DG444CY+T [MAXIM]
SPST, 4 Func, 1 Channel, CMOS, PDSO16, SO-16;
| 型号： | DG444CY+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | SPST, 4 Func, 1 Channel, CMOS, PDSO16, SO-16 光电二极管 输出元件 |
| 文件： | 总10页 (文件大小：272K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-4705; Rev 4; 6/04
Improved, Quad, SPST Analog Switches
General Description
New Features
♦ Plug-In Upgrades for Industry-Standard DG444/DG445
Maxim’s redesigned DG444/DG445 analog switches
now feature on-resistance matching (4Ω max) between
switches and guaranteed on-resistance flatness over
the signal range (9Ω max). These low on-resistance
switches conduct equally well in either direction. They
guarantee low charge injection (10pC max), low power
consumption (35µW max), and an electrostatic dis-
charge (ESD) tolerance of 2000V (min) per Method
3015.7. The new design offers lower off-leakage current
over temperature (less than 5nA at +85°C).
♦ Improved R
Match Between Channels (4Ω max)
Over Signal Range (9Ω max)
♦ Improved Charge Injection (10pC max)
ON
♦ Guaranteed R
FLAT(ON)
♦ Improved Off-Leakage Current Over Temperature
(< 5nA at +85°C)
♦ Withstand ESD (2000V min)
per Method 3015.7
Existing Features
The DG444/DG445 are quad, single-pole/single-throw
(SPST) analog switches. The DG444 has four normally
closed switches and the DG445 has four normally open
♦ Low R
(85Ω max)
DS(ON)
♦ Single-Supply Operation +10V to +30V
switches. Switching times are less than 250ns for t
ON
Bipolar-Supply Operation 4.5V to 20V
and less than 70ns for t
. Operation is from a single
OFF
♦ Low Power Consumption (35µW max)
♦ Rail-to-Rail Signal Handling
♦ TTL/CMOS-Logic Compatible
+10V to +30V supply, or bipolar 4.5V to 20V sup-
plies. Maxim’s improved DG444/DG445 continue to be
fabricated with a 44V silicon-gate process.
________________________Applications
Ordering Information
Sample-and-Hold Circuits
Test Equipment
Communication Systems
Battery-Operated Systems
PBX, PABX
PART
DG444CJ
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
Heads-Up Displays
DG444CY
DG444C/D
DG444DJ
DG444DY
Guidance and Control
Systems
Audio Signal Routing
Modems/Faxes
16 Plastic DIP
16 Narrow SO
Military Radios
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
Pin Configurations/Functional Diagrams/Truth Tables
D1
16
IN1
15
IN2
14
D2
13
TOP VIEW
1
2
3
4
5
6
7
8
IN1
D1
S1
V-
16
IN2
15 D2
S2
S1
V-
1
2
3
4
12 S2
11 V+
14
13 V+
DG444
V
GND
S4
12
11
10
9
L
DG444
GND
S4
10
9
V
L
S3
D3
IN3
D4
S3
IN4
5
6
7
8
DIP/SO
D4
IN4
IN3
D3
DG444
LOGIC
SWITCH
Thin QFN
0
1
ON
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Improved, Quad, SPST Analog Switches
ABSOLUTE MAXIMUM RATINGS
(Voltage Referenced to V-)
Continuous Power Dissipation (T = +70°C)
A
V+........................................................................................44V
GND ....................................................................................25V
6-Pin Narrow SO (derate 8.70mW/°C above +70°C) ...696mW
16-Pin PDIP (derate 10.53mW/°C above +70°C)..........842mW
16-Pin Thin QFN (derate 33.3mW/°C above +70°C) ..2667mW
Operating Temperature Ranges
V ..................................................(GND - 0.3V) to (V+ + 0.3V)
L
Digital Inputs V , V (Note 1).......(V- - 2V) to (V+ + 2V) or 30mA
S
D
(whichever occurs first)
Continuous Current (any terminal)......................................30mA
Peak Current, S or D (pulsed at 1ms, 10% duty cycle max) .100mA
DG444C/DG445C................................................0°C to +70°C
DG444D, E/DG445D, E ....................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: Signals on S, D, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current rating.
