For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
Low-Noise, Regulated, Negative
Charge-Pump Power Supplies for GaAsFET Bias
MAX850–MAX853
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
IN
to GND ..................................-0.3V to 10.5V
V
NEGOUT
to GND ...................................................-10.5V to 0.3V
V
IN to
V
NEGOUT
.........................................................-0.3V to 21V
V
OUT
to GND (Note 1) ........................................V
NEGOUT
to 0.3V
SHDN or OSC (pin 4) Voltage to GND.........-0.3V to (V
IN
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
SO (derate 5.88mW/°C above +70°C) ........................471mW
Operating Temperature Ranges
MAX85_ISA ......................................................-25°C to +85°C
MAX85_ESA.....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1:
The output may be shorted to NEGOUT or GND if the package power dissipation is not exceeded. Typical short-circuit
current to GND is 50mA.
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
(+5V
≤
V
IN
≤
+10V, GND = 0V, V
OUT
= -4.1V, R
L
=
∞,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. A 100kHz, 50% duty cycle square
wave between GND and V
IN
is applied to OSC on the MAX852.)
PARAMETER
Supply Voltage Range (Note 2)
SYMBOL
V
IN
MAX850–MAX852, V
FB
= 0V,
R
L
=
∞
or 820Ω, Figure 2a
MAX853, V
CTRL
= 4.1V,
R
L
=
∞
or 820Ω, Figure 2c
CONDITIONS
MIN
5
-4.3
-4.2
-0.5 to -(V
IN
- 1)
V
FBset
I
Q
MAX850/MAX853, V
IN
= 10V, SHDN = 0V
Shutdown Supply Current
I
SHUT
MAX851, SHDN = 2V
MAX852, OSC low
MAX850–MAX852, V
FB
= 0V,
R
L
=
∞
or 820Ω, Figure 2a
V
OUT
Load Regulation
MAX853, V
CTRL
= 4.1V,
R
L
=
∞
or 820Ω, Figure 2c
V
OUT
Ripple
Oscillator Frequency (Note 3)
Input High Voltage
Input Low Voltage
Input Current
Input Capacitance
f
OSC
V
IH
V
IL
I
IN
C
IN
MAX850–MAX852
MAX853
MAX850/MAX851/MAX853, T
A
= +25°C
Pin 4
Pin 4
Pin 4
Pin 4
10
80
2.0
0.5
±1
3
2
1
100
120
8
4
MAX850–MAX852, no load, Figure 2b
-1.32
-1.28
2.0
0.002
2
-1.24
3.0
1
5
1
8
mV/mA
µA
-4.1
TYP
MAX
10
-3.9
V
-4.0
V
V
mA
UNITS
V
Output Voltage
V
OUT
Output Voltage Range
Set Voltage
Supply Current
mVp-p
kHz
V
V
µA
pF
Note 2:
The supply voltage can drop to 4.5V, but the output may no longer sink 5mA at -4.1V.
Note 3:
The MAX852 will operate with a 50kHz to 250kHz square wave of 40% to 60% duty cycle. For best performance, use an
I tried to draw the board myself. The ceramic antenna I used was RFANT3216120A5T, and I drew it according to the data sheet. First, the balun outputted a 50Ω impedance, and then the antenna. But the r...
[color=#000000]1. Pure single crystal semiconductor is also called intrinsic semiconductor, and the number of carriers, free electrons and holes inside it is equal. 2. Emitter follower belongs to comm...
uClinux system transplantation based on FPGA and implementation of web-server[1] I have been working on the operating system on niosII recently, and finally implemented a web-server. I would like to s...
Measure six-phase voltages, set the timer2 to 10ms as the reference for the delay. In addition, the output comparison is 500us. In the output comparison interrupt, the software triggers the ADC to sca...
With the booming electronics industry, vision systems have become a leader in the electronics automation sector. However, the delicate nature of electronic products often affects product yields due...[Details]
Is electromagnetic radiation from electric vehicles harmful to the human body? Recently, the issue of electromagnetic radiation from electric vehicles has garnered widespread attention. However, pu...[Details]
On August 24th, media outlets reported, citing sources, that NavInfo, a listed company on the A-share market, is nearing completion in its acquisition of the intelligent driving c...[Details]
In mobile technology, sensors are the primary input for measured signals and form a component of a sensor system. They include sensitive and transducer elements connected to carriers and circuits. ...[Details]
With the rapid adoption of smart electric vehicles, automotive chips are evolving from auxiliary control units to the foundation of the entire vehicle's intelligence. Their applications extend from...[Details]
Zos Automotive Research Institute released the "2025
Smart Cockpit
Tier 1 Research Report (Domestic Edition)."
This report analyzes the operating conditions of more than a dozen ...[Details]
Robotics
has become
LiDAR
's "second growth curve."
While LiDAR was still battling with its "pure vision" rivals in the automotive field, another field ignited the demand f...[Details]
The all-new MG4 was recently officially announced on the Ministry of Industry and Information Technology's (MIIT) new vehicle announcement. The all-new MG4's semi-solid-state battery version addres...[Details]
Linear motor modules have become the "sweet spot" in various fields due to their advantages such as long stroke, fast speed, high precision, smooth operation and long life. Different models of line...[Details]
On August 21st, BYD announced the launch of its next-generation "Little White Pile" product, the "Lingchong"
charging
pile
, which is now available for general sale. This charging pile feat...[Details]
With the gradual popularization of new energy vehicles in recent years, more and more people have been able to access and purchase electric vehicles. The structure of electric vehicles is composed ...[Details]
The mobile computing market is rapidly evolving, and manufacturers are fiercely competing for market share. A key area of competition is battery life, which encompasses two key aspects: how long th...[Details]
Bearing wear is a common equipment problem in the manufacturing industry. In today's world where controlling production costs is advocated, using repair technology to reduce the scrapping and repla...[Details]
In machine vision systems, light sources play a crucial role. Choosing the right light source is a key factor in determining the success or failure of the entire system. The main purpose of the lig...[Details]
No one expected that after about a day of downtime, four or five thermostats on the control panel would display four 0000s and flash. We knew it was caused by poor contact of the temperature sensin...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
