0098
0.19
0.25
-
D
0.1890
0.1968
4.80
5.00
3
E
0.1497
0.1574
3.80
4.00
4
e
α
B S
0.050 BSC
-
0.2284
0.2440
5.80
6.20
-
h
0.0099
0.0196
0.25
0.50
5
L
0.016
0.050
0.40
1.27
6
α
1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of
Publication Number 95.
1.27 BSC
H
N
NOTES:
MILLIMETERS
8
0°
8
8°
0°
7
8°
Rev. 1 6/05
2. Dimensioning and tolerancing per ANSI Y14.5M-1982.
3. Dimension “D” does not include mold flash, protrusions or gate burrs.
Mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006
inch) per side.
4. Dimension “E” does not include interlead flash or protrusions. Interlead flash and protrusions shall not exceed 0.25mm (0.010 inch) per
side.
5. The chamfer on the body is optional. If it is not present, a visual index
feature must be located within the crosshatched area.
6. “L” is the length of terminal for soldering to a substrate.
7. “N” is the number of terminal positions.
8. Terminal numbers are shown for reference only.
9. The lead width “B”, as measured 0.36mm (0.014 inch) or greater
above the seating plane, shall not exceed a maximum value of
0.61mm (0.024 inch).
10. Controlling dimension: MILLIMETER. Converted inch dimensions
are not necessarily exact.
10
FN9124.10
August 7, 2008
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Mini Small Outline Plastic Packages (MSOP)
M8.118 (JEDEC MO-187AA)
N
8 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE
E1
INCHES
E
-B-
INDEX
AREA
0.20 (0.008)
1 2
A B C
TOP VIEW
4X θ
0.25
(0.010)
R1
R
GAUGE
PLANE
SEATING
PLANE -CA
4X θ
A2
A1
b
-H-
0.10 (0.004)
L
SEATING
PLANE
C
MIN
MAX
MIN
MAX
NOTES
A
0.037
0.043
0.94
1.10
-
A1
0.002
0.006
0.05
0.15
-
A2
0.030
0.037
0.75
0.95
-
b
0.010
0.014
0.25
0.36
9
c
0.004
0.008
0.09
0.20
-
D
0.116
0.120
2.95
3.05
3
E1
0.116
0.120
2.95
3.05
4
0.026 BSC
0.20 (0.008)
C
C
a
SIDE VIEW
CL
E1
0.20 (0.008)
C D
-B-
-
0.187
0.199
4.75
5.05
-
L
0.016
0.028
0.40
0.70
6
0.037 REF
N
-A-
0.65 BSC
E
L1
e
D
SYMBOL
e
L1
MILLIMETERS
0.95 REF
8
R
0.003
R1
0
α
-
8
-
0.07
0.003
-
5o
15o
0o
6o
7
-
-
0.07
-
-
5o
15o
-
0o
6o
Rev. 2 01/03
END VIEW
NOTES:
1. These package dimensions are within allowable dimensions of
JEDEC MO-187BA.
2. Dimensioning and tolerancing per ANSI Y14.5M-1994.
3. Dimension “D” does not include mold flash, protrusions or gate
burrs and are measured at Datum Plane. Mold flash, protrusion
and gate burrs shall not exceed 0.15mm (0.006 inch) per side.
4. Dimension “E1” does not include interlead flash or protrusions
and are measured at Datum Plane. - H - Interlead flash and
protrusions shall not exceed 0.15mm (0.006 inch) per side.
5. Formed leads shall be planar with respect to one another within
0.10mm (0.004) at seating Plane.
6. “L” is the length of terminal for soldering to a substrate.
7. “N” is the number of terminal positions.
8. Terminal numbers are shown for reference only.
9. Dimension “b” does not include dambar protrusion. Allowable
dambar protrusion shall be 0.08mm (0.003 inch) total in excess
of “b” dimension at maximum material condition. Minimum space
between protrusion and adjacent lead is 0.07mm (0.0027 inch).
10. Datums -A -H- .
and - B - to be determined at Datum plane
11. Controlling dimension: MILLIMETER. Converted inch dimensions are for reference only.
11
FN9124.10
August 7, 2008
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Dual Flat No-Lead Plastic Package (DFN)
L8.2x3
2X
0.15 C A
A
D
8 LEAD DUAL FLAT NO-LEAD PLASTIC PACKAGE
2X
MILLIMETERS
0.15 C B
SYMBOL
E
MIN
A
0.80
A1
-
6
A3
INDEX
AREA
b
TOP VIEW
D2
0.20
0.10
SIDE VIEW
C
SEATING
PLANE
D2
(DATUM B)
0.08 C
A3
7
0.90
1.00
-
-
0.05
-
0.25
0.32
1.50
1.65
1.75
1
7,8
3.00 BSC
-
8
1.65
e
1.80
1.90
7,8
0.50 BSC
-
k
0.20
-
-
-
L
0.30
0.40
0.50
8
N
8
Nd
4
D2/2
6
INDEX
AREA
5,8
C
E2
A
NOTES
2.00 BSC
E
//
MAX
0.20 REF
D
B
NOMINAL
2
3
Rev. 0 6/04
2
NX k
NOTES:
1. Dimensioning and tolerancing conform to ASME Y14.5-1994.
2. N is the number of terminals.
3. Nd refers to the number of terminals on D.
(DATUM A)
E2
4. All dimensions are in millimeters. Angles are in degrees.
E2/2
5. Dimension b applies to the metallized terminal and is measured
between 0.25mm and 0.30mm from the terminal tip.
NX L
6. The configuration of the pin #1 identifier is optional, but must be
located within the zone indicated. The pin #1 identifier may be
either a mold or mark feature.
N N-1
NX b
e
8
5
0.10
(Nd-1)Xe
REF.
M C A B
7. Dimensions D2 and E2 are for the exposed pads which provide
improved electrical and thermal performance.
8. Nominal dimensions are provided to assist with PCB Land
Pattern Design efforts, see Intersil Technical Brief TB389.
BOTTOM VIEW
CL
(A1)
NX (b)
L
5
SECTION "C-C"
C C
TERMINAL TIP
e
FOR EVEN TERMINAL/SIDE
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
12
FN9124.10
August 7, 2008
Similar pages