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参数资料
| 型号： | TSI206 |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY MANAGEMENT CKT, PQFP32 |
| 封装： | LQFP-32 |
| 文件页数： | 25/28页 |
| 文件大小： | 286K |
| 代理商： | TSI206 |
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Tsi206 Primary Side Monitor with Inrush Control
Datasheet
- 6 -
Tundra Semiconductor Corporation
80C7000_MA001_01 April 2006
ADC zero and full-scale definition
The ADC conversion is derived by dividing the full
scale minus the zero-scale voltage by 1024. The
first code point spans of an LSB10.
For 10-bit values, the equation is:
V = (VZS10 + READ × LSB10) ± LSB10/2
= (121 + READ × 2.2) mV ± 1.1 mV
where READ is the value in the register.
For 8-bit values, the equation is:
V = (VZS8 + READ × LSB8) ± LSB8/2
= (119.9 + READ × 8.8) mV ± 4.4 mV
Input voltage range for
ADC
VINLH
No ADC saturation
0.121
—
2.377
V
Zero scale voltage
VZS10
Refer to Figure 3 on page 7
—
0.121
—
V
VZS8
Refer to Figure 3 on page 7
—
0.119
—
V
Input resolution (LSB)
LSB10
—2.2
—
mV
Input resolution (LSB)
LSB8
—8.8
—
mV
Input capacitance
CIN
—1.24
—
pF
Total voltage conversion
accuracy of ADC
VACC1
——
6.6
mV
Supply voltage monitor (voltage at input rail)
Supply voltage monitor
resolution
(effective LSB at 48 V)
VLSB2
Assumes 33:1 resistor
divider ratio
(R4:R10 in Figure 1)
—
72.6
mV
Supply voltage monitor
accuracy (at 48 V)
VACC2
Assumes 33:1 resistor
divider ratio
(R4:R10 in Figure 1)
—
218
mV
Fuse monitoring
FUSE_L fuse failure
detection threshold
VFUSE_L
Voltage at pin FUSE_L
increasing
Threshold = voltage at
VBATT pin × 0.57, ± 10 mV
V
FUSE_H fuse failure
detection threshold
VFUSE_H
Voltage at pin FUSE_H
decreasing
Threshold = voltage at
VBATT pin × 0.57, ± 10 mV
V
Voltage comparator (AUX input)
Comparator threshold
VAUXCOMP
1.24
1.25
1.26
V
1. Tighter tolerance for UV shutdown is available. Contact Tundra Semiconductor for details.
Table 3 — DC characteristics (Continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
(Sheet 4 of 4)
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