ZHCSL40M November 2004 – January 2023 TLVH431 , TLVH431A , TLVH431B , TLVH432 , TLVH432A , TLVH432B
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Applications and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
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6.7 TLVH43xB Electrical Characteristics
at 25°C free-air temperature (unless otherwise noted)
| PARAMETER | TEST CONDITIONS | TLVH431B TLVH432B | UNIT | |||||
|---|---|---|---|---|---|---|---|---|
| MIN | TYP | MAX | ||||||
| VREF | Reference voltage | VKA = VREF, IK = 10 mA | TA = 25°C | 1.234 | 1.24 | 1.246 | V | |
| TA = full range, See GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS555372#SLVS5558335 | TLVH431BC | 1.227 | 1.253 | |||||
| TLVH431BI | 1.224 | 1.259 | ||||||
| TLVH431BQ | 1.221 | 1.265 | ||||||
| VREF(dev) | VREF deviation over full temperature range#SLVS5553808 | VKA = VREF, IK = 10 mA, See GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS555372#SLVS5558335 | TLVH431BC | 4 | 12 | mV | ||
| TLVH431BI | 6 | 20 | ||||||
| TLVH431BQ | 11 | 31 | ||||||
 | Ratio of VREF change to cathode voltage change | IK = 10 mA, VK = VREF to 18 V, See GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS5556951 | –1.5 | –2.7 | mV/V | |||
| Iref | Reference terminal current | IK = 10 mA, R1 = 10 kΩ, R2 = open, See GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS5556951 | 0.1 | 0.5 | μA | |||
| Iref(dev) | Iref deviation over full temperature range#SLVS5553808 | IK = 10 mA, R1 = 10 kΩ, R2 = open, See GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS5556951#SLVS5558335 | TLVH431BC | 0.05 | 0.3 | μA | ||
| TLVH431BI | 0.1 | 0.4 | ||||||
| TLVH431BQ | 0.15 | 0.5 | ||||||
| IK(min) | Minimum cathode current for regulation | VKA = VREF, See GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS555372 | 60 | 100 | μA | |||
| IK(off) | Off-state cathode current | VREF = 0, VKA = 18 V, See GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS555227 | 0.02 | 0.1 | μA | |||
| |zKA| | Dynamic impedance#SLVS5556446 | VKA = VREF, f ≤ 1 kHz, IK = 0.1 mA to 70 mA, See GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS555372 | 0.25 | 0.4 | Ω | |||
(1) Full temperature ranges are –40°C to +125°C for TLVH431Q, –40°C to +85°C for TLVH431I, and 0°C to 70°C for TLVH431C.
(2) The deviation parameters VREF(dev) and Iref(dev) are defined as the differences between the maximum and minimum values obtained over the rated temperature range. The average full-range temperature coefficient of the reference input voltage, αVREF, is defined as:
where ΔTA is the rated operating free-air temperature range of the device.
αVREF can be positive or negative, depending on whether minimum VREF or maximum VREF, respectively, occurs at the lower temperature.
where ΔTA is the rated operating free-air temperature range of the device.
αVREF can be positive or negative, depending on whether minimum VREF or maximum VREF, respectively, occurs at the lower temperature.
(3) The dynamic impedance is defined as:
When the device is operating with two external resistors (see GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS5556951), the total dynamic impedance of the circuit is defined as:
When the device is operating with two external resistors (see GUID-6D6DEEB7-088A-4C70-B79F-837EC8E2C832.html#SLVS5556951), the total dynamic impedance of the circuit is defined as: