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參數(shù)資料
| 型號(hào)： | E910.25 |
| 廠商： | ELMOS SEMICONDUCTOR AG |
| 英文描述： | Adjustable, wide input range PFM controller family |
| 中文描述： | 可調(diào)，寬輸入范圍烤瓷控制器系列 |
| 文件頁(yè)數(shù)： | 1/1頁(yè) |
| 文件大小： | 88K |
| 代理商： | E910.25 |
BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
28
BLOCK DIAGRAM
FEATURES
Supply voltage range VS
3
V to
60
V
Up to
90
% efficiency
40
μA standby current
180
μA circuit operating current
1.5
V to
24
V or more adjustable output voltage
Up to
300
kHz switching frequency
Improved current-limited PFM control scheme
High current driver for external MOSFET
Under-voltage lockout and thermal shutdown
–
40
°C to +
125
°C operating temperature
SO
8
n package
910.26
basis version
910.24
additive with peak current halving for
medium loads and extended max. switch-on-time
910.25
additive with peak current halving for
medium loads and extended max. switch-on-time
and fault protection
APPLICATION
Minimum component DC-DC converters
14
V,
28
V or
42
V automotive systems
Power conditioning for portable equipment
High efficiency on-card switching regulators
DESCRIPTION
The family of highly flexible, easy to use PFM controllers is ideal
for the use in wide input range switching regulator applications.
An advanced PFM control scheme gives these devices the benefits
of PWM converters with high efficiency for heavy loads, while us-
ing very low operating current for light loads to maintain excel-
lent behaviour with output load variation.
The switching circuits are suitable for topologies requiring low
side FET, such as boost, flyback, Sepic, etc. Depending on the uti-
lized topology the controllers are capable of producing regulated
positive or negative output voltage.
Operating from
3
V to
60
V supply and in temperature ranges from
–
40
°C to +
125
°C the device is well suited for automotive appli-
cations. Requiring a minimum number of external components,
these regulators are simple to use and cost-saving.
Self-protection features include an overload detection circuit, an
overtemperature shutdown under fault conditions and an under-
voltage lockout.
Adjustable, wide input range PFM controller family
VBAT
VS
PFM
circuit
int. supply &
references
on/off
logic
gain
control
overload
protection
VSM
ON
VSM
PGND
Instr.
Ampl.
+
-
VFB
AGND
ISEN
MDRV
VOut
DRV
Wide range SMPS with watchdog
Wide range SMPS with reset
PFM controller family
Step down converter, fully integrated
Step down converter, for external FET
PWM controller for LED
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| E910.26 | Adjustable, wide input range PFM controller family |
| E910.24 | Adjustable, wide input range PFM controller family |
| E910.27A | External Adjustable High Efficiency PFM Step-Down Converter |
| E910.32 | Low side driver (8 channel, parallel interface) |
| E910.33 | Contact monitor (8 channel to GND, parallel interface) |
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