MAX1822ESA+ Maxim Integrated Products, MAX1822ESA+ Datasheet

IC POWER SUPPLY HI SIDE 8-SOIC

MAX1822ESA+

Manufacturer Part Number
MAX1822ESA+
Description
IC POWER SUPPLY HI SIDE 8-SOIC
Manufacturer
Maxim Integrated Products
Type
Switched Capacitor (Charge Pump)r
Datasheet
1.MAX1822ESAT.pdf (10 pages)

Specifications of MAX1822ESA+

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
14.5 ~ 27.5 V
Current - Output
25mA
Frequency - Switching
90kHz
Voltage - Input
3.5 ~ 16.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Power - Output
471mW
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Maximum Power Dissipation
471 mW
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1822 high-side supply, using a regulated
charge pump, generates a regulated output voltage
11V greater than the input supply voltage to power
high-side switching and control circuits. The MAX1822
allows low-resistance N-channel MOSFETs (FETs) to be
used in circuits that normally require costly, less effi-
cient P-channel FETs and PNP transistors. The high-
side output also eliminates the need for logic FETs in
+5V and other low-voltage switching circuits.
A +3.5V to +16.5V input supply range and a typical qui-
escent current of only 150µA make the MAX1822 ideal
for a wide range of line- and battery-powered switching
and control applications where efficiency is crucial.
Also provided is a logic-level power-ready output (PR)
to indicate when the high-side voltage reaches the
proper level.
The MAX1822 comes in an 8-pin SO package and
requires three inexpensive external capacitors. The
MAX1822 is a pin-for-pin replacement to the MAX622.
________________________Applications
19-1892; Rev 0; 1/01
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
_______________General Description
CERAMIC
High-Side Power Control with N-Channel FETs
Low-Dropout Voltage Regulators
Power Switching from Low Supply Voltages
H-Switches
Stepper Motor Drivers
Battery-Load Management
Portable Computers
0.1µF
C1
C2
Typical Operating Circuit
1
7
6
2
________________________________________________________________ Maxim Integrated Products
C1+
C1-
C2+
C2-
+3.5V TO +16.5V
MAX1822
GND
8
V
CC
4
V
OUT
PR
5
3
+12.5V TO +27.5V
C3
High-Side Power Supply
____________________________Features
o +3.5V to +16.5V Operating Supply Voltage Range
o Output Voltage Regulated to V
o 150µA (typ) Quiescent Current
o Power-Ready Output
MAX1822ESA
TOP VIEW
PART
GND
C1+
C2-
PR
1
2
4
3
TEMP. RANGE
-40°C to +85°C
Ordering Information
MAX1822
SO
Pin Configuration
CC
6
8
7
5
8 SO
PIN-PACKAGE
V
C1-
C2+
V
+ 11V (typ)
CC
OUT
1

Related parts for MAX1822ESA+

Image
Part Number
Description
Manufacturer
Datasheet
Request R
MAX7528KCWP
Part Number:
MAX7528KCWP
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX7528KCWP.pdf (12 pages)
MAX3261CCJ
Part Number:
MAX3261CCJ
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX3261CCJ.pdf (12 pages)
MAX3263CAG
Part Number:
MAX3263CAG
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX3263CAG.pdf (12 pages)
MAX8809AETL+
Part Number:
MAX8809AETL+
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX8809AETL.pdf (50 pages)
MAX1535CETJ+T
Part Number:
MAX1535CETJ+T
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX1535CETJT.pdf (39 pages)
DS2741N+
Part Number:
DS2741N+
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
MAX13450EAUD+T
Part Number:
MAX13450EAUD+T
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
MAX13451EAUD+T
Part Number:
MAX13451EAUD+T
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
MAX17497BATE+
Part Number:
MAX17497BATE+
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
MAX17502FATB+T
Part Number:
MAX17502FATB+T
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products
MAX1978EVKIT
Part Number:
MAX1978EVKIT
Description:
Integrated Temperature Controller f
Manufacturer:
Maxim Integrated Products
MAX2606EUT+
Part Number:
MAX2606EUT+
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
MAX2608EUT+
Part Number:
MAX2608EUT+
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
MAX2831EVKIT+
Part Number:
MAX2831EVKIT+
Description:
EVALUATION KIT/2.4GHZ TO 2.5GHZ 802.11G/B RF TRANSCEIVER WITH INTEGRATED PA
Manufacturer:
Maxim Integrated Products
MAX4888CETI+
Part Number:
MAX4888CETI+
Description:
QFN/E/DUAL PCIE/SATA HIGH SPEED SWITCH WITH INTEGRATED BIAS RESISTOR
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX4888BETI.pdf (10 pages)

MAX1822ESA+ Summary of contents

Page 1

... MAX1822 C2 C2- GND 4 ________________________________________________________________ Maxim Integrated Products For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. High-Side Power Supply ____________________________Features o +3.5V to +16.5V Operating Supply Voltage Range o Output Voltage Regulated 150µA (typ) Quiescent Current ...

Page 2

High-Side Power Supply ABSOLUTE MAXIMUM RATINGS V ......................................................................................+17V CC V ....................................................................................+30V OUT I ...................……………………………………………….25mA OUT Continuous Total Power Dissipation (T = +70°C) A 8-pin SO (derate 5.88mW/°C above +70°C)...............471mW Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent ...

Page 3

Operating Characteristics MAX1822 SUPPLY CURRENT vs. C3 CAPACITOR VALUE 400 C* = 0.01µF 350 C* = 0.033µF 300 C* = 0.022µF 250 200 150 100 C* = 0.1µ CAPACITOR VALUE (µF) ...

Page 4

High-Side Power Supply MAX1822 OUTPUT VOLTAGE RIPPLE vs. RESERVOIR CAPACITOR C3 200 T = +25°C A 180 160 V = +16.5V CC 140 I = 1mA OUT 0.01µF 120 100 ...

Page 5

INT TWO-STAGE CHARGE PUMP (SWITCHES SHOWN IN REFRESH MODE) Figure 1. MAX1822 Block Diagram Detailed Description Charge-Pump Operation The MAX1822 is a multistage charge-pump power sup- ply. Although ...

Page 6

High-Side Power Supply V SUPPLY 1000µF C1+ LOW ESR C2 0.047µ MAX1822 C2+ C2 0.047µF 2 C2- Figure 2. MAX1822 Quiescent Supply-Current Test Circuit + OUT C1+ C2 ...

Page 7

0.047µF OUT 7 C1- MAX1822 6 C2+ C2 0.047µF 2 C2- GND 4 REVERSE FORWARD Figure 4. H-Bridge Motor Controller internal switches during charge-pump cycles. This may damage the device. Output Protection ...

Page 8

High-Side Power Supply 4-CHANNEL LOAD SWITCH—NO PULLUP RESISTORS +3.5V TO +16. 1µ C1+ C1 0.01µF 7 C1- MAX1822 6 C2+ C2 0.01µF 2 C2- GND 4 NOTE 1: TRANSISTOR TYPE DEPENDS ON LOAD-CURRENT REQUIREMENTS. NOTE ...

Page 9

C5 0.1µ C1 0.01µF 7 MAX1822 C1- 6 C2+ C2 0.01µF 2 C2- GND 4 ENABLE/SHUTDOWN D2 1N914 Figure 6. Ultra-Low Dropout Positive Voltage Regulator with Logic-Controlled Enable/ Shutdown . Chip Information TRANSISTOR COUNT: 158 ...

Page 10

... 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, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

Related keywords