HP HCPL-7800B, HCPL-7800A, HCPL-7800 Datasheet

H

High CMR Isolation Amplifiers

Technical Data

Features

•15 kV/μs Common-Mode Rejection at VCM = 1000 V*

•Compact, Auto-Insertable Standard 8-pin DIP Package

•4.6 μV/°C Offset Drift vs. Temperature

•0.9 mV Input Offset Voltage

•85 kHz Bandwidth

•0.1% Nonlinearity

•Worldwide Safety Approval: UL 1577 (3750 V rms/1 min), VDE 0884 and CSA

•Advanced Sigma-Delta (ΣΔ) A/D Converter Technology

•Fully Differential Circuit Topology

•1 μm CMOS IC Technology

Applications

•Motor Phase Current Sensing

•General Purpose Current Sensing

•High-Voltage Power Source Voltage Monitoring

*The terms common-mode rejection (CMR) and isolation-mode rejection (IMR) are used interchangeably throughout this data sheet.

HCPL-7800 HCPL-7800A HCPL-7800B

•Switch-Mode Power Supply Signal Isolation

•General Purpose Analog Signal Isolation

•Transducer Isolation

Description

The HCPL-7800 high CMR isolation amplifier provides a unique combination of features ideally suited for motor control circuit designers. The product provides the precision and stability needed to accurately monitor motor current in highnoise motor control environments, providing for smoother control (less “torque ripple”) in various types of motor control applications.

This product paves the way for a smaller, lighter, easier to produce, high noise rejection, low cost solution to motor current sensing. The product can also be used for general analog signal isolation applications requiring high accuracy, stability and linearity under similarly severe noise conditions. For general

applications, we recommend the HCPL-7800 which exhibits a part-to-part gain tolerance of

± 5%. For precision applications, HP offers the HCPL-7800A and HCPL-7800B, each with part-to- part gain tolerances of ± 1%.

The HCPL-7800 utilizes sigmadelta (ΣΔ) analog-to-digital converter technology, chopper stabilized amplifiers, and a fully differential circuit topology fabricated using HP’s 1 μm CMOS IC process. The part also couples our high-efficiency, highspeed AlGaAs LED to a highspeed, noise-shielded detector

Functional Diagram

1	I DD1	I DD2	8
VDD1			VDD2
2	I IN	I O	7
VIN+	+	+	VOUT+
3			6
VIN-	-	-	VOUT-
4			5
GND1			GND2

CMR SHIELD

CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD.

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5965-3592E

using our patented “light-pipe” optocoupler packaging technology.

Together, these features deliver unequaled isolation-mode noise

rejection, as well as excellent offset and gain accuracy and stability over time and temperature. This performance is delivered in a compact, autoinsertable, industry standard 8-

pin DIP package that meets worldwide regulatory safety standards (gull-wing surface mount option #300 also available).

Ordering Information:

HCPL-7800x

No Specifier = ± 5% Gain Tol.; Mean Gain Value = 8.00

A = ± 1% Gain Tol.; Mean Gain Value = 7.93

B = ± 1% Gain Tol.; Mean Gain Value = 8.07

Option yyy

300 = Gull Wing Surface Mount Lead Option

500 = Tape/Reel Package Option (1 k min.)

Option datasheets available. Contact your Hewlett-Packard sales representative or authorized distributor for information.

Package Outline Drawings

Standard DIP Package

	9.40 (0.370)
	9.90 (0.390)
8	7	6	5
			TYPE NUMBER*		0.20 (0.008)
	HP 7800		DATE CODE	6.10 (0.240)	0.33 (0.013)
				6.60 (0.260)
	YYWW			7.36 (0.290)	5° TYP.
				7.88 (0.310)
PIN ONE 1	2	3	4
1.19 (0.047) MAX.			1.78 (0.070) MAX.
			4.70 (0.185) MAX.	PIN DIAGRAM

PIN ONE

0.76 (0.030)

1.24 (0.049)

0.51 (0.020) MIN.

2.92 (0.115) MIN.

0.65 (0.025) MAX.

