2006 California Micro Devices Corp. All rights reserved.
04/26/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
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Tel: 408.263.3214
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1
CM9156B
PRELIMINARY
Features
3.0V to 6.5V input voltage range
Dual mode operation; 1x and 1.5x
Fixed 4.5V output with initial accuracy of 2%
Supports up to 180mA (@4V) output
High efficiency at both high and low input voltage
Low external parts count, requires no inductor
PWM brightness control via the ENA pin
Selectable 262kHz or 650kHz switching frequency
Low shutdown current of <1A
Soft start prevents excessive inrush current
Over-temperature and over-current protection
Low output ripple (<1%), low EMI
Input protection provides superior ESD rating,
requiring only standard handling precautions
TDFN-10 or MSOP-10 package
Optional RoHS compliant lead free package
Applications
Drive white LEDs to backlight color LCDs
Drive white or RGB LEDs for camera flash
Cellular phones
MP3 players
PDAs, GPS
Product Description
CM9156B is an efficient 1.5x switched capacitor
(charge pump) regulator ideal for white LED applica-
tions. It has a regulated 4.5V, 120mA output, capable
of driving up to six parallel white LEDs. With a typical
operating input voltage range from 3.0V to 6.0V, the
CM9156B can be operated from a single-cell Li-Ion
battery.
It features an efficient, 1.5x charge-pump circuit that
uses only two 1.0F ceramic bucket capacitors and
two small capacitors for VIN and VOUT. The CM9156B
offers a selectable switching frequency of 262kHz or
650kHz. The LED brightness can be adjusted by apply-
ing a PWM signal on the ENA pin.
The CM9156B output voltage is regulated to 4.5V,
5% over the line and load ranges. Up 180mA of output
current is available. The proprietary design architec-
ture maintains high efficiency (> 80%), and at low V
IN
provides longer battery life. With a high V
IN,
or when
the adapter is powered, it provides cool reliable opera-
tion. It offers low output voltage ripple, typically less
than 50mV. Internal over-temperature and over-current
management provide short circuit protection.
The CM9156B is packaged in either a space saving
10-Lead TDFN or 10-Lead MSOP package. It can
operate over the industrial temperature range of
25
-
C to 85
-
C.
.
1.0uF
1.0uF
4.5V
3.0V to 6.0V
1.0uF
C 1P
V OUT
V IN
C L K
C 1N
C 2P
GND
E NA
C 2N
CM9156B
1.0uF
PhotonIC
TM
Typical Application
Charge-Pump White LED Driver
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CM9156B
PRELIMINARY
Ordering Information
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
PACKAGE / PINOUT DIAGRAM
Note: This drawing is not to scale.
CMxxx
GND
4
3
2
1
4
3
2
1
6
7
8
9
PAD
xxxxxx
7
8
9
10
6
5
5
10
Pin 1
Marking
BOTTOM VIEW
(Pins Up View)
TOP VIEW
(Pins Down View)
CM9156B-01DE
10 Lead TDFN Package
1
2
3
4
10
9
8
7
VOUT
C1P
VIN
CLK
C2P
C1N
GND
C2N
TOP VIEW
5
6
NC
ENA
CM9156B-01MR
10 Lead MSOP Package
PART NUMBERING INFORMATION
Pins
Package
Lead-free Finish
Ordering Part Number
1
Part Marking
10
TDFN
CM9156B-01DE
10
MSOP
CM9156B-01MR
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNITS
ESD Protection (HBM)
2
kV
VIN to GND
[GND - 0.3] to +6.5
V
Pin Voltages
V
OUT
to GND
C1P, C1N to GND
ENA, CLK to GND
[GND - 0.3] to +6.0
[GND - 0.3] to +4.5
[GND - 0.3] to +6.0
V
V
V
Storage Temperature Range
-65 to +150
C
Operating Temperature Range
-40 to +85
C
Lead Temperature (Soldering, 10s)
300
C
Package Pinout
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CM9156B
