L9904 Ver la hoja de datos (PDF) - STMicroelectronics
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L9904 Datasheet PDF : 17 Pages
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L9904
MOTOR BRIDGE CONTROLLER
1 FEATURES
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
Figure 2. Block Diagram
Figure 1. Package
SO20
Table 1. Order Codes
Part Number
L9904
L9904TR
Package
SO20
Tape & Reel
2 DESCRIPTION
Control circuit for power MOS bridge driver in auto-
motive applications with ISO 9141bus interface.
VS 10
ST 1
-
+
= VSTH
Reference
BIAS
fST
VCC
Charge
pump
VCC
Overvoltage
RDG
DG 2
Undervoltage
Thermal shutdown
EN 4
REN
V S1TH =
DIR 5
RDIR
VCC
R PWM
PWM 3
PR 6
Timer
V S2TH =
RCP
11 CP
13 CB1
12 GH1
14 S1
RS1
19 GL1
RGL1
18 GL2
RGL2
17 S2
RS2
15 GH2
16 CB2
RX 7
R RX
VCC
TX
8
R TX
ISO-Interface
= 0.5 VVS
I KH
9K
20 GND
September 2013
REV. 5
1/17
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