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.
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = 15V, V- = -15V, V = 5V, GND = 0, V
= 2.4V, V
= 0.8V, T = T
to T
, unless otherwise noted.)
MAX
L
INH
INL
A
MIN
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
SWITCH
Analog Signal Range
V
(Note 3)
-15
+15
85
V
ANALOG
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
50
Drain-Source
On-Resistance
V+ = 13.5V, V- = -13.5V,
R
Ω
DS(ON)
V
=
8.5V, I = -10mA
D
S
= T
to T
100
4
MIN
MAX
MAX
MAX
MAX
MAX
MAX
= +25°C
= T to T
On-Resistance Match
Between Channels (Note 4)
V
=
10V,
D
∆R
Ω
Ω
DS(ON)
I = -10mA
S
5
MIN
= +25°C
= T to T
9
V
= 5V,
D
On-Resistance Flatness (Note 4) R
FLAT(ON)
I = -10mA
S
15
MIN
V+ = 16.5V, V- = -16.5V,
= +25°C
= T to T
-0.50
-5
+0.01
+0.01
+0.08
+0.50
+5
Source Leakage Current
(Note 5)
V
=
15.5V,
nA
nA
nA
I
D
S(OFF)
MIN
V = 15.5V
S
V+ = 16.5V, V- = -16.5V,
= +25°C
= T to T
-0.50
-5
+0.50
+5
Drain Off-Leakage Current
(Note 5)
V
= 15.5V,
I
D
D(OFF)
MIN
V = 15.5V
S
I
V+ = 16.5V, V- = -16.5V,
D(ON)
or
= +25°C
= T to T
-0.50
-10
+0.50
+10
Drain On-Leakage Current
(Note 5)
V
=
15.5V,
D
MIN
I
V = 15.5V
S
S(ON)
INPUT
Input Current with
Input Voltage High
I
V
V
= 2.4V, all others = 0.8V
= 0.8V, all others = 2.4V
-0.5 -0.00001 +0.5
-0.5 -0.00001 +0.5
µA
µA
INH
IN
IN
Input Current with
Input Voltage Low
I
INL
2
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = 15V, V- = -15V, V = 5V, GND = 0, V
= 2.4V, V
= 0.8V, T = T
to T
, unless otherwise noted.)
MAX
L
INH
INL
A
MIN
MIN
TYP
(Note 2)
MAX
PARAMETER
SWITCH
SYMBOL
CONDITIONS
UNITS
Power-Supply Range
V+, V-
I+
4.5
-1
20.0
+1
V
All channels on or off, V+ =
16.5V, V- = -16.5V, V = 0V
IN
or 5V
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
-0.001
-0.0001
-0.001
Positive Supply Current
µA
= T
to T
-5
-1
-5
-1
-5
-1
-5
+5
+1
+5
+1
+5
+1
+5
MIN
MAX
MAX
MAX
MAX
All channels on or off, V+ =
16.5V, V- = -16.5V, V = 0V
IN
or 5V
= +25°C
= T to T
Negative Supply Current
Logic Supply Current
Ground Current
I-
µA
µA
µA
MIN
All channels on or off, V+ =
16.5V, V- = -16.5V, V = 0V
IN
or 5V
= +25°C
= T to T
I
L
MIN
All channels on or off, V+ =
16.5V, V- = -16.5V, V = 0V
IN
or 5V
= +25°C
= T to T
-0.0001
I
GND
MIN
INPUT
Turn-On Time
t
V = 10V, Figure 2
S
T
T
= +25°C
= +25°C
150
90
250
120
ns
ns
ON
A
DG444, V = 10V, Figure 2
S
A
Turn-Off Time
t
OFF
Q
DG445, V = 10V, Figure 2
S
T
T
T
T
= +25°C
= +25°C
= +25°C
= +25°C
110
5
170
10
ns
pC
dB
dB
A
A
A
A
C = 1nF, V
L
= 0,
GEN
Charge Injection (Note 3)
R
= 0Ω, Figure 3
GEN
Off-Isolation Rejection
Ratio (Note 6)
R = 50Ω, C = 5pF,
L
L
OIRR
60
f = 1MHz, Figure 4
R -50Ω, C = 5pF,
L
L
Crosstalk (Note 7)
100
f = 1MHz, Figure 5
f = 1MHz, Figure 6
f = 1MHz, Figure 6
f = 1MHz, Figure 7
f = 1MHz, Figure 7
Source Off-Capacitance
Drain Off-Capacitance
Source On-Capacitance
Drain On-Capacitance
C
T
A
T
A
T
A
T
A
= +25°C
= +25°C
= +25°C
= +25°C
4
4
pF
pF
pF
pF
S(OFF)
C
D(OFF)
C
16
16
S(ON)
C
D(ON)
_______________________________________________________________________________________
3
Improved, Quad, SPST Analog Switches
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = 12V, V- = 0, V = 5V, GND = 0, V
= 2.4V, V
= 0.8V, T = T
to T
, unless otherwise noted.)
