JAJSGQ2F August 2013 – March 2019
PRODUCTION DATA.
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
5 | EN | Input | Active low digital programming input for enabling/disabling the IC. Connect to GND to enable the IC. |
20 | LBOOST | Input | Inductor connection for the boost charger switching node. Connect a 22-µH inductor between this pin and pin 2 (VIN_DC). |
6 | NC | Input | Connect to VSS via the IC's PowerPad™. |
16 | NC | Input | Connect to ground using the IC's PowerPad. |
17 | NC | Input | Connect to ground using the IC's PowerPad. |
11 | OK_HYST | Input | Connect to the mid-point of external resistor divider between VRDIV and GND for setting the VBAT_OK hysteresis threshold. If not used, connect this pin to GND. |
12 | OK_PROG | Input | Connect to the mid-point of external resistor divider between VRDIV and GND for setting the VBAT_OK threshold. If not used, connect this pin to GND. |
13 | VBAT_OK | Output | Digital output for battery good indicator. Internally referenced to the VSTOR voltage. Leave floating if not used. |
7 | VBAT_OV | Connect to the mid-point of external resistor divider between VRDIV and GND for setting the VSTOR = VBAT_SEC overvoltage threshold. | |
14 | VBAT_PRI | Input | Primary (nonrechargeable) energy storage element HiZ sense input. Leave floating if not used. |
18 | VBAT_SEC | I/O | Connect a secondary (rechargeable) storage element with at least 100 µF of equivalent capacitance to this pin. |
10 | VB_PRI_ON | Output | Active low push-pull driver for the primary (nonrechargeable) energy storage PMOS FET. Leave floating if not used. |
9 | VB_SEC_ON | Output | Active low push-pull driver for the secondary (rechargeable) energy storage PMOS FET. Leave floating if not used. |
2 | VIN_DC | Input | DC voltage input from energy harvesters. Connect at least a 4.7-µF capacitor as close as possible between this pin and pin 1. |
3 | VOC_SAMP | Input | Sampling pin for MPPT network. Connect to VSTOR to sample at 80% of input soure open circuit voltage. Connect to GND for 50% or connect to the mid-point of external resistor divider between VIN_DC and GND. |
4 | VREF_SAMP | Input | Connect a 0.01-µF low-leakage capacitor from this pin to GND to store the voltage to which VIN_DC will be regulated. This voltage is provided by the MPPT sample circuit. |
8 | VRDIV | Output | Connect high side of resistor divider networks to this biasing voltage. |
1 | VSS | Input | General ground connection for the device |
15 | VSS | Supply | Signal ground connection for the device. |
19 | VSTOR | Output | Connection for the output of the boost charger, which is typically connected to the system load. Connect at least a 4.7-µF capacitor in parallel with a 0.1-µF capacitor as close as possible to between this pin and pin 1 (VSS). |