
LTZ1000/LTZ1000A
2
1000afc
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Heater to Substrate ...................................................35V
Collector Emitter Breakdown Q1 ...............................15V
Collector Emitter Breakdown Q2 ...............................35V
Emitter Base Reverse Bias ..........................................2V
Operating Temperature Range..........–55°C ≤ TA ≤ 125°C
Storage Temperature Range.............–65°C ≤ TA ≤ 150°C
Substrate Forward Bias............................................0.1V
(Note 1)
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Zener Voltage
lZ = 5mA, (VZ + VBEQ1) IQ1 = 100μA
lZ = 1mA, (VZ + VBEQ1) IQ1 = 100μA
7.0
6.9
7.2
7.15
7.5
7.45
V
Zener Change with Current
1mA ≤ IZ < 5mA
80
240
mV
Zener Leakage Current
VZ = 5V
20
200
μA
Zener Noise
lZ = 5mA, 0.1Hz < f < 10Hz
1Q1 = 100μA
1.2
2
μVP-P
Heater Resistance
IL ≤ 100μA
200
300
420
Ω
Heater Breakdown Voltage
35
V
Transistor Q1 Breakdown
IC = 10μA, LVCEO
15
20
V
Transistor Q2 Breakdown
IC = 10μA, LVCEO
35
50
V
Q1, Q2 Current Gain
IC = 100μA
80
200
450
Thermal Resistance
LTZ1000
Time = 5 Minutes
LTZ1000A
Time = 5 Minutes
80
400
°C/W
Long-Term Stability
T = 65°C
2
μV√kHr
(Note 2)
Note 2: All testing is done at 25°C. Pulse testing is used for LTZ1000A to
minimize temperature rise during testing. LTZ1000 and LTZ1000A devices
are QA tested at –55°C and 125°C.
PIN CONFIGURATION
BOTTOM VIEW
H8 PACKAGE
TO-5 METAL CAN
1
7V
Q1
Q2
3
5
4
8
7
62
TJMAX = 80°C, θJA = 400°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTZ1000ACH#PBF
LTZ1000ACH#TRPBF
8-Lead TO-5 Metal Can (.200 Inch PCD)
–55°C to 125°C
LTZ1000CH#PBF
LTZ1000CH#TRPBF
8-Lead TO-5 Metal Can (.200 Inch PCD)
–55°C to 125°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTZ1000ACH
LTZ1000ACH#TR
8-Lead TO-5 Metal Can (.200 Inch PCD)
–55°C to 125°C
LTZ1000CH
LTZ1000CH#TR
8-Lead TO-5 Metal Can (.200 Inch PCD)
–55°C to 125°C
Consult LTC Marketing for parts specied with wider operating temperature ranges.