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L9904TR Datasheet(PDF) 1 Page - STMicroelectronics

Part # L9904TR
Description  MOTOR BRIDGE CONTROLLER
PDF  17 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9904TR Datasheet(HTML) 1 Page - STMicroelectronics

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L9904
September 2013
1FEATURES
OPERATING SUPPLY VOLTAGE 8V TO 28V,
OVERVOLTAGE MAX. 40V
OPERATING SUPPLY VOLTAGE 6V WITH
IMPLEMENTED STEPUP CONVERTER
QUIESCENT CURRENT IN STANDBY MODE
LESS THAN 50µA
ISO 9141 COMPATIBLE INTERFACE
CHARGE PUMP FOR DRIVING A POWER
MOS AS REVERSE BATTERY PROTECTION
PWM OPERATION FREQUENCY UP TO
30KHZ
PROGRAMMABLE CROSS CONDUCTION
PROTECTION TIME
OVERVOLTAGE, UNDERVOLTAGE, SHORT
CIRCUIT AND THERMAL PROTECTION
REAL TIME DIAGNOSTIC
2
DESCRIPTION
Figure 1. Package
Table 1. Order Codes
Part Number
Package
L9904
SO20
L9904TR
Tape & Reel
SO20
Control circuit for power MOS bridge driver in auto-
motive applications with ISO 9141bus interface.
MOTOR BRIDGE CONTROLLER
Figure 2. Block Diagram
VS
DIR
PWM
EN
RX
TX
CP
CB1
GH1
S1
GL1
CB2
GH2
S2
GL2
K
=
PR
VCC
=
=
ISO-Interface
VCC
GND
ST
Reference
BIAS
Charge
pump
Overvoltage
Undervoltage
PWM
R
DIR
R
RX
R
TX
R
0.5  VVS
RS2
RGL2
RGL1
RS1
RCP
REN
VCC
Timer
IKH
V S2TH
Thermal shutdown
V S1TH
DG
VCC
RDG
VSTH
fST
=
-
+
10
1
2
4
5
3
6
7
8
20
9
16
15
17
18
19
14
12
13
11
REV. 5


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