MAX
L
INH
INL
A
MIN
MIN
TYP
(Note 2)
MAX
PARAMETER
SWITCH
SYMBOL
CONDITIONS
UNITS
Analog Signal Range
V
(Note 3)
V+ = 10.8V; V = 5.25V;
0
12
V
ANALOG
T
T
= +25°C
100
160
A
Drain-Source
On-Resistance
L
R
Ω
DS(ON)
V = 3V, 8V; I = -10mA
D
S
= T
to T
200
A
MIN
MAX
SUPPLY
Power-Supply Range
V+, V-
I+
10.8
-1
24.0
+1
+5
+1
+5
+1
+5
+1
+5
V
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
+0.001
-0.0001
+0.001
-0.0001
All channels on or off,
= 0V or 5V
Power-Supply Current
Negative Supply Current
Logic Supply Current
Ground Current
µA
V
IN
= T
to T
-5
MIN
MAX
MAX
MAX
MAX
= +25°C
= T to T
-1
All channels on or off,
= 0V or 5V
I-
µA
µA
µA
V
IN
-5
MIN
= +25°C
= T to T
-1
All channels on or off,
= 0V or 5V
I
L
V
IN
-5
MIN
= +25°C
= T to T
-1
All channels on or off,
= 0V or 5V
I
GND
V
IN
-5
MIN
DYNAMIC
Turn-On Time
Turn-Off Time
t
V = 8V, Figure 2
S
T
T
= +25°C
= +25°C
300
60
400
200
ns
ns
ON
A
t
V = 8V, Figure 2
S
OFF
Q
A
C = 1nF, V
= 0,
L
GEN
Charge Injection (Note 3)
T
A
= +25°C
5
10
pC
R
= 0Ω, Figure 3
GEN
Note 2: Typical values are for design aid only, are not guaranteed, and are not subject to production testing. The algebraic convention,
where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet.
Note 3: Guaranteed by design.
Note 4: On-resistance match between channels and flatness are guaranteed only with bipolar-supply operation. Flatness is defined
as the difference between the maximum and the minimum value of on-resistance as measured at the extremes of the speci-
fied analog signal range.
Note 5: Leakage parameters I
, I
, I
, and IS
are 100% tested at the maximum rated hot temperature and guaranteed at +25°C.
S(OFF) D(OFF) D(ON)
(ON)
D
Note 6: Off-Isolation Rejection Ratio = 20log (V /V ), V = output, V = input to off switch.
D
S
S
Note 7: Between any two switches.
__________________________________________Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
SWITCHING THRESHOLD vs.
