Current Monitor. HV7802 Datasheet

HV7802 Monitor. Datasheet pdf. Equivalent

Part HV7802
Description High Side Current Monitor
Feature Supertex inc. HV7802 High Side Current Monitor 8V to 450V Configurable Output Features ►►Supply v.
Manufacture Supertex
Datasheet
Download HV7802 Datasheet




HV7802
Supertex inc.
HV7802
High Side Current Monitor
8V to 450V
Configurable Output
Features
►Supply voltage 8V to 450V
Configurable as a current or voltage output device
Maximum sense amplifier offset of 15mV
►Max VSENSE of 500mV
Fast rise and fall time, from 700ns to 2.0µs
Maximum quiescent current of 50µA
Applications
SMPS current monitor
Battery current monitor
Motor control
General Description
The HV7802 high side current monitor IC contains a
transconductance amplifier which translates a high side
current measurement voltage into an output current with
resistor programmable transconductance gain. An optional
second resistor transforms this output current into an output
voltage with an overall voltage gain set by the ratio of the two
resistors.
The measurement voltage typically originates at a current
sense resistor, which is located in a “high side” circuit, for
example a circuit not directly associated with ground.
This monitor IC features a very wide input voltage range,
configurable gain, small size, low component count, low power
consumption, ease of use, and low cost. Offline, battery, and
portable applications can be served equally well due to the
wide input voltage range and the low quiescent current.
Typical Application Circuit
8V to 450V Input
IOUT = VSENSE/RA
VOUT = RB IOUT
GV = RB/RA
VSENSE
ISENSE
RSENSE
RA
RP (optional)
IN RA
LOAD
HV7802
R
GND
OUT
IOUT
VOUT
RB V
Doc.# DSFP-HV7802
A062813
Supertex inc.
www.supertex.com



HV7802
Ordering Information
Part Number
Package Option Packing
HV7802MG-G 8-Lead MSOP 2500/Reel
-G denotes a lead (Pb)-free / RoHS compliant package
Pin Configuration
GND NC OUT NC
876
5
HV7802
Absolute Maximum Ratings
Parameter
Value
VIN, VLOAD
VOUT
VSENSE
ILOAD
Operating ambient temperature
-0.5V to +460V
-0.5V to +10V
-0.5V to +5.0V
±10mA
-40°C to +85°C
Operating junction temperature
-40°C to +125°C
Storage temperature
-65°C to +150°C
Absolute maximum ratings are those values beyond which damage to
the device may occur. Functional operation under these conditions is not
implied. Continuous operation of the device at the absolute rating level
may affect device reliability. All voltages are referenced to device ground.
Notes:
1. Referenced to GND
2. VSENSE = VIN - VLOAD
1 234
IN RA LOAD NC
8-Lead MSOP
(top view)
Product Marking
Top Marking
7802
LLLL
Bottom Marking
YYWW
L = Lot Number
YY = Year Sealed
WW = Week Sealed
= “Green” Packaging
Package may or may not include the following marks: Si or
8-Lead MSOP
Typical Thermal Resistance
Package
θja
8-Lead MSOP
216OC/W
Note:
Thermal testboard per JEDEC JESD51-7
Electrical Characteristics (TA = 25°C unless otherwise specified, VSENSE = VIN - VLOAD, VIN = 8V to 450V)
Sym Parameter
Min Typ Max Units Conditions
Supply
VIN Supply voltage
IQ Quiescent supply current
Input and Output
8.0 - 450 V * ---
- - 50 µA - VIN = 8V to 450V, VSENSE = 0mV
IOUT
VOUT
Ouput current
Output voltage,
RA = RB = 5.000kΩ
Dynamic Characteristics
- - 200 µA - ---
0 - 15
VSENSE = 0mV
79 - 121 mV - VSENSE = 100mV
177 - 223
VSENSE = 200mV
470 - 530
VSENSE = 500mV
tRISE
Output rise time, 10% to 90%
-
-
0.7 -
- 2.0
µs - VSENSE step 5.0mV to 500mV
VSENSE step 0mV to 500mV
tFALL Output fall time, 90% to 10%
* Values apply over the full temperature range.
-
0.7 2.0
µs - VSENSE step 500mV to 0mV
Doc.# DSFP-HV7802
A062813
Supertex inc.
2 www.supertex.com







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