in SOT23-5. MAX835 Datasheet

MAX835 Datasheet PDF, Equivalent


Part Number

MAX835

Description

Micropower / Latching Voltage Monitors in SOT23-5

Manufacture

Maxim

Total Page 8 Pages
PDF Download
Download MAX835 Datasheet


MAX835 Datasheet
19-1157; Rev 0; 12/96
Micropower, Latching Voltage Monitors
in SOT23-5
_______________General Description
The MAX834/MAX835 micropower voltage monitors
contain a 1.204V precision bandgap reference, com-
parator, and latched output in a 5-pin SOT23 package.
Using the latched output prevents deep discharge of
batteries. The MAX834 has an open-drain, N-channel
output driver, while the MAX835 has a push/pull output
driver. Two external resistors set the trip-threshold
voltage.
The MAX834/MAX835 feature a level-sensitive latch,
eliminating the need to add hysteresis to prevent oscil-
lations in battery-load-disconnect applications.
____________________________Features
o Prevents Deep Discharge of Batteries
o Precision ±1.25% Voltage Threshold
o Latched Output (once low, stays low
until cleared)
o SOT23-5 Package
o Low Cost
o Wide Operating Voltage Range, +2.5V to +11V
o <2µA Typical Supply Current
o Open-Drain Output (MAX834)
Push/Pull Output (MAX835)
________________________Applications
Precision Battery Monitor
Load Switching
Battery-Powered Systems
Threshold Detectors
______________Ordering Information
PART
MAX834EUK-T
MAX835EUK-T
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
5 SOT23-5
5 SOT23-5
SOT
TOP MARK
AAAX
AAAY
__________Typical Operating Circuit
CLEAR LATCH
VCC
CLEAR
OUT
MAX834
MAX835
GND
VCC
(MAX834
RL ONLY)
OUT
VCC IN
0.1µF
R1
R2
__________________Pin Configuration
TOP VIEW
CLEAR 1
5 OUT
MAX834
GND 2 MAX835
VCC 3
4 IN
SOT23-5
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

MAX835 Datasheet
Micropower, Latching Voltage Monitors
in SOT23-5
ABSOLUTE MAXIMUM RATINGS
VCC, OUT (MAX834), CLEAR to GND ......................-0.3V to 12V
IN, OUT (MAX835), to GND........................-0.3V to (VCC + 0.3V)
INPUT Current
VCC .................................................................................20mA
IN.....................................................................................10mA
OUT Current.......................................................................-20mA
VCC Rate of Rise .............................................................100V/µs
Continuous Power Dissipation
SOT23-5 (derate 7.1mW/°C above +70°C)..................571mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
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
(VCC = +2.5V to +11V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
Operating Voltage
Range (Note 1)
SYMBOL
VCC
CONDITIONS
MIN
2.5
Supply Current
(Note 2)
Threshold Voltage
Threshold Voltage
Hysteresis
VIN = 1.16V,
OUT = low,
VCC = 3.6V
VCLEAR VCC - 0.25V
TA = +25°C
TA = TMIN to TMAX
or VCLEAR 0.25V
VCC = full operating range
ICC
VIN = 1.25V,
TA = +25°C
OUT = high,
VCC = 3.6V
VCLEAR VCC - 0.25V
TA = TMIN to TMAX
or VCLEAR 0.25V
VCC = full operating range
VTH VIN falling
TA = +25°C
TA = 0°C to +70°C
1.185
1.169
VHYST VCC = 5V, IN = low to high
IN Operating Voltage
Range (Note 1)
VIN
0
IN Leakage Current
(Note 3)
Propagation Delay
IIN VIN = VTH
tPL VCC = 5V, 50mV overdrive
TYP MAX UNITS
11 V
2.4
1.1
1.204
1.204
5
10
15
4
8
13
1.215
1.231
µA
V
6 mV
VCC - 1
V
±3 ±12 nA
80 µs
Glitch Immunity
VCC = 5V, 100mV overdrive
35 µs
OUT Rise Time
OUT Fall Time
Output Leakage
Current (Note 4)
Output Voltage High
Output Voltage Low
tRT VCC = 5V, no load (MAX835 only)
tFT VCC = 5V, no load (MAX834 pull-up = 10k)
ILOUT VIN > VTH(MAX) (MAX834 only)
VOH
VOL
VIN > VTH(MAX), ISOURCE = 500µA (MAX835 only)
VIN < VTH(MIN), ISINK = 500µA
200 µs
480 µs
±1 µA
VCC - 0.5
V
0.4 V
2 _______________________________________________________________________________________


Features Datasheet pdf 19-1157; Rev 0; 12/96 Micropower, Latch ing Voltage Monitors in SOT23-5 _______ ________General Description The MAX834/ MAX835 micropower voltage monitors cont ain a 1.204V precision bandgap referenc e, comparator, and latched output in a 5-pin SOT23 package. Using the latched output prevents deep discharge of batte ries. The MAX834 has an open-drain, N-c hannel output driver, while the MAX835 has a push/pull output driver. Two exte rnal resistors set the trip-threshold v oltage. The MAX834/MAX835 feature a lev el-sensitive latch, eliminating the nee d to add hysteresis to prevent oscillat ions in battery-load-disconnect applica tions. ____________________________Fea tures o Prevents Deep Discharge of Batt eries o Precision ±1.25% Voltage Thres hold o Latched Output (once low, stays low until cleared) o SOT23-5 Package o Low Cost o Wide Operating Voltage Range , +2.5V to +11V o <2µA Typical Supply Current o Open-Drain Output (MAX834) Pu sh/Pull Output (MAX835) MAX834/MAX835 ________________________A.
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