Renesas M51951A Voltage detecting, system resetting ic sery Datasheet

M51951A,B/M51952A,B
Voltage Detecting, System Resetting IC Series
REJ03D0775-0400
Rev.4.00
Sep 18, 2007
Description
M51951A,B/M51952A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all
types of logic circuits such as CPUs.
They include a built-in delay circuit to provide a retardation time (200 µs Typ).
They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping
circuit.
Features
• Few external parts
• Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage):
0.6 V (Typ) at RL = 22 kΩ
• Wide supply voltage range: 2 V to 17 V
• Wide application range
Application
• Reset circuit of Pch, Nch, CMOS, microcomputer, CPU and MCU, Reset of logic circuit, Battery check circuit,
switching circuit back-up voltage, level detecting circuit, waveform shaping circuit, delay waveform generating
circuit, DC/DC converter, over voltage protection circuit
Recommended Operating Condition
• Supply voltage range: 2 V to 17 V
Pin Arrangement
M51951AL/BL
M51952AL/BL
M51951ASL/BSL
M51952ASL/BSL
M51951AML/BML
M51952AML/BML
5 Output
3 Output
4 NC
2 GND
3 GND
1 Supply voltage
2 NC
(Top view)
1 Supply voltage
Package: PLZZ0004CB-A (SOT-89)
(Top view)
Package: 5P5T
1. Supply voltage
2. GND
1
3. Output
2
3
(Top view)
Package: PRSS0003DF-A (TO-92L)
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
Page 1 of 7
M51951A,B/M51952A,B
Block Diagram
M51951A, B
Supply
voltage
M51952A, B
25µA
Typ
R1
25µA
Typ
Output
+
R2
C
Delay capacitor
1.25V
Output
–
–
+
A: Built-in Load
B: Open Collector
R1
–
R2
Supply
voltage
A: Built-in Load
B: Open Collector
1.25V
GND
+
C
Delay capacitor
GND
Operating Waveform
4.25V
0.65V
t
H
td
td
L
Output
undefined
td ≈ 200µs
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
Page 2 of 7
Supply voltage
M51952A, B
Output state
Output state
Supply voltage
M51951A, B
t
4.25V
t
H
td
td
L
td ≈ 200µs
t
M51951A,B/M51952A,B
Absolute Maximum Ratings
(Ta = 25°C, unless otherwise noted)
Item
Symbol
Ratings
Unit
Supply voltage
VCC
18
V
Output sink current
Isink
6
mA
Output voltage
VO
VCC
V
18
Power dissipation
Pd
Thermal derating
Type A (output with constant current load)
Type B (open collector output)
450
Kθ
Conditions
mW
5-pin SIP
700
3-pin SIP
500
3-pin SOP
4.5
mW/°C
Ta ≥ 25°C
5-pin SIP
7
3-pin SIP
5
3-pin SOP
Operating temperature
Topr
–30 to +85
°C
Storage temperature
Tstg
–40 to +125
°C
Electrical Characteristics
(Ta = 25°C, unless otherwise noted)
• “L” reset type M51951A, M51951B
• “H” reset type M51952A, M51952B
Item
Symbol
Min
Typ
Max
Detecting voltage
VS
4.05
4.25
4.45
V
Hysteresis voltage
∆VS
30
50
80
mV
Detecting voltage
temperature coefficient
VS/∆T
—
0.01
—
%/°C
Circuit current
ICC
µA
Delay time
tpd
Output saturation
voltage
Vsat
Threshold operating
voltage
VOPL
Output leakage
current
IOH
Output load current
IOC
Output high voltage
VOH
Unit
—
450
680
—
420
630
80
200
500
µs
—
0.2
0.4
V
—
0.2
0.4
Test Conditions
Type A, VCC = 5V
Type B, VCC = 5V
L reset type, VCC = 4V, Isink = 4mA
H reset type, VCC = 5V, Isink = 4mA
—
0.67
0.8
—
0.55
0.7
—
—
30
nA
Type B
–40
–25
–17
µA
Type A, VCC = 5V, VO = 1/2 × VCC
VCC–0.2
VCC–0.06
—
V
Type A
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
Page 3 of 7
V
L reset type minimum supply
voltage for IC operation
RL = 2.2kΩ, Vsat ≤ 0.4V
RL = 100kΩ, Vsat ≤ 0.4V
M51951A,B/M51952A,B
Typical Characteristics
Thermal Derating
(Maximum Rating)
Detection Voltage vs. Ambient Temperature
(Supply voltage detection series)
4.34
800
Detection Voltage VS (V)
Power Dissipation Pd (mW)
1000
3-pin SIP