2.28 (0.090)

2.80 (0.110)

1	VDD1	VDD2	8
2	VIN+	VOUT+	7
3	VIN–	VOUT–	6
4	GND1	GND2	5

DIMENSIONS IN MILLIMETERS AND (INCHES).	* TYPE NUMBER FOR: HCPL-7800 = 7800
	HCPL-7800A = 7800A
	HCPL-7800B = 7800B

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Gull Wing Surface Mount Option 300*

																																					PIN LOCATION (FOR REFERENCE ONLY)
										9.65 ± 0.25																																								1.02 (0.040)
							(0.380 ± 0.010)
																																																									1.19 (0.047)
						8					7								6								5
																																																																						4.83 TYP.
													HP 7800																																																							(0.190)
																																	6.350 ± 0.25
													YYWW																				(0.250 ± 0.010)																																			9.65 ± 0.25
																																																																				(0.380 ± 0.010)
MOLDED					1		2										3									4
																																																																												0.380 (0.015)
																																				1.19 (0.047)																																								0.635 (0.025)
																																				1.78 (0.070)
																										1.780																				9.65 ± 0.25
1.19																															(0.070)																							(0.380 ± 0.010)
																																	MAX.																					7.62 ± 0.25
(0.047)
																																																			(0.300 ± 0.010)
MAX.
																																																																						0.20 (0.008)
																																	4.19			MAX.																																		0.33 (0.013)
1.080 ± 0.320																																	(0.165)
																																																0.635 ± 0.25
(0.043 ± 0.013)																																																						(0.025 ± 0.010)
							2.540																													0.51 ± 0.130																																					12° NOM.
																																				(0.020 ± 0.005)
					(0.100)
								BSC
DIMENSIONS IN MILLIMETERS (INCHES).
TOLERANCES (UNLESS OTHERWISE SPECIFIED): xx.xx = 0.01																																																																	LEAD COPLANARITY
																																							xx.xxx = 0.005																														MAXIMUM: 0.102 (0.004)

* REFER TO OPTION 300 DATA SHEET FOR MORE INFORMATION.

Maximum Solder Reflow Thermal Profile

TEMPERATURE – °C

260

240

T = 145°C, 1°C/SEC

220

T = 115°C, 0.3°C/SEC

200

180

160

140

120

100

80

T = 100°C, 1.5°C/SEC

60

40

20

0

0	1	2	3	4	5	6	7	8	9	10	11	12
					TIME – MINUTES

(NOTE: USE OF NON-CHLORINE ACTIVATED FLUXES IS RECOMMENDED.)

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Regulatory Information

The HCPL-7800 has been approved by the following organizations:

UL	CSA	VDE
Recognized under UL 1577,	Approved under CSA Component	Approved according to VDE
Component Recognition	Acceptance Notice #5, File CA	0884/06.92.
Program, File E55361.	88324.

Insulation and Safety Related Specifications

Parameter	Symbol	Value	Units	Conditions
Min. External Air Gap	L(IO1)	7.4	mm	Measured from input terminals to output terminals,
(External Clearance)				shortest distance through air
Min. External Tracking	L(IO2)	8.0	mm	Measured from input terminals to output terminals,
Path (External Creepage)				shortest distance path along body
Min. Internal Plastic Gap		0.5	mm	Through insulation distance, conductor to conductor,
(Internal Clearance)				usually the direct distance between the photoemitter
				and photodetector inside the optocoupler cavity
Tracking Resistance	CTI	175	V	DIN IEC 112/VDE 0303 Part 1
(Comparative Tracking
Index)
Isolation Group		III a		Material Group (DIN VDE 0110, 1/89, Table 1)

Option 300 – surface mount classification is Class A in accordance with CECC 00802.

VDE 0884 (06.92) Insulation Characteristics

Description		Symbol	Characteristic	Unit
Installation classification per DIN VDE 0110, Table 1
for rated mains voltage £	300 V rms		I-IV
for rated mains voltage £	600 V rms		I-III
Climatic Classification			40/100/21
Pollution Degree (DIN VDE 0110, Table 1)*			2
Maximum Working Insulation Voltage		VIORM	848	V peak
Input to Output Test Voltage, Method b**		VPR	1591	V peak
VPR = 1.875 x VIORM, Production test with tp = 1 sec,
Partial discharge < 5 pC
Input to Output Test Voltage, Method a**		VPR	1273	V peak
VPR = 1.5 x VIORM, Type and sample test with tp = 60 sec,
Partial discharge < 5 pC
Highest Allowable Overvoltage**
(Transient Overvoltage tTR = 10 sec)		VTR	6000	V peak
Safety-limiting values (Maximum values allowed in the event
of a failure, also see Figure 27)				°C
Case Temperature		TS	175
Input Power		PS,Input	80	mW
Output Power		PS,Output	250	mW
Insulation Resistance at TS, VIO = 500 V		RS	³ 1x1012	W

*This part may also be used in Pollution Degree 3 environments where the rated mains voltage is ≤ 300 V rms (per DIN VDE 0110). **Refer to the front of the optocoupler section of the current catalog for a more detailed description of VDE 0884 and other product safety requirements.