BIPOLAR SUPPLY VOLTAGE
ON-LEAKAGE CURRENTS
OFF-LEAKAGE CURRENTS
2
1
3.5
3.0
2.5
2.0
1.5
0.5
T
= +125°C
A
0.5
1
T
= +125°C
A
IN HI MIN
0
0
-1
-2
T
= +85°C
A
IN LOW MAX
-0.5
-1
T
= +85°C
A
V+ = 15V
V- = -15V
V+ = 15V
V- = -15V
0
-15
-10
-5
0
5
10
15
-15
-10
-5
0
5
10
15
5
10
15
20
V , V (V)
V , V (V)
BIPOLAR SUPPLY VOLTAGE (V)
S
D
S
D
4
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE vs. V
ON-RESISTANCE vs. V AND
D
ON-RESISTANCE vs. V , BIPOLAR-
D
D
AND UNIPOLAR-SUPPLY VOLTAGE
BIPOLAR-SUPPLY VOLTAGE
SUPPLY VOLTAGE AND TEMPERATURE
150
125
120
90
100
80
V+ = 15V, V- = -15V
V+ = 5V
5V
V+ = 10V
100
T
= +125°C
A
60
10V
15V
V+ = 15V
V+ = 20V
60
30
75
50
T
= +25°C
A
40
20
T
= -55°C
A
20V
25
0
0
0
-15
0
5
10
(V)
15
20
-20
-10
0
10
20
-10
-5
0
5
10
15
V
V
(V)
V
(V)
D
D
D
SWITCHING TIME vs.
BIPOLAR-SUPPLY VOLTAGE
ON-RESISTANCE vs. V , UNIPOLAR-
SWITCHING TIME vs.
UNIPOLAR-SUPPLY VOLTAGE
D
SUPPLY VOLTAGE AND TEMPERATURE
160
120
80
200
150
150
125
V- = 0V
T
= +125°C
A
T
= +25°C
= -40°C
A
100
75
t
ON
t
ON
100
50
T
A
50
t
40
0
OFF
25
t
OFF
V+ = 12V
V- = 0V
0
0
5
10
15
20
0
4
8
12
10
15
20
25
BIPOLAR-SUPPLY VOLTAGE (V)
UNIPOLAR-SUPPLY VOLTAGE (V)
V
(V)
D
CHARGE INJECTION vs.
CHARGE INJECTION vs.
VOLTAGE
V
VOLTAGE
V
D
D
10
20
V+ = 15V
V- = -15V
V+ = 12V
V- = 0V
C = 1nF
L
C
= 1nF
L
0
0
-10
-20
-15
-10
0
10
15
0
5
10
15
V
(V)
V (V)
D
D
_______________________________________________________________________________________
5
Improved, Quad, SPST Analog Switches
ate with 4.5V to 20V bipolar supplies or with a +10V
_____________________Pin Description
to +30V single supply; connect V- to 0V when operating
with a single supply. Also, all device types can operate
PIN
NAME
FUNCTION
with unbalanced supplies such as +24V and -5V. V
L
DIP/SO
THIN QFN
must be connected to +5V to be TTL compatible, or to
V+ for CMOS-logic level inputs. The Typical Operating
Characteristics graphs show typical on-resistance with
20V, 15V, 10V, and 5V supplies. (Switching times
increase by a factor of two or more for operation at 5V.)
Logic Control
Inputs
1, 16, 9, 8
15, 14, 7, 6
IN1–IN4
2, 15, 10, 7
3, 14, 11, 6
16, 13, 8, 5
1, 12, 9 4
D1–D4
S1–S4
Drain Outputs
Source Outputs
Overvoltage Protection
Proper power-supply sequencing is recommended
for all CMOS devices. Do not exceed the absolute
maximum ratings because stresses beyond the list-
ed ratings may cause permanent damage to the
devices. Always sequence V+ on first, followed by
Negative-Supply
Voltage Input
4
5
2
3
V-
GND
VL
Ground
Logic-Supply
Voltage Input
12
10
V
, V-, and logic inputs. If power-supply sequenc-
L
Positive-Supply-
Voltage
Input—Connected
to Substrate
ing is not possible, add two small, external signal
diodes in series with supply pins for overvoltage
protection (Figure 1). Adding diodes reduces the
analog signal range to 1V below V+ and 1V above
V-, but low switch resistance and low leakage char-
acteristics are unaffected. Device operation is
unchanged, and the difference between V+ and V-
should not exceed +44V.
13
—
11
EP
V+
Exposed Pad
Connect Pad to V+
PAD
Applications Information
General Operation
• Switches are open when power is off.
V+
• IN, D, and S should not exceed V+ or V-, even with
the power off.
S
D
• Switch leakage is from each analog switch terminal
to V+ or V-, not to other switch terminals.
