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ZHCSL70D March 2020 – October 2020 TPS63900

PRODUCTION DATA

封裝選項

機械數據 (封裝 | 引腳)

DSK|10
- MPDS326A

散熱焊盤機械數據 (封裝 | 引腳)

DSK|10
- QFND148F

訂購信息

7.3.6 Device Configuration (Resistor-to-Digital Interface)

The device has three configuration pins (CFG1, CFG2, and CFG3) that control its operation. When the device starts up, a resistor-to-digital (R2D) interface reads the values of the configuration resistors on the CFG pins and transfers the setting to an internal configuration register (see Figure 7-12).

CFG1 and CFG2 set V_O(2) level and the input current limit.
CFG3 sets V_O(1) level.

To reduce power consumption, the device reads the value of the resistors connected to the configuration pins during start-up and then disables these pins. Once the device has started to operate, changes to the configuration pins have no effect.

Figure 7-12 Resistor-to-Digital Interface Block Diagram

Table 7-2 summarizes the resistor values needed to configure the device for different input current limit and output voltage (SEL = high) settings. For correct operation, use resistors with a tolerance of ±1% or better and a temperature coefficient of ±200 ppm or better.

Note:

For correct operation, TI recommends that the total RMS error of the configuration resistors—including initial tolerance, temperature drift, and ageing—is less than ±3%.

Table 7-2 Input Current Limit and Output Voltage (SEL = High) Settings

OUTPUT VOLTAGE - V_O(2) (SEL = HIGH)		INPUT CURRENT LIMIT
OUTPUT VOLTAGE - V_O(2) (SEL = HIGH)		UNLIMITED	100 mA	50 mA	25 mA	10 mA	5 mA	2.5 mA	1 mA
1.8 V	R_CFG1	0 Ω
1.8 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
1.9 V	R_CFG1	511 Ω
1.9 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.0 V	R_CFG1	1.15 kΩ
2.0 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.1 V	R_CFG1	1.87 kΩ
2.1 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.2 V	R_CFG1	2.74 kΩ
2.2 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.3 V	R_CFG1	3.83 kΩ
2.3 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.4 V	R_CFG1	5.11 kΩ
2.4 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.5 V	R_CFG1	6.49 kΩ
2.5 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.6 V	R_CFG1	8.25 kΩ
2.6 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.7 V	R_CFG1	10.5 kΩ
2.7 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.8 V	R_CFG1	13.3 kΩ
2.8 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
2.9 V	R_CFG1	16.2 kΩ
2.9 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
3.0 V	R_CFG1	20.5 kΩ
3.0 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
3.1 V	R_CFG1	24.9 kΩ
3.1 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
3.2 V	R_CFG1	30.1 kΩ
3.2 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
3.3 V	R_CFG1	36.5 kΩ
3.3 V	R_CFG2	0 Ω	511 Ω	1.15 kΩ	1.87 kΩ	2.74 kΩ	3.83 kΩ	5.11 kΩ	6.49 kΩ
3.4 V	R_CFG1	0 Ω
3.4 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
3.5 V	R_CFG1	511 Ω
3.5 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
3.6 V	R_CFG1	1.15 kΩ
3.6 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
3.7 V	R_CFG1	1.87 kΩ
3.7 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
3.8 V	R_CFG1	2.74 kΩ
3.8 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
3.9 V	R_CFG1	3.83 kΩ
3.9 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.0 V	R_CFG1	5.11 kΩ
4.0 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.1 V	R_CFG1	6.49 kΩ
4.1 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.2 V	R_CFG1	8.25 kΩ
4.2 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.3 V	R_CFG1	10.5 kΩ
4.3 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.4 V	R_CFG1	13.3 kΩ
4.4 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.5 V	R_CFG1	16.2 kΩ
4.5 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.6 V	R_CFG1	20.5 kΩ
4.6 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.7 V	R_CFG1	24.9 kΩ
4.7 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
4.8 V	R_CFG1	30.1 kΩ
4.8 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ
5.0 V	R_CFG1	36.5 kΩ
5.0 V	R_CFG2	8.25 kΩ	10.5 kΩ	13.3 kΩ	16.2 kΩ	20.5 kΩ	24.9 kΩ	30.1 kΩ	36.5 kΩ

Table 7-3 summarizes the resistor values needed to configure the device for different output voltage (SEL = low) settings. For correct operation, use resistors with a tolerance of ±1% or better and a temperature coefficient of better than ±200 ppm.

Table 7-3 Output Voltage (SEL Pin = Low) Settings

OUTPUT VOLTAGE - V_O(1) (SEL = LOW)	R_CFG3
1.8 V	0 Ω
2.0 V	511 Ω
2.1 V	1.15 kΩ
2.2 V	1.87 kΩ
2.3 V	2.74 kΩ
2.4 V	3.83 kΩ
2.5 V	5.11 kΩ
2.6 V	6.49 kΩ
2.7 V	8.25 kΩ
2.8 V	10.5 kΩ
3.0 V	13.3 kΩ
3.3 V	16.2 kΩ
3.6 V	20.5 kΩ
4.0 V	24.9 kΩ
4.5 V	30.1 kΩ
5.0 V	36.5 kΩ