Note: Optocouplers providing safe electrical separation per VDE 0884 do so only within the safety-limiting values to which they are qualified. Protective cut-out switches must be used to ensure that the safety limits are not exceeded.

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Absolute Maximum Ratings

Parameter	Symbol	Min.	Max.	Unit	Note
Storage Temperature	TS	-55	125	°C
Ambient Operating Temperature	TA	- 40	100	°C
Supply Voltages	VDD1, VDD2	0.0	5.5	V
Steady-State Input Voltage	VIN+, VIN-	-2.0	VDD1 +0.5	V
Two Second Transient Input Voltage		-6.0
Output Voltages	VOUT+, VOUT-	-0.5	VDD2 +0.5	V
Lead Solder Temperature	TLS		260	°C	1
(1.6 mm below seating plane, 10 sec.)
Reflow Temperature Profile		See Package Outline Drawings Section

Recommended Operating Conditions

Parameter	Symbol	Min.	Max.	Unit	Note
Ambient Operating Temperature	TA	-40	85	°C	2
Supply Voltages	VDD1, VDD2	4.5	5.5	V	3
Input Voltage	VIN+, VIN-	-200	200	mV	4
Output Current	|IO|		1	mA	5

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DC Electrical Specifications

All specifications and figures are at the nominal operating condition of VIN+ = 0 V, VIN- = 0 V, TA = 25°C, VDD1 = 5.0 V, and VDD2 = 5.0 V, unless otherwise noted.

Parameter	Symbol	Min.	Typ.	Max.	Unit	Test Conditions	Fig.	Note
Input Offset Voltage	VOS	-1.8	-0.9	0.0	mV		1
Input Offset Drift vs.	dVOS/dT		-2.1		μV/°C		1, 2	6
Temperature
Abs. Value of Input	|dVOS/dT|		4.6		μV/°C		1	7
Offset Drift vs. Temperature
Input Offset Drift vs. VDD1	dVOS/dVDD1		30		μV/V		1, 3	8
Input Offset Drift vs. VDD2	dVOS/dVDD2		-40		μV/V		1, 4	9
Gain (± 5% Tol.)	G	7.61	8.00	8.40		-200 mV < VIN+ < 200 mV	1, 5	10
Gain - A Version (± 1% Tol.)	GA	7.85	7.93	8.01
Gain - B Version (± 1% Tol.)	GB	7.99	8.07	8.15
Gain Drift vs. Temperature	dG/dT		0.001		%/°C		5, 6	11
Abs. Value of Gain Drift vs.	|dG/dT|		0.001		%/°C		5	12
Temperature
Gain Drift vs. VDD1	dG/dVDD1		0.21		%/V		5, 7	13
Gain Drift vs. VDD2	dG/dVDD2		-0.06		%/V		5, 8	14
200 mV Nonlinearity	NL200		0.2	0.35	%		5, 9	15
200 mV Nonlinearity Drift	dNL200/dT		-0.001		% pts/°C		5, 10	16
vs. Temperature
200 mV Nonlinearity Drift	dNL200/dVDD1		-0.005		% pts/V		5, 11	17
vs. VDD1
200 mV Nonlinearity Drift	dNL200/dVDD2		-0.007		% pts/V		5, 12	18
vs. VDD2
100 mV Nonlinearity	NL100		0.1	0.25	%	-100 mV< VIN+ < 100 mV	5, 13	19
Maximum Input Voltage	|VIN+|max		300		mV		14
Before Output Clipping
Average Input Bias Current	IIN		-670		nA		15, 16	20
Input Bias Current	dIIN/dT		3		nA/°C
Temperature Coefficient
Average Input Resistance	RIN		530		kΩ		15	20
Input Resistance	dRIN/dT		0.38		%/°C
Temperature Coefficient
Input DC Common-Mode	CMRRIN		72		dB			21
Rejection Ratio
Output Resistance	RO		11		Ω			5
Output Resistance	dRO/dT		0.6		%/°C
Temperature Coefficient
Output Low Voltage	VOL		1.18		V	|VIN+| = 500 mV	14	22
Output High Voltage	VOH		3.61		V	IOUT+ = 0 A, IOUT– = 0 A
Output Common-Mode	VOCM	2.20	2.39	2.60	V	-40°C < TA < 85°C	14
Voltage						4.5 V < VDD1 < 5.5 V
							17	23
Input Supply Current	IDD1		10.7	15.5	mA
Output Supply Current	IDD2		11.6	14.5	mA	VIN+ = 200 mV,	18	24
						-40°C < TA < 85°C
						4.5 V < VDD2 < 5.5 V
Output Short-Circuit	|IOSC|		9.3		mA	VOUT = 0 V or VDD2		25
Current

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