PRELIMINARY
ELECTRICAL OPERATING CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
IN
VIN Supply Voltage
3.0
6.0
V
I
SD
Shut-Down Supply
Current
ENA = 0
1
A
I
Q
Quiescent Current
Fs = 262 kHz
Fs = 650 kHz
800
1600
1200
2500
A
A
Charge-pump Circuit
V
R LOAD
Load Regulation
Fs = 262 kHz or 650 kHz,
Iout = 0 mA to 120 mA,
Vin = 3.2V to 6.5V
Iout = 0 mA to 90 mA,
Vin = 3.0V to 3.2V
4.2
4.0
4.5
4.1
4.7
4.2
V
V
V
R LIN
Line Regulation
Iout = 60 mA,
Vin = 3.2V to 6.5V
Vin = 3.0V to 3.2V
4.4
4.0
4.5
4.1
4.6
4.3
V
V
I
OUT
Output Current
Vout = 4.5V
Vout = 4.0V
120
180
mA
mA
V
OUTR
Output Ripple Voltage
Fs = 262 kHz, Iout = 60 mA
50
mV
fs
Switching Frequency
CLK = 0
CLK = 1
262
650
kHz
kHz
CLK
High Level Input Voltage
1.2
V
Low Level Input Voltage
0.6
V
ENA
V
IH
High Level Input Voltage
1.3
V
V
IL
Low Level Input Voltage
0.4
V
Protection
I
LIM
Over-Current Limit
400
600
mA
T
JSD
Over-Temperature Limit
135
C
T
HYS
Over-Temperature Hystere-
sis
15
C
Specifications (cont'd)
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CM9156B
PRELIMINARY
C
IN
=C
OUT
=C
1
=C
2
=1.0
F,
T
A
=25C
, unless specified
Line Regulation
Iout=120mA
4.0
4.1
4.2
4.3
4.4
4.5
4.6
3.00
4.00
5.00
6.00
Vin (V)
V
out
(
V
)
Line Regulation
Iout=60mA
4.0
4.1
4.2
4.3
4.4
4.5
4.6
3.00
4.00
5.00
6.00
Vin (V)
Vo
u
t
(V)
262 kHz Load Regulation
4.00
4.25
4.50
4.75
10
30
50
70
90
110
Load Current (mA)
Vo
u
t
(V)
3.6 Vin
3.4 Vin
5 Vin
650 kHz Load Regulation
4.00
4.25
4.50
4.75
10
30
50
70
90
110
Load Current (mA)
Vo
u
t
(V)
3.6 Vin
3.4 Vin
5 Vin
Efficiency
50
60
70
80
90
100
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Effi
c
i
e
n
c
y
(
%
)
Iout=60mA
Efficiency
50
60
70
80
90
100
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Effi
c
i
e
n
c
y
(
%
)
Iout=120mA
Typical Performance Curves
2006 California Micro Devices Corp. All rights reserved.
04/26/06
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CM9156B
PRELIMINARY
C
IN
=C
OUT
=C
1
=C
2
=1.0
F
, T
A
=25C, unless specified
Switching Frequency - 650kHz
610
630
650
670
690
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
Input Voltage (V)
Fr
e
que
nc
y
(
k
H
z
)
-40C
20C
85C
Switching Frequency - 262kHz
246
254
262
270
278
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
Input Voltage (V)
Fr
e
que
nc
y
(
k
H
z
)
85C
20C
- 40C
Vout vs. Temperature
4.450
4.475
4.500
4.525
4.550
-40
-15
10
35
60
85
Temperature (C)
V
out
(
V
)
Vin = 3.6V
No Load Input Current
400
800
1200
1600
2000
3.2
3.6
4.0
4.4
4.8
5.2
5.6
6.0
Vin (V)
Iq
(
A)
650kHz
262kHz
Typical Performance Curves (cont'd)
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CM9156B
PRELIMINARY
C
IN
=C
OUT
=C
1
=C
2
=1.0
F
, T
A
=25C, unless specified
Frequency Selection Table
Table 1: Frequency Selection
Startup
1 ms/div
Iin, 200 mA/div
Vout, 2V/div
Vin, 2V/div
Vin=3.8V
Iout=120 mA
100 mV/div
Vin = 3.8V
Output Ripple, 262 kHz
Iout=120 mA
Iout=60 mA
100 mV/div
Vin = 3.8V
Output Ripple, 650 kHz
Iout=60 mA
Switching Frequency
CLK1
262kHz
0
650kHz
1
Typical Performance Curves (cont'd)
2006 California Micro Devices Corp. All rights reserved.
04/26/06
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CM9156B
PRELIMINARY
Pin Descriptions
4.5V
L DO
Pre- R egulator
1.5x C harge Pump
C L K
OSC
C ounter
Driver
V IN
ENA
C 1P
C 1N
C 2P
C 2N
V OUT
GND
1.0uF
1.0uF
1.0uF
1.0uF
3.0V TO 6.0V
CM9156B
PIN DESCRIPTIONS
LEAD(s)
NAME
DESCRIPTION
1
VOUT
The regulated 4.5V output voltage pin. This pin requires a 1.0
F or larger ceramic
capacitor to ground. This pin connects to the anodes of the LEDs.
