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NNL10 SERIES
Non-Isolated DC/DC Converters
SELECTION GUIDE1
Nominal Input Voltage Output Voltage Output Current Min Load Full Load MAX Output Power Nominal Efficiency Min
Order Code NNL10-1 NNL10-2 NNL10-3
V 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0
V 0.9 1.0 1.2 1.5 1.8 2.0 2.5 3.3 0.9 1.0 1.2 1.5 1.8 2.0 2.5 3.3
A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
A 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0
W 9.0 10.0 12.0 15.0 18.0 20.0 25.0 33.0 9.0 10.0 12.0 15.0 18.0 20.0 25.0 33.0
% 79.7 81.8 84.3 86.5 88.2 89.2 91.2 92.1 79.7 81.8 84.3 86.5 88.2 89.2 91.2 92.1
FEATURES Industry Standard Footprint Short Circuit Protection High Efficiency Under Voltage Lock Out Output Voltage Trimming Operating Temperature Range -40C to 85C SMD Construction Optional DC OK Signal Options available without Trim and Remote Sense Functionality DESCRIPTION
The NNL10 series is part of a range of nonisolated, cost effective DC/DC converters offering high precision output voltages from a nominal 3.0-5.5 or 10.0-14.0 intermediate bus where isolation is not required. Available in both SMD and SIP mechanical formats.
NNL10-4 NNL10-5 NNL10-6 NNL10-7 NNL10-8 NNL10-9 NNL10-10 With DCOK NNL10-11 NNL10-12 NNL10-13 NNL10-14 NNL10-15 NNL10-16
INPUT CHARACTERISTICS1
Parameter Conditions MIN TYP MAX Units
Voltage Range
Under Voltage Lock Out Reflected Ripple Current Input No Load VIN = 5.5V VOUT = 0.9V Current VIN = 5.5V VOUT = 3.3V Input Standby VIN = 5.5V Module Disabled Current
VNOM = 4.0VDC VOUT < 2.75V VNOM = 4.0VDC VOUT > 3.0V Turn On Threshold VNOM = 4.0VDC Turn Off Threshold VNOM = 4.0VDC
3.0 4.0 2.8 2.7 30 100 140 1.5
5.5 5.5
V V mA p-p mA mA
OUTPUT CHARACTERISTICS1
Parameter Conditions MIN TYP MAX Units
Rated Current Voltage Set Point Accuracy Line Regulation Load Regulation Ripple & Noise Voltage Trim Remote Sense Transient Response External Load Capaitance
TA = -40C to 85C (see thermal performance characteristics) 1.0 Low line to high line 0% load to 100% load BW = DC to 20MHz -10 IOUT = 5.0A-10.0A-5.0A, Peak Deviation COUT = 1F//10F Settling Time 100 70 10,000 0.5 25
10.0 2.0 1.0 0.55 50 +10 0.5
A % % % mVp-p %VOUT V mV s F
1 Specifications typical at TA =25C, nominal input voltage and rated output current unless otherwise specified.
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Other customer specified options are available on request. Standard parts are supplied with Remote Sense and Voltage Trim functions. Please contact your sales representative or C&D Technologies account manager for further details.
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NNL10 SERIES
Non-Isolated DC/DC Converters
GENERAL CHARACTERISTICS1
Parameter Conditions MIN TYP MAX Units
ABSOLUTE MAXIMUM RATINGS
300 4.0 0 2.6 -500 TBA 0.3 100 kHz ms V A V A kHrs Short circuit protection Remote Sense DC OK Remote ON/OFF Trim Input Voltage VIN Minimum load Continuous VOUT0.5VDC -0.2Vdc to +17VDC 20mA -0.2VDC to +17VDC -0.3VDC to VOUT 6.5VDC 0%
Switching Frequency Start Delay Remote On/Off
From power on/remote off Module On (or pin unconnected) Module Off
MTTF
ENVIRONMENTAL1
Parameter Conditions MIN TYP MAX Units
Operation Over Temperature Protection Storage
See thermal performance characteristics Substrate temperature
-40 115 -55
85 125
C C C
OUTPUT VOLTAGE TRIMMING
The trimming input on the NNL10 allows output voltage adjustment by +/-10% of nominal output voltage by connection of a resistor or by application of a voltage to the Trim pin.
RINTERNAL VALUES
VOUT SET RINTERNAL
FIG.1
(kOhm) 5.1 30.1 59.0 100.0 100.0 100.0 78.7 59.0
FIG.2
(V) 0.9 1.0 1.2 1.5 1.8 2.0 2.5 3.3
VIN NNL10 TRIM RTRIM
VOUT
VIN RTRIM NNL10 TRIM
VOUT
GND
GND
To increase the output voltage, an external resistor (Fig. 1) or voltage source should be connected between the Trim pin and GND pin. RTRIM-UP = 24.080 VOUT - RINTERNAL K VTRIM-UP = 0.8 - VOUT x RINTERNAL 30.100
Vout is the required change in output voltage in V To decrease the output voltage, an external resistor (Fig. 2) or voltage source should be connected between the Trim pin and the VOUT pin. RTRIM-DOWN = VOUT -0.8 -1 x 30.100 - RINTERNAL K VOUT VTRIM-DOWN = 0.8 + VOUT x RINTERNAL 30.100
The trim pin should be left disconnected if not used.