V
g
Operation with Supply Voltages
Other than ±±5V
Using supply voltages other than 15V will reduce the
analog signal range. The DG444/DG445 switches oper-
V-
Figure 1. Overvoltage Protection Using External Blocking Diodes
+15V
+5V
LOGIC
INPUT
DG444
DG445
+3V
0V
t < 20ns
t < 20ns
r
V+
f
V
L
SWITCH
INPUT
50%
S
D
V
OUT
IN
C
L
R
t
L
OFF
GND
V-
LOGIC
INPUT
+3V
V
t
OUT
0.8 x V
0.8 x V
OUT
OUT
-15V
SWITCH
OUTPUT
0V
REPEAT TEST FOR CHANNELS 2, 3, AND 4.
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
ON
L
R
L
LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
V
OUT
= V
D
(
)
R + r
L
DS(ON)
Figure 2. Switching Time
_______________________________________________________________________________________
6
Improved, Quad, SPST Analog Switches
∆V
OUT
+5V
+15V
V+
DG444
DG445
V
OUT
V
L
R
GEN
D
S
V
OUT
IN
OFF
OFF
ON
ON
OFF
OFF
DG444
V
GEN
C
L
V-
GND IN
-15V
IN
V
IN
= +3V
Q = ∆V
× C
L
OUT
DG445
Figure 3. Charge Injection
+15V
V+
+5V
+15V
V+
+5V
10nF
10nF
DG444
DG445
DG444
DG445
SIGNAL
GENERATOR 10dBm
SIGNAL
GENERATOR 10dBm
50Ω
V
L
V
L
D
S
S
D
R
= 50Ω
GEN
R
GEN
= 50Ω
IN
IN
0V or +2.4V
IN
D
0V or +2.4V
0V or +2.4V
NC
NETWORK
ANALYZER
S
NETWORK
ANALYZER
GND
V-
GND
V-
10nF
10nF
R
L
R
L
-15V
-15V
Figure 5. Crosstalk
Figure 4. Off-Isolation Rejection Ratio
+15V
10nF
+5V
+15V
V+
+5V
10nF
D
DG444
DG445
DG444
DG445
V+
D
V
L
V
L
CAPACITANCE
METER
IN
IN
f = 1MHz
0V or +2.4V
0V or +2.4V
CAPACITANCE
METER
S
S
V
D
GND
V-
f = 1MHz
10nF
GND
V-
10nF
-15V
-15V
Figure 6. Source/Drain Off-Capacitance
Figure 7. Source/Drain On-Capacitance
_______________________________________________________________________________________
7
Improved, Quad, SPST Analog Switches
Pin Configurations/Functional Diagrams (continued)
TOP VIEW
D1
16
IN1
15
IN2
14
D2
13
1
2
3
4
5
6
7
8
IN1
16 IN2
15 D2
14 S2
13 V+
D1
S1
V-
S1
V-
1
2
3
4
12 S2
11 V+
DG445
12
V
GND
S4
L
DG445
GND
S4
10
9
V
L
11
10
9
S3
D3
IN3
D4
S3
IN4
5
6
7
8
DIP/SO
D4
IN4
IN3
D3
DG445
LOGIC
SWITCH
Thin QFN
0
1
OFF
ON
Ordering Information (continued)
PART
TEMP RANGE
PIN-PACKAGE
16 Thin QFN (5mm
x 5mm)
DG444ETE
-40°C to +85°C
DG445CJ
DG445CY
DG445C/D
DG445DJ
DG445DY
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
16 Plastic DIP
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
16 Thin QFN (5mm
x 5mm)
DG445ETE
-40°C to +85°C
*Contact factory for dice specifications.
8
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
_______________________________________________________________________________________
9
Improved, Quad, SPST Analog Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
D2
D
b
0.10 M
C A B
C
L
D2/2
D/2
k
L
MARKING
XXXXX
E/2
E2/2
C
(NE-1) X
e
L
E2
E
PIN # 1 I.D.
0.35x45∞
DETAIL A
e
PIN # 1
I.D.