2
C1P
This pin is the plus side of charge-pump bucket capacitor C1. Connect a 1.0
F
ceramic capacitor with a voltage rating of 10V or greater between C1N and C1P.
3
VIN
Positive supply voltage input pin. This voltage should be between 3.0V and 6V.
This pin requires a 1.0
F or larger ceramic capacitor to ground.
4
CLK
Pin for setting switching frequency (see Table 1 on page 6)
5
NC
Pin not connected.
6
ENA
Enable pin, active high. By applying a PWM signal to this pin, the LED brightness
can be controlled.
7
C2N
This pin is the minus side of charge-pump bucket capacitor C2. Connect a 1.0
F
ceramic capacitor between C2N and C2P.
8
GND
Ground pin.
9
C1N
This pin is the minus side of charge-pump bucket capacitor C1. Connect a 1.0
F
ceramic capacitor between C1N and C1P.
10
C2P
This pin is the plus side of charge-pump bucket capacitor C2. Connect a 1.0
F
ceramic capacitor between C2N and C2P.
Functional Block Diagram
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CM9156B
PRELIMINARY
The CM9156B is a switched capacitor, charge pump
voltage converter ideally suited for driving white LEDs
to backlight or sidelight LCD color displays for portable
devices, such as cellular phones, PDAs, and any appli-
cation where small space and efficiency are critical.
The CM9156B charge pump is the perfect driver for
such portable applications, providing efficiency, com-
pact overall size, low system cost and minimum EMI.
The CM9156B contains a linear low dropout (LDO)
regulator followed by a 1.5x fractional charge pump
that converts the nominal lithium-ion (Li-Ion) or lithium
polymer battery voltage levels (3.6V) by a gain of 1.5
times and regulates the converted voltage to 4.5V,
5%, enough to drive the forward voltage drop of white
LEDs. The CM9156B requires only two external
switched, or bucket, capacitors, plus an input and an
output capacitor, providing for a compact, low profile
design. In many applications, all these can conve-
niently be the same value of 1.0
F, commonly available
in a compact 0805 surface mount package.
The CM9156B is intended for white LED applications,
but it can drive most all types of LEDs with a forward
voltage drop of less than 4V.
The LED current is determined by its series resistor,
R
LED
, and is approximately;
Typical white LEDs have a forward voltage drop,
V
FWD_LED
, of 3.5V to 3.7V. Like single-junction devices,
white LEDs often have poorly matched forward volt-
ages. If the LEDs were put in parallel without a series
resistor, the current in the paralleled branches would
vary, resulting in non-uniform brightness. R
LED,
in addi-
tion to setting the current, compensates for this varia-
tion by functioning as a ballast resistor, providing
negative feedback for each paralleled LED.
CM9156B Operation
When a voltage exceeding the undervoltage lockout
threshold (UVLO) is applied to the VIN pin, the
CM9156B initiates a softstart cycle, typically lasting
1000
s. Softstart limits the inrush current while the out-
put capacitors are charged during the power-up of the
device.
The input voltage, VIN, passes through an LDO pre-
regulator that compares the output voltage to a preci-
sion bandgap reference. After the LDO, the charge
pump boosts the LDO voltage by 1.5 times. A feedback
circuit to the LDO monitors the output voltage, and
when the output voltage reaches 4.5V, the LDO output
will operate at about 3V, regulating the device output at
1.5 x 3V = 4.5V.
The charge pump uses two phases from the oscillator
to drive internal switches that are connected to the
bucket capacitors, C1 and C2, as shown in
Figure 1
. In
the first switch position, the bucket capacitors are con-
nected in series and each are charged from the LDO to
a voltage of V
LDO
/2. The next phase changes the
switch positions so that C1 and C2 are put in parallel,
and places them on top of V
LDO
. The resulting voltage
across C
OUT
is then; V
LDO
+1/2V
LDO
= 1.5 x V
LDO.
