ZHCSTK2 October 2023 BQ25185
PRODUCTION DATA
Pin | I/O(1) | Description | |
---|---|---|---|
Name | NO. | ||
IN | 10 | P | DC input power supply. IN is connected to the external DC supply. Bypass IN to GND with at least 1 uF of capacitance using a ceramic capacitor. |
SYS | 1 | P | Regulated system output. Connect at least 10uF ceramic capacitor (at least 1uF of ceramic capacitance with DC bias de-rating) from SYS to GND as close to the SYS and GND pins as possible. |
BAT | 2 | P | Battery connection. Connect to the positive terminal of the battery. Bypass BAT to GND with at least 1uF of ceramic capacitance. |
GND | 5 | - | Ground connection. Connect to the ground plane of the circuit. |
ILIM/VSET | 7 | I/O | Input current limit and battery regulation voltage program input. Refer to ILIM/VSET Control |
ISET | 8 | I/O | Fast charge current program input. We recommend an RC for small charge current values. Prefer to work only with one resistor. |
STAT1 | 9 | O | Open drain status output. Can be pulled up to 1- 20kohm resistor. Typical pull up voltage = 1.8V, Max pull up voltage = 5V. Refer to the Status Pins section for more details. |
TS/MR | 6 | I/O | Manual reset input/ NTC thermistor pin. TS/MR is a general purpose input that must be held low for greater than tLPRESS to go into Factory mode. TS/MR may be driven by a momentary push-button or a MOS switch. The TS/MR pin can also have an NTC thermistor connected on to it. Refer to External NTC Montitoring Section (TS) section. |
CE | 4 | I | Charge enable active-low input. Connect CE to a high logic level to disable charging. Connect to a low logic level to enable charging. |
STAT2 | 3 | O | Open drain status output. Can be pulled up to 1- 20kohm resistor. Typical pull up voltage = 1.8V, Max pull up voltage = 5V. Refer to the Status Pins section for more details. |