B3800M Bay Linear, Inc., B3800M Datasheet - Page 3

• Manufacturer Part Number: B3800M
• Description: 5.5mA 1MHz switching regulator controller step up low voltage (BIPOLAR)
• Manufacturer: Bay Linear, Inc.

Electrical Characteristics
Circuit to Prevent
Malfunction at low input
voltage (U.V.L.O.)
Soft Start
Short Circuit detection
(OSC)
Sawtooth wave oscillator
(OSC)
Error amplifier
Idle period adjustable
section
Output section
Output current setting
section/ Control section
Entire device
Bay Linear, Inc
Parameter
2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone]
Reset Voltage
Threshold voltage
Changing current
Voltage at soft start
completion
Charging current
Threshold voltage
Oscillation freq.
Frequency input
stability
Frequency variation
with temperature
Input threshold
voltage
V
V
temperature
Input bias current
Voltage gain
Frequency bandwidth
Maximum output
voltage range
Output source current
Output sink current
Maximum duty cycle
Output voltage
Output source current
Output sink current
Pull down resistance
Pin Voltage
Input off condition
Input on condition
Pin current range
Stand-by current
Average supply
current
T
T
input stability
variation with
Symbol
V
t
V
V
V
V
V
V
V
I
I
V
BW
DUTY
V
I
V
V
I
I
f
A
I
I
I
V
I
V
OM
OM
I
R
f
I
CCB
f
OFF
I
OM
cpc
TDT
OM
OH1
OH2
ON
CS
ocs
OL1
OL2
O
BR
CC
dv
Tdv
O
TH
PC
dt
B
BR
TS
R
V
O
T
+
-
+
_
+
-
V
V
R
V
T
V
V
T
V
A
R
V
R
R
V
R
R
V
R
R
R
BR/CTL pin open or
V
R
a
a
T
T
B
B
B
B
B
B
B
B
SCP
SCP
CC
FB
CC
IN
V
FB
CC
CC
cc
=-30°C to +85°C
= -30°C to +85°C
=3.0kΩ, C
=3.0kΩ, C
=390Ω, I
=750Ω, I
=390Ω, I
=750Ω, I
=390Ω, V
=390Ω, V
=390Ω,
=390Ω,
=0dB
=0V
=450mV
=0.8V
=2V to 15V
= 2V to 15V
=1.8V
=1.8V
Conditions
=0V
=0V
V
FB
=0.45V
-
-
-
-
-
-
O
O
O
O
CC
CC
= -15mA
= -10mA,
=15mA
=10mA,
T
T
=270pF
=270pF
=0.9V
=0.3V
Min.
0.78
-1.5
-1.5
-1.0
-1.8
400
480
-20
1.1
0.7
0.7
1.0
0.8
0.2
70
24
65
30
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Value
Typ.
0.87
0.05
-1.0
-1.0
-0.2
500
500
100
-40
-30
1.3
0.8
0.8
1.2
1.0
0.1
0.1
0.3
5.5
40
75
60
30
2
5
5
1
6
-
-
-
-
-
www.baylinear.com
B3800
Max.
-0.7
-0.7
-0.1
600
520
145
1.5
0.9
0.9
1.0
-24
-20
0.4
-45
0.9
0.2
0.2
0.2
9.3
10
20
85
40
0
1
-
-
-
-
-
-
-
-
mA
mA
Unit
mV
mV
mA
mA
mA
µA
µA
µA
µA
µA
kΩ
µA
µA
kH
Hz
V/
M
%
%
%
%
V
V
V
V
V
V
V
V
V
V
V
z