TEA1211HN Philips Semiconductors, TEA1211HN Datasheet - Page 4

• Manufacturer Part Number: TEA1211HN
• Description: High efficiency auto-up/down DC/DC converter
• Manufacturer: Philips Semiconductors

Philips Semiconductors
5
6
2003 Oct 13
handbook, full pagewidth
LXA
IN
LXA
LXA
GND
n.c.
GND
n.c.
GND
LXA
LXA
SCL
SDA
LXB
LXB
GND
High efficiency auto-up/down
DC/DC converter
SYMBOL
BLOCK DIAGRAM
PINNING
IN
2, 31, 32
PIN
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
TEMPERATURE
PROTECTION
OSCILLATOR
SYNC/PWM
SELECTOR
INTERNAL
SUPPLY
13 MHz
CLOCK
n.c.
inductor connection 1
input voltage
inductor connection 1
inductor connection 1
ground
not connected
ground
not connected
ground
inductor connection 1
inductor connection 1
serial clock input line I
serial data input/output line
I
inductor connection 2
inductor connection 2
ground
2
29
6, 8, 17, 19
C-bus
TEA1211HN
DESCRIPTION
SHDWN
28
I
2
C-BUS INTERFACE
CONTROLLER
sense FET
DIGITAL
SCL
12
P-type power FET
2
C-bus
Fig.1 Block diagram.
P-down
SDA
13
Current limit
comparator
4
n.c.
GND
n.c.
GND
LXB
LXB
OUT
LXB
OUT
OUT
FB
SHDWN
SYNC/PWM
ILIM
IN
IN
ILIM
SYMBOL
30
N-down
GND
LXA
power FETs
1, 3, 4,
10, 11
5, 7, 9, 16, 18, 20
N-type
PIN
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
LXB
14, 15, 21, 22, 24
N-up
not connected
ground
not connected
ground
inductor connection 2
inductor connection 2
output voltage
inductor connection 2
output voltage
output voltage
feedback input
shut-down input
synchronization clock input,
PWM-only input
current limit resistor connection
input voltage
input voltage
REFERENCE
P-type power FET
BANDGAP
Window
comparator
P-up
DESCRIPTION
Preliminary specification
TEA1211HN
23, 25, 26
MDB001
27
OUT
FB