|
|
PDF STBC02 Data sheet ( Hoja de datos )
| Número de pieza | STBC02 | |
| Descripción | Li-Ion linear battery charger | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de STBC02 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
STBC02
Li-Ion linear battery charger with LDO, load switches and reset
generator
Datasheet - production data
Features
Charges single-cell Li-Ion batteries with
CC/CV algorithm and charge termination
Fast charge current up to 450 mA
Pre-charge current from 1 mA to 450 mA
Adjustable floating voltage up to 4.45 V
Integrated low quiescent LDO regulator
Automatic power path management
Auto-recharge function
Embedded protection circuit module (PCM)
featuring battery overcharge, battery
over-discharge and battery overcurrent
protections
Charging timeout to terminate the charging
process for safety reasons
Shipping mode feature allows battery low
leakage when over-discharged
Very low battery leakage in over-discharge
and shutdown mode
Charge/fault status output
Battery voltage pin to allow external gauging
Two 3 Ω SPDT load switches
Reset generator triggered by USB detection
SWIRE allows the STBC02 functions to be
controlled
Available in Flip Chip 30, 400 um pitch
package
Rugged ±4 kV HBM, ESD protection on the
most critical pins
Applications
Smart watches and wearable devices
Fitness and medical accessories
Li-Ion and other Li-Poly battery rechargeable
equipment
Description
The STBC02 is a highly integrated power
management, embedding a linear battery
charger, a 150 mA LDO, 2 SPDT load switches,
a smart reset/watchdog block and a protection
circuit module (PCM) to prevent the battery from
being damaged under fault conditions.
The STBC02 uses a CC/CV algorithm to charge
the battery; the fast charge and the pre-charge
current can be both independently programmed
using dedicated resistors. The termination current
is set by default, being 5% of the programmed
fast charge current, but it can also be fixed to
different values. Likewise, the battery floating
voltage value is programmable and can be set to
a value up to 4.45 V.
The STBC02 also features a charger enable
input to stop the charging process anytime.
The STBC02 is automatically powered off from
the connected battery when the IN pin is not
connected to a valid power source (battery
mode).
A battery under/overtemperature condition can
be detected by using an external circuitry (NTC
thermistor).
The STBC02 draws less than 10 nA from the
connected battery in shipping mode conditions,
so to maximize the battery life during end product
shelf life. The device is available in the Flip Chip
30 package.
May 2016
DocID029261 Rev 1
This is information on a product in full production.
1/38
www.st.com
1 page  
STBC02
List of figures
List of figures
Figure 1: STBC02 application schematic....................................................................................................6
Figure 2: Pin configuration top through view ..............................................................................................7
Figure 3: Battery mode 3 V LDO load transient response........................................................................14
Figure 4: Thermal management ...............................................................................................................14
Figure 5: VIN mode, overvoltage protection .............................................................................................14
Figure 6: Pre-charge to fast charge mode transition threshold ................................................................14
Figure 7: Pre-charge to fast charge mode transition deglitch...................................................................15
Figure 8: Pre-charge to fast charge mode to no charge mode transition .................................................15
Figure 9: Wake-up pin operation ..............................................................................................................15
Figure 10: VIN plug, charging initialization ...............................................................................................15
Figure 11: Wake-up operation, VSYS and LDO rise overview .................................................................16
Figure 12: Wake-up operation, VSYS and LDO rise detail.......................................................................16
Figure 13: VIN plug, charging initialization battery mode to VIN mode transition ....................................16
Figure 14: Shutdown mode entry and exit ................................................................................................16
Figure 15: VBAT to VSYS drop and VSYS to VLDO drop (10 mA)....................................................................17
Figure 16: VBAT to VSYS drop and VSYS to VLDO drop (100 mA)..................................................................17
Figure 17: CEN operation .........................................................................................................................17
Figure 18: CEN operation, VIN plug/unplug .............................................................................................17
Figure 19: Smart reset timing diagram .....................................................................................................21
Figure 20: Watchdog timing diagram........................................................................................................22
Figure 21: Single wire programming (SW_SEL INPUT)...........................................................................24
Figure 22: Start and stop timing bit range.................................................................................................25
Figure 23: STBC02 block diagram............................................................................................................26
Figure 24: Charging flowchart...................................................................................................................29
Figure 25: End-of-charge flowchart ..........................................................................................................30
Figure 26: CC/CV charging profile (not in scale) ......................................................................................30
Figure 27: Flip Chip 30 (2.59x2.25 mm) package outline.........................................................................34
Figure 28: Flip Chip 30 (2.59x2.25 mm) recommended footprint .............................................................35
DocID029261 Rev 1
5/38
5 Page 
STBC02
Symbol
Parameter
VOCHG
Battery voltage
overcharge threshold
VODC
VODCR
VWAKE-UP
RON-IS
RON-BS
RON-BATMS
RON-LOADSW1
Battery voltage
over-discharge
threshold
Battery voltage
over-discharge
release threshold
Wake-up voltage
threshold
Input to SYS
on-resistance
Battery to SYS
on-resistance
BATSNS to BATMS
on-resistance
Input to output load
switch 1 resistance
RON-LOADSW2
Input to output load
switch 2 resistance
VOL
VOH
IOHZ
VIL
VIH
RUP
VLDO
ΔVOUT-LOAD
Output low level
(CHG, nRESET,
RST_PENDING)
Output high level
(RST_PENDING)
High level open drain
output current (CHG,
nRESET)
Logic low input level
(CEN, SW_SEL,
RESET_NOW)
Logic high input level
(CEN, SW_SEL,
RESET_NOW)
CEN pull-up resistor
LDO output voltage
LDO static load
regulation
Test conditions
Charging in CV mode for
IFAST<20 mA
VBAT rising, BATSNSFV short to
battery terminal
VBAT rising, BATSNSFV short to
battery terminal with floating
voltage adjustment enabled
VBAT rising, external resistor
between BATSNSFV and
battery terminal
VIN<VUVLO, ILDO=150 mA,
BATSNSFV and BATSNS short
to battery terminal
VUVLO<VIN<VOVP, ILDO = 150 mA,
BATSNSFV and BATSNS short
to battery terminal
Electrical characteristics
Min.
Typ.
Max. Unit
See Table 10: "IFAST and IEND"
4.245 4.275 4.305 V
VFLOAT+75
mV
VFLOAT+75
mV
2.750 2.8 2.850 V
3.0 V
VBAT>3 V rising, ILDO=150 mA
VBAT
V
0.25 0.35 Ω
ISINK=500 µA
VSW1_I=1.8 V to 5 V SW1_OA or
SW1_OB test current=50 mA
VSW2_I =1.8 V to 5 V
SW2_OA or SW2_OB test
current=50 mA
290
2.0
2.0
0.35
0.4 Ω
550 Ω
3.8 Ω
3.4 Ω
ISINK=5 mA
0.4 V
IOH=5 mA (referred to LDO
output)
LDO-
200
mV
VOH=5 V
1 μA
All versions with LDO 3 V, 3.1 V
or 3.3 V
1.6
ILDO=1 mA
ILDO=1 mA to 150 mA
375
-3
0.4 V
V
500
VLDO(2)
±0.002
625 kΩ
+3 %
±0.003 %/mA
DocID029261 Rev 1
11/38
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet STBC02.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| STBC02 | Li-Ion linear battery charger | STMicroelectronics |
| STBC08 | 800 mA standalone linear Li-Ion battery charger |  ST Microelectronics |
| STBC08PMR | 800 mA standalone linear Li-Ion battery charger | STMicroelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |