Jumper Settings; Recommended Operating Conditions - Texas Instruments BQ24210/2 User Manual

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1.4

Jumper Settings

Jack Description
JP1 Programs the fast-charge current setting. 500 mA when JP1 ON; external setting
when JP1 OFF
JP2 Connect /EN and /PG together when JP2 ON to enable charger when power present
JP3 Programs the input voltage regulation threshold. 4.5V when JP3 ON; external setting
when JP3 OFF.
JP4 Limited power charge mode (LPCM) when JP4 ON; normal operation when JP4 OFF Jumper OFF (normal operation)
JP5 Select external TS input or internal TS setting
1-2 : External TS input
2-3 : Internal TS setting
JP6 The pullup power source supplies for the LEDs
1-2 : BAT
2-3 : VBUS
JP7 Charger EN / MODE
1-2 : OFF/HIGH
2-3 : ON/LOW
1.5

Recommended Operating Conditions

Supply voltage, V
BUS
Battery voltage, V
BAT
Supply current
Charge current, I
chrg
Operating junction temperature
range, T
J
An external resistor is used to program the VBUS_DPM. The programming resistor, R
the following equation:
(
VBUS_
R =
VDPM
Where:
VBUS_ is the desired input voltage regulation voltage threshold.
DPM
VBUS_ is the built-in offset threshold, nominally 3.5 V.
DPM_1
K is a gain factor found in the electrical specification.
VBUS_DPM
If VDPM pin is shorted to VSS; the VBUS_
If the VDPM pin is floated (open circuit), the IC operates in Battery Tracking mode. In this case, VBUS
DPM threshold is internally set as V
V).
Connecting JP3 set 4.5 V VDPM on EVM.
An external resistor is used to program the output current (50-800 mA). The equation for charge current is:
K
ISE T
R =
ISET
I
O UT
Where, I is the desired fast-charge current; K
OUT
The termination and precharge current are internally set at 10% and 20% of fast-charge current,
respectively. The precharge-to-fast-charge, V
Connecting JP1 set 500 mADC for fast-charge current and 100 mADC for precharge current on EVM.
SLUU477B – December 2010 – Revised November 2015
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Table 2. Jumper Settings
Table 3. Recommended Operating Conditions
Description
Input voltage
Voltage applied at VBAT terminal of J2
Maximum input current
Battery charge current
)
- VBUS_
DPM DPM_ 1
KVBUS_
DPM
DPM
, which is BAT + 100 mV. (BAT > 3.65 V) or 3.75 V (BAT ≤ 3.4
TRK
ISET
threshold is set to 2.5 V.
lowv
Copyright © 2010–2015, Texas Instruments Incorporated
Min Typ
4.5
0
0
0
0
must be clamped to 3.65 V.
is a gain factor found in the specification.
800-mA, Single-Input, Single-Cell, Li-Ion Battery Solar Charger
Introduction
Factory Setting
Jumper OFF (external setting)
Jumper OFF (external /EN)
Jumper OFF (external setting)
Jumper ON 1-2 (external TS)
Jumper ON 2-3 (VBUS)
Jumper ON 1-2 (charger OFF /
MODE High)
Max Unit Notes
7.3 V
4.2 V
0.8 A
0.8 A
125 °C
is dictated by
VDPM
(1)
(2)
3