MCP4351.pdf 데이터시트 (총 30 페이지) - 파일 다운로드 MCP4351 데이타시트 다운로드

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MCP434X/436X
7/8-Bit Quad SPI Digital POT with
Non-Volatile Memory
Features
• Quad Resistor Network
• Potentiometer or Rheostat configuration options
• Resistor Network Resolution
- 7-bit: 128 Resistors (129 Taps)
- 8-bit: 256 Resistors (257 Taps)
• RAB Resistances options of:
- 5 kΩ
- 10 kΩ
- 50 kΩ
- 100 kΩ
• Zero Scale to Full Scale Wiper operation
• Low Wiper Resistance: 75 Ω (typical)
• Low Tempco:
- Absolute (Rheostat): 50 ppm typical
(0°C to 70°C)
- Ratiometric (Potentiometer): 15 ppm typical
• Non-volatile Memory
- Automatic Recall of Saved Wiper Setting
- WiperLock™ Technology
• SPI serial interface (10 MHz, modes 0,0 & 1,1)
- High-Speed Read/Writes to wiper registers
- Read/Write to Data EEPROM registers
- Serially enabled EEPROM write protect
• Resistor Network Terminal Disconnect Feature
via Terminal Control (TCON) Register
• Reset input pin
• Write Protect Feature:
- Hardware Write Protect (WP) Control pin
- Software Write Protect (WP) Configuration bit
• Brown-out reset protection (1.5V typical)
• Serial Interface Inactive current (2.5 uA typical)
• High-Voltage Tolerant Digital Inputs: Up to 12.5V
• Supports Split Rail Applications
• Internal weak pull-up on all digital inputs
• Wide Operating Voltage:
- 2.7V to 5.5V - Device Characteristics
Specified
- 1.8V to 5.5V - Device Operation
• Wide Bandwidth (-3 dB) Operation:
- 2 MHz (typical) for 5.0 kΩ device
• Extended temperature range (-40°C to +125°C)
Package Types (Top View)
MCP43X1 Quad Potentiometers
P3A
P3W
P3B
CS
SCK
SDI
VSS
P1B
P1W
P1A
1
2
3
4
5
6
7
8
9
10
20 P2A
19 P2W
18 P2B
17 VDD
16 SDO
15 RESET
14 WP
12 P0B
12 P0W
11 P0A
TSSOP
P3B 1 20 19 18 17 16 15 VDD
14 SDO
CS 2
SCK 3
SDI 4
EP
21
13 RESET
12 WP
VSS 5
11 P0B
6 7 8 9 10
4x4 QFN
MCP43X2 Quad Rheostat
P3W
P3B
CS
SCK
SDI
VSS
P1B
1 14
2 13
3 12
4 11
5 10
69
78
TSSOP
P2W
P2B
VDD
SDO
P0B
P0W
P1W
© 2009 Microchip Technology Inc.
DS22233A-page 1

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MCP434X/436X
Device Block Diagram
VDD
VSS
CS
SCK
SDI
SDO
WP
RESET
Power-up/
Brown-out
Control
SPI Serial
Interface
Module &
Control
Logic
(WiperLock™
Technology)
Memory (16x9)
Wiper0 (V & NV)
Wiper1 (V & NV)
Wiper2 (V & NV)
Wiper3 (V & NV)
TCON0
TCON1
STATUS
Data EEPROM
(5 x 9-bits)
Resistor
Network 0
(Pot 0)
Wiper 0
& TCON0
Register
Resistor
Network 1
(Pot 1)
Wiper 1
& TCON0
Register
Resistor
Network 2
(Pot 2)
Wiper 2
& TCON1
Register
Resistor
Network 3
(Pot 3)
Wiper 3
& TCON1
Register
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P0A
P0W
P0B
P1A
P1W
P1B
P2A
P2W
P2B
P3A
P3W
P3B
Device Features
Device
Wiper
Configuration
Resistance (typical)
RAB Options (kΩ)
Wiper
- RW
(Ω)
VDD
Operating
Range (2)
MCP4331 (3) 4 Potentiometer (1) SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V
MCP4332 (3) 4
Rheostat
SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V
MCP4341 4 Potentiometer (1) SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V
MCP4342 4
Rheostat SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V
MCP4351 (3) 4 Potentiometer (1) SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V
MCP4352 (3) 4
Rheostat
SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V
MCP4361 4 Potentiometer (1) SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V
MCP4362 4
Rheostat SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V
Note 1: Floating either terminal (A or B) allows the device to be used as a Rheostat (variable resistor).
2: Analog characteristics only tested from 2.7V to 5.5V unless otherwise noted.
3: Please check Microchip web site for device release and availability.
DS22233A-page 2
© 2009 Microchip Technology Inc.

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1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
Voltage on VDD with respect to VSS ................ -0.6V to +7.0V
Voltage on CS, SCK, SDI, SDI/SDO, WP, and
RESET with respect to VSS ................................... -0.6V to 12.5V
Voltage on all other pins (PxA, PxW, PxB, and
SDO) with respect to VSS ............................ -0.3V to VDD + 0.3V
Input clamp current, IIK
(VI < 0, VI > VDD, VI > VPP ON HV pins) ......................±20 mA
Output clamp current, IOK
(VO < 0 or VO > VDD) ..................................................±20 mA
Maximum output current sunk by any Output pin
......................................................................................25 mA
Maximum output current sourced by any Output pin
......................................................................................25 mA
Maximum current out of VSS pin .................................100 mA
Maximum current into VDD pin ....................................100 mA
Maximum current into PXA, PXW & PXB pins ............±2.5 mA
Storage temperature ....................................-65°C to +150°C
Ambient temperature with power applied
.....................................................................-40°C to +125°C
Package power dissipation (TA = +50°C, TJ = +150°C)
TSSOP-14................................................................1000 mW
TSSOP-20................................................................ 1110 mW
QFN-20 (4x4) ...........................................................2320 mW
Soldering temperature of leads (10 seconds) ............. +300°C
ESD protection on all pins ................................... ≥ 4 kV (HBM),
.......................................................................... 300V (MM)
Maximum Junction Temperature (TJ) ......................... +150°C
MCP434X/436X
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† Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
© 2009 Microchip Technology Inc.
DS22233A-page 3

