TPS61088 5/9/12V high-power lithium battery boost DC-DC power module 10A current 1MHz frequency

This module adopts the TI TPS61088 power chip solution, with stable performance, small ripples, with 10A switching current capabilities, the switching frequency is about 1MHz, the module provides two working modes of PWM and PFM, users can adjust itself (default PFM low power consumption model shipment), Elective high -quality (capacitors (adjustable versions) and large current inductances, the high -quality components used further improve the performance and stability of the module.

The module still has the stability that most of the boost modules cannot be comparable in the output high.A good choice, the same voltage to 9V/12V voltage is not a problem. The output power HIGHEST can reach 30W, 9V, 12V voltage output. When the output of large currents is output, the user only needs to do a good amount of heat dissipation to get a good bandLoad output ripples.

If there is no special explanation, the following parameters are tested under the PWM mode (recommended work mode).

Module type: switching power supply, boosting power supply

Input voltage: DC2.7-12V

Input current: 9A (MAX)

Output current: Decided by input, refer to follow -up instructions calculation

Output voltage: DC4.5-12.6V

Output power: 30W (MAX), required heat dissipation measures

Switch frequency: about 1MHz

Work mode: PWM /PFM

The following parameters are measured when the voltage value is adjusted to 9V in PWM mode, for users to refer to static current: 15-65mA (PWM mode)

200UA-600UA (PFM mode)

Output lines: 30mvpp (empty load)

Output efficiency: 92%(MAX)

Adjustment method: potentiometer, counterclockwise

Jump pad selection, 5/9/12V, ADJ pad can be adjusted by yourself

Module interface: KF301-5.08/pad

Module weight: 10g/5.4g

Module size: 40x22mm (manual measurement, existence deviation)

Vin: Power input Positive Election, 2.7-12V

GND: Input and output negative electrode, shared

Vout: Power output positive electrode, 4.5-12.6V

Jump pad: Short connection to enable the corresponding voltage. If all jump pads are not short, the ADJ resistance is used to adjust the voltage. Three disks and ADJ resistors can only choose one way to work.

The PWM short pad on the end of the output terminal is PWM mode, disconnecting to the PFM mode, the default is PFM mode, and users can adjust themselves.For the voltage version, the default PFM mode can be adjusted to the PWM mode in the PNIM pads welding 0Q resistance or other methods.

1. The module is a boosting module. Therefore, the output voltage adjusted by the module needs to be larger than the input voltage. After testing, the recommended output voltage is more than 2V higher than the input voltage, otherwise it is prone to the output voltage higher than the set value.

2. The module MAX switch current is 10A, and users are required to use room for use within 9A.

3. The output current is determined by the input parameters. The input current must not exceed 9A, and the efficiency is 70%(room for room) to calculate. The formula is used to calculate the module output MAX current value: LOUT = vin*6.3/vout.

4. When the input voltage is too low, the output power cannot be fully exerted. It is particularly obvious when power supply below 3V. Pay attention when the user uses a high power output user.

1. Do not contact the bottom potentiometer pinker area with a small resistance value with a small resistance value. The contact value of the contact meeting is changed and the output voltage fluctuates a large fluctuation.

2. When a large current measurement voltage is measuring voltage, please use a shorter/thick wire for connection (line resistance will affect the measurement voltage), or directly measure the terminal, otherwise the voltage measurement will be inaccurate.

3. The non -module limit of the above parameters, but leave the parameters that have been indicated after there is a certain amount of room. When the module tests, the output power runs over 50W in the case of cooling the refrigeration film.The environment is particularly important.

4. Regarding the use of the EN port, the EN port is connected to VIN by default. To open the voltage mode, EN is connected to the GND to shut down mode. Users need to pay attention to the shutdown mode.The output voltage will be slightly lower than the input and can output current.

5. In order to prevent the client's hand touch the module circuit, the chip is destroyed due to electrostatic and other reasons, so you should try to avoid the module from touching the circuit near the chip with your hand when powering.