600
3-pin SOP
5-pin SIP
400
200
0
0
25
50
75
100
4.32
4.30
4.28
4.26
VSL
4.24
4.22
–40 –20
125
Ambient Temperature Ta (°C)
250
VCC = 5V
200
10V
150
VCC = 15V
100
50
20
40
60
1.0
0.1
4
5
Output Sink Current Isink (mA)
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
Page 4 of 7
Ta = 25°C
RL = 2.2kΩ
0.4
RL = 22kΩ
RL = 100kΩ
0.2
0.2
0.4
0.6
0.8
1.0
Output Load Current vs. Output Voltage
(M5195xA)
Output Load Current ICC (µA)
Output Saturation Voltage Vsat (V)
0.2
3
80 100
Supply Voltage VCC (V)
Supply voltage detecting "L" reset type
: VCC = 4V
Except above mentioned
: VCC = 5V
2
60
0.6
0
0
80 100
Output Saturation Voltage vs. Output Sink Current
0.3
1
40
0.8
Ambient Temperature Ta (°C)
0
0
20
Threshold Operating Voltage
([L] reset type)
Output Voltage VOUT (V)
Delay Time tpd (µs)
300
0
0
Ambient Temperature Ta (°C)
Delay Time vs. Ambient Temperature
(M5195xx, Built-in capacitor type)
350
0
–40 –20
VSH
6
–40
–30
–20
VCC = 5V
VCC = 10V
VCC = 15V
–10
0
0
4
8
12
Output Voltage VO (V)
16
M51951A,B/M51952A,B
Circuit Current ICC (µA)
Circuit Current vs. Ambient Temperature
(M51951B, M51952B)
700
600
500
VCC = 5V
400
300
200
100
0
–40 –20
0
20
40
60
80 100
Ambient Temperature Ta (°C)
Example of Application Circuit
Reset Circuit of M5195xx Series
Supply
voltage
M51951x
M51952x
GND
RL
Output
Supply
voltage
VCC
RESET (RESET)
Logic circuit
GND
Figure 1 Reset Circuit of M5195xx Series
Notes: 1. When the detecting supply voltage is 4.25 V, M51951, M51952, M51953 and M51954 are used.
When the voltage is anything except 4.25 V, M51955, M51956, M51957 and M51958 are used.
2. When the delay time is short, M51951, M51952, M51955 and M51956 are available. These ICs have a
delay capacity and the delay time is about 200 µs.
If a longer delay time is necessary, M51953, M51954, M51957 and M51958 are used.
3. If the M5195xx and the logic circuit share a common power source, type A (built-in load type) can be used
whether a pull-up resistor is included in the logic circuit or not.
4. The logic circuit preferably should not have a pull-down resistor, but if one is present, add load resistor RL to
overcome the pull-down resistor.
5. When the reset terminal in the logic circuit is of the low reset type, M51951, M51953, M51955 and M51957
are used and when the terminal is of the high reset type, M51952, M51954, M51956 and M51958 are used.
6. When a negative supply voltage is used, the supply voltage side of M5195xx and the GND side are
connected to negative supply voltage respectively.
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
Page 5 of 7
M51951A,B/M51952A,B
Package Dimensions
5P5T
Plastic 5pin 240mil SIP
EIAJ Package Code
SIP5-P-240-2.54
JEDEC Code
–
Weight(g)
0.22
Lead Material
Cu Alloy
D
L
A1
A
A2
E
Symbol
1
5
b
e
E1
b2
c
b1
SEATING PLANE
Package Name
SOT-89
JEITA Package Code
SC-62
RENESAS Code
PLZZ0004CB-A
MASS[Typ.]
0.48g
Previous Code

Unit: mm
4.6Max
1.5 ± 0.1
4.2Max
0.8Min
2.5 ± 0.1
1.6 ± 0.2
0.58Max
1.5
3.0
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
Page 6 of 7
0.48Max
A
A1
A2
b
b1
b2
c
D
E
E1
e
L
Dimension in Millimeters
Min
Nom
Max
–
–
6.1
–
–
1.4
–
–
4.0
0.4
0.5
0.6
1.1
1.2
1.5
0.75
0.85
1.15
0.22
0.27
0.34
11.7
11.9
11.5
1.77
1.97
2.17
0.6
0.7
0.8
–
–
2.54
–
–
3.0
+0.03
0.4 –0.05
M51951A,B/M51952A,B
JEITA Package Code

RENESAS Code
PRSS0003DF-A
Package Name
TO-92L
MASS[Typ.]
0.34g
8.2 Max
φ 5.1 Max
2.2 Max
9.5 Min
0.8
0.5
1.27
1.27
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
Page 7 of 7
0.5
4.1 Max
1.35
4.1
Unit: mm
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