(ND-1) X
e
DETAIL B
e
L
C
C
L
L1
L
L
L
e
e
0.10
C
A
0.08
C
C
A3
A1
PACKAGE OUTLINE,
16, 20, 28, 32L THIN QFN, 5x5x0.8mm
1
-DRAWING NOT TO SCALE-
21-0140
G
2
COMMON DIMENSIONS
20L 5x5 28L 5x5
EXPOSED PAD VARIATIONS
D2 E2
MIN. NOM. MAX. MIN. NOM. MAX. ±0.15
DOWN
BONDS
ALLOWED
L
PKG.
SYMBOL MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX.
16L 5x5
32L 5x5
PKG.
CODES
T1655-1
T1655-2
3.00 3.10 3.20 3.00 3.10 3.20
3.00 3.10 3.20 3.00 3.10 3.20
NO
YES
NO
A
**
**
**
**
0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80
0.02 0.05 0.02 0.05 0.02 0.05 0.02 0.05
0.20 REF. 0.20 REF. 0.20 REF. 0.20 REF.
A1
0
0
0
0
T1655N-1 3.00 3.10 3.20 3.00 3.10 3.20
A3
b
T2055-2
T2055-3
T2055-4
T2055-5
3.00 3.10 3.20 3.00 3.10 3.20
3.00 3.10 3.20 3.00 3.10 3.20
3.00 3.10 3.20 3.00 3.10 3.20
NO
YES
NO
Y
0.25 0.30 0.35 0.25 0.30 0.35 0.20 0.25 0.30 0.20 0.25 0.30
4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10
4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10
**
**
D
E
3.15 3.25 3.35 3.15 3.25 3.35 0.40
e
0.80 BSC.
0.25
0.30 0.40 0.50 0.45 0.55 0.65 0.45 0.55 0.65 0.30 0.40 0.50
0.65 BSC.
0.50 BSC.
0.50 BSC.
T2855-1
T2855-2
3.15 3.25 3.35 3.15 3.25 3.35
2.60 2.70 2.80 2.60 2.70 2.80
NO
NO
**
**
**
**
k
-
-
0.25
-
-
0.25
-
-
0.25
-
-
L
T2855-3
T2855-4
3.15 3.25 3.35 3.15 3.25 3.35
2.60 2.70 2.80 2.60 2.70 2.80
2.60 2.70 2.80 2.60 2.70 2.80
3.15 3.25 3.35 3.15 3.25 3.35
YES
YES
NO
L1
-
-
-
-
-
-
-
-
-
-
-
-
N
ND
16
4
20
5
28
7
32
8
T2855-5
T2855-6
T2855-7
T2855-8
**
**
**
NO
YES
4
5
7
8
NE
2.80
3.35
3.35
3.20
2.60 2.70
3.15 3.25
2.60 2.70 2.80
3.15 3.25 3.35
3.15 3.25 3.35
3.00 3.10 3.20
WHHB
WHHC
WHHD-1
WHHD-2
JEDEC
0.40
Y
N
NO
T2855N-1 3.15 3.25
**
**
**
NOTES:
T3255-2
T3255-3
T3255-4
3.00 3.10
1. DIMENSIONING & TOLERANCING CONFORM TO ASME Y14.5M-1994.
2. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES.
3. N IS THE TOTAL NUMBER OF TERMINALS.
3.00 3.10 3.20 3.00 3.10 3.20
3.00 3.10 3.20 3.00 3.10 3.20
YES
NO
**
**
NO
T3255N-1 3.00 3.10 3.20 3.00 3.10 3.20
4. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL
CONFORM TO JESD 95-1 SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE
OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE TERMINAL #1
IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE.
**SEE COMMON DIMENSIONS TABLE
5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25 mm AND 0.30 mm
FROM TERMINAL TIP.
6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY.
7. DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION.
8. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
9. DRAWING CONFORMS TO JEDEC MO220, EXCEPT EXPOSED PAD DIMENSION FOR T2855-1,
T2855-3 AND T2855-6.
10. WARPAGE SHALL NOT EXCEED 0.10 mm.
11. MARKING IS FOR PACKAGE ORIENTATION REFERENCE ONLY.
12. NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY.
PACKAGE OUTLINE,
16, 20, 28, 32L THIN QFN, 5x5x0.8mm
2
-DRAWING NOT TO SCALE-
21-0140
G
2
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
10 ____________________Maxim Integrated Products, ±20 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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