ZHCSLU8A September 2020 – October 2020 TPS51397A
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
6.6 Typical Characteristics
TJ = -40°C to 125°C, VIN = 12 V, unless otherwise noted.
Figure 6-1 Supply Current vs Junction
Temperature
Figure 6-3 Feedback Voltage vs
Junction Temperature
Figure 6-5 Enable Off Voltage vs
Junction Temperature
Figure 6-7 Low-Side
RDS(on) vs Junction Temperature
Figure 6-9 UVP Threshold vs Junction
Temperature
Figure 6-11 Valley Current Limit vs
Junction Temperature
Figure 6-13 Soft-Start Time vs
Junction Temperature
Figure 6-15 Efficiency vs Load Current, FSW = 500 kHz, Eco-mode
Figure 6-17 Efficiency vs Load Current, FSW = 500 kHz, OOA
Figure 6-19 Switching Frequency vs Load Current, FSW = 500 kHz, Eco-mode
Figure 6-21 Switching Frequency vs Load Current,
FSW = 500 kHz, OOA
Figure 6-2 Shutdown Current vs
Junction Temperature
Figure 6-4 Enable On Voltage vs
Junction Temperature
Figure 6-6 High-Side RDS(on)
vs Junction Temperature
Figure 6-8 OVP Threshold vs Junction
Temperature
Figure 6-10 Discharge Resistor vs
Junction Temperature
Figure 6-12 Negative Current Limit vs
Junction Temperature
Figure 6-14 OOA Period vs Junction
Temperature
Figure 6-16 Efficiency vs Load Current, FSW = 800 kHz, Eco-mode
Figure 6-18 Efficiency vs Load Current, FSW =
800 kHz, OOA
Figure 6-20 Switching Frequency vs Load Current,
FSW = 800 kHz, Eco-mode
Figure 6-22 Switching Frequency vs Load Current,
FSW = 800k Hz, OOA