HV7800K1-G Supertex, HV7800K1-G Datasheet

MOSFET & Power Driver ICs High Side Current Monitor

HV7800K1-G

Manufacturer Part Number
HV7800K1-G
Description
MOSFET & Power Driver ICs High Side Current Monitor
Manufacturer
Supertex
Datasheet

Specifications of HV7800K1-G

Mounting Style
SMD/SMT
Package / Case
SOT-23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HV7800K1-G
Manufacturer:
TI
Quantity:
928
Part Number:
HV7800K1-G
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Features
Applications
Typical Application Circuit
Supply voltage 8.0 to 450V
Voltage output device
Typical gain 1±1%
Max V
Fast rise and fall times, 700ns to 2.0µs
Maximum quiescent current 50µA
5-Lead SOT-23 Package
SMPS current monitor
Battery current monitor
Motor controls
Telecom
SENSE
500mV
V
OUT
8V to 450V Input
High Side Current Monitor
1235 Bordeaux Drive, Sunnyvale, CA 94089
= V
8.0 to 450V, Voltage Gain of 1
SENSE
GND
IN
HV7800
V
SENSE
General Description
The HV7800 high side current monitor IC transfers a high-
side current measurement voltage to its ground referenced
output with an accurate voltage gain of one. The measurement
voltage typically originates at a current sense resistor which
is located in a “high side” circuit, such as the positive supply
line.
This monitor IC features a very wide input voltage range, high
accuracy of transfer ratio, 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 of the HV7800.
LOAD
OUT
V
V
OUT
I
SENSE
Tel: 408-222-8888
www.supertex.com
HV7800

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HV7800K1-G Summary of contents

Page 1

... HV7800. V SENSE 8V to 450V Input IN LOAD HV7800 = V SENSE GND OUT V ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 I SENSE V OUT ● Tel: 408-222-8888 ● www.supertex.com HV7800 ...

Page 2

... Output rise time, 10% to 90% RISE t Output fall time, 90% to 10% FALL Values of parameters marked with a * apply over the full temperature range Thermal Resistance 5-Lead SOT-23 HV7800K1-G Note: Thermal testboard per JEDEC JESD51-7 Pin Configuration Value -0.5V to +450V -0.5V to +10V -0.5V to +5.0V ±10mA Product Marking -40° ...

Page 3

... V 10V 3. 3. 1000 2000 3000 V SENSE Minimum 500mV SEN SE CURVE REPRESENTS LEVEL OF V WHICH CAUSES A 0.1% DROP IN V -40 - Temperature T = 25°C AMB + 250mV V 1000 ● Tel: 408-222-8888 ● www.supertex.com HV7800 T = 25°C AMB mV 4000 5000 IN OUT °C 100 120 140 ...

Page 4

... Top Curve: V 400V 0 IN Bottom Curve: V 10V Frequency Step Response (from neg 10mV) 8 DIV 500mV SEN SE 200mV − 10mV 3 V OUT 2 200mV DIV Time ● Tel: 408-222-8888 ● www.supertex.com HV7800 400V IN 10V IN °C 100 120 140 T = 25°C AMB 500mV SENSE µ ...

Page 5

... Bordeaux Drive, Sunnyvale, CA 94089 5 to track V within the limit of the offset voltage A SENSE = SENSE returns to ground through R A and R have the same resistance equal resulting in a voltage gain SENSE IN LOAD R ● Tel: 408-222-8888 ● www.supertex.com HV7800 . R and B A SENSE ...

Page 6

... Note that the bias current is nominally zero as the LOAD is a high impedance CMOS input. and at 600mV for a ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 6 is 450V, whether positive or negative. SENSE exceeds the range of -600mV to +5V. SENSE ● Tel: 408-222-8888 ● www.supertex.com HV7800 ...

Page 7

... Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability to the replacement of the devices determined defective due to workmanship ...

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