SIP42104 Datasheet, PDF (1/11 Pages) Vishay Siliconix – H-Bridge Driver and Pulse Width Controller for Digital Camera Micro Modules

SiP42104
Vishay Siliconix
H-Bridge Driver and Pulse Width Controller
for Digital Camera Micro Modules
DESCRIPTION
The SiP42104 is a 250 mA integrated H-bridge driver and
programmable output-pulse-width controller. It offers a
complete and cost-effective solution for micro camera focus
module applications such as shutter, iris, lens cover and
Infrared filter drivers. The output voltage direction of the
H-bridge is set by the presence of the rising or falling edge
at the digital interface pin IN and the corresponding
on-duration is set by the RC pin time constant. During
time-out, the input deglitcher-latch is transparent to
input noise durations of less than 300 ns. Internal
breakbefore-make prevents output shoot-through. When the
H-bridge turns off after time-out, the lower N-channel
MOSFETs are turned on for a short interval to prevent
turning on their body diodes. The low IN threshold logic and
the sub micro-amp steady state quiescent current is ideal for
low battery applications.
The SiP42104 is offered in the ultra-small lead (Pb)-free
SC-89 package (SOT666) and it is rated over the industrial
ambient range of - 40 °C to + 85 °C.
FEATURES
• Low supply range: 2.3 to 4.2 V
• Low R_H: 0.85 Ω at 2.8 V and 150 mA
• Output current up to 250 mA
• Output voltage direction depends on input
Rising or falling edges
RoHS
COMPLIANT
• Break before make cross-over protection
• 300 ns de-glitch circuit
• Programmable RC timer to set output pulse width
• Sub micro-amp quiescent current
• SC89-6L package (1.6 x 1.6 x 0.6 mm)
APPLICATIONS
• Digital camera
• Cell phones
• Small DC motor control
• Dual-stage latchable relay driver
TYPICAL APPLICATION CIRCUIT
V_DD
IN
1.75 µA
INPUT
BUFFER
AND
DEGLITCHER
SW1
SW2
TIMER
RC
AND
PULSE WIDTH
CONTROLLER
R
C
OUT2
H-BRIDGE
DRIVER
AND
BBM
M1 M3
M2
M4
L_LOAD
R_LOAD
GND
OUT1
Document Number: 74633
S-80224-Rev. C, 04-Feb-08
Figure 1.
www.vishay.com
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