TEA1202 Philips Semiconductors, TEA1202 Datasheet - Page 15

• Manufacturer Part Number: TEA1202
• Description: Battery power unit
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2000 Jun 08
handbook, full pagewidth
Battery power unit
Fig.7
Application in 2-cell NiCd or NiMH battery powered equipment with autonomous shut-down at low battery
voltage and using LDO1 as a switch.
low battery
detection
external
clock
C1
R7
R8
R9
L1
C5
C6
SYNC/PWM
SHDWN0
SHDWN2
LBO
LBI2
LBI1
Vref
LX1
LX2
U/D
IN2
UPCONVERTER
1
20
11
13
12
19
14
18
2
3
15
LOW BATTERY
TEA1202TS
TEA1202TS
DETECTOR
8
GND
DC/DC
15
equivalent block diagram
D1
17
GND0
16
10
5
4
6
7
9
ILIM
UPOUT/DNIN
FB0
OUT1
FB1
OUT2
FB2
regulator 1 switch
R1
R2
R5
R6
SWITCH
LDO1
R10
control
LDO2
C2
C4
MGU065
DC/DC
output
output
regulator 1
switch
regulator 2
output
low battery
detection
DC/DC
output
output
regulator 1
switch
control
regulator 1
switch
regulator 2
output
Objective specification
TEA1202TS