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NNL10 SERIES
Non-Isolated DC/DC Converters
REMOTE SENSE FIG.3
VIN NNL10 VOUT SENSE GND LOAD The remote sense function compensates for voltage drops from the output of the NNL10 to the load point by regulating the output voltage at the load point. The voltage drop must not exceed 0.5V, although Trim and remote sense functions can be used in combination with each other, the maximum voltage increase is 0.5V. When increasing the output voltage the maximum output power of the NNL10 must not exceed the maximum output figures stated in the selection guide.
OUTPUT SEQUENCING
To simplify output sequencing, the NNL10 series offers an optional single wire interconnection that performs this function. Using this connection, up to four devices can be 'daisy chained' together, with the 'DC OK' signal from one converter signifying that the next converter can be enabled. A capacitor, simply connected to the daisy chain link, provides a settable delay in the sequence of the converters starting. Typical capacitor values and corresponding delays are shown in the table below. Figure 4 shows a typical sequencing configuration, along with the voltage outputs that it produces. As well as reducing component count, making use of the 'built-in' sequencing capability means that only a single PCB track is required for a full sequencing solution. VIN 3.0VDC 5.5VDC Capacitor Value 0.22F 0.22F Delay 1.8mS 0.6mS
FIG.4
VOUT 1 Bus Voltage VIN DC OK TPRESET VOUT 2 ON/OFF VIN VOUT 2 VOUT 1
VOUT 3 ON/OFF VIN DC OK TPRESET + TCAP VOUT 4 ON/OFF VIN VOUT 4 VOUT 3
Capacitor
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NNL10 SERIES
Non-Isolated DC/DC Converters
EFFICIENCY v LOAD GRAPHS (NNL10 VNOM = 4.0VDC) VOUT = 0.9V VOUT = 1.0V
VOUT = 1.2V
VOUT = 1.5V
VOUT = 1.8V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.3V
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NNL10 SERIES
Non-Isolated DC/DC Converters
THERMAL DERATING GRAPHS (NNL10 VNOM = 4.0VDC) VOUT = 0.9V VOUT = 1.0V
VOUT = 1.2V
VOUT = 1.5V
VOUT = 1.8V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.3V
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NNL10 SERIES
Non-Isolated DC/DC Converters
TYPICAL CHARACTERISTICS OUTPUT RIPPLE & NOISE
VIN = 4.75VDC VOUT = 3.3VDC IOUT = 10.0A VIN = 4.0VDC VOUT = 0.9VDC IOUT = 10.0A
START-UP FROM APPLICATION OF VIN
START-UP USING REMOTE ON/OFF
Response when remote on/off driven from an open collector output.
TRANSIENT RESPONSE
VIN = 4.0VDC VOUT = 3.3VDC IOUT Change = 50-100% VIN = 4.0VDC VOUT = 3.3VDC IOUT Change = 100-50%
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NNL10 SERIES
Non-Isolated DC/DC Converters
PIN CONNECTIONS
Pin Number
1 ON/OFF
2 VIN
3 DC OK*
4 GND
5 VOUT
6 TRIM
7 SENSE
* Pin 6 (DC OK) is an optional feature which allows multiple NNL10 DC/DC Converters to have sequenced outputs when used in conjunction with the Remote ON/OFF pin (see application note for further information).
MECHANICAL DIMENSIONS
SMD Package Style Bottom View 0.075 (1.91) 0.048 (1.22) 1 0.405 (10.29) 0.530 (13.46) 0.112 (2.84) 2 0.062 (1.57) 7 0.297 (7.54) 0.19 (4.83) 6 0.19 (4.83) 5 0.19 (4.83) 4 3 0.19 (4.83) 0.12 (3.04) 0.062 (1.58)
1.3 (33.0)
Unless otherwise stated all dimensions in inches(mm) 0.01(0.25).
0.326 (8.28) MAX
Weight: 5.7g
PACKAGING
Tray Dimensions (top view)
12.40(315.00) 1.614(41.0)
1.102 (28.0) 5.354 (136.0)
0.709(18.0)
Pick up location (top view)
0.265(6.73) Tray quantity: 28 +0.020(0.5) -- 0.00(0.0)
Unless otherwise stated all dimensions in inches(mm) 0.014(0.35).
0.476(12.08)
C&D Technologies Inc. reserve the right to alter or improve the specification, internal design or manufacturing process at any time, without notice. Please check with your supplier or visit our web site to ensure that you have the current and complete specification for your product before use. (c) C&D Technologies Inc. 2004 NDC NNL10.2 No part of this publication may be copied, transmitted or stored in a retrieval system or reproduced in any way including, but not limited to, photography, photocopy, magnetic or other recording means, without prior written permission from C&D Technologies Inc. Instructions for use are available from: www.cdpoweronline.com
C&D Technologies (NCL) Ltd Tanners Drive, Blakelands North Milton Keynes MK14 5BU, England Tel: +44 (0)1908 615232 Fax: +44 (0)1908 617545 email: info@cdtechno-ncl.com www.cdpoweronline.com
C&D Technologies Inc. 3400 E Britannia Drive, Tucson, Arizona 85706, USA Tel: +1 (800) 547-2537 Fax: +1 (520) 741-4598 email: sales@cdtechno.com
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