Figure 1.
Switch operation
LED
LED
_
FWD
LED
R
V
V
5
.
4
I
-
=
Charge C1 and C2 to V
LDO
LDO
VIN
FB
C1
C2
V
LDO
V
LDO
VOUT
V
LDO
LDO
VIN
FB
C1
C2
V
LDO
V
LDO
V
LDO
C
OUT
VOUT
C
OUT
Application Information
2006 California Micro Devices Corp. All rights reserved.
04/26/06
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9
CM9156B
PRELIMINARY
When the input voltage is greater then the output volt-
age, then all this sophistication, and the accompanying
power loss, is unnecessary. The smart CM9156B
knows this, and if the input voltage rises above 5V, the
charge pump automatically disables, removing the volt-
age gain stage and the output is then provided directly
through the LDO, regulated at 4.5V. This increases the
efficiency and minimizes chip heating in this operating
condition.
The CM9156B has over-temperature and over-current
protection circuitry to limit device over-stress and fail-
ure during short circuit conditions. An overcurrent con-
dition will limit the output current (approximately
400mA ~ 600mA) and will cause the output voltage to
drop, until automatically resetting after removal of the
excessive current. Over-temperature protection dis-
ables the IC when the junction is about 135
-
C, and
automatically turns-on the IC when the junction tem-
perature drops by approximately 15
-
C.
Efficiency
A conventional charge pump with a fixed gain of 2x will
usually develop more voltage than is needed to drive
paralleled white LEDs from Li-Ion sources. This exces-
sive gain develops a higher internal voltage, reducing
system efficiency and increasing battery drain in porta-
ble devices. A fractional charge pump with a gain of
1.5x is better suited for driving white LEDs in these
applications.
The CM9156B charge pump automatically switches
between 2 conversion gains, 1x and 1.5x, allowing high
efficiency levels over a wide operating input voltage
range. The 1x mode allows the regulated LDO voltage
to pass directly through to the output when sufficient
input voltage is available; the 1.5x charge pump is
enabled only when the battery input is too low to sus-
tain the output load.
At nominal loads, the switching losses and quiescent
current are negligible. If these losses are ignored for
simplicity, the efficiency, , for an ideal 1.5x charge
pump can be expressed as the output power divided by
the input power;
For an ideal 1.5x charge pump, I
IN
= 1.5 x I
OUT
, and the
efficiency may be expressed as;
The ideal 2x charge pump can be similarly expressed;
In 1x mode, when the input voltage is above the output
voltage, the part functions as a linear regulator and the
ideal efficiency is simply Vout/Vin.
The typical conversion efficiency plots for these modes,
with some losses, are shown in
Figure 2
.
Figure 2. Ideal efficiency curves
As can be seen, the CM9156B, with 1x and 1.5x
modes, has better efficiency in this application than a
fixed 2x charge pump. At low battery voltages, the
higher efficiency of the CM9156B charge pump's 1,5x
gain reduces the battery drain. At higher input volt-
ages, above 4.9V typically seen when the system is
running off an AC adapter, the CM9156B, operating the
P
OUT
P
IN
-------------
IN
OUT
IN
OUT
OUT
IN
OUT
OUT
IN
OUT
V
5
.
1
V
5
.
4
,
V
5
.
4
V
V
5
.
1
V
I
5
.
1
V
I
V
P
P
=
=
P
OUT
P
IN
-------------
4.5V
2.0 V
IN
-----------------------
Efficiency
40
55
70
85
100
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Effi
c
i
e
n
c
y
(%
)
Vout=4.5V
2X
1.5X
1X
dual mode
CM9156B
Application Information (cont'd)
2006 California Micro Devices Corp. All rights reserved.
10
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04/26/06
CM9156B
PRELIMINARY
1x mode, has better efficiency than single mode 1.5x
or 2x charge pumps, lowering the power dissipation for
cooler circuit operation and long life.
CM9156B Design Example
Capacitor Selection
The external bucket capacitors will affect the output
impedance of the converter, so surface-mount, low
ESR ceramic capacitors are recommended. Tantalum
and Aluminum capacitors should not be used because
their ESR is too high. The ceramic dielectric must be
stable over the operating temperature and voltage
range, X7R or X5R dielectrics are recommended. In
noise sensitive applications, output ripple can be fur-
ther reduced by increasing the capacitance of the out-
put capacitor. Reflected input ripple current depends
on the impedance of the VIN source, which includes
the PCB traces. Increasing the input capacitor will
reduce this ripple. The input capacitor also affects the
output voltage ripple. All the capacitors should be
located close to the device for best performance.
