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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： | 3/28页 |
| 文件大小： | 286K |
| 代理商： | TSI206 |
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Datasheet
Tsi206 Primary Side Monitor with Inrush Control
80C7000_MA001_01 April 2006
Tundra Semiconductor Corporation
- 11 -
Table 5 — Pin functions
Pin
Pin name
Description
1
UV
The voltage at this pin is compared to an internal UV reference of 1.25 V. An external
resistor divider is required to prevent the voltage from exceeding 3.3 V. Hysteresis is
applied using an internal current source of 11
μA.
This pin also feeds a second comparator that has a reference of 1.31 V. This
comparator generates a Brownout warning that is transmitted through the PI-Link
interface to the Tsi257.
2
FUSE_H
This pin connects to a resistor network to sense failure of a high-side (battery return)
fuse. Refer to Figure 8 on page 22. Failure detection occurs when the voltage falls
below 0.57 × VBATT. Voltage range is 0 to 3.3 V.
This pin can also be used to measure any voltage between 0.121 V and 2.377 V. The
measured voltage at this pin is transmitted to the secondary side as an 8-bit value,
through the PI-Link interface.
3
FUSE_L
This pin connects to a resistor network to sense failure of a low side (-48 V) fuse. Refer
to Figure 8 on page 22. Failure detection occurs when the voltage rises above 0.57 ×
VBATT. Voltage range is 0 to 3.3 V.
This pin can also be used to measure any voltage between 0.121 V and 2.377 V. The
measured voltage at this pin is transmitted to the secondary side as an 8-bit value,
through the PI-Link interface.
4
VBATT
This pin connects to a resistor divider to measure input voltage (after ORing diodes).
The measured voltage from the ADC is transmitted to the secondary side as a 10-bit
value through the PI-Link interface. Voltage range is 0.121 V to 2.377 V.
This pin also feeds a comparator with a trip level of 2.39 V, to detect overvoltage (OV).
5
SENSE_IN
This pin is normally used to measure the output of the internal current sense amplifier.
The measured voltage is transmitted to the secondary side as an 8-bit value, through
the PI-Link interface. Voltage range is 0.121 V to 2.377 V. This input can also be used
to measure any other voltage within the ADC full scale range.
This pin also feeds a comparator with a trip level of 2.39 V, to detect overcurrent (OC).
6
AUX
This pin can be used to measure any voltage in the range of 0.121 V to 2.377 V.
The measured voltage from the ADC is transmitted to the secondary side through the
PI-Link interface.
7
IC_VSS
Internal connection — connect to VSS
8
ENABLE
Drives optocoupler to brick enable pin
9
IC_ VSS
Internal connection — connect to VSS
10
VCTRL
Driver for the inrush MOSFET control
11
VSS
Connects to -48 V (ground reference for the Tsi206)
12
TX_H
Driver for PI-Link interface to Tsi257
13
VSSO
Connect to pin 24 (VSS)
Connects to -48 V (ground reference for Tsi206)
14
VDDO
Connect to pin 25 (VDD) — 1
μF decoupling required
15
TX_L
Driver for PI-Link interface to Tsi257
16
NC
No connection allowed
(Sheet 1 of 2)
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