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MCP434X/436X
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AC/DC CHARACTERISTICS
DC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
–40°C TA +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
VDD = +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices.
Typical specifications represent values for VDD = 5.5V, TA = +25°C.
Parameters
Sym
Min Typ Max Units
Conditions
Supply Voltage VDD 2.7 — 5.5 V
1.8 — 2.7 V Serial Interface only.
CS, SDI, SDO,
SCK, WP, RESET
pin Voltage Range
VHV
VSS
— 12.5V
V VDD The CS pin will be at one
4.5V of three input levels
VSS
— VDD +
V VDD < (VIL, VIH or VIHH). (Note 6)
8.0V
4.5V
VDD Start Voltage
to ensure Wiper
Reset
VBOR
— 1.65
V RAM retention voltage (VRAM) < VBOR
VDD Rise Rate to
ensure Power-on
Reset
VDDRR
(Note 9)
V/ms
Delay after device
exits the reset
state
(VDD > VBOR)
Supply Current
(Note 10)
TBORD
IDD
— 10 20 µs
— — 450 µA Serial Interface Active,
VDD = 5.5V, CS = VIL, SCK @ 5 MHz,
write all 0’s to volatile Wiper 0 (address
0h)
— — 1 mA EE Write Current,
VDD = 5.5V, CS = VIL, SCK @ 5 MHz,
write all 0’s to non-volatile Wiper 0
(address 2h)
— 2.5 5
— 0.55 1
µA Serial Interface Inactive,
CS = VIH, VDD = 5.5V
mA Serial Interface Active,
VDD = 5.5V, CS = VIHH,
SCK @ 5 MHz,
decrement non-volatile Wiper 0
(address 2h)
Note 1: Resistance is defined as the resistance between terminal A to terminal B.
2: INL and DNL are measured at VW with VA = VDD and VB = VSS.
3: MCP43X1 only.
4: MCP43X2 only, includes VWZSE and VWFSE.
5: Resistor terminals A, W and B’s polarity with respect to each other is not restricted.
6: This specification by design.
7: Non-linearity is affected by wiper resistance (RW), which changes significantly over voltage and
temperature.
8: The MCP43X1 is externally connected to match the configurations of the MCP43X2, and then tested.
9: POR/BOR is not rate dependent.
10: Supply current is independent of current through the resistor network.
DS22233A-page 4
© 2009 Microchip Technology Inc.

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MCP434X/436X
AC/DC CHARACTERISTICS (CONTINUED)
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DC Characteristics
Parameters
Sym
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
–40°C TA +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
VDD = +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices.
Typical specifications represent values for VDD = 5.5V, TA = +25°C.
Min Typ Max Units
Conditions
Resistance
(± 20%)
RAB 4.0 5 6.0 kΩ -502 devices (Note 1)
8.0 10 12.0 kΩ -103 devices (Note 1)
40.0 50 60.0 kΩ -503 devices (Note 1)
80.0 100 120.0 kΩ -104 devices (Note 1)
Resolution
N
257 Taps 8-bit No Missing Codes
129 Taps 7-bit No Missing Codes
Step Resistance
RS
RAB /
(256)
Ω 8-bit Note 6
RAB /
(128)
Ω 7-bit Note 6
Nominal
Resistance Match
(| RABWC -
RABMEAN |) /
RABMEAN
0.2 1.50
0.2 1.25
0.2 1.0
% MCP43X1 devices only
%
%
— 0.2 1.0 %
(| RBWWC -
RBWMEAN |) /
RBWMEAN
0.25 1.75
0.25 1.50
0.25 1.25
% Code = Full Scale
%
%
— 0.25 1.25 %
Wiper Resistance
(Note 3, Note 4)
RW
75 160
Ω VDD = 5.5 V, IW = 2.0 mA, code = 00h
75 300
Ω VDD = 2.7 V, IW = 2.0 mA, code = 00h
Nominal
Resistance
Tempco
ΔRAB/ΔT
— 50 — ppm/°C TA = -20°C to +70°C
— 100 — ppm/°C TA = -40°C to +85°C
— 150 — ppm/°C TA = -40°C to +125°C
Ratiometeric
Tempco
ΔVWB/ΔT — 15 — ppm/°C Code = Midscale (80h or 40h)
Note 1: Resistance is defined as the resistance between terminal A to terminal B.
2: INL and DNL are measured at VW with VA = VDD and VB = VSS.
3: MCP43X1 only.
4: MCP43X2 only, includes VWZSE and VWFSE.
5: Resistor terminals A, W and B’s polarity with respect to each other is not restricted.
6: This specification by design.
7: Non-linearity is affected by wiper resistance (RW), which changes significantly over voltage and
temperature.
8: The MCP43X1 is externally connected to match the configurations of the MCP43X2, and then tested.
9: POR/BOR is not rate dependent.
10: Supply current is independent of current through the resistor network.
© 2009 Microchip Technology Inc.
DS22233A-page 5