Frequency Selection
The optimal switching frequency depends on the allow-
able system current draw, the load current, ripple and
EMI requirements. The CM9156B's operating fre-
quency choices are 262kHz or 650kHz. These two fre-
quencies are selected by programming the CLK input.
Refer to Table 1. The supply current for a charge pump
is proportional to its switching frequency. A lower
switching frequency allows reduced quiescent current
for more efficient operation, but reduces the output cur-
rent capability and in some cases, causes higher rip-
ple. Higher frequencies are used when larger load
currents are demanded.
The frequency is typically selected to achieve maxi-
mum efficiency while avoiding sensitive frequencies
with the switching fundamental and its harmonics. The
switching frequency can be set outside the critical fre-
quency spectrums of cellular communications band-
widths. Once set, the switching frequency and its
harmonics remain fixed, making filtering easy.
LED Brightness Control
Figure 3. PWM brightness control, lowered
quiescent current
Changes in ambient light often require the backlight
display intensity to be adjusted, usually to conserve
battery life. There are simple solutions to lowering the
LED brightness when using the CM9156B.
A PWM signal applied to the ENA pin can be used to
control the brightness, which is more efficient than
other solutions that dissipate unwanted LED current in
the series resistors. It also maintains the white LED
color fidelity by avoiding color temperature variations
that come with bias current changes. The LED intensity
is determined by the PWM duty cycle, which can vary
from 0% to 100%.
In the configuration shown in
Figure 3
, the brightness
is controlled by the PWM signal applied to the LEDs.
Decreased Duty Cycle will lower the LED brightness,
See
Figure 4
and
Figure 5
. The same signal is also
applied to the CM9156B, reducing the charge pump
switching frequency via the CLK control. When the
PWM signal is high, CLK goes high, the operating fre-
quency is 650kHz (refer to Table 1), and the LED cur-
rent path is complete through the switch. When the
PWM signal is low, the LED current is stopped as the
switch turns off, and the switching frequency of the
charge pump becomes 262kHz (CLK = 0). Operating
the charge pump at the lower frequency lowers the qui-
escent current when the charge pump is operational
(the input voltage below 5V).
Vin
C 1P
VOUT
VIN
C LK
C 1N
C 2P
GND
ENA
C 2N
PWM input
CM9156B
Application Information (cont'd)
2006 California Micro Devices Corp. All rights reserved.
04/26/06
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11
CM9156B
PRELIMINARY
Figure 4. High brightness waveforms
The recommended PWM frequency is between 100 Hz
and 20kHz. If a frequency of less then 100 Hz is used,
flicker might be seen in the LEDs. The frequency
should also be greater than the refresh rate of the TFT
display. Higher frequencies will cause a loss of bright-
ness control linearity. In addition, higher frequency can
cause chromaticity shifts because the fixed rise and fall
times of the PWM signal will shift the forward current.
Figure 5. Low brightness waveforms
Camera Flash Application
Many smart phones and PDAs include a digital cam-
era. These cameras typically utilize a WLED flash to
illuminate the picture subject in low light conditions.
The CM9156B is easily adapted to such an application.
Figure 6
is a typical application using the CM9156B as
a WLED flash driver, which is ideal for this application
because it is capable of driving up to 180mA from a Li-
ion battery. The One-shot is used to create a single
pulse of a set duration to the ENA pin of the CM9156B.
The Flash LED modules shown here contain three
matched WLEDs with a common anode and separated
cathodes. The series resistor is chosen based on the
forward drop of the module LEDs (typically 3.3V to
3.8V) and the number of parallel LEDs being driven.
Figure 6. Camera flash application
Layout Guide
The charge pump is rapidly charging and discharging
its external capacitors, so external traces to the capac-
itors should be made as wide and short as allowable to
minimize inductance and high frequency ringing. The
four capacitors should be located as close as practical
to the charge-pump, particularly C1 and C2, which
have the highest dv/dt. Connect ground and power
traces to the capacitors through short, low impedance
paths. Use a solid ground plane, ideally on the back-
side of the PCB, which should carry only ground poten-
tial. Connect the ground-side of Cin, Cout and the chip
GND as close as practical. For best thermal perfor-
mance, the exposed backside lead frame should be
soldered to the PCB.
20 uSec/div
Iin, 200 mA/div
C2N, 5V/div
Vout ripple,
200 mV/div
PWM, 20 kHz,
60% D.C., 5V/div
Vin=3.8V
Iin, 200 mA/div
C2N, 5V/div
Vout ripple,
200 mV/div
PWM, 20 kHz,
10% D.C., 5V/div
20 uSec/div
Vin=3.8V
Vin
C 1P
VOUT
VIN
C LK
C 1N
C 2P
GND
ENA
C 2N
CM9156B
One- shot
Pulse
R
CATHODE
R
CATHODE
Flash
t
Application Information (cont'd)
2006 California Micro Devices Corp. All rights reserved.
12
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
l
Tel: 408.263.3214
l
Fax: 408.263.7846
l
www.cmd.com
04/26/06
CM9156B
PRELIMINARY
TDFN-10 Mechanical Specifications
Dimensions for the CM9156B packaged in a 10-lead
TDFN package are presented below.
For complete information on the TDFN-10, see the Cal-
ifornia Micro Devices TDFN Package Information docu-
ment.
=
This package is compliant with JEDEC standard MO-229, variation
WEED-3 with exception of the "D2" and "E2" dimensions as called
out in the table above.
Package Dimensions for 10-Lead TDFN
PACKAGE DIMENSIONS
Package
TDFN
JEDEC
No.
MO-229 (Var. WEED-3)
=
Leads
10
Dim.
Millimeters
Inches
Min
Nom
Max
Min
Nom
Max
A
0.70
0.75
0.80
0.028
0.030
0.031
A1
0.00
0.02
0.05
0.000
0.001
0.002
A2
0.45
0.55
0.65
0.018
0.022
0.026
A3
0.20
0.008
b
0.18
0.25
0.30
0.007
0.010
0.012
D
3.00
0.118
D2
2.20
2.30
2.40
0.087
0.091
0.094
E
3.00
0.118
E2
1.40
1.50
1.60
0.055
0.060
0.063
e
0.50
0.020
K
1.30
1.50
1.70
0.051
0.060
0.067
L
0.20
0.30
0.40
0.008
0.012
0.016
# per
tube
NA
# per
tape and
reel
3000 pieces
Controlling dimension: millimeters
Mechanical Package Diagrams
BOTTOM VIEW
A
A3
A1
0.10 C
0.08 C
SIDE VIEW
TOP VIEW
b
L
0.10
C A B
M
8X
D2
E2
e
GND PAD
D
E
Pin 1
Marking
4
3
2
1
7
8
9
10
A2
K
7
8
9
10
3
2
1
4
5
6
5
6
Pin 1 ID
C0.35
Mechanical Details
2006 California Micro Devices Corp. All rights reserved.
04/26/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
l
Tel: 408.263.3214
l
Fax: 408.263.7846
l
www.cmd.com
13
CM9156B
PRELIMINARY
MSOP-10 Mechanical Specifications:
The CM9156B is supplied in a 10-pin MSOP. Dimen-
sions are presented below.
For complete information on the MSOP-10, see the
California Micro Devices MSOP Package Information
document.
Package Dimensions for MSOP-10
PACKAGE DIMENSIONS
Package
MSOP
Pins
10
Dimensions
Millimeters
Inches
Min
Max
Min
Max
A
0.75
0.95
0.030
0.038
A1
0.05
0.15
0.002
0.006
B
0.17
0.33
0.007 0.013
C
0.15
0.30
0.006
0.018
D
2.90
3.10
0.114
0.122
E
2.90
3.10
0.114
0.122
e
0.50 BSC
0.0197 BSC
H
4.90 BSC
0.193 BSC
L
0.40
0.70
0.0157
0.0276
# per tape
and reel
4000
Controlling dimension: inches
Mechanical Package Diagrams
E
D
H
1
2
3
4
10
9
8
7
L
END VIEW
C
e
B
A
A1
SEATING
PLANE
SIDE VIEW
TOP VIEW
6
5
Pin 1
Marking
Mechanical Details (cont'd)